i965: implement querying __DRI_IMAGE_ATTRIB_OFFSET.
[mesa.git] / src / mesa / drivers / dri / i965 / brw_eu_emit.c
index 308b305458e9ac244e79d90c63f6db5d6defbdd3..c98867aa6c9112af5ce0ee78ff61f6ba4587dea9 100644 (file)
 
 #include "util/ralloc.h"
 
-/***********************************************************************
- * Internal helper for constructing instructions
- */
-
-static void guess_execution_size(struct brw_compile *p,
-                                brw_inst *insn,
-                                struct brw_reg reg)
-{
-   const struct brw_context *brw = p->brw;
-
-   if (reg.width == BRW_WIDTH_8 && p->compressed) {
-      brw_inst_set_exec_size(brw, insn, BRW_EXECUTE_16);
-   } else {
-      /* Register width definitions are compatible with BRW_EXECUTE_* enums. */
-      brw_inst_set_exec_size(brw, insn, reg.width);
-   }
-}
-
-
 /**
  * Prior to Sandybridge, the SEND instruction accepted non-MRF source
  * registers, implicitly moving the operand to a message register.
@@ -63,12 +44,12 @@ static void guess_execution_size(struct brw_compile *p,
  * explicit move; it should be called before emitting a SEND instruction.
  */
 void
-gen6_resolve_implied_move(struct brw_compile *p,
+gen6_resolve_implied_move(struct brw_codegen *p,
                          struct brw_reg *src,
                          unsigned msg_reg_nr)
 {
-   struct brw_context *brw = p->brw;
-   if (brw->gen < 6)
+   const struct gen_device_info *devinfo = p->devinfo;
+   if (devinfo->gen < 6)
       return;
 
    if (src->file == BRW_MESSAGE_REGISTER_FILE)
@@ -76,6 +57,7 @@ gen6_resolve_implied_move(struct brw_compile *p,
 
    if (src->file != BRW_ARCHITECTURE_REGISTER_FILE || src->nr != BRW_ARF_NULL) {
       brw_push_insn_state(p);
+      brw_set_default_exec_size(p, BRW_EXECUTE_8);
       brw_set_default_mask_control(p, BRW_MASK_DISABLE);
       brw_set_default_compression_control(p, BRW_COMPRESSION_NONE);
       brw_MOV(p, retype(brw_message_reg(msg_reg_nr), BRW_REGISTER_TYPE_UD),
@@ -86,7 +68,7 @@ gen6_resolve_implied_move(struct brw_compile *p,
 }
 
 static void
-gen7_convert_mrf_to_grf(struct brw_compile *p, struct brw_reg *reg)
+gen7_convert_mrf_to_grf(struct brw_codegen *p, struct brw_reg *reg)
 {
    /* From the Ivybridge PRM, Volume 4 Part 3, page 218 ("send"):
     * "The send with EOT should use register space R112-R127 for <src>. This is
@@ -96,8 +78,8 @@ gen7_convert_mrf_to_grf(struct brw_compile *p, struct brw_reg *reg)
     * Since we're pretending to have 16 MRFs anyway, we may as well use the
     * registers required for messages with EOT.
     */
-   struct brw_context *brw = p->brw;
-   if (brw->gen >= 7 && reg->file == BRW_MESSAGE_REGISTER_FILE) {
+   const struct gen_device_info *devinfo = p->devinfo;
+   if (devinfo->gen >= 7 && reg->file == BRW_MESSAGE_REGISTER_FILE) {
       reg->file = BRW_GENERAL_REGISTER_FILE;
       reg->nr += GEN7_MRF_HACK_START;
    }
@@ -109,11 +91,11 @@ gen7_convert_mrf_to_grf(struct brw_compile *p, struct brw_reg *reg)
  * The hardware encoding may depend on whether the value is an immediate.
  */
 unsigned
-brw_reg_type_to_hw_type(const struct brw_context *brw,
-                        enum brw_reg_type type, unsigned file)
+brw_reg_type_to_hw_type(const struct gen_device_info *devinfo,
+                        enum brw_reg_type type, enum brw_reg_file file)
 {
    if (file == BRW_IMMEDIATE_VALUE) {
-      const static int imm_hw_types[] = {
+      static const int imm_hw_types[] = {
          [BRW_REGISTER_TYPE_UD] = BRW_HW_REG_TYPE_UD,
          [BRW_REGISTER_TYPE_D]  = BRW_HW_REG_TYPE_D,
          [BRW_REGISTER_TYPE_UW] = BRW_HW_REG_TYPE_UW,
@@ -131,11 +113,11 @@ brw_reg_type_to_hw_type(const struct brw_context *brw,
       };
       assert(type < ARRAY_SIZE(imm_hw_types));
       assert(imm_hw_types[type] != -1);
-      assert(brw->gen >= 8 || type < BRW_REGISTER_TYPE_DF);
+      assert(devinfo->gen >= 8 || type < BRW_REGISTER_TYPE_DF);
       return imm_hw_types[type];
    } else {
       /* Non-immediate registers */
-      const static int hw_types[] = {
+      static const int hw_types[] = {
          [BRW_REGISTER_TYPE_UD] = BRW_HW_REG_TYPE_UD,
          [BRW_REGISTER_TYPE_D]  = BRW_HW_REG_TYPE_D,
          [BRW_REGISTER_TYPE_UW] = BRW_HW_REG_TYPE_UW,
@@ -153,83 +135,100 @@ brw_reg_type_to_hw_type(const struct brw_context *brw,
       };
       assert(type < ARRAY_SIZE(hw_types));
       assert(hw_types[type] != -1);
-      assert(brw->gen >= 7 || type < BRW_REGISTER_TYPE_DF);
-      assert(brw->gen >= 8 || type < BRW_REGISTER_TYPE_HF);
+      assert(devinfo->gen >= 7 || type < BRW_REGISTER_TYPE_DF);
+      assert(devinfo->gen >= 8 || type < BRW_REGISTER_TYPE_HF);
       return hw_types[type];
    }
 }
 
 void
-brw_set_dest(struct brw_compile *p, brw_inst *inst, struct brw_reg dest)
+brw_set_dest(struct brw_codegen *p, brw_inst *inst, struct brw_reg dest)
 {
-   const struct brw_context *brw = p->brw;
+   const struct gen_device_info *devinfo = p->devinfo;
 
-   if (dest.file != BRW_ARCHITECTURE_REGISTER_FILE &&
-       dest.file != BRW_MESSAGE_REGISTER_FILE)
+   if (dest.file == BRW_MESSAGE_REGISTER_FILE)
+      assert((dest.nr & ~BRW_MRF_COMPR4) < BRW_MAX_MRF(devinfo->gen));
+   else if (dest.file != BRW_ARCHITECTURE_REGISTER_FILE)
       assert(dest.nr < 128);
 
    gen7_convert_mrf_to_grf(p, &dest);
 
-   brw_inst_set_dst_reg_file(brw, inst, dest.file);
-   brw_inst_set_dst_reg_type(brw, inst, brw_reg_type_to_hw_type(brw, dest.type,
-                                                                dest.file));
-   brw_inst_set_dst_address_mode(brw, inst, dest.address_mode);
+   brw_inst_set_dst_reg_file(devinfo, inst, dest.file);
+   brw_inst_set_dst_reg_type(devinfo, inst,
+                             brw_reg_type_to_hw_type(devinfo, dest.type,
+                                                     dest.file));
+   brw_inst_set_dst_address_mode(devinfo, inst, dest.address_mode);
 
    if (dest.address_mode == BRW_ADDRESS_DIRECT) {
-      brw_inst_set_dst_da_reg_nr(brw, inst, dest.nr);
+      brw_inst_set_dst_da_reg_nr(devinfo, inst, dest.nr);
 
-      if (brw_inst_access_mode(brw, inst) == BRW_ALIGN_1) {
-         brw_inst_set_dst_da1_subreg_nr(brw, inst, dest.subnr);
+      if (brw_inst_access_mode(devinfo, inst) == BRW_ALIGN_1) {
+         brw_inst_set_dst_da1_subreg_nr(devinfo, inst, dest.subnr);
         if (dest.hstride == BRW_HORIZONTAL_STRIDE_0)
            dest.hstride = BRW_HORIZONTAL_STRIDE_1;
-         brw_inst_set_dst_hstride(brw, inst, dest.hstride);
+         brw_inst_set_dst_hstride(devinfo, inst, dest.hstride);
       } else {
-         brw_inst_set_dst_da16_subreg_nr(brw, inst, dest.subnr / 16);
-         brw_inst_set_da16_writemask(brw, inst, dest.dw1.bits.writemask);
+         brw_inst_set_dst_da16_subreg_nr(devinfo, inst, dest.subnr / 16);
+         brw_inst_set_da16_writemask(devinfo, inst, dest.writemask);
          if (dest.file == BRW_GENERAL_REGISTER_FILE ||
              dest.file == BRW_MESSAGE_REGISTER_FILE) {
-            assert(dest.dw1.bits.writemask != 0);
+            assert(dest.writemask != 0);
          }
         /* From the Ivybridge PRM, Vol 4, Part 3, Section 5.2.4.1:
          *    Although Dst.HorzStride is a don't care for Align16, HW needs
          *    this to be programmed as "01".
          */
-         brw_inst_set_dst_hstride(brw, inst, 1);
+         brw_inst_set_dst_hstride(devinfo, inst, 1);
       }
    } else {
-      brw_inst_set_dst_ia_subreg_nr(brw, inst, dest.subnr);
+      brw_inst_set_dst_ia_subreg_nr(devinfo, inst, dest.subnr);
 
       /* These are different sizes in align1 vs align16:
        */
-      if (brw_inst_access_mode(brw, inst) == BRW_ALIGN_1) {
-         brw_inst_set_dst_ia1_addr_imm(brw, inst,
-                                       dest.dw1.bits.indirect_offset);
+      if (brw_inst_access_mode(devinfo, inst) == BRW_ALIGN_1) {
+         brw_inst_set_dst_ia1_addr_imm(devinfo, inst,
+                                       dest.indirect_offset);
         if (dest.hstride == BRW_HORIZONTAL_STRIDE_0)
            dest.hstride = BRW_HORIZONTAL_STRIDE_1;
-         brw_inst_set_dst_hstride(brw, inst, dest.hstride);
+         brw_inst_set_dst_hstride(devinfo, inst, dest.hstride);
       } else {
-         brw_inst_set_dst_ia16_addr_imm(brw, inst,
-                                        dest.dw1.bits.indirect_offset);
+         brw_inst_set_dst_ia16_addr_imm(devinfo, inst,
+                                        dest.indirect_offset);
         /* even ignored in da16, still need to set as '01' */
-         brw_inst_set_dst_hstride(brw, inst, 1);
+         brw_inst_set_dst_hstride(devinfo, inst, 1);
       }
    }
 
-   /* NEW: Set the execution size based on dest.width and
-    * inst->compression_control:
+   /* Generators should set a default exec_size of either 8 (SIMD4x2 or SIMD8)
+    * or 16 (SIMD16), as that's normally correct.  However, when dealing with
+    * small registers, we automatically reduce it to match the register size.
+    *
+    * In platforms that support fp64 we can emit instructions with a width of
+    * 4 that need two SIMD8 registers and an exec_size of 8 or 16. In these
+    * cases we need to make sure that these instructions have their exec sizes
+    * set properly when they are emitted and we can't rely on this code to fix
+    * it.
     */
-   guess_execution_size(p, inst, dest);
+   bool fix_exec_size;
+   if (devinfo->gen >= 6)
+      fix_exec_size = dest.width < BRW_EXECUTE_4;
+   else
+      fix_exec_size = dest.width < BRW_EXECUTE_8;
+
+   if (fix_exec_size)
+      brw_inst_set_exec_size(devinfo, inst, dest.width);
 }
 
 extern int reg_type_size[];
 
 static void
-validate_reg(const struct brw_context *brw, brw_inst *inst, struct brw_reg reg)
+validate_reg(const struct gen_device_info *devinfo,
+             brw_inst *inst, struct brw_reg reg)
 {
    const int hstride_for_reg[] = {0, 1, 2, 4};
    const int vstride_for_reg[] = {0, 1, 2, 4, 8, 16, 32};
    const int width_for_reg[] = {1, 2, 4, 8, 16};
-   const int execsize_for_reg[] = {1, 2, 4, 8, 16};
+   const int execsize_for_reg[] = {1, 2, 4, 8, 16, 32};
    int width, hstride, vstride, execsize;
 
    if (reg.file == BRW_IMMEDIATE_VALUE) {
@@ -238,8 +237,8 @@ validate_reg(const struct brw_context *brw, brw_inst *inst, struct brw_reg reg)
        * destination horiz stride has to be a word.
        */
       if (reg.type == BRW_REGISTER_TYPE_V) {
-         assert(hstride_for_reg[brw_inst_dst_hstride(brw, inst)] *
-                reg_type_size[brw_inst_dst_reg_type(brw, inst)] == 2);
+         assert(hstride_for_reg[brw_inst_dst_hstride(devinfo, inst)] *
+                reg_type_size[brw_inst_dst_reg_type(devinfo, inst)] == 2);
       }
 
       return;
@@ -249,22 +248,31 @@ validate_reg(const struct brw_context *brw, brw_inst *inst, struct brw_reg reg)
        reg.file == BRW_ARF_NULL)
       return;
 
-   assert(reg.hstride >= 0 && reg.hstride < Elements(hstride_for_reg));
+   /* From the IVB PRM Vol. 4, Pt. 3, Section 3.3.3.5:
+    *
+    *    "Swizzling is not allowed when an accumulator is used as an implicit
+    *    source or an explicit source in an instruction."
+    */
+   if (reg.file == BRW_ARCHITECTURE_REGISTER_FILE &&
+       reg.nr == BRW_ARF_ACCUMULATOR)
+      assert(reg.swizzle == BRW_SWIZZLE_XYZW);
+
+   assert(reg.hstride >= 0 && reg.hstride < ARRAY_SIZE(hstride_for_reg));
    hstride = hstride_for_reg[reg.hstride];
 
    if (reg.vstride == 0xf) {
       vstride = -1;
    } else {
-      assert(reg.vstride >= 0 && reg.vstride < Elements(vstride_for_reg));
+      assert(reg.vstride >= 0 && reg.vstride < ARRAY_SIZE(vstride_for_reg));
       vstride = vstride_for_reg[reg.vstride];
    }
 
-   assert(reg.width >= 0 && reg.width < Elements(width_for_reg));
+   assert(reg.width >= 0 && reg.width < ARRAY_SIZE(width_for_reg));
    width = width_for_reg[reg.width];
 
-   assert(brw_inst_exec_size(brw, inst) >= 0 &&
-          brw_inst_exec_size(brw, inst) < Elements(execsize_for_reg));
-   execsize = execsize_for_reg[brw_inst_exec_size(brw, inst)];
+   assert(brw_inst_exec_size(devinfo, inst) >= 0 &&
+          brw_inst_exec_size(devinfo, inst) < ARRAY_SIZE(execsize_for_reg));
+   execsize = execsize_for_reg[brw_inst_exec_size(devinfo, inst)];
 
    /* Restrictions from 3.3.10: Register Region Restrictions. */
    /* 3. */
@@ -310,17 +318,19 @@ is_compactable_immediate(unsigned imm)
 }
 
 void
-brw_set_src0(struct brw_compile *p, brw_inst *inst, struct brw_reg reg)
+brw_set_src0(struct brw_codegen *p, brw_inst *inst, struct brw_reg reg)
 {
-   struct brw_context *brw = p->brw;
+   const struct gen_device_info *devinfo = p->devinfo;
 
-   if (reg.file != BRW_ARCHITECTURE_REGISTER_FILE)
+   if (reg.file == BRW_MESSAGE_REGISTER_FILE)
+      assert((reg.nr & ~BRW_MRF_COMPR4) < BRW_MAX_MRF(devinfo->gen));
+   else if (reg.file != BRW_ARCHITECTURE_REGISTER_FILE)
       assert(reg.nr < 128);
 
    gen7_convert_mrf_to_grf(p, &reg);
 
-   if (brw->gen >= 6 && (brw_inst_opcode(brw, inst) == BRW_OPCODE_SEND ||
-                         brw_inst_opcode(brw, inst) == BRW_OPCODE_SENDC)) {
+   if (devinfo->gen >= 6 && (brw_inst_opcode(devinfo, inst) == BRW_OPCODE_SEND ||
+                             brw_inst_opcode(devinfo, inst) == BRW_OPCODE_SENDC)) {
       /* Any source modifiers or regions will be ignored, since this just
        * identifies the MRF/GRF to start reading the message contents from.
        * Check for some likely failures.
@@ -330,17 +340,21 @@ brw_set_src0(struct brw_compile *p, brw_inst *inst, struct brw_reg reg)
       assert(reg.address_mode == BRW_ADDRESS_DIRECT);
    }
 
-   validate_reg(brw, inst, reg);
+   validate_reg(devinfo, inst, reg);
 
-   brw_inst_set_src0_reg_file(brw, inst, reg.file);
-   brw_inst_set_src0_reg_type(brw, inst,
-                              brw_reg_type_to_hw_type(brw, reg.type, reg.file));
-   brw_inst_set_src0_abs(brw, inst, reg.abs);
-   brw_inst_set_src0_negate(brw, inst, reg.negate);
-   brw_inst_set_src0_address_mode(brw, inst, reg.address_mode);
+   brw_inst_set_src0_reg_file(devinfo, inst, reg.file);
+   brw_inst_set_src0_reg_type(devinfo, inst,
+                              brw_reg_type_to_hw_type(devinfo, reg.type, reg.file));
+   brw_inst_set_src0_abs(devinfo, inst, reg.abs);
+   brw_inst_set_src0_negate(devinfo, inst, reg.negate);
+   brw_inst_set_src0_address_mode(devinfo, inst, reg.address_mode);
 
    if (reg.file == BRW_IMMEDIATE_VALUE) {
-      brw_inst_set_imm_ud(brw, inst, reg.dw1.ud);
+      if (reg.type == BRW_REGISTER_TYPE_DF ||
+          brw_inst_opcode(devinfo, inst) == BRW_OPCODE_DIM)
+         brw_inst_set_imm_df(devinfo, inst, reg.df);
+      else
+         brw_inst_set_imm_ud(devinfo, inst, reg.ud);
 
       /* The Bspec's section titled "Non-present Operands" claims that if src0
        * is an immediate that src1's type must be the same as that of src0.
@@ -363,13 +377,20 @@ brw_set_src0(struct brw_compile *p, brw_inst *inst, struct brw_reg reg)
        * The GM45 instruction compaction tables do not contain mapped meanings
        * so it's not clear whether it has the restriction. We'll assume it was
        * lifted on SNB. (FINISHME: decode the GM45 tables and check.)
+       *
+       * Don't do any of this for 64-bit immediates, since the src1 fields
+       * overlap with the immediate and setting them would overwrite the
+       * immediate we set.
        */
-      brw_inst_set_src1_reg_file(brw, inst, BRW_ARCHITECTURE_REGISTER_FILE);
-      if (brw->gen < 6) {
-         brw_inst_set_src1_reg_type(brw, inst,
-                                    brw_inst_src0_reg_type(brw, inst));
-      } else {
-         brw_inst_set_src1_reg_type(brw, inst, BRW_HW_REG_TYPE_UD);
+      if (type_sz(reg.type) < 8) {
+         brw_inst_set_src1_reg_file(devinfo, inst,
+                                    BRW_ARCHITECTURE_REGISTER_FILE);
+         if (devinfo->gen < 6) {
+            brw_inst_set_src1_reg_type(devinfo, inst,
+                                       brw_inst_src0_reg_type(devinfo, inst));
+         } else {
+            brw_inst_set_src1_reg_type(devinfo, inst, BRW_HW_REG_TYPE_UD);
+         }
       }
 
       /* Compacted instructions only have 12-bits (plus 1 for the other 20)
@@ -383,97 +404,107 @@ brw_set_src0(struct brw_compile *p, brw_inst *inst, struct brw_reg reg)
        *
        * If we see a 0.0:F, change the type to VF so that it can be compacted.
        */
-      if (brw_inst_imm_ud(brw, inst) == 0x0 &&
-          brw_inst_src0_reg_type(brw, inst) == BRW_HW_REG_TYPE_F) {
-         brw_inst_set_src0_reg_type(brw, inst, BRW_HW_REG_IMM_TYPE_VF);
+      if (brw_inst_imm_ud(devinfo, inst) == 0x0 &&
+          brw_inst_src0_reg_type(devinfo, inst) == BRW_HW_REG_TYPE_F) {
+         brw_inst_set_src0_reg_type(devinfo, inst, BRW_HW_REG_IMM_TYPE_VF);
       }
 
       /* There are no mappings for dst:d | i:d, so if the immediate is suitable
        * set the types to :UD so the instruction can be compacted.
        */
-      if (is_compactable_immediate(brw_inst_imm_ud(brw, inst)) &&
-          brw_inst_cond_modifier(brw, inst) == BRW_CONDITIONAL_NONE &&
-          brw_inst_src0_reg_type(brw, inst) == BRW_HW_REG_TYPE_D &&
-          brw_inst_dst_reg_type(brw, inst) == BRW_HW_REG_TYPE_D) {
-         brw_inst_set_src0_reg_type(brw, inst, BRW_HW_REG_TYPE_UD);
-         brw_inst_set_dst_reg_type(brw, inst, BRW_HW_REG_TYPE_UD);
+      if (is_compactable_immediate(brw_inst_imm_ud(devinfo, inst)) &&
+          brw_inst_cond_modifier(devinfo, inst) == BRW_CONDITIONAL_NONE &&
+          brw_inst_src0_reg_type(devinfo, inst) == BRW_HW_REG_TYPE_D &&
+          brw_inst_dst_reg_type(devinfo, inst) == BRW_HW_REG_TYPE_D) {
+         brw_inst_set_src0_reg_type(devinfo, inst, BRW_HW_REG_TYPE_UD);
+         brw_inst_set_dst_reg_type(devinfo, inst, BRW_HW_REG_TYPE_UD);
       }
    } else {
       if (reg.address_mode == BRW_ADDRESS_DIRECT) {
-         brw_inst_set_src0_da_reg_nr(brw, inst, reg.nr);
-         if (brw_inst_access_mode(brw, inst) == BRW_ALIGN_1) {
-             brw_inst_set_src0_da1_subreg_nr(brw, inst, reg.subnr);
+         brw_inst_set_src0_da_reg_nr(devinfo, inst, reg.nr);
+         if (brw_inst_access_mode(devinfo, inst) == BRW_ALIGN_1) {
+             brw_inst_set_src0_da1_subreg_nr(devinfo, inst, reg.subnr);
         } else {
-            brw_inst_set_src0_da16_subreg_nr(brw, inst, reg.subnr / 16);
+            brw_inst_set_src0_da16_subreg_nr(devinfo, inst, reg.subnr / 16);
         }
       } else {
-         brw_inst_set_src0_ia_subreg_nr(brw, inst, reg.subnr);
+         brw_inst_set_src0_ia_subreg_nr(devinfo, inst, reg.subnr);
 
-         if (brw_inst_access_mode(brw, inst) == BRW_ALIGN_1) {
-            brw_inst_set_src0_ia1_addr_imm(brw, inst, reg.dw1.bits.indirect_offset);
+         if (brw_inst_access_mode(devinfo, inst) == BRW_ALIGN_1) {
+            brw_inst_set_src0_ia1_addr_imm(devinfo, inst, reg.indirect_offset);
         } else {
-            brw_inst_set_src0_ia_subreg_nr(brw, inst, reg.dw1.bits.indirect_offset);
+            brw_inst_set_src0_ia16_addr_imm(devinfo, inst, reg.indirect_offset);
         }
       }
 
-      if (brw_inst_access_mode(brw, inst) == BRW_ALIGN_1) {
+      if (brw_inst_access_mode(devinfo, inst) == BRW_ALIGN_1) {
         if (reg.width == BRW_WIDTH_1 &&
-             brw_inst_exec_size(brw, inst) == BRW_EXECUTE_1) {
-            brw_inst_set_src0_hstride(brw, inst, BRW_HORIZONTAL_STRIDE_0);
-            brw_inst_set_src0_width(brw, inst, BRW_WIDTH_1);
-            brw_inst_set_src0_vstride(brw, inst, BRW_VERTICAL_STRIDE_0);
+             brw_inst_exec_size(devinfo, inst) == BRW_EXECUTE_1) {
+            brw_inst_set_src0_hstride(devinfo, inst, BRW_HORIZONTAL_STRIDE_0);
+            brw_inst_set_src0_width(devinfo, inst, BRW_WIDTH_1);
+            brw_inst_set_src0_vstride(devinfo, inst, BRW_VERTICAL_STRIDE_0);
         } else {
-            brw_inst_set_src0_hstride(brw, inst, reg.hstride);
-            brw_inst_set_src0_width(brw, inst, reg.width);
-            brw_inst_set_src0_vstride(brw, inst, reg.vstride);
+            brw_inst_set_src0_hstride(devinfo, inst, reg.hstride);
+            brw_inst_set_src0_width(devinfo, inst, reg.width);
+            brw_inst_set_src0_vstride(devinfo, inst, reg.vstride);
         }
       } else {
-         brw_inst_set_src0_da16_swiz_x(brw, inst,
-            BRW_GET_SWZ(reg.dw1.bits.swizzle, BRW_CHANNEL_X));
-         brw_inst_set_src0_da16_swiz_y(brw, inst,
-            BRW_GET_SWZ(reg.dw1.bits.swizzle, BRW_CHANNEL_Y));
-         brw_inst_set_src0_da16_swiz_z(brw, inst,
-            BRW_GET_SWZ(reg.dw1.bits.swizzle, BRW_CHANNEL_Z));
-         brw_inst_set_src0_da16_swiz_w(brw, inst,
-            BRW_GET_SWZ(reg.dw1.bits.swizzle, BRW_CHANNEL_W));
+         brw_inst_set_src0_da16_swiz_x(devinfo, inst,
+            BRW_GET_SWZ(reg.swizzle, BRW_CHANNEL_X));
+         brw_inst_set_src0_da16_swiz_y(devinfo, inst,
+            BRW_GET_SWZ(reg.swizzle, BRW_CHANNEL_Y));
+         brw_inst_set_src0_da16_swiz_z(devinfo, inst,
+            BRW_GET_SWZ(reg.swizzle, BRW_CHANNEL_Z));
+         brw_inst_set_src0_da16_swiz_w(devinfo, inst,
+            BRW_GET_SWZ(reg.swizzle, BRW_CHANNEL_W));
 
         /* This is an oddity of the fact we're using the same
          * descriptions for registers in align_16 as align_1:
          */
         if (reg.vstride == BRW_VERTICAL_STRIDE_8)
-            brw_inst_set_src0_vstride(brw, inst, BRW_VERTICAL_STRIDE_4);
+            brw_inst_set_src0_vstride(devinfo, inst, BRW_VERTICAL_STRIDE_4);
         else
-            brw_inst_set_src0_vstride(brw, inst, reg.vstride);
+            brw_inst_set_src0_vstride(devinfo, inst, reg.vstride);
       }
    }
 }
 
 
 void
-brw_set_src1(struct brw_compile *p, brw_inst *inst, struct brw_reg reg)
+brw_set_src1(struct brw_codegen *p, brw_inst *inst, struct brw_reg reg)
 {
-   const struct brw_context *brw = p->brw;
+   const struct gen_device_info *devinfo = p->devinfo;
 
    if (reg.file != BRW_ARCHITECTURE_REGISTER_FILE)
       assert(reg.nr < 128);
 
+   /* From the IVB PRM Vol. 4, Pt. 3, Section 3.3.3.5:
+    *
+    *    "Accumulator registers may be accessed explicitly as src0
+    *    operands only."
+    */
+   assert(reg.file != BRW_ARCHITECTURE_REGISTER_FILE ||
+          reg.nr != BRW_ARF_ACCUMULATOR);
+
    gen7_convert_mrf_to_grf(p, &reg);
    assert(reg.file != BRW_MESSAGE_REGISTER_FILE);
 
-   validate_reg(brw, inst, reg);
+   validate_reg(devinfo, inst, reg);
 
-   brw_inst_set_src1_reg_file(brw, inst, reg.file);
-   brw_inst_set_src1_reg_type(brw, inst,
-                              brw_reg_type_to_hw_type(brw, reg.type, reg.file));
-   brw_inst_set_src1_abs(brw, inst, reg.abs);
-   brw_inst_set_src1_negate(brw, inst, reg.negate);
+   brw_inst_set_src1_reg_file(devinfo, inst, reg.file);
+   brw_inst_set_src1_reg_type(devinfo, inst,
+                              brw_reg_type_to_hw_type(devinfo, reg.type, reg.file));
+   brw_inst_set_src1_abs(devinfo, inst, reg.abs);
+   brw_inst_set_src1_negate(devinfo, inst, reg.negate);
 
    /* Only src1 can be immediate in two-argument instructions.
     */
-   assert(brw_inst_src0_reg_file(brw, inst) != BRW_IMMEDIATE_VALUE);
+   assert(brw_inst_src0_reg_file(devinfo, inst) != BRW_IMMEDIATE_VALUE);
 
    if (reg.file == BRW_IMMEDIATE_VALUE) {
-      brw_inst_set_imm_ud(brw, inst, reg.dw1.ud);
+      /* two-argument instructions can only use 32-bit immediates */
+      assert(type_sz(reg.type) < 8);
+      brw_inst_set_imm_ud(devinfo, inst, reg.ud);
    } else {
       /* This is a hardware restriction, which may or may not be lifted
        * in the future:
@@ -481,41 +512,41 @@ brw_set_src1(struct brw_compile *p, brw_inst *inst, struct brw_reg reg)
       assert (reg.address_mode == BRW_ADDRESS_DIRECT);
       /* assert (reg.file == BRW_GENERAL_REGISTER_FILE); */
 
-      brw_inst_set_src1_da_reg_nr(brw, inst, reg.nr);
-      if (brw_inst_access_mode(brw, inst) == BRW_ALIGN_1) {
-         brw_inst_set_src1_da1_subreg_nr(brw, inst, reg.subnr);
+      brw_inst_set_src1_da_reg_nr(devinfo, inst, reg.nr);
+      if (brw_inst_access_mode(devinfo, inst) == BRW_ALIGN_1) {
+         brw_inst_set_src1_da1_subreg_nr(devinfo, inst, reg.subnr);
       } else {
-         brw_inst_set_src1_da16_subreg_nr(brw, inst, reg.subnr / 16);
+         brw_inst_set_src1_da16_subreg_nr(devinfo, inst, reg.subnr / 16);
       }
 
-      if (brw_inst_access_mode(brw, inst) == BRW_ALIGN_1) {
+      if (brw_inst_access_mode(devinfo, inst) == BRW_ALIGN_1) {
         if (reg.width == BRW_WIDTH_1 &&
-             brw_inst_exec_size(brw, inst) == BRW_EXECUTE_1) {
-            brw_inst_set_src1_hstride(brw, inst, BRW_HORIZONTAL_STRIDE_0);
-            brw_inst_set_src1_width(brw, inst, BRW_WIDTH_1);
-            brw_inst_set_src1_vstride(brw, inst, BRW_VERTICAL_STRIDE_0);
+             brw_inst_exec_size(devinfo, inst) == BRW_EXECUTE_1) {
+            brw_inst_set_src1_hstride(devinfo, inst, BRW_HORIZONTAL_STRIDE_0);
+            brw_inst_set_src1_width(devinfo, inst, BRW_WIDTH_1);
+            brw_inst_set_src1_vstride(devinfo, inst, BRW_VERTICAL_STRIDE_0);
         } else {
-            brw_inst_set_src1_hstride(brw, inst, reg.hstride);
-            brw_inst_set_src1_width(brw, inst, reg.width);
-            brw_inst_set_src1_vstride(brw, inst, reg.vstride);
+            brw_inst_set_src1_hstride(devinfo, inst, reg.hstride);
+            brw_inst_set_src1_width(devinfo, inst, reg.width);
+            brw_inst_set_src1_vstride(devinfo, inst, reg.vstride);
         }
       } else {
-         brw_inst_set_src1_da16_swiz_x(brw, inst,
-            BRW_GET_SWZ(reg.dw1.bits.swizzle, BRW_CHANNEL_X));
-         brw_inst_set_src1_da16_swiz_y(brw, inst,
-            BRW_GET_SWZ(reg.dw1.bits.swizzle, BRW_CHANNEL_Y));
-         brw_inst_set_src1_da16_swiz_z(brw, inst,
-            BRW_GET_SWZ(reg.dw1.bits.swizzle, BRW_CHANNEL_Z));
-         brw_inst_set_src1_da16_swiz_w(brw, inst,
-            BRW_GET_SWZ(reg.dw1.bits.swizzle, BRW_CHANNEL_W));
+         brw_inst_set_src1_da16_swiz_x(devinfo, inst,
+            BRW_GET_SWZ(reg.swizzle, BRW_CHANNEL_X));
+         brw_inst_set_src1_da16_swiz_y(devinfo, inst,
+            BRW_GET_SWZ(reg.swizzle, BRW_CHANNEL_Y));
+         brw_inst_set_src1_da16_swiz_z(devinfo, inst,
+            BRW_GET_SWZ(reg.swizzle, BRW_CHANNEL_Z));
+         brw_inst_set_src1_da16_swiz_w(devinfo, inst,
+            BRW_GET_SWZ(reg.swizzle, BRW_CHANNEL_W));
 
         /* This is an oddity of the fact we're using the same
          * descriptions for registers in align_16 as align_1:
          */
         if (reg.vstride == BRW_VERTICAL_STRIDE_8)
-            brw_inst_set_src1_vstride(brw, inst, BRW_VERTICAL_STRIDE_4);
+            brw_inst_set_src1_vstride(devinfo, inst, BRW_VERTICAL_STRIDE_4);
         else
-            brw_inst_set_src1_vstride(brw, inst, reg.vstride);
+            brw_inst_set_src1_vstride(devinfo, inst, reg.vstride);
       }
    }
 }
@@ -528,8 +559,8 @@ brw_set_src1(struct brw_compile *p, brw_inst *inst, struct brw_reg reg)
  *       \b before filling out any message-specific data.  Callers can
  *       choose not to fill in irrelevant bits; they will be zero.
  */
-static void
-brw_set_message_descriptor(struct brw_compile *p,
+void
+brw_set_message_descriptor(struct brw_codegen *p,
                           brw_inst *inst,
                           enum brw_message_target sfid,
                           unsigned msg_length,
@@ -537,7 +568,7 @@ brw_set_message_descriptor(struct brw_compile *p,
                           bool header_present,
                           bool end_of_thread)
 {
-   struct brw_context *brw = p->brw;
+   const struct gen_device_info *devinfo = p->devinfo;
 
    brw_set_src1(p, inst, brw_imm_d(0));
 
@@ -548,28 +579,28 @@ brw_set_message_descriptor(struct brw_compile *p,
     * since they go on the later SEND/SENDC instead and if set here would
     * instead clobber the conditionalmod bits.
     */
-   unsigned opcode = brw_inst_opcode(brw, inst);
+   unsigned opcode = brw_inst_opcode(devinfo, inst);
    if (opcode == BRW_OPCODE_SEND || opcode == BRW_OPCODE_SENDC) {
-      brw_inst_set_sfid(brw, inst, sfid);
+      brw_inst_set_sfid(devinfo, inst, sfid);
    }
 
-   brw_inst_set_mlen(brw, inst, msg_length);
-   brw_inst_set_rlen(brw, inst, response_length);
-   brw_inst_set_eot(brw, inst, end_of_thread);
+   brw_inst_set_mlen(devinfo, inst, msg_length);
+   brw_inst_set_rlen(devinfo, inst, response_length);
+   brw_inst_set_eot(devinfo, inst, end_of_thread);
 
-   if (brw->gen >= 5) {
-      brw_inst_set_header_present(brw, inst, header_present);
+   if (devinfo->gen >= 5) {
+      brw_inst_set_header_present(devinfo, inst, header_present);
    }
 }
 
-static void brw_set_math_message( struct brw_compile *p,
+static void brw_set_math_message( struct brw_codegen *p,
                                  brw_inst *inst,
                                  unsigned function,
                                  unsigned integer_type,
                                  bool low_precision,
                                  unsigned dataType )
 {
-   struct brw_context *brw = p->brw;
+   const struct gen_device_info *devinfo = p->devinfo;
    unsigned msg_length;
    unsigned response_length;
 
@@ -600,35 +631,35 @@ static void brw_set_math_message( struct brw_compile *p,
 
    brw_set_message_descriptor(p, inst, BRW_SFID_MATH,
                              msg_length, response_length, false, false);
-   brw_inst_set_math_msg_function(brw, inst, function);
-   brw_inst_set_math_msg_signed_int(brw, inst, integer_type);
-   brw_inst_set_math_msg_precision(brw, inst, low_precision);
-   brw_inst_set_math_msg_saturate(brw, inst, brw_inst_saturate(brw, inst));
-   brw_inst_set_math_msg_data_type(brw, inst, dataType);
-   brw_inst_set_saturate(brw, inst, 0);
+   brw_inst_set_math_msg_function(devinfo, inst, function);
+   brw_inst_set_math_msg_signed_int(devinfo, inst, integer_type);
+   brw_inst_set_math_msg_precision(devinfo, inst, low_precision);
+   brw_inst_set_math_msg_saturate(devinfo, inst, brw_inst_saturate(devinfo, inst));
+   brw_inst_set_math_msg_data_type(devinfo, inst, dataType);
+   brw_inst_set_saturate(devinfo, inst, 0);
 }
 
 
-static void brw_set_ff_sync_message(struct brw_compile *p,
+static void brw_set_ff_sync_message(struct brw_codegen *p,
                                    brw_inst *insn,
                                    bool allocate,
                                    unsigned response_length,
                                    bool end_of_thread)
 {
-   const struct brw_context *brw = p->brw;
+   const struct gen_device_info *devinfo = p->devinfo;
 
    brw_set_message_descriptor(p, insn, BRW_SFID_URB,
                              1, response_length, true, end_of_thread);
-   brw_inst_set_urb_opcode(brw, insn, 1); /* FF_SYNC */
-   brw_inst_set_urb_allocate(brw, insn, allocate);
+   brw_inst_set_urb_opcode(devinfo, insn, 1); /* FF_SYNC */
+   brw_inst_set_urb_allocate(devinfo, insn, allocate);
    /* The following fields are not used by FF_SYNC: */
-   brw_inst_set_urb_global_offset(brw, insn, 0);
-   brw_inst_set_urb_swizzle_control(brw, insn, 0);
-   brw_inst_set_urb_used(brw, insn, 0);
-   brw_inst_set_urb_complete(brw, insn, 0);
+   brw_inst_set_urb_global_offset(devinfo, insn, 0);
+   brw_inst_set_urb_swizzle_control(devinfo, insn, 0);
+   brw_inst_set_urb_used(devinfo, insn, 0);
+   brw_inst_set_urb_complete(devinfo, insn, 0);
 }
 
-static void brw_set_urb_message( struct brw_compile *p,
+static void brw_set_urb_message( struct brw_codegen *p,
                                 brw_inst *insn,
                                  enum brw_urb_write_flags flags,
                                 unsigned msg_length,
@@ -636,11 +667,11 @@ static void brw_set_urb_message( struct brw_compile *p,
                                 unsigned offset,
                                 unsigned swizzle_control )
 {
-   struct brw_context *brw = p->brw;
+   const struct gen_device_info *devinfo = p->devinfo;
 
-   assert(brw->gen < 7 || swizzle_control != BRW_URB_SWIZZLE_TRANSPOSE);
-   assert(brw->gen < 7 || !(flags & BRW_URB_WRITE_ALLOCATE));
-   assert(brw->gen >= 7 || !(flags & BRW_URB_WRITE_PER_SLOT_OFFSET));
+   assert(devinfo->gen < 7 || swizzle_control != BRW_URB_SWIZZLE_TRANSPOSE);
+   assert(devinfo->gen < 7 || !(flags & BRW_URB_WRITE_ALLOCATE));
+   assert(devinfo->gen >= 7 || !(flags & BRW_URB_WRITE_PER_SLOT_OFFSET));
 
    brw_set_message_descriptor(p, insn, BRW_SFID_URB,
                              msg_length, response_length, true,
@@ -648,29 +679,29 @@ static void brw_set_urb_message( struct brw_compile *p,
 
    if (flags & BRW_URB_WRITE_OWORD) {
       assert(msg_length == 2); /* header + one OWORD of data */
-      brw_inst_set_urb_opcode(brw, insn, BRW_URB_OPCODE_WRITE_OWORD);
+      brw_inst_set_urb_opcode(devinfo, insn, BRW_URB_OPCODE_WRITE_OWORD);
    } else {
-      brw_inst_set_urb_opcode(brw, insn, BRW_URB_OPCODE_WRITE_HWORD);
+      brw_inst_set_urb_opcode(devinfo, insn, BRW_URB_OPCODE_WRITE_HWORD);
    }
 
-   brw_inst_set_urb_global_offset(brw, insn, offset);
-   brw_inst_set_urb_swizzle_control(brw, insn, swizzle_control);
+   brw_inst_set_urb_global_offset(devinfo, insn, offset);
+   brw_inst_set_urb_swizzle_control(devinfo, insn, swizzle_control);
 
-   if (brw->gen < 8) {
-      brw_inst_set_urb_complete(brw, insn, !!(flags & BRW_URB_WRITE_COMPLETE));
+   if (devinfo->gen < 8) {
+      brw_inst_set_urb_complete(devinfo, insn, !!(flags & BRW_URB_WRITE_COMPLETE));
    }
 
-   if (brw->gen < 7) {
-      brw_inst_set_urb_allocate(brw, insn, !!(flags & BRW_URB_WRITE_ALLOCATE));
-      brw_inst_set_urb_used(brw, insn, !(flags & BRW_URB_WRITE_UNUSED));
+   if (devinfo->gen < 7) {
+      brw_inst_set_urb_allocate(devinfo, insn, !!(flags & BRW_URB_WRITE_ALLOCATE));
+      brw_inst_set_urb_used(devinfo, insn, !(flags & BRW_URB_WRITE_UNUSED));
    } else {
-      brw_inst_set_urb_per_slot_offset(brw, insn,
+      brw_inst_set_urb_per_slot_offset(devinfo, insn,
          !!(flags & BRW_URB_WRITE_PER_SLOT_OFFSET));
    }
 }
 
 void
-brw_set_dp_write_message(struct brw_compile *p,
+brw_set_dp_write_message(struct brw_codegen *p,
                         brw_inst *insn,
                         unsigned binding_table_index,
                         unsigned msg_control,
@@ -682,16 +713,16 @@ brw_set_dp_write_message(struct brw_compile *p,
                         unsigned end_of_thread,
                         unsigned send_commit_msg)
 {
-   struct brw_context *brw = p->brw;
+   const struct gen_device_info *devinfo = p->devinfo;
    unsigned sfid;
 
-   if (brw->gen >= 7) {
+   if (devinfo->gen >= 7) {
       /* Use the Render Cache for RT writes; otherwise use the Data Cache */
       if (msg_type == GEN6_DATAPORT_WRITE_MESSAGE_RENDER_TARGET_WRITE)
         sfid = GEN6_SFID_DATAPORT_RENDER_CACHE;
       else
         sfid = GEN7_SFID_DATAPORT_DATA_CACHE;
-   } else if (brw->gen == 6) {
+   } else if (devinfo->gen == 6) {
       /* Use the render cache for all write messages. */
       sfid = GEN6_SFID_DATAPORT_RENDER_CACHE;
    } else {
@@ -701,17 +732,17 @@ brw_set_dp_write_message(struct brw_compile *p,
    brw_set_message_descriptor(p, insn, sfid, msg_length, response_length,
                              header_present, end_of_thread);
 
-   brw_inst_set_binding_table_index(brw, insn, binding_table_index);
-   brw_inst_set_dp_write_msg_type(brw, insn, msg_type);
-   brw_inst_set_dp_write_msg_control(brw, insn, msg_control);
-   brw_inst_set_rt_last(brw, insn, last_render_target);
-   if (brw->gen < 7) {
-      brw_inst_set_dp_write_commit(brw, insn, send_commit_msg);
+   brw_inst_set_binding_table_index(devinfo, insn, binding_table_index);
+   brw_inst_set_dp_write_msg_type(devinfo, insn, msg_type);
+   brw_inst_set_dp_write_msg_control(devinfo, insn, msg_control);
+   brw_inst_set_rt_last(devinfo, insn, last_render_target);
+   if (devinfo->gen < 7) {
+      brw_inst_set_dp_write_commit(devinfo, insn, send_commit_msg);
    }
 }
 
 void
-brw_set_dp_read_message(struct brw_compile *p,
+brw_set_dp_read_message(struct brw_codegen *p,
                        brw_inst *insn,
                        unsigned binding_table_index,
                        unsigned msg_control,
@@ -721,12 +752,20 @@ brw_set_dp_read_message(struct brw_compile *p,
                         bool header_present,
                        unsigned response_length)
 {
-   struct brw_context *brw = p->brw;
+   const struct gen_device_info *devinfo = p->devinfo;
    unsigned sfid;
 
-   if (brw->gen >= 7) {
-      sfid = GEN7_SFID_DATAPORT_DATA_CACHE;
-   } else if (brw->gen == 6) {
+   if (devinfo->gen >= 7) {
+      if (target_cache == BRW_DATAPORT_READ_TARGET_RENDER_CACHE)
+         sfid = GEN6_SFID_DATAPORT_RENDER_CACHE;
+      else if (target_cache == BRW_DATAPORT_READ_TARGET_DATA_CACHE)
+         sfid = GEN7_SFID_DATAPORT_DATA_CACHE;
+      else if (target_cache == BRW_DATAPORT_READ_TARGET_SAMPLER_CACHE)
+         sfid = GEN6_SFID_DATAPORT_SAMPLER_CACHE;
+      else
+         unreachable("Invalid target cache");
+
+   } else if (devinfo->gen == 6) {
       if (target_cache == BRW_DATAPORT_READ_TARGET_RENDER_CACHE)
         sfid = GEN6_SFID_DATAPORT_RENDER_CACHE;
       else
@@ -738,15 +777,15 @@ brw_set_dp_read_message(struct brw_compile *p,
    brw_set_message_descriptor(p, insn, sfid, msg_length, response_length,
                              header_present, false);
 
-   brw_inst_set_binding_table_index(brw, insn, binding_table_index);
-   brw_inst_set_dp_read_msg_type(brw, insn, msg_type);
-   brw_inst_set_dp_read_msg_control(brw, insn, msg_control);
-   if (brw->gen < 6)
-      brw_inst_set_dp_read_target_cache(brw, insn, target_cache);
+   brw_inst_set_binding_table_index(devinfo, insn, binding_table_index);
+   brw_inst_set_dp_read_msg_type(devinfo, insn, msg_type);
+   brw_inst_set_dp_read_msg_control(devinfo, insn, msg_control);
+   if (devinfo->gen < 6)
+      brw_inst_set_dp_read_target_cache(devinfo, insn, target_cache);
 }
 
 void
-brw_set_sampler_message(struct brw_compile *p,
+brw_set_sampler_message(struct brw_codegen *p,
                         brw_inst *inst,
                         unsigned binding_table_index,
                         unsigned sampler,
@@ -757,38 +796,23 @@ brw_set_sampler_message(struct brw_compile *p,
                         unsigned simd_mode,
                         unsigned return_format)
 {
-   struct brw_context *brw = p->brw;
+   const struct gen_device_info *devinfo = p->devinfo;
 
    brw_set_message_descriptor(p, inst, BRW_SFID_SAMPLER, msg_length,
                              response_length, header_present, false);
 
-   brw_inst_set_binding_table_index(brw, inst, binding_table_index);
-   brw_inst_set_sampler(brw, inst, sampler);
-   brw_inst_set_sampler_msg_type(brw, inst, msg_type);
-   if (brw->gen >= 5) {
-      brw_inst_set_sampler_simd_mode(brw, inst, simd_mode);
-   } else if (brw->gen == 4 && !brw->is_g4x) {
-      brw_inst_set_sampler_return_format(brw, inst, return_format);
+   brw_inst_set_binding_table_index(devinfo, inst, binding_table_index);
+   brw_inst_set_sampler(devinfo, inst, sampler);
+   brw_inst_set_sampler_msg_type(devinfo, inst, msg_type);
+   if (devinfo->gen >= 5) {
+      brw_inst_set_sampler_simd_mode(devinfo, inst, simd_mode);
+   } else if (devinfo->gen == 4 && !devinfo->is_g4x) {
+      brw_inst_set_sampler_return_format(devinfo, inst, return_format);
    }
 }
 
-void brw_set_indirect_send_descriptor(struct brw_compile *p,
-                                      brw_inst *insn,
-                                      unsigned sfid,
-                                      struct brw_reg descriptor)
-{
-   /* Only a0.0 may be used as SEND's descriptor operand. */
-   assert(descriptor.file == BRW_ARCHITECTURE_REGISTER_FILE);
-   assert(descriptor.type == BRW_REGISTER_TYPE_UD);
-   assert(descriptor.nr == BRW_ARF_ADDRESS);
-   assert(descriptor.subnr == 0);
-
-   brw_set_message_descriptor(p, insn, sfid, 0, 0, false, false);
-   brw_set_src1(p, insn, descriptor);
-}
-
 static void
-gen7_set_dp_scratch_message(struct brw_compile *p,
+gen7_set_dp_scratch_message(struct brw_codegen *p,
                             brw_inst *inst,
                             bool write,
                             bool dword,
@@ -799,24 +823,27 @@ gen7_set_dp_scratch_message(struct brw_compile *p,
                             unsigned rlen,
                             bool header_present)
 {
-   const struct brw_context *brw = p->brw;
+   const struct gen_device_info *devinfo = p->devinfo;
    assert(num_regs == 1 || num_regs == 2 || num_regs == 4 ||
-          (brw->gen >= 8 && num_regs == 8));
+          (devinfo->gen >= 8 && num_regs == 8));
+   const unsigned block_size = (devinfo->gen >= 8 ? _mesa_logbase2(num_regs) :
+                                num_regs - 1);
+
    brw_set_message_descriptor(p, inst, GEN7_SFID_DATAPORT_DATA_CACHE,
                               mlen, rlen, header_present, false);
-   brw_inst_set_dp_category(brw, inst, 1); /* Scratch Block Read/Write msgs */
-   brw_inst_set_scratch_read_write(brw, inst, write);
-   brw_inst_set_scratch_type(brw, inst, dword);
-   brw_inst_set_scratch_invalidate_after_read(brw, inst, invalidate_after_read);
-   brw_inst_set_scratch_block_size(brw, inst, ffs(num_regs) - 1);
-   brw_inst_set_scratch_addr_offset(brw, inst, addr_offset);
+   brw_inst_set_dp_category(devinfo, inst, 1); /* Scratch Block Read/Write msgs */
+   brw_inst_set_scratch_read_write(devinfo, inst, write);
+   brw_inst_set_scratch_type(devinfo, inst, dword);
+   brw_inst_set_scratch_invalidate_after_read(devinfo, inst, invalidate_after_read);
+   brw_inst_set_scratch_block_size(devinfo, inst, block_size);
+   brw_inst_set_scratch_addr_offset(devinfo, inst, addr_offset);
 }
 
 #define next_insn brw_next_insn
 brw_inst *
-brw_next_insn(struct brw_compile *p, unsigned opcode)
+brw_next_insn(struct brw_codegen *p, unsigned opcode)
 {
-   const struct brw_context *brw = p->brw;
+   const struct gen_device_info *devinfo = p->devinfo;
    brw_inst *insn;
 
    if (p->nr_insn + 1 > p->store_size) {
@@ -828,12 +855,12 @@ brw_next_insn(struct brw_compile *p, unsigned opcode)
    insn = &p->store[p->nr_insn++];
    memcpy(insn, p->current, sizeof(*insn));
 
-   brw_inst_set_opcode(brw, insn, opcode);
+   brw_inst_set_opcode(devinfo, insn, opcode);
    return insn;
 }
 
 static brw_inst *
-brw_alu1(struct brw_compile *p, unsigned opcode,
+brw_alu1(struct brw_codegen *p, unsigned opcode,
          struct brw_reg dest, struct brw_reg src)
 {
    brw_inst *insn = next_insn(p, opcode);
@@ -843,9 +870,13 @@ brw_alu1(struct brw_compile *p, unsigned opcode,
 }
 
 static brw_inst *
-brw_alu2(struct brw_compile *p, unsigned opcode,
+brw_alu2(struct brw_codegen *p, unsigned opcode,
          struct brw_reg dest, struct brw_reg src0, struct brw_reg src1)
 {
+   /* 64-bit immediates are only supported on 1-src instructions */
+   assert(src0.file != BRW_IMMEDIATE_VALUE || type_sz(src0.type) <= 4);
+   assert(src1.file != BRW_IMMEDIATE_VALUE || type_sz(src1.type) <= 4);
+
    brw_inst *insn = next_insn(p, opcode);
    brw_set_dest(p, insn, dest);
    brw_set_src0(p, insn, src0);
@@ -856,75 +887,74 @@ brw_alu2(struct brw_compile *p, unsigned opcode,
 static int
 get_3src_subreg_nr(struct brw_reg reg)
 {
-   if (reg.vstride == BRW_VERTICAL_STRIDE_0) {
-      assert(brw_is_single_value_swizzle(reg.dw1.bits.swizzle));
-      return reg.subnr / 4 + BRW_GET_SWZ(reg.dw1.bits.swizzle, 0);
-   } else {
-      return reg.subnr / 4;
-   }
+   /* Normally, SubRegNum is in bytes (0..31).  However, 3-src instructions
+    * use 32-bit units (components 0..7).  Since they only support F/D/UD
+    * types, this doesn't lose any flexibility, but uses fewer bits.
+    */
+   return reg.subnr / 4;
 }
 
 static brw_inst *
-brw_alu3(struct brw_compile *p, unsigned opcode, struct brw_reg dest,
+brw_alu3(struct brw_codegen *p, unsigned opcode, struct brw_reg dest,
          struct brw_reg src0, struct brw_reg src1, struct brw_reg src2)
 {
-   struct brw_context *brw = p->brw;
+   const struct gen_device_info *devinfo = p->devinfo;
    brw_inst *inst = next_insn(p, opcode);
 
    gen7_convert_mrf_to_grf(p, &dest);
 
-   assert(brw_inst_access_mode(brw, inst) == BRW_ALIGN_16);
+   assert(brw_inst_access_mode(devinfo, inst) == BRW_ALIGN_16);
 
    assert(dest.file == BRW_GENERAL_REGISTER_FILE ||
          dest.file == BRW_MESSAGE_REGISTER_FILE);
    assert(dest.nr < 128);
    assert(dest.address_mode == BRW_ADDRESS_DIRECT);
-   assert(dest.type == BRW_REGISTER_TYPE_F ||
-          dest.type == BRW_REGISTER_TYPE_D ||
+   assert(dest.type == BRW_REGISTER_TYPE_F  ||
+          dest.type == BRW_REGISTER_TYPE_DF ||
+          dest.type == BRW_REGISTER_TYPE_D  ||
           dest.type == BRW_REGISTER_TYPE_UD);
-   if (brw->gen == 6) {
-      brw_inst_set_3src_dst_reg_file(brw, inst,
+   if (devinfo->gen == 6) {
+      brw_inst_set_3src_dst_reg_file(devinfo, inst,
                                      dest.file == BRW_MESSAGE_REGISTER_FILE);
    }
-   brw_inst_set_3src_dst_reg_nr(brw, inst, dest.nr);
-   brw_inst_set_3src_dst_subreg_nr(brw, inst, dest.subnr / 16);
-   brw_inst_set_3src_dst_writemask(brw, inst, dest.dw1.bits.writemask);
-   guess_execution_size(p, inst, dest);
+   brw_inst_set_3src_dst_reg_nr(devinfo, inst, dest.nr);
+   brw_inst_set_3src_dst_subreg_nr(devinfo, inst, dest.subnr / 16);
+   brw_inst_set_3src_dst_writemask(devinfo, inst, dest.writemask);
 
    assert(src0.file == BRW_GENERAL_REGISTER_FILE);
    assert(src0.address_mode == BRW_ADDRESS_DIRECT);
    assert(src0.nr < 128);
-   brw_inst_set_3src_src0_swizzle(brw, inst, src0.dw1.bits.swizzle);
-   brw_inst_set_3src_src0_subreg_nr(brw, inst, get_3src_subreg_nr(src0));
-   brw_inst_set_3src_src0_reg_nr(brw, inst, src0.nr);
-   brw_inst_set_3src_src0_abs(brw, inst, src0.abs);
-   brw_inst_set_3src_src0_negate(brw, inst, src0.negate);
-   brw_inst_set_3src_src0_rep_ctrl(brw, inst,
+   brw_inst_set_3src_src0_swizzle(devinfo, inst, src0.swizzle);
+   brw_inst_set_3src_src0_subreg_nr(devinfo, inst, get_3src_subreg_nr(src0));
+   brw_inst_set_3src_src0_reg_nr(devinfo, inst, src0.nr);
+   brw_inst_set_3src_src0_abs(devinfo, inst, src0.abs);
+   brw_inst_set_3src_src0_negate(devinfo, inst, src0.negate);
+   brw_inst_set_3src_src0_rep_ctrl(devinfo, inst,
                                    src0.vstride == BRW_VERTICAL_STRIDE_0);
 
    assert(src1.file == BRW_GENERAL_REGISTER_FILE);
    assert(src1.address_mode == BRW_ADDRESS_DIRECT);
    assert(src1.nr < 128);
-   brw_inst_set_3src_src1_swizzle(brw, inst, src1.dw1.bits.swizzle);
-   brw_inst_set_3src_src1_subreg_nr(brw, inst, get_3src_subreg_nr(src1));
-   brw_inst_set_3src_src1_reg_nr(brw, inst, src1.nr);
-   brw_inst_set_3src_src1_abs(brw, inst, src1.abs);
-   brw_inst_set_3src_src1_negate(brw, inst, src1.negate);
-   brw_inst_set_3src_src1_rep_ctrl(brw, inst,
+   brw_inst_set_3src_src1_swizzle(devinfo, inst, src1.swizzle);
+   brw_inst_set_3src_src1_subreg_nr(devinfo, inst, get_3src_subreg_nr(src1));
+   brw_inst_set_3src_src1_reg_nr(devinfo, inst, src1.nr);
+   brw_inst_set_3src_src1_abs(devinfo, inst, src1.abs);
+   brw_inst_set_3src_src1_negate(devinfo, inst, src1.negate);
+   brw_inst_set_3src_src1_rep_ctrl(devinfo, inst,
                                    src1.vstride == BRW_VERTICAL_STRIDE_0);
 
    assert(src2.file == BRW_GENERAL_REGISTER_FILE);
    assert(src2.address_mode == BRW_ADDRESS_DIRECT);
    assert(src2.nr < 128);
-   brw_inst_set_3src_src2_swizzle(brw, inst, src2.dw1.bits.swizzle);
-   brw_inst_set_3src_src2_subreg_nr(brw, inst, get_3src_subreg_nr(src2));
-   brw_inst_set_3src_src2_reg_nr(brw, inst, src2.nr);
-   brw_inst_set_3src_src2_abs(brw, inst, src2.abs);
-   brw_inst_set_3src_src2_negate(brw, inst, src2.negate);
-   brw_inst_set_3src_src2_rep_ctrl(brw, inst,
+   brw_inst_set_3src_src2_swizzle(devinfo, inst, src2.swizzle);
+   brw_inst_set_3src_src2_subreg_nr(devinfo, inst, get_3src_subreg_nr(src2));
+   brw_inst_set_3src_src2_reg_nr(devinfo, inst, src2.nr);
+   brw_inst_set_3src_src2_abs(devinfo, inst, src2.abs);
+   brw_inst_set_3src_src2_negate(devinfo, inst, src2.negate);
+   brw_inst_set_3src_src2_rep_ctrl(devinfo, inst,
                                    src2.vstride == BRW_VERTICAL_STRIDE_0);
 
-   if (brw->gen >= 7) {
+   if (devinfo->gen >= 7) {
       /* Set both the source and destination types based on dest.type,
        * ignoring the source register types.  The MAD and LRP emitters ensure
        * that all four types are float.  The BFE and BFI2 emitters, however,
@@ -933,17 +963,23 @@ brw_alu3(struct brw_compile *p, unsigned opcode, struct brw_reg dest,
        */
       switch (dest.type) {
       case BRW_REGISTER_TYPE_F:
-         brw_inst_set_3src_src_type(brw, inst, BRW_3SRC_TYPE_F);
-         brw_inst_set_3src_dst_type(brw, inst, BRW_3SRC_TYPE_F);
+         brw_inst_set_3src_src_type(devinfo, inst, BRW_3SRC_TYPE_F);
+         brw_inst_set_3src_dst_type(devinfo, inst, BRW_3SRC_TYPE_F);
+         break;
+      case BRW_REGISTER_TYPE_DF:
+         brw_inst_set_3src_src_type(devinfo, inst, BRW_3SRC_TYPE_DF);
+         brw_inst_set_3src_dst_type(devinfo, inst, BRW_3SRC_TYPE_DF);
          break;
       case BRW_REGISTER_TYPE_D:
-         brw_inst_set_3src_src_type(brw, inst, BRW_3SRC_TYPE_D);
-         brw_inst_set_3src_dst_type(brw, inst, BRW_3SRC_TYPE_D);
+         brw_inst_set_3src_src_type(devinfo, inst, BRW_3SRC_TYPE_D);
+         brw_inst_set_3src_dst_type(devinfo, inst, BRW_3SRC_TYPE_D);
          break;
       case BRW_REGISTER_TYPE_UD:
-         brw_inst_set_3src_src_type(brw, inst, BRW_3SRC_TYPE_UD);
-         brw_inst_set_3src_dst_type(brw, inst, BRW_3SRC_TYPE_UD);
+         brw_inst_set_3src_src_type(devinfo, inst, BRW_3SRC_TYPE_UD);
+         brw_inst_set_3src_dst_type(devinfo, inst, BRW_3SRC_TYPE_UD);
          break;
+      default:
+         unreachable("not reached");
       }
    }
 
@@ -955,7 +991,7 @@ brw_alu3(struct brw_compile *p, unsigned opcode, struct brw_reg dest,
  * Convenience routines.
  */
 #define ALU1(OP)                                       \
-brw_inst *brw_##OP(struct brw_compile *p,              \
+brw_inst *brw_##OP(struct brw_codegen *p,              \
              struct brw_reg dest,                      \
              struct brw_reg src0)                      \
 {                                                      \
@@ -963,7 +999,7 @@ brw_inst *brw_##OP(struct brw_compile *p,           \
 }
 
 #define ALU2(OP)                                       \
-brw_inst *brw_##OP(struct brw_compile *p,              \
+brw_inst *brw_##OP(struct brw_codegen *p,              \
              struct brw_reg dest,                      \
              struct brw_reg src0,                      \
              struct brw_reg src1)                      \
@@ -972,7 +1008,7 @@ brw_inst *brw_##OP(struct brw_compile *p,          \
 }
 
 #define ALU3(OP)                                       \
-brw_inst *brw_##OP(struct brw_compile *p,              \
+brw_inst *brw_##OP(struct brw_codegen *p,              \
              struct brw_reg dest,                      \
              struct brw_reg src0,                      \
              struct brw_reg src1,                      \
@@ -982,16 +1018,23 @@ brw_inst *brw_##OP(struct brw_compile *p,                \
 }
 
 #define ALU3F(OP)                                               \
-brw_inst *brw_##OP(struct brw_compile *p,         \
+brw_inst *brw_##OP(struct brw_codegen *p,         \
                                  struct brw_reg dest,           \
                                  struct brw_reg src0,           \
                                  struct brw_reg src1,           \
                                  struct brw_reg src2)           \
 {                                                               \
-   assert(dest.type == BRW_REGISTER_TYPE_F);                    \
-   assert(src0.type == BRW_REGISTER_TYPE_F);                    \
-   assert(src1.type == BRW_REGISTER_TYPE_F);                    \
-   assert(src2.type == BRW_REGISTER_TYPE_F);                    \
+   assert(dest.type == BRW_REGISTER_TYPE_F ||                   \
+          dest.type == BRW_REGISTER_TYPE_DF);                   \
+   if (dest.type == BRW_REGISTER_TYPE_F) {                      \
+      assert(src0.type == BRW_REGISTER_TYPE_F);                 \
+      assert(src1.type == BRW_REGISTER_TYPE_F);                 \
+      assert(src2.type == BRW_REGISTER_TYPE_F);                 \
+   } else if (dest.type == BRW_REGISTER_TYPE_DF) {              \
+      assert(src0.type == BRW_REGISTER_TYPE_DF);                \
+      assert(src1.type == BRW_REGISTER_TYPE_DF);                \
+      assert(src2.type == BRW_REGISTER_TYPE_DF);                \
+   }                                                            \
    return brw_alu3(p, BRW_OPCODE_##OP, dest, src0, src1, src2); \
 }
 
@@ -1003,21 +1046,21 @@ brw_inst *brw_##OP(struct brw_compile *p,         \
  * Sandybridge and later appear to round correctly without an ADD.
  */
 #define ROUND(OP)                                                            \
-void brw_##OP(struct brw_compile *p,                                         \
+void brw_##OP(struct brw_codegen *p,                                         \
              struct brw_reg dest,                                            \
              struct brw_reg src)                                             \
 {                                                                            \
-   struct brw_context *brw = p->brw;                                         \
+   const struct gen_device_info *devinfo = p->devinfo;                                       \
    brw_inst *rnd, *add;                                                              \
    rnd = next_insn(p, BRW_OPCODE_##OP);                                              \
    brw_set_dest(p, rnd, dest);                                               \
    brw_set_src0(p, rnd, src);                                                \
                                                                              \
-   if (brw->gen < 6) {                                                       \
+   if (devinfo->gen < 6) {                                                           \
       /* turn on round-increments */                                         \
-      brw_inst_set_cond_modifier(brw, rnd, BRW_CONDITIONAL_R);                \
+      brw_inst_set_cond_modifier(devinfo, rnd, BRW_CONDITIONAL_R);            \
       add = brw_ADD(p, dest, dest, brw_imm_f(1.0f));                         \
-      brw_inst_set_pred_control(brw, add, BRW_PREDICATE_NORMAL);              \
+      brw_inst_set_pred_control(devinfo, add, BRW_PREDICATE_NORMAL);          \
    }                                                                         \
 }
 
@@ -1030,6 +1073,7 @@ ALU2(OR)
 ALU2(XOR)
 ALU2(SHR)
 ALU2(SHL)
+ALU1(DIM)
 ALU2(ASR)
 ALU1(FRC)
 ALU1(RNDD)
@@ -1040,7 +1084,6 @@ ALU2(DP4)
 ALU2(DPH)
 ALU2(DP3)
 ALU2(DP2)
-ALU2(PLN)
 ALU3F(MAD)
 ALU3F(LRP)
 ALU1(BFREV)
@@ -1058,7 +1101,7 @@ ROUND(RNDE)
 
 
 brw_inst *
-brw_ADD(struct brw_compile *p, struct brw_reg dest,
+brw_ADD(struct brw_codegen *p, struct brw_reg dest,
         struct brw_reg src0, struct brw_reg src1)
 {
    /* 6.2.2: add */
@@ -1080,7 +1123,7 @@ brw_ADD(struct brw_compile *p, struct brw_reg dest,
 }
 
 brw_inst *
-brw_AVG(struct brw_compile *p, struct brw_reg dest,
+brw_AVG(struct brw_codegen *p, struct brw_reg dest,
         struct brw_reg src0, struct brw_reg src1)
 {
    assert(dest.type == src0.type);
@@ -1101,7 +1144,7 @@ brw_AVG(struct brw_compile *p, struct brw_reg dest,
 }
 
 brw_inst *
-brw_MUL(struct brw_compile *p, struct brw_reg dest,
+brw_MUL(struct brw_codegen *p, struct brw_reg dest,
         struct brw_reg src0, struct brw_reg src1)
 {
    /* 6.32.38: mul */
@@ -1135,7 +1178,7 @@ brw_MUL(struct brw_compile *p, struct brw_reg dest,
 }
 
 brw_inst *
-brw_LINE(struct brw_compile *p, struct brw_reg dest,
+brw_LINE(struct brw_codegen *p, struct brw_reg dest,
          struct brw_reg src0, struct brw_reg src1)
 {
    src0.vstride = BRW_VERTICAL_STRIDE_0;
@@ -1145,61 +1188,103 @@ brw_LINE(struct brw_compile *p, struct brw_reg dest,
 }
 
 brw_inst *
-brw_F32TO16(struct brw_compile *p, struct brw_reg dst, struct brw_reg src)
+brw_PLN(struct brw_codegen *p, struct brw_reg dest,
+        struct brw_reg src0, struct brw_reg src1)
 {
-   const struct brw_context *brw = p->brw;
-   bool align16 = brw_inst_access_mode(brw, p->current) == BRW_ALIGN_16;
+   src0.vstride = BRW_VERTICAL_STRIDE_0;
+   src0.width = BRW_WIDTH_1;
+   src0.hstride = BRW_HORIZONTAL_STRIDE_0;
+   src1.vstride = BRW_VERTICAL_STRIDE_8;
+   src1.width = BRW_WIDTH_8;
+   src1.hstride = BRW_HORIZONTAL_STRIDE_1;
+   return brw_alu2(p, BRW_OPCODE_PLN, dest, src0, src1);
+}
+
+brw_inst *
+brw_F32TO16(struct brw_codegen *p, struct brw_reg dst, struct brw_reg src)
+{
+   const struct gen_device_info *devinfo = p->devinfo;
+   const bool align16 = brw_inst_access_mode(devinfo, p->current) == BRW_ALIGN_16;
+   /* The F32TO16 instruction doesn't support 32-bit destination types in
+    * Align1 mode, and neither does the Gen8 implementation in terms of a
+    * converting MOV.  Gen7 does zero out the high 16 bits in Align16 mode as
+    * an undocumented feature.
+    */
+   const bool needs_zero_fill = (dst.type == BRW_REGISTER_TYPE_UD &&
+                                 (!align16 || devinfo->gen >= 8));
+   brw_inst *inst;
 
    if (align16) {
       assert(dst.type == BRW_REGISTER_TYPE_UD);
    } else {
-      assert(dst.type == BRW_REGISTER_TYPE_W ||
+      assert(dst.type == BRW_REGISTER_TYPE_UD ||
+             dst.type == BRW_REGISTER_TYPE_W ||
              dst.type == BRW_REGISTER_TYPE_UW ||
              dst.type == BRW_REGISTER_TYPE_HF);
    }
 
-   if (brw->gen >= 8) {
-      if (align16) {
-         /* Emulate the Gen7 zeroing bug (see comments in vec4_visitor's
-          * emit_pack_half_2x16 method.)
-          */
-         brw_MOV(p, retype(dst, BRW_REGISTER_TYPE_UD), brw_imm_ud(0u));
-      }
-      return brw_MOV(p, retype(dst, BRW_REGISTER_TYPE_HF), src);
+   brw_push_insn_state(p);
+
+   if (needs_zero_fill) {
+      brw_set_default_access_mode(p, BRW_ALIGN_1);
+      dst = spread(retype(dst, BRW_REGISTER_TYPE_W), 2);
+   }
+
+   if (devinfo->gen >= 8) {
+      inst = brw_MOV(p, retype(dst, BRW_REGISTER_TYPE_HF), src);
    } else {
-      assert(brw->gen == 7);
-      return brw_alu1(p, BRW_OPCODE_F32TO16, dst, src);
+      assert(devinfo->gen == 7);
+      inst = brw_alu1(p, BRW_OPCODE_F32TO16, dst, src);
+   }
+
+   if (needs_zero_fill) {
+      brw_inst_set_no_dd_clear(devinfo, inst, true);
+      inst = brw_MOV(p, suboffset(dst, 1), brw_imm_ud(0u));
+      brw_inst_set_no_dd_check(devinfo, inst, true);
    }
+
+   brw_pop_insn_state(p);
+   return inst;
 }
 
 brw_inst *
-brw_F16TO32(struct brw_compile *p, struct brw_reg dst, struct brw_reg src)
+brw_F16TO32(struct brw_codegen *p, struct brw_reg dst, struct brw_reg src)
 {
-   const struct brw_context *brw = p->brw;
-   bool align16 = brw_inst_access_mode(brw, p->current) == BRW_ALIGN_16;
+   const struct gen_device_info *devinfo = p->devinfo;
+   bool align16 = brw_inst_access_mode(devinfo, p->current) == BRW_ALIGN_16;
 
    if (align16) {
       assert(src.type == BRW_REGISTER_TYPE_UD);
    } else {
+      /* From the Ivybridge PRM, Vol4, Part3, Section 6.26 f16to32:
+       *
+       *   Because this instruction does not have a 16-bit floating-point
+       *   type, the source data type must be Word (W). The destination type
+       *   must be F (Float).
+       */
+      if (src.type == BRW_REGISTER_TYPE_UD)
+         src = spread(retype(src, BRW_REGISTER_TYPE_W), 2);
+
       assert(src.type == BRW_REGISTER_TYPE_W ||
              src.type == BRW_REGISTER_TYPE_UW ||
              src.type == BRW_REGISTER_TYPE_HF);
    }
 
-   if (brw->gen >= 8) {
+   if (devinfo->gen >= 8) {
       return brw_MOV(p, dst, retype(src, BRW_REGISTER_TYPE_HF));
    } else {
-      assert(brw->gen == 7);
+      assert(devinfo->gen == 7);
       return brw_alu1(p, BRW_OPCODE_F16TO32, dst, src);
    }
 }
 
 
-void brw_NOP(struct brw_compile *p)
+void brw_NOP(struct brw_codegen *p)
 {
    brw_inst *insn = next_insn(p, BRW_OPCODE_NOP);
-   brw_set_dest(p, insn, retype(brw_vec4_grf(0,0), BRW_REGISTER_TYPE_UD));
-   brw_set_src0(p, insn, retype(brw_vec4_grf(0,0), BRW_REGISTER_TYPE_UD));
+   brw_inst_set_exec_size(p->devinfo, insn, BRW_EXECUTE_1);
+   brw_set_dest(p, insn, retype(brw_vec1_grf(0,0), BRW_REGISTER_TYPE_UD));
+   brw_set_src0(p, insn, retype(brw_vec1_grf(0,0), BRW_REGISTER_TYPE_UD));
    brw_set_src1(p, insn, brw_imm_ud(0x0));
 }
 
@@ -1212,23 +1297,23 @@ void brw_NOP(struct brw_compile *p)
  */
 
 brw_inst *
-brw_JMPI(struct brw_compile *p, struct brw_reg index,
+brw_JMPI(struct brw_codegen *p, struct brw_reg index,
          unsigned predicate_control)
 {
-   const struct brw_context *brw = p->brw;
+   const struct gen_device_info *devinfo = p->devinfo;
    struct brw_reg ip = brw_ip_reg();
    brw_inst *inst = brw_alu2(p, BRW_OPCODE_JMPI, ip, ip, index);
 
-   brw_inst_set_exec_size(brw, inst, BRW_EXECUTE_2);
-   brw_inst_set_qtr_control(brw, inst, BRW_COMPRESSION_NONE);
-   brw_inst_set_mask_control(brw, inst, BRW_MASK_DISABLE);
-   brw_inst_set_pred_control(brw, inst, predicate_control);
+   brw_inst_set_exec_size(devinfo, inst, BRW_EXECUTE_2);
+   brw_inst_set_qtr_control(devinfo, inst, BRW_COMPRESSION_NONE);
+   brw_inst_set_mask_control(devinfo, inst, BRW_MASK_DISABLE);
+   brw_inst_set_pred_control(devinfo, inst, predicate_control);
 
    return inst;
 }
 
 static void
-push_if_stack(struct brw_compile *p, brw_inst *inst)
+push_if_stack(struct brw_codegen *p, brw_inst *inst)
 {
    p->if_stack[p->if_stack_depth] = inst - p->store;
 
@@ -1241,16 +1326,16 @@ push_if_stack(struct brw_compile *p, brw_inst *inst)
 }
 
 static brw_inst *
-pop_if_stack(struct brw_compile *p)
+pop_if_stack(struct brw_codegen *p)
 {
    p->if_stack_depth--;
    return &p->store[p->if_stack[p->if_stack_depth]];
 }
 
 static void
-push_loop_stack(struct brw_compile *p, brw_inst *inst)
+push_loop_stack(struct brw_codegen *p, brw_inst *inst)
 {
-   if (p->loop_stack_array_size < p->loop_stack_depth) {
+   if (p->loop_stack_array_size <= (p->loop_stack_depth + 1)) {
       p->loop_stack_array_size *= 2;
       p->loop_stack = reralloc(p->mem_ctx, p->loop_stack, int,
                               p->loop_stack_array_size);
@@ -1264,7 +1349,7 @@ push_loop_stack(struct brw_compile *p, brw_inst *inst)
 }
 
 static brw_inst *
-get_inner_do_insn(struct brw_compile *p)
+get_inner_do_insn(struct brw_codegen *p)
 {
    return &p->store[p->loop_stack[p->loop_stack_depth - 1]];
 }
@@ -1277,49 +1362,49 @@ get_inner_do_insn(struct brw_compile *p)
  *
  * When the matching 'else' instruction is reached (presumably by
  * countdown of the instruction count patched in by our ELSE/ENDIF
- * functions), the relevent flags are inverted.
+ * functions), the relevant flags are inverted.
  *
  * When the matching 'endif' instruction is reached, the flags are
  * popped off.  If the stack is now empty, normal execution resumes.
  */
 brw_inst *
-brw_IF(struct brw_compile *p, unsigned execute_size)
+brw_IF(struct brw_codegen *p, unsigned execute_size)
 {
-   struct brw_context *brw = p->brw;
+   const struct gen_device_info *devinfo = p->devinfo;
    brw_inst *insn;
 
    insn = next_insn(p, BRW_OPCODE_IF);
 
    /* Override the defaults for this instruction:
     */
-   if (brw->gen < 6) {
+   if (devinfo->gen < 6) {
       brw_set_dest(p, insn, brw_ip_reg());
       brw_set_src0(p, insn, brw_ip_reg());
       brw_set_src1(p, insn, brw_imm_d(0x0));
-   } else if (brw->gen == 6) {
+   } else if (devinfo->gen == 6) {
       brw_set_dest(p, insn, brw_imm_w(0));
-      brw_inst_set_gen6_jump_count(brw, insn, 0);
+      brw_inst_set_gen6_jump_count(devinfo, insn, 0);
       brw_set_src0(p, insn, vec1(retype(brw_null_reg(), BRW_REGISTER_TYPE_D)));
       brw_set_src1(p, insn, vec1(retype(brw_null_reg(), BRW_REGISTER_TYPE_D)));
-   } else if (brw->gen == 7) {
+   } else if (devinfo->gen == 7) {
       brw_set_dest(p, insn, vec1(retype(brw_null_reg(), BRW_REGISTER_TYPE_D)));
       brw_set_src0(p, insn, vec1(retype(brw_null_reg(), BRW_REGISTER_TYPE_D)));
-      brw_set_src1(p, insn, brw_imm_ud(0));
-      brw_inst_set_jip(brw, insn, 0);
-      brw_inst_set_uip(brw, insn, 0);
+      brw_set_src1(p, insn, brw_imm_w(0));
+      brw_inst_set_jip(devinfo, insn, 0);
+      brw_inst_set_uip(devinfo, insn, 0);
    } else {
       brw_set_dest(p, insn, vec1(retype(brw_null_reg(), BRW_REGISTER_TYPE_D)));
       brw_set_src0(p, insn, brw_imm_d(0));
-      brw_inst_set_jip(brw, insn, 0);
-      brw_inst_set_uip(brw, insn, 0);
+      brw_inst_set_jip(devinfo, insn, 0);
+      brw_inst_set_uip(devinfo, insn, 0);
    }
 
-   brw_inst_set_exec_size(brw, insn, execute_size);
-   brw_inst_set_qtr_control(brw, insn, BRW_COMPRESSION_NONE);
-   brw_inst_set_pred_control(brw, insn, BRW_PREDICATE_NORMAL);
-   brw_inst_set_mask_control(brw, insn, BRW_MASK_ENABLE);
-   if (!p->single_program_flow && brw->gen < 6)
-      brw_inst_set_thread_control(brw, insn, BRW_THREAD_SWITCH);
+   brw_inst_set_exec_size(devinfo, insn, execute_size);
+   brw_inst_set_qtr_control(devinfo, insn, BRW_COMPRESSION_NONE);
+   brw_inst_set_pred_control(devinfo, insn, BRW_PREDICATE_NORMAL);
+   brw_inst_set_mask_control(devinfo, insn, BRW_MASK_ENABLE);
+   if (!p->single_program_flow && devinfo->gen < 6)
+      brw_inst_set_thread_control(devinfo, insn, BRW_THREAD_SWITCH);
 
    push_if_stack(p, insn);
    p->if_depth_in_loop[p->loop_stack_depth]++;
@@ -1330,24 +1415,24 @@ brw_IF(struct brw_compile *p, unsigned execute_size)
  * embedded comparison (conditional modifier).  It is not used on gen7.
  */
 brw_inst *
-gen6_IF(struct brw_compile *p, enum brw_conditional_mod conditional,
+gen6_IF(struct brw_codegen *p, enum brw_conditional_mod conditional,
        struct brw_reg src0, struct brw_reg src1)
 {
-   const struct brw_context *brw = p->brw;
+   const struct gen_device_info *devinfo = p->devinfo;
    brw_inst *insn;
 
    insn = next_insn(p, BRW_OPCODE_IF);
 
    brw_set_dest(p, insn, brw_imm_w(0));
-   brw_inst_set_exec_size(brw, insn, p->compressed ? BRW_EXECUTE_16
-                                                   : BRW_EXECUTE_8);
-   brw_inst_set_gen6_jump_count(brw, insn, 0);
+   brw_inst_set_exec_size(devinfo, insn,
+                          brw_inst_exec_size(devinfo, p->current));
+   brw_inst_set_gen6_jump_count(devinfo, insn, 0);
    brw_set_src0(p, insn, src0);
    brw_set_src1(p, insn, src1);
 
-   assert(brw_inst_qtr_control(brw, insn) == BRW_COMPRESSION_NONE);
-   assert(brw_inst_pred_control(brw, insn) == BRW_PREDICATE_NONE);
-   brw_inst_set_cond_modifier(brw, insn, conditional);
+   assert(brw_inst_qtr_control(devinfo, insn) == BRW_COMPRESSION_NONE);
+   assert(brw_inst_pred_control(devinfo, insn) == BRW_PREDICATE_NONE);
+   brw_inst_set_cond_modifier(devinfo, insn, conditional);
 
    push_if_stack(p, insn);
    return insn;
@@ -1357,18 +1442,18 @@ gen6_IF(struct brw_compile *p, enum brw_conditional_mod conditional,
  * In single-program-flow (SPF) mode, convert IF and ELSE into ADDs.
  */
 static void
-convert_IF_ELSE_to_ADD(struct brw_compile *p,
+convert_IF_ELSE_to_ADD(struct brw_codegen *p,
                        brw_inst *if_inst, brw_inst *else_inst)
 {
-   const struct brw_context *brw = p->brw;
+   const struct gen_device_info *devinfo = p->devinfo;
 
    /* The next instruction (where the ENDIF would be, if it existed) */
    brw_inst *next_inst = &p->store[p->nr_insn];
 
    assert(p->single_program_flow);
-   assert(if_inst != NULL && brw_inst_opcode(brw, if_inst) == BRW_OPCODE_IF);
-   assert(else_inst == NULL || brw_inst_opcode(brw, else_inst) == BRW_OPCODE_ELSE);
-   assert(brw_inst_exec_size(brw, if_inst) == BRW_EXECUTE_1);
+   assert(if_inst != NULL && brw_inst_opcode(devinfo, if_inst) == BRW_OPCODE_IF);
+   assert(else_inst == NULL || brw_inst_opcode(devinfo, else_inst) == BRW_OPCODE_ELSE);
+   assert(brw_inst_exec_size(devinfo, if_inst) == BRW_EXECUTE_1);
 
    /* Convert IF to an ADD instruction that moves the instruction pointer
     * to the first instruction of the ELSE block.  If there is no ELSE
@@ -1378,19 +1463,19 @@ convert_IF_ELSE_to_ADD(struct brw_compile *p,
     * stack operations, and if we're currently executing, we just want to
     * continue normally.
     */
-   brw_inst_set_opcode(brw, if_inst, BRW_OPCODE_ADD);
-   brw_inst_set_pred_inv(brw, if_inst, true);
+   brw_inst_set_opcode(devinfo, if_inst, BRW_OPCODE_ADD);
+   brw_inst_set_pred_inv(devinfo, if_inst, true);
 
    if (else_inst != NULL) {
       /* Convert ELSE to an ADD instruction that points where the ENDIF
        * would be.
        */
-      brw_inst_set_opcode(brw, else_inst, BRW_OPCODE_ADD);
+      brw_inst_set_opcode(devinfo, else_inst, BRW_OPCODE_ADD);
 
-      brw_inst_set_imm_ud(brw, if_inst, (else_inst - if_inst + 1) * 16);
-      brw_inst_set_imm_ud(brw, else_inst, (next_inst - else_inst) * 16);
+      brw_inst_set_imm_ud(devinfo, if_inst, (else_inst - if_inst + 1) * 16);
+      brw_inst_set_imm_ud(devinfo, else_inst, (next_inst - else_inst) * 16);
    } else {
-      brw_inst_set_imm_ud(brw, if_inst, (next_inst - if_inst) * 16);
+      brw_inst_set_imm_ud(devinfo, if_inst, (next_inst - if_inst) * 16);
    }
 }
 
@@ -1398,10 +1483,10 @@ convert_IF_ELSE_to_ADD(struct brw_compile *p,
  * Patch IF and ELSE instructions with appropriate jump targets.
  */
 static void
-patch_IF_ELSE(struct brw_compile *p,
+patch_IF_ELSE(struct brw_codegen *p,
               brw_inst *if_inst, brw_inst *else_inst, brw_inst *endif_inst)
 {
-   struct brw_context *brw = p->brw;
+   const struct gen_device_info *devinfo = p->devinfo;
 
    /* We shouldn't be patching IF and ELSE instructions in single program flow
     * mode when gen < 6, because in single program flow mode on those
@@ -1415,118 +1500,118 @@ patch_IF_ELSE(struct brw_compile *p,
     * instructions to conditional ADDs.  So we do patch IF and ELSE
     * instructions in single program flow mode on those platforms.
     */
-   if (brw->gen < 6)
+   if (devinfo->gen < 6)
       assert(!p->single_program_flow);
 
-   assert(if_inst != NULL && brw_inst_opcode(brw, if_inst) == BRW_OPCODE_IF);
+   assert(if_inst != NULL && brw_inst_opcode(devinfo, if_inst) == BRW_OPCODE_IF);
    assert(endif_inst != NULL);
-   assert(else_inst == NULL || brw_inst_opcode(brw, else_inst) == BRW_OPCODE_ELSE);
+   assert(else_inst == NULL || brw_inst_opcode(devinfo, else_inst) == BRW_OPCODE_ELSE);
 
-   unsigned br = brw_jump_scale(brw);
+   unsigned br = brw_jump_scale(devinfo);
 
-   assert(brw_inst_opcode(brw, endif_inst) == BRW_OPCODE_ENDIF);
-   brw_inst_set_exec_size(brw, endif_inst, brw_inst_exec_size(brw, if_inst));
+   assert(brw_inst_opcode(devinfo, endif_inst) == BRW_OPCODE_ENDIF);
+   brw_inst_set_exec_size(devinfo, endif_inst, brw_inst_exec_size(devinfo, if_inst));
 
    if (else_inst == NULL) {
       /* Patch IF -> ENDIF */
-      if (brw->gen < 6) {
+      if (devinfo->gen < 6) {
         /* Turn it into an IFF, which means no mask stack operations for
          * all-false and jumping past the ENDIF.
          */
-         brw_inst_set_opcode(brw, if_inst, BRW_OPCODE_IFF);
-         brw_inst_set_gen4_jump_count(brw, if_inst,
+         brw_inst_set_opcode(devinfo, if_inst, BRW_OPCODE_IFF);
+         brw_inst_set_gen4_jump_count(devinfo, if_inst,
                                       br * (endif_inst - if_inst + 1));
-         brw_inst_set_gen4_pop_count(brw, if_inst, 0);
-      } else if (brw->gen == 6) {
+         brw_inst_set_gen4_pop_count(devinfo, if_inst, 0);
+      } else if (devinfo->gen == 6) {
         /* As of gen6, there is no IFF and IF must point to the ENDIF. */
-         brw_inst_set_gen6_jump_count(brw, if_inst, br*(endif_inst - if_inst));
+         brw_inst_set_gen6_jump_count(devinfo, if_inst, br*(endif_inst - if_inst));
       } else {
-         brw_inst_set_uip(brw, if_inst, br * (endif_inst - if_inst));
-         brw_inst_set_jip(brw, if_inst, br * (endif_inst - if_inst));
+         brw_inst_set_uip(devinfo, if_inst, br * (endif_inst - if_inst));
+         brw_inst_set_jip(devinfo, if_inst, br * (endif_inst - if_inst));
       }
    } else {
-      brw_inst_set_exec_size(brw, else_inst, brw_inst_exec_size(brw, if_inst));
+      brw_inst_set_exec_size(devinfo, else_inst, brw_inst_exec_size(devinfo, if_inst));
 
       /* Patch IF -> ELSE */
-      if (brw->gen < 6) {
-         brw_inst_set_gen4_jump_count(brw, if_inst,
+      if (devinfo->gen < 6) {
+         brw_inst_set_gen4_jump_count(devinfo, if_inst,
                                       br * (else_inst - if_inst));
-         brw_inst_set_gen4_pop_count(brw, if_inst, 0);
-      } else if (brw->gen == 6) {
-         brw_inst_set_gen6_jump_count(brw, if_inst,
+         brw_inst_set_gen4_pop_count(devinfo, if_inst, 0);
+      } else if (devinfo->gen == 6) {
+         brw_inst_set_gen6_jump_count(devinfo, if_inst,
                                       br * (else_inst - if_inst + 1));
       }
 
       /* Patch ELSE -> ENDIF */
-      if (brw->gen < 6) {
+      if (devinfo->gen < 6) {
         /* BRW_OPCODE_ELSE pre-gen6 should point just past the
          * matching ENDIF.
          */
-         brw_inst_set_gen4_jump_count(brw, else_inst,
+         brw_inst_set_gen4_jump_count(devinfo, else_inst,
                                       br * (endif_inst - else_inst + 1));
-         brw_inst_set_gen4_pop_count(brw, else_inst, 1);
-      } else if (brw->gen == 6) {
+         brw_inst_set_gen4_pop_count(devinfo, else_inst, 1);
+      } else if (devinfo->gen == 6) {
         /* BRW_OPCODE_ELSE on gen6 should point to the matching ENDIF. */
-         brw_inst_set_gen6_jump_count(brw, else_inst,
+         brw_inst_set_gen6_jump_count(devinfo, else_inst,
                                       br * (endif_inst - else_inst));
       } else {
         /* The IF instruction's JIP should point just past the ELSE */
-         brw_inst_set_jip(brw, if_inst, br * (else_inst - if_inst + 1));
+         brw_inst_set_jip(devinfo, if_inst, br * (else_inst - if_inst + 1));
         /* The IF instruction's UIP and ELSE's JIP should point to ENDIF */
-         brw_inst_set_uip(brw, if_inst, br * (endif_inst - if_inst));
-         brw_inst_set_jip(brw, else_inst, br * (endif_inst - else_inst));
-         if (brw->gen >= 8) {
+         brw_inst_set_uip(devinfo, if_inst, br * (endif_inst - if_inst));
+         brw_inst_set_jip(devinfo, else_inst, br * (endif_inst - else_inst));
+         if (devinfo->gen >= 8) {
             /* Since we don't set branch_ctrl, the ELSE's JIP and UIP both
              * should point to ENDIF.
              */
-            brw_inst_set_uip(brw, else_inst, br * (endif_inst - else_inst));
+            brw_inst_set_uip(devinfo, else_inst, br * (endif_inst - else_inst));
          }
       }
    }
 }
 
 void
-brw_ELSE(struct brw_compile *p)
+brw_ELSE(struct brw_codegen *p)
 {
-   struct brw_context *brw = p->brw;
+   const struct gen_device_info *devinfo = p->devinfo;
    brw_inst *insn;
 
    insn = next_insn(p, BRW_OPCODE_ELSE);
 
-   if (brw->gen < 6) {
+   if (devinfo->gen < 6) {
       brw_set_dest(p, insn, brw_ip_reg());
       brw_set_src0(p, insn, brw_ip_reg());
       brw_set_src1(p, insn, brw_imm_d(0x0));
-   } else if (brw->gen == 6) {
+   } else if (devinfo->gen == 6) {
       brw_set_dest(p, insn, brw_imm_w(0));
-      brw_inst_set_gen6_jump_count(brw, insn, 0);
+      brw_inst_set_gen6_jump_count(devinfo, insn, 0);
       brw_set_src0(p, insn, retype(brw_null_reg(), BRW_REGISTER_TYPE_D));
       brw_set_src1(p, insn, retype(brw_null_reg(), BRW_REGISTER_TYPE_D));
-   } else if (brw->gen == 7) {
+   } else if (devinfo->gen == 7) {
       brw_set_dest(p, insn, retype(brw_null_reg(), BRW_REGISTER_TYPE_D));
       brw_set_src0(p, insn, retype(brw_null_reg(), BRW_REGISTER_TYPE_D));
-      brw_set_src1(p, insn, brw_imm_ud(0));
-      brw_inst_set_jip(brw, insn, 0);
-      brw_inst_set_uip(brw, insn, 0);
+      brw_set_src1(p, insn, brw_imm_w(0));
+      brw_inst_set_jip(devinfo, insn, 0);
+      brw_inst_set_uip(devinfo, insn, 0);
    } else {
       brw_set_dest(p, insn, retype(brw_null_reg(), BRW_REGISTER_TYPE_D));
       brw_set_src0(p, insn, brw_imm_d(0));
-      brw_inst_set_jip(brw, insn, 0);
-      brw_inst_set_uip(brw, insn, 0);
+      brw_inst_set_jip(devinfo, insn, 0);
+      brw_inst_set_uip(devinfo, insn, 0);
    }
 
-   brw_inst_set_qtr_control(brw, insn, BRW_COMPRESSION_NONE);
-   brw_inst_set_mask_control(brw, insn, BRW_MASK_ENABLE);
-   if (!p->single_program_flow && brw->gen < 6)
-      brw_inst_set_thread_control(brw, insn, BRW_THREAD_SWITCH);
+   brw_inst_set_qtr_control(devinfo, insn, BRW_COMPRESSION_NONE);
+   brw_inst_set_mask_control(devinfo, insn, BRW_MASK_ENABLE);
+   if (!p->single_program_flow && devinfo->gen < 6)
+      brw_inst_set_thread_control(devinfo, insn, BRW_THREAD_SWITCH);
 
    push_if_stack(p, insn);
 }
 
 void
-brw_ENDIF(struct brw_compile *p)
+brw_ENDIF(struct brw_codegen *p)
 {
-   struct brw_context *brw = p->brw;
+   const struct gen_device_info *devinfo = p->devinfo;
    brw_inst *insn = NULL;
    brw_inst *else_inst = NULL;
    brw_inst *if_inst = NULL;
@@ -1545,11 +1630,11 @@ brw_ENDIF(struct brw_compile *p)
     * instructions to conditional ADDs.  So we only do this trick on Gen4 and
     * Gen5.
     */
-   if (brw->gen < 6 && p->single_program_flow)
+   if (devinfo->gen < 6 && p->single_program_flow)
       emit_endif = false;
 
    /*
-    * A single next_insn() may change the base adress of instruction store
+    * A single next_insn() may change the base address of instruction store
     * memory(p->store), so call it first before referencing the instruction
     * store pointer from an index
     */
@@ -1559,7 +1644,7 @@ brw_ENDIF(struct brw_compile *p)
    /* Pop the IF and (optional) ELSE instructions from the stack */
    p->if_depth_in_loop[p->loop_stack_depth]--;
    tmp = pop_if_stack(p);
-   if (brw_inst_opcode(brw, tmp) == BRW_OPCODE_ELSE) {
+   if (brw_inst_opcode(devinfo, tmp) == BRW_OPCODE_ELSE) {
       else_inst = tmp;
       tmp = pop_if_stack(p);
    }
@@ -1571,50 +1656,50 @@ brw_ENDIF(struct brw_compile *p)
       return;
    }
 
-   if (brw->gen < 6) {
-      brw_set_dest(p, insn, retype(brw_vec4_grf(0,0), BRW_REGISTER_TYPE_UD));
-      brw_set_src0(p, insn, retype(brw_vec4_grf(0,0), BRW_REGISTER_TYPE_UD));
+   if (devinfo->gen < 6) {
+      brw_set_dest(p, insn, retype(brw_null_reg(), BRW_REGISTER_TYPE_D));
+      brw_set_src0(p, insn, retype(brw_null_reg(), BRW_REGISTER_TYPE_D));
       brw_set_src1(p, insn, brw_imm_d(0x0));
-   } else if (brw->gen == 6) {
+   } else if (devinfo->gen == 6) {
       brw_set_dest(p, insn, brw_imm_w(0));
       brw_set_src0(p, insn, retype(brw_null_reg(), BRW_REGISTER_TYPE_D));
       brw_set_src1(p, insn, retype(brw_null_reg(), BRW_REGISTER_TYPE_D));
-   } else if (brw->gen == 7) {
+   } else if (devinfo->gen == 7) {
       brw_set_dest(p, insn, retype(brw_null_reg(), BRW_REGISTER_TYPE_D));
       brw_set_src0(p, insn, retype(brw_null_reg(), BRW_REGISTER_TYPE_D));
-      brw_set_src1(p, insn, brw_imm_ud(0));
+      brw_set_src1(p, insn, brw_imm_w(0));
    } else {
       brw_set_src0(p, insn, brw_imm_d(0));
    }
 
-   brw_inst_set_qtr_control(brw, insn, BRW_COMPRESSION_NONE);
-   brw_inst_set_mask_control(brw, insn, BRW_MASK_ENABLE);
-   if (brw->gen < 6)
-      brw_inst_set_thread_control(brw, insn, BRW_THREAD_SWITCH);
+   brw_inst_set_qtr_control(devinfo, insn, BRW_COMPRESSION_NONE);
+   brw_inst_set_mask_control(devinfo, insn, BRW_MASK_ENABLE);
+   if (devinfo->gen < 6)
+      brw_inst_set_thread_control(devinfo, insn, BRW_THREAD_SWITCH);
 
    /* Also pop item off the stack in the endif instruction: */
-   if (brw->gen < 6) {
-      brw_inst_set_gen4_jump_count(brw, insn, 0);
-      brw_inst_set_gen4_pop_count(brw, insn, 1);
-   } else if (brw->gen == 6) {
-      brw_inst_set_gen6_jump_count(brw, insn, 2);
+   if (devinfo->gen < 6) {
+      brw_inst_set_gen4_jump_count(devinfo, insn, 0);
+      brw_inst_set_gen4_pop_count(devinfo, insn, 1);
+   } else if (devinfo->gen == 6) {
+      brw_inst_set_gen6_jump_count(devinfo, insn, 2);
    } else {
-      brw_inst_set_jip(brw, insn, 2);
+      brw_inst_set_jip(devinfo, insn, 2);
    }
    patch_IF_ELSE(p, if_inst, else_inst, insn);
 }
 
 brw_inst *
-brw_BREAK(struct brw_compile *p)
+brw_BREAK(struct brw_codegen *p)
 {
-   struct brw_context *brw = p->brw;
+   const struct gen_device_info *devinfo = p->devinfo;
    brw_inst *insn;
 
    insn = next_insn(p, BRW_OPCODE_BREAK);
-   if (brw->gen >= 8) {
+   if (devinfo->gen >= 8) {
       brw_set_dest(p, insn, retype(brw_null_reg(), BRW_REGISTER_TYPE_D));
       brw_set_src0(p, insn, brw_imm_d(0x0));
-   } else if (brw->gen >= 6) {
+   } else if (devinfo->gen >= 6) {
       brw_set_dest(p, insn, retype(brw_null_reg(), BRW_REGISTER_TYPE_D));
       brw_set_src0(p, insn, retype(brw_null_reg(), BRW_REGISTER_TYPE_D));
       brw_set_src1(p, insn, brw_imm_d(0x0));
@@ -1622,62 +1707,59 @@ brw_BREAK(struct brw_compile *p)
       brw_set_dest(p, insn, brw_ip_reg());
       brw_set_src0(p, insn, brw_ip_reg());
       brw_set_src1(p, insn, brw_imm_d(0x0));
-      brw_inst_set_gen4_pop_count(brw, insn,
+      brw_inst_set_gen4_pop_count(devinfo, insn,
                                   p->if_depth_in_loop[p->loop_stack_depth]);
    }
-   brw_inst_set_qtr_control(brw, insn, BRW_COMPRESSION_NONE);
-   brw_inst_set_exec_size(brw, insn, p->compressed ? BRW_EXECUTE_16
-                                                   : BRW_EXECUTE_8);
+   brw_inst_set_qtr_control(devinfo, insn, BRW_COMPRESSION_NONE);
+   brw_inst_set_exec_size(devinfo, insn,
+                          brw_inst_exec_size(devinfo, p->current));
 
    return insn;
 }
 
 brw_inst *
-brw_CONT(struct brw_compile *p)
+brw_CONT(struct brw_codegen *p)
 {
-   const struct brw_context *brw = p->brw;
+   const struct gen_device_info *devinfo = p->devinfo;
    brw_inst *insn;
 
    insn = next_insn(p, BRW_OPCODE_CONTINUE);
    brw_set_dest(p, insn, brw_ip_reg());
-   if (brw->gen >= 8) {
+   if (devinfo->gen >= 8) {
       brw_set_src0(p, insn, brw_imm_d(0x0));
    } else {
       brw_set_src0(p, insn, brw_ip_reg());
       brw_set_src1(p, insn, brw_imm_d(0x0));
    }
 
-   if (brw->gen < 6) {
-      brw_inst_set_gen4_pop_count(brw, insn,
+   if (devinfo->gen < 6) {
+      brw_inst_set_gen4_pop_count(devinfo, insn,
                                   p->if_depth_in_loop[p->loop_stack_depth]);
    }
-   brw_inst_set_qtr_control(brw, insn, BRW_COMPRESSION_NONE);
-   brw_inst_set_exec_size(brw, insn, p->compressed ? BRW_EXECUTE_16
-                                                   : BRW_EXECUTE_8);
+   brw_inst_set_qtr_control(devinfo, insn, BRW_COMPRESSION_NONE);
+   brw_inst_set_exec_size(devinfo, insn,
+                          brw_inst_exec_size(devinfo, p->current));
    return insn;
 }
 
 brw_inst *
-gen6_HALT(struct brw_compile *p)
+gen6_HALT(struct brw_codegen *p)
 {
-   const struct brw_context *brw = p->brw;
+   const struct gen_device_info *devinfo = p->devinfo;
    brw_inst *insn;
 
    insn = next_insn(p, BRW_OPCODE_HALT);
    brw_set_dest(p, insn, retype(brw_null_reg(), BRW_REGISTER_TYPE_D));
-   if (brw->gen >= 8) {
+   if (devinfo->gen >= 8) {
       brw_set_src0(p, insn, brw_imm_d(0x0));
    } else {
       brw_set_src0(p, insn, retype(brw_null_reg(), BRW_REGISTER_TYPE_D));
       brw_set_src1(p, insn, brw_imm_d(0x0)); /* UIP and JIP, updated later. */
    }
 
-   if (p->compressed) {
-      brw_inst_set_exec_size(brw, insn, BRW_EXECUTE_16);
-   } else {
-      brw_inst_set_qtr_control(brw, insn, BRW_COMPRESSION_NONE);
-      brw_inst_set_exec_size(brw, insn, BRW_EXECUTE_8);
-   }
+   brw_inst_set_qtr_control(devinfo, insn, BRW_COMPRESSION_NONE);
+   brw_inst_set_exec_size(devinfo, insn,
+                          brw_inst_exec_size(devinfo, p->current));
    return insn;
 }
 
@@ -1698,11 +1780,11 @@ gen6_HALT(struct brw_compile *p)
  * just points back to the first instruction of the loop.
  */
 brw_inst *
-brw_DO(struct brw_compile *p, unsigned execute_size)
+brw_DO(struct brw_codegen *p, unsigned execute_size)
 {
-   struct brw_context *brw = p->brw;
+   const struct gen_device_info *devinfo = p->devinfo;
 
-   if (brw->gen >= 6 || p->single_program_flow) {
+   if (devinfo->gen >= 6 || p->single_program_flow) {
       push_loop_stack(p, &p->store[p->nr_insn]);
       return &p->store[p->nr_insn];
    } else {
@@ -1716,9 +1798,9 @@ brw_DO(struct brw_compile *p, unsigned execute_size)
       brw_set_src0(p, insn, brw_null_reg());
       brw_set_src1(p, insn, brw_null_reg());
 
-      brw_inst_set_qtr_control(brw, insn, BRW_COMPRESSION_NONE);
-      brw_inst_set_exec_size(brw, insn, execute_size);
-      brw_inst_set_pred_control(brw, insn, BRW_PREDICATE_NONE);
+      brw_inst_set_qtr_control(devinfo, insn, BRW_COMPRESSION_NONE);
+      brw_inst_set_exec_size(devinfo, insn, execute_size);
+      brw_inst_set_pred_control(devinfo, insn, BRW_PREDICATE_NONE);
 
       return insn;
    }
@@ -1732,59 +1814,60 @@ brw_DO(struct brw_compile *p, unsigned execute_size)
  * nesting, since it can always just point to the end of the block/current loop.
  */
 static void
-brw_patch_break_cont(struct brw_compile *p, brw_inst *while_inst)
+brw_patch_break_cont(struct brw_codegen *p, brw_inst *while_inst)
 {
-   struct brw_context *brw = p->brw;
+   const struct gen_device_info *devinfo = p->devinfo;
    brw_inst *do_inst = get_inner_do_insn(p);
    brw_inst *inst;
-   unsigned br = brw_jump_scale(brw);
+   unsigned br = brw_jump_scale(devinfo);
 
-   assert(brw->gen < 6);
+   assert(devinfo->gen < 6);
 
    for (inst = while_inst - 1; inst != do_inst; inst--) {
       /* If the jump count is != 0, that means that this instruction has already
        * been patched because it's part of a loop inside of the one we're
        * patching.
        */
-      if (brw_inst_opcode(brw, inst) == BRW_OPCODE_BREAK &&
-          brw_inst_gen4_jump_count(brw, inst) == 0) {
-         brw_inst_set_gen4_jump_count(brw, inst, br*((while_inst - inst) + 1));
-      } else if (brw_inst_opcode(brw, inst) == BRW_OPCODE_CONTINUE &&
-                 brw_inst_gen4_jump_count(brw, inst) == 0) {
-         brw_inst_set_gen4_jump_count(brw, inst, br * (while_inst - inst));
+      if (brw_inst_opcode(devinfo, inst) == BRW_OPCODE_BREAK &&
+          brw_inst_gen4_jump_count(devinfo, inst) == 0) {
+         brw_inst_set_gen4_jump_count(devinfo, inst, br*((while_inst - inst) + 1));
+      } else if (brw_inst_opcode(devinfo, inst) == BRW_OPCODE_CONTINUE &&
+                 brw_inst_gen4_jump_count(devinfo, inst) == 0) {
+         brw_inst_set_gen4_jump_count(devinfo, inst, br * (while_inst - inst));
       }
    }
 }
 
 brw_inst *
-brw_WHILE(struct brw_compile *p)
+brw_WHILE(struct brw_codegen *p)
 {
-   struct brw_context *brw = p->brw;
+   const struct gen_device_info *devinfo = p->devinfo;
    brw_inst *insn, *do_insn;
-   unsigned br = brw_jump_scale(brw);
+   unsigned br = brw_jump_scale(devinfo);
 
-   if (brw->gen >= 6) {
+   if (devinfo->gen >= 6) {
       insn = next_insn(p, BRW_OPCODE_WHILE);
       do_insn = get_inner_do_insn(p);
 
-      if (brw->gen >= 8) {
+      if (devinfo->gen >= 8) {
          brw_set_dest(p, insn, retype(brw_null_reg(), BRW_REGISTER_TYPE_D));
          brw_set_src0(p, insn, brw_imm_d(0));
-         brw_inst_set_jip(brw, insn, br * (do_insn - insn));
-      } else if (brw->gen == 7) {
+         brw_inst_set_jip(devinfo, insn, br * (do_insn - insn));
+      } else if (devinfo->gen == 7) {
          brw_set_dest(p, insn, retype(brw_null_reg(), BRW_REGISTER_TYPE_D));
          brw_set_src0(p, insn, retype(brw_null_reg(), BRW_REGISTER_TYPE_D));
-         brw_set_src1(p, insn, brw_imm_ud(0));
-         brw_inst_set_jip(brw, insn, br * (do_insn - insn));
+         brw_set_src1(p, insn, brw_imm_w(0));
+         brw_inst_set_jip(devinfo, insn, br * (do_insn - insn));
       } else {
          brw_set_dest(p, insn, brw_imm_w(0));
-         brw_inst_set_gen6_jump_count(brw, insn, br * (do_insn - insn));
+         brw_inst_set_gen6_jump_count(devinfo, insn, br * (do_insn - insn));
          brw_set_src0(p, insn, retype(brw_null_reg(), BRW_REGISTER_TYPE_D));
          brw_set_src1(p, insn, retype(brw_null_reg(), BRW_REGISTER_TYPE_D));
       }
 
-      brw_inst_set_exec_size(brw, insn, p->compressed ? BRW_EXECUTE_16
-                                                      : BRW_EXECUTE_8);
+      brw_inst_set_exec_size(devinfo, insn,
+                             brw_inst_exec_size(devinfo, p->current));
+
    } else {
       if (p->single_program_flow) {
         insn = next_insn(p, BRW_OPCODE_ADD);
@@ -1793,25 +1876,25 @@ brw_WHILE(struct brw_compile *p)
         brw_set_dest(p, insn, brw_ip_reg());
         brw_set_src0(p, insn, brw_ip_reg());
         brw_set_src1(p, insn, brw_imm_d((do_insn - insn) * 16));
-         brw_inst_set_exec_size(brw, insn, BRW_EXECUTE_1);
+         brw_inst_set_exec_size(devinfo, insn, BRW_EXECUTE_1);
       } else {
         insn = next_insn(p, BRW_OPCODE_WHILE);
          do_insn = get_inner_do_insn(p);
 
-         assert(brw_inst_opcode(brw, do_insn) == BRW_OPCODE_DO);
+         assert(brw_inst_opcode(devinfo, do_insn) == BRW_OPCODE_DO);
 
         brw_set_dest(p, insn, brw_ip_reg());
         brw_set_src0(p, insn, brw_ip_reg());
         brw_set_src1(p, insn, brw_imm_d(0));
 
-         brw_inst_set_exec_size(brw, insn, brw_inst_exec_size(brw, do_insn));
-         brw_inst_set_gen4_jump_count(brw, insn, br * (do_insn - insn + 1));
-         brw_inst_set_gen4_pop_count(brw, insn, 0);
+         brw_inst_set_exec_size(devinfo, insn, brw_inst_exec_size(devinfo, do_insn));
+         brw_inst_set_gen4_jump_count(devinfo, insn, br * (do_insn - insn + 1));
+         brw_inst_set_gen4_pop_count(devinfo, insn, 0);
 
         brw_patch_break_cont(p, insn);
       }
    }
-   brw_inst_set_qtr_control(brw, insn, BRW_COMPRESSION_NONE);
+   brw_inst_set_qtr_control(devinfo, insn, BRW_COMPRESSION_NONE);
 
    p->loop_stack_depth--;
 
@@ -1820,19 +1903,19 @@ brw_WHILE(struct brw_compile *p)
 
 /* FORWARD JUMPS:
  */
-void brw_land_fwd_jump(struct brw_compile *p, int jmp_insn_idx)
+void brw_land_fwd_jump(struct brw_codegen *p, int jmp_insn_idx)
 {
-   struct brw_context *brw = p->brw;
+   const struct gen_device_info *devinfo = p->devinfo;
    brw_inst *jmp_insn = &p->store[jmp_insn_idx];
    unsigned jmpi = 1;
 
-   if (brw->gen >= 5)
+   if (devinfo->gen >= 5)
       jmpi = 2;
 
-   assert(brw_inst_opcode(brw, jmp_insn) == BRW_OPCODE_JMPI);
-   assert(brw_inst_src1_reg_file(brw, jmp_insn) == BRW_IMMEDIATE_VALUE);
+   assert(brw_inst_opcode(devinfo, jmp_insn) == BRW_OPCODE_JMPI);
+   assert(brw_inst_src1_reg_file(devinfo, jmp_insn) == BRW_IMMEDIATE_VALUE);
 
-   brw_inst_set_gen4_jump_count(brw, jmp_insn,
+   brw_inst_set_gen4_jump_count(devinfo, jmp_insn,
                                 jmpi * (p->nr_insn - jmp_insn_idx - 1));
 }
 
@@ -1840,16 +1923,16 @@ void brw_land_fwd_jump(struct brw_compile *p, int jmp_insn_idx)
  * instruction should populate the flag register.  It might be simpler
  * just to use the flag reg for most WM tasks?
  */
-void brw_CMP(struct brw_compile *p,
+void brw_CMP(struct brw_codegen *p,
             struct brw_reg dest,
             unsigned conditional,
             struct brw_reg src0,
             struct brw_reg src1)
 {
-   struct brw_context *brw = p->brw;
+   const struct gen_device_info *devinfo = p->devinfo;
    brw_inst *insn = next_insn(p, BRW_OPCODE_CMP);
 
-   brw_inst_set_cond_modifier(brw, insn, conditional);
+   brw_inst_set_cond_modifier(devinfo, insn, conditional);
    brw_set_dest(p, insn, dest);
    brw_set_src0(p, insn, src0);
    brw_set_src1(p, insn, src1);
@@ -1861,10 +1944,10 @@ void brw_CMP(struct brw_compile *p,
     * It also applies to other Gen7 platforms (IVB, BYT) even though it isn't
     * mentioned on their work-arounds pages.
     */
-   if (brw->gen == 7) {
+   if (devinfo->gen == 7) {
       if (dest.file == BRW_ARCHITECTURE_REGISTER_FILE &&
           dest.nr == BRW_ARF_NULL) {
-         brw_inst_set_thread_control(brw, insn, BRW_THREAD_SWITCH);
+         brw_inst_set_thread_control(devinfo, insn, BRW_THREAD_SWITCH);
       }
    }
 }
@@ -1875,14 +1958,14 @@ void brw_CMP(struct brw_compile *p,
 
 /** Extended math function, float[8].
  */
-void gen4_math(struct brw_compile *p,
+void gen4_math(struct brw_codegen *p,
               struct brw_reg dest,
               unsigned function,
               unsigned msg_reg_nr,
               struct brw_reg src,
               unsigned precision )
 {
-   struct brw_context *brw = p->brw;
+   const struct gen_device_info *devinfo = p->devinfo;
    brw_inst *insn = next_insn(p, BRW_OPCODE_SEND);
    unsigned data_type;
    if (has_scalar_region(src)) {
@@ -1891,13 +1974,13 @@ void gen4_math(struct brw_compile *p,
       data_type = BRW_MATH_DATA_VECTOR;
    }
 
-   assert(brw->gen < 6);
+   assert(devinfo->gen < 6);
 
    /* Example code doesn't set predicate_control for send
     * instructions.
     */
-   brw_inst_set_pred_control(brw, insn, 0);
-   brw_inst_set_base_mrf(brw, insn, msg_reg_nr);
+   brw_inst_set_pred_control(devinfo, insn, 0);
+   brw_inst_set_base_mrf(devinfo, insn, msg_reg_nr);
 
    brw_set_dest(p, insn, dest);
    brw_set_src0(p, insn, src);
@@ -1909,24 +1992,24 @@ void gen4_math(struct brw_compile *p,
                         data_type);
 }
 
-void gen6_math(struct brw_compile *p,
+void gen6_math(struct brw_codegen *p,
               struct brw_reg dest,
               unsigned function,
               struct brw_reg src0,
               struct brw_reg src1)
 {
-   struct brw_context *brw = p->brw;
+   const struct gen_device_info *devinfo = p->devinfo;
    brw_inst *insn = next_insn(p, BRW_OPCODE_MATH);
 
-   assert(brw->gen >= 6);
+   assert(devinfo->gen >= 6);
 
    assert(dest.file == BRW_GENERAL_REGISTER_FILE ||
-          (brw->gen >= 7 && dest.file == BRW_MESSAGE_REGISTER_FILE));
+          (devinfo->gen >= 7 && dest.file == BRW_MESSAGE_REGISTER_FILE));
    assert(src0.file == BRW_GENERAL_REGISTER_FILE ||
-          (brw->gen >= 8 && src0.file == BRW_IMMEDIATE_VALUE));
+          (devinfo->gen >= 8 && src0.file == BRW_IMMEDIATE_VALUE));
 
    assert(dest.hstride == BRW_HORIZONTAL_STRIDE_1);
-   if (brw->gen == 6) {
+   if (devinfo->gen == 6) {
       assert(src0.hstride == BRW_HORIZONTAL_STRIDE_1);
       assert(src1.hstride == BRW_HORIZONTAL_STRIDE_1);
    }
@@ -1937,13 +2020,13 @@ void gen6_math(struct brw_compile *p,
       assert(src0.type != BRW_REGISTER_TYPE_F);
       assert(src1.type != BRW_REGISTER_TYPE_F);
       assert(src1.file == BRW_GENERAL_REGISTER_FILE ||
-             (brw->gen >= 8 && src1.file == BRW_IMMEDIATE_VALUE));
+             (devinfo->gen >= 8 && src1.file == BRW_IMMEDIATE_VALUE));
    } else {
       assert(src0.type == BRW_REGISTER_TYPE_F);
       assert(src1.type == BRW_REGISTER_TYPE_F);
       if (function == BRW_MATH_FUNCTION_POW) {
          assert(src1.file == BRW_GENERAL_REGISTER_FILE ||
-                (brw->gen >= 8 && src1.file == BRW_IMMEDIATE_VALUE));
+                (devinfo->gen >= 8 && src1.file == BRW_IMMEDIATE_VALUE));
       } else {
          assert(src1.file == BRW_ARCHITECTURE_REGISTER_FILE &&
                 src1.nr == BRW_ARF_NULL);
@@ -1951,20 +2034,33 @@ void gen6_math(struct brw_compile *p,
    }
 
    /* Source modifiers are ignored for extended math instructions on Gen6. */
-   if (brw->gen == 6) {
+   if (devinfo->gen == 6) {
       assert(!src0.negate);
       assert(!src0.abs);
       assert(!src1.negate);
       assert(!src1.abs);
    }
 
-   brw_inst_set_math_function(brw, insn, function);
+   brw_inst_set_math_function(devinfo, insn, function);
 
    brw_set_dest(p, insn, dest);
    brw_set_src0(p, insn, src0);
    brw_set_src1(p, insn, src1);
 }
 
+/**
+ * Return the right surface index to access the thread scratch space using
+ * stateless dataport messages.
+ */
+unsigned
+brw_scratch_surface_idx(const struct brw_codegen *p)
+{
+   /* The scratch space is thread-local so IA coherency is unnecessary. */
+   if (p->devinfo->gen >= 8)
+      return GEN8_BTI_STATELESS_NON_COHERENT;
+   else
+      return BRW_BTI_STATELESS;
+}
 
 /**
  * Write a block of OWORDs (half a GRF each) from the scratch buffer,
@@ -1973,27 +2069,25 @@ void gen6_math(struct brw_compile *p,
  * The offset must be aligned to oword size (16 bytes).  Used for
  * register spilling.
  */
-void brw_oword_block_write_scratch(struct brw_compile *p,
+void brw_oword_block_write_scratch(struct brw_codegen *p,
                                   struct brw_reg mrf,
                                   int num_regs,
                                   unsigned offset)
 {
-   struct brw_context *brw = p->brw;
-   uint32_t msg_control, msg_type;
-   int mlen;
+   const struct gen_device_info *devinfo = p->devinfo;
+   uint32_t msg_type;
 
-   if (brw->gen >= 6)
+   if (devinfo->gen >= 6)
       offset /= 16;
 
    mrf = retype(mrf, BRW_REGISTER_TYPE_UD);
 
-   if (num_regs == 1) {
-      msg_control = BRW_DATAPORT_OWORD_BLOCK_2_OWORDS;
-      mlen = 2;
-   } else {
-      msg_control = BRW_DATAPORT_OWORD_BLOCK_4_OWORDS;
-      mlen = 3;
-   }
+   const unsigned mlen = 1 + num_regs;
+   const unsigned msg_control =
+      (num_regs == 1 ? BRW_DATAPORT_OWORD_BLOCK_2_OWORDS :
+       num_regs == 2 ? BRW_DATAPORT_OWORD_BLOCK_4_OWORDS :
+       num_regs == 4 ? BRW_DATAPORT_OWORD_BLOCK_8_OWORDS : 0);
+   assert(msg_control);
 
    /* Set up the message header.  This is g0, with g0.2 filled with
     * the offset.  We don't want to leave our offset around in g0 or
@@ -2002,6 +2096,7 @@ void brw_oword_block_write_scratch(struct brw_compile *p,
     */
    {
       brw_push_insn_state(p);
+      brw_set_default_exec_size(p, BRW_EXECUTE_8);
       brw_set_default_mask_control(p, BRW_MASK_DISABLE);
       brw_set_default_compression_control(p, BRW_COMPRESSION_NONE);
 
@@ -2024,13 +2119,14 @@ void brw_oword_block_write_scratch(struct brw_compile *p,
       struct brw_reg src_header = retype(brw_vec8_grf(0, 0),
                                         BRW_REGISTER_TYPE_UW);
 
-      if (brw_inst_qtr_control(brw, insn) != BRW_COMPRESSION_NONE) {
-         brw_inst_set_qtr_control(brw, insn, BRW_COMPRESSION_NONE);
+      brw_inst_set_compression(devinfo, insn, false);
+
+      if (brw_inst_exec_size(devinfo, insn) >= 16)
         src_header = vec16(src_header);
-      }
-      assert(brw_inst_pred_control(brw, insn) == BRW_PREDICATE_NONE);
-      if (brw->gen < 6)
-         brw_inst_set_base_mrf(brw, insn, mrf.nr);
+
+      assert(brw_inst_pred_control(devinfo, insn) == BRW_PREDICATE_NONE);
+      if (devinfo->gen < 6)
+         brw_inst_set_base_mrf(devinfo, insn, mrf.nr);
 
       /* Until gen6, writes followed by reads from the same location
        * are not guaranteed to be ordered unless write_commit is set.
@@ -2042,7 +2138,7 @@ void brw_oword_block_write_scratch(struct brw_compile *p,
        * protection.  Our use of DP writes is all about register
        * spilling within a thread.
        */
-      if (brw->gen >= 6) {
+      if (devinfo->gen >= 6) {
         dest = retype(vec16(brw_null_reg()), BRW_REGISTER_TYPE_UW);
         send_commit_msg = 0;
       } else {
@@ -2051,20 +2147,20 @@ void brw_oword_block_write_scratch(struct brw_compile *p,
       }
 
       brw_set_dest(p, insn, dest);
-      if (brw->gen >= 6) {
+      if (devinfo->gen >= 6) {
         brw_set_src0(p, insn, mrf);
       } else {
         brw_set_src0(p, insn, brw_null_reg());
       }
 
-      if (brw->gen >= 6)
+      if (devinfo->gen >= 6)
         msg_type = GEN6_DATAPORT_WRITE_MESSAGE_OWORD_BLOCK_WRITE;
       else
         msg_type = BRW_DATAPORT_WRITE_MESSAGE_OWORD_BLOCK_WRITE;
 
       brw_set_dp_write_message(p,
                               insn,
-                              255, /* binding table index (255=stateless) */
+                               brw_scratch_surface_idx(p),
                               msg_control,
                               msg_type,
                               mlen,
@@ -2085,20 +2181,18 @@ void brw_oword_block_write_scratch(struct brw_compile *p,
  * spilling.
  */
 void
-brw_oword_block_read_scratch(struct brw_compile *p,
+brw_oword_block_read_scratch(struct brw_codegen *p,
                             struct brw_reg dest,
                             struct brw_reg mrf,
                             int num_regs,
                             unsigned offset)
 {
-   struct brw_context *brw = p->brw;
-   uint32_t msg_control;
-   int rlen;
+   const struct gen_device_info *devinfo = p->devinfo;
 
-   if (brw->gen >= 6)
+   if (devinfo->gen >= 6)
       offset /= 16;
 
-   if (p->brw->gen >= 7) {
+   if (p->devinfo->gen >= 7) {
       /* On gen 7 and above, we no longer have message registers and we can
        * send from any register we want.  By using the destination register
        * for the message, we guarantee that the implied message write won't
@@ -2112,16 +2206,19 @@ brw_oword_block_read_scratch(struct brw_compile *p,
    }
    dest = retype(dest, BRW_REGISTER_TYPE_UW);
 
-   if (num_regs == 1) {
-      msg_control = BRW_DATAPORT_OWORD_BLOCK_2_OWORDS;
-      rlen = 1;
-   } else {
-      msg_control = BRW_DATAPORT_OWORD_BLOCK_4_OWORDS;
-      rlen = 2;
-   }
+   const unsigned rlen = num_regs;
+   const unsigned msg_control =
+      (num_regs == 1 ? BRW_DATAPORT_OWORD_BLOCK_2_OWORDS :
+       num_regs == 2 ? BRW_DATAPORT_OWORD_BLOCK_4_OWORDS :
+       num_regs == 4 ? BRW_DATAPORT_OWORD_BLOCK_8_OWORDS : 0);
+   assert(msg_control);
+   const unsigned target_cache = devinfo->gen >= 7 ?
+      BRW_DATAPORT_READ_TARGET_DATA_CACHE :
+      BRW_DATAPORT_READ_TARGET_RENDER_CACHE;
 
    {
       brw_push_insn_state(p);
+      brw_set_default_exec_size(p, BRW_EXECUTE_8);
       brw_set_default_compression_control(p, BRW_COMPRESSION_NONE);
       brw_set_default_mask_control(p, BRW_MASK_DISABLE);
 
@@ -2136,23 +2233,23 @@ brw_oword_block_read_scratch(struct brw_compile *p,
    {
       brw_inst *insn = next_insn(p, BRW_OPCODE_SEND);
 
-      assert(brw_inst_pred_control(brw, insn) == 0);
-      brw_inst_set_qtr_control(brw, insn, BRW_COMPRESSION_NONE);
+      assert(brw_inst_pred_control(devinfo, insn) == 0);
+      brw_inst_set_compression(devinfo, insn, false);
 
       brw_set_dest(p, insn, dest);     /* UW? */
-      if (brw->gen >= 6) {
+      if (devinfo->gen >= 6) {
         brw_set_src0(p, insn, mrf);
       } else {
         brw_set_src0(p, insn, brw_null_reg());
-         brw_inst_set_base_mrf(brw, insn, mrf.nr);
+         brw_inst_set_base_mrf(devinfo, insn, mrf.nr);
       }
 
       brw_set_dp_read_message(p,
                              insn,
-                             255, /* binding table index (255=stateless) */
+                              brw_scratch_surface_idx(p),
                              msg_control,
                              BRW_DATAPORT_READ_MESSAGE_OWORD_BLOCK_READ, /* msg_type */
-                             BRW_DATAPORT_READ_TARGET_RENDER_CACHE,
+                             target_cache,
                              1, /* msg_length */
                               true, /* header_present */
                              rlen);
@@ -2160,16 +2257,15 @@ brw_oword_block_read_scratch(struct brw_compile *p,
 }
 
 void
-gen7_block_read_scratch(struct brw_compile *p,
+gen7_block_read_scratch(struct brw_codegen *p,
                         struct brw_reg dest,
                         int num_regs,
                         unsigned offset)
 {
-   const struct brw_context *brw = p->brw;
+   const struct gen_device_info *devinfo = p->devinfo;
    brw_inst *insn = next_insn(p, BRW_OPCODE_SEND);
-   assert(brw_inst_pred_control(brw, insn) == BRW_PREDICATE_NONE);
+   assert(brw_inst_pred_control(devinfo, insn) == BRW_PREDICATE_NONE);
 
-   brw_inst_set_qtr_control(brw, insn, BRW_COMPRESSION_NONE);
    brw_set_dest(p, insn, retype(dest, BRW_REGISTER_TYPE_UW));
 
    /* The HW requires that the header is present; this is to get the g0.5
@@ -2200,21 +2296,22 @@ gen7_block_read_scratch(struct brw_compile *p,
  * Location (in buffer) should be a multiple of 16.
  * Used for fetching shader constants.
  */
-void brw_oword_block_read(struct brw_compile *p,
+void brw_oword_block_read(struct brw_codegen *p,
                          struct brw_reg dest,
                          struct brw_reg mrf,
                          uint32_t offset,
                          uint32_t bind_table_index)
 {
-   struct brw_context *brw = p->brw;
+   const struct gen_device_info *devinfo = p->devinfo;
 
    /* On newer hardware, offset is in units of owords. */
-   if (brw->gen >= 6)
+   if (devinfo->gen >= 6)
       offset /= 16;
 
    mrf = retype(mrf, BRW_REGISTER_TYPE_UD);
 
    brw_push_insn_state(p);
+   brw_set_default_exec_size(p, BRW_EXECUTE_8);
    brw_set_default_predicate_control(p, BRW_PREDICATE_NONE);
    brw_set_default_compression_control(p, BRW_COMPRESSION_NONE);
    brw_set_default_mask_control(p, BRW_MASK_DISABLE);
@@ -2234,11 +2331,11 @@ void brw_oword_block_read(struct brw_compile *p,
    dest = retype(vec8(dest), BRW_REGISTER_TYPE_UW);
 
    brw_set_dest(p, insn, dest);
-   if (brw->gen >= 6) {
+   if (devinfo->gen >= 6) {
       brw_set_src0(p, insn, mrf);
    } else {
       brw_set_src0(p, insn, brw_null_reg());
-      brw_inst_set_base_mrf(brw, insn, mrf.nr);
+      brw_inst_set_base_mrf(devinfo, insn, mrf.nr);
    }
 
    brw_set_dp_read_message(p,
@@ -2255,8 +2352,7 @@ void brw_oword_block_read(struct brw_compile *p,
 }
 
 
-void brw_fb_WRITE(struct brw_compile *p,
-                 int dispatch_width,
+void brw_fb_WRITE(struct brw_codegen *p,
                   struct brw_reg payload,
                   struct brw_reg implied_header,
                   unsigned msg_control,
@@ -2264,33 +2360,34 @@ void brw_fb_WRITE(struct brw_compile *p,
                   unsigned msg_length,
                   unsigned response_length,
                   bool eot,
+                  bool last_render_target,
                   bool header_present)
 {
-   struct brw_context *brw = p->brw;
+   const struct gen_device_info *devinfo = p->devinfo;
    brw_inst *insn;
    unsigned msg_type;
    struct brw_reg dest, src0;
 
-   if (dispatch_width == 16)
+   if (brw_inst_exec_size(devinfo, p->current) >= BRW_EXECUTE_16)
       dest = retype(vec16(brw_null_reg()), BRW_REGISTER_TYPE_UW);
    else
       dest = retype(vec8(brw_null_reg()), BRW_REGISTER_TYPE_UW);
 
-   if (brw->gen >= 6) {
+   if (devinfo->gen >= 6) {
       insn = next_insn(p, BRW_OPCODE_SENDC);
    } else {
       insn = next_insn(p, BRW_OPCODE_SEND);
    }
-   brw_inst_set_qtr_control(brw, insn, BRW_COMPRESSION_NONE);
+   brw_inst_set_compression(devinfo, insn, false);
 
-   if (brw->gen >= 6) {
+   if (devinfo->gen >= 6) {
       /* headerless version, just submit color payload */
       src0 = payload;
 
       msg_type = GEN6_DATAPORT_WRITE_MESSAGE_RENDER_TARGET_WRITE;
    } else {
       assert(payload.file == BRW_MESSAGE_REGISTER_FILE);
-      brw_inst_set_base_mrf(brw, insn, payload.nr);
+      brw_inst_set_base_mrf(devinfo, insn, payload.nr);
       src0 = implied_header;
 
       msg_type = BRW_DATAPORT_WRITE_MESSAGE_RENDER_TARGET_WRITE;
@@ -2305,19 +2402,47 @@ void brw_fb_WRITE(struct brw_compile *p,
                            msg_type,
                            msg_length,
                            header_present,
-                           eot, /* last render target write */
+                           last_render_target,
                            response_length,
                            eot,
                            0 /* send_commit_msg */);
 }
 
+brw_inst *
+gen9_fb_READ(struct brw_codegen *p,
+             struct brw_reg dst,
+             struct brw_reg payload,
+             unsigned binding_table_index,
+             unsigned msg_length,
+             unsigned response_length,
+             bool per_sample)
+{
+   const struct gen_device_info *devinfo = p->devinfo;
+   assert(devinfo->gen >= 9);
+   const unsigned msg_subtype =
+      brw_inst_exec_size(devinfo, p->current) == BRW_EXECUTE_16 ? 0 : 1;
+   brw_inst *insn = next_insn(p, BRW_OPCODE_SENDC);
+
+   brw_set_dest(p, insn, dst);
+   brw_set_src0(p, insn, payload);
+   brw_set_dp_read_message(p, insn, binding_table_index,
+                           per_sample << 5 | msg_subtype,
+                           GEN9_DATAPORT_RC_RENDER_TARGET_READ,
+                           BRW_DATAPORT_READ_TARGET_RENDER_CACHE,
+                           msg_length, true /* header_present */,
+                           response_length);
+   brw_inst_set_rt_slot_group(devinfo, insn,
+                              brw_inst_qtr_control(devinfo, p->current) / 2);
+
+   return insn;
+}
 
 /**
  * Texture sample instruction.
  * Note: the msg_type plus msg_length values determine exactly what kind
  * of sampling operation is performed.  See volume 4, page 161 of docs.
  */
-void brw_SAMPLE(struct brw_compile *p,
+void brw_SAMPLE(struct brw_codegen *p,
                struct brw_reg dest,
                unsigned msg_reg_nr,
                struct brw_reg src0,
@@ -2330,14 +2455,14 @@ void brw_SAMPLE(struct brw_compile *p,
                unsigned simd_mode,
                unsigned return_format)
 {
-   struct brw_context *brw = p->brw;
+   const struct gen_device_info *devinfo = p->devinfo;
    brw_inst *insn;
 
    if (msg_reg_nr != -1)
       gen6_resolve_implied_move(p, &src0, msg_reg_nr);
 
    insn = next_insn(p, BRW_OPCODE_SEND);
-   brw_inst_set_pred_control(brw, insn, BRW_PREDICATE_NONE); /* XXX */
+   brw_inst_set_pred_control(devinfo, insn, BRW_PREDICATE_NONE); /* XXX */
 
    /* From the 965 PRM (volume 4, part 1, section 14.2.41):
     *
@@ -2351,11 +2476,10 @@ void brw_SAMPLE(struct brw_compile *p,
     * are allowed in SIMD16 mode and they could not work without SecHalf.  For
     * these reasons, we allow BRW_COMPRESSION_2NDHALF here.
     */
-   if (brw_inst_qtr_control(brw, insn) != BRW_COMPRESSION_2NDHALF)
-      brw_inst_set_qtr_control(brw, insn, BRW_COMPRESSION_NONE);
+   brw_inst_set_compression(devinfo, insn, false);
 
-   if (brw->gen < 6)
-      brw_inst_set_base_mrf(brw, insn, msg_reg_nr);
+   if (devinfo->gen < 6)
+      brw_inst_set_base_mrf(devinfo, insn, msg_reg_nr);
 
    brw_set_dest(p, insn, dest);
    brw_set_src0(p, insn, src0);
@@ -2373,7 +2497,7 @@ void brw_SAMPLE(struct brw_compile *p,
 /* Adjust the message header's sampler state pointer to
  * select the correct group of 16 samplers.
  */
-void brw_adjust_sampler_state_pointer(struct brw_compile *p,
+void brw_adjust_sampler_state_pointer(struct brw_codegen *p,
                                       struct brw_reg header,
                                       struct brw_reg sampler_index)
 {
@@ -2386,14 +2510,14 @@ void brw_adjust_sampler_state_pointer(struct brw_compile *p,
     * exclusively use the offset - we have to use both.
     */
 
-   struct brw_context *brw = p->brw;
+   const struct gen_device_info *devinfo = p->devinfo;
 
    if (sampler_index.file == BRW_IMMEDIATE_VALUE) {
       const int sampler_state_size = 16; /* 16 bytes */
-      uint32_t sampler = sampler_index.dw1.ud;
+      uint32_t sampler = sampler_index.ud;
 
       if (sampler >= 16) {
-         assert(brw->is_haswell || brw->gen >= 8);
+         assert(devinfo->is_haswell || devinfo->gen >= 8);
          brw_ADD(p,
                  get_element_ud(header, 3),
                  get_element_ud(brw_vec8_grf(0, 0), 3),
@@ -2401,7 +2525,7 @@ void brw_adjust_sampler_state_pointer(struct brw_compile *p,
       }
    } else {
       /* Non-const sampler array indexing case */
-      if (brw->gen < 8 && !brw->is_haswell) {
+      if (devinfo->gen < 8 && !devinfo->is_haswell) {
          return;
       }
 
@@ -2420,7 +2544,7 @@ void brw_adjust_sampler_state_pointer(struct brw_compile *p,
  * using bitmasks and macros for this, in the old style.  Or perhaps
  * just having the caller instantiate the fields in dword3 itself.
  */
-void brw_urb_WRITE(struct brw_compile *p,
+void brw_urb_WRITE(struct brw_codegen *p,
                   struct brw_reg dest,
                   unsigned msg_reg_nr,
                   struct brw_reg src0,
@@ -2430,12 +2554,12 @@ void brw_urb_WRITE(struct brw_compile *p,
                   unsigned offset,
                   unsigned swizzle)
 {
-   struct brw_context *brw = p->brw;
+   const struct gen_device_info *devinfo = p->devinfo;
    brw_inst *insn;
 
    gen6_resolve_implied_move(p, &src0, msg_reg_nr);
 
-   if (brw->gen >= 7 && !(flags & BRW_URB_WRITE_USE_CHANNEL_MASKS)) {
+   if (devinfo->gen >= 7 && !(flags & BRW_URB_WRITE_USE_CHANNEL_MASKS)) {
       /* Enable Channel Masks in the URB_WRITE_HWORD message header */
       brw_push_insn_state(p);
       brw_set_default_access_mode(p, BRW_ALIGN_1);
@@ -2449,14 +2573,14 @@ void brw_urb_WRITE(struct brw_compile *p,
 
    insn = next_insn(p, BRW_OPCODE_SEND);
 
-   assert(msg_length < BRW_MAX_MRF);
+   assert(msg_length < BRW_MAX_MRF(devinfo->gen));
 
    brw_set_dest(p, insn, dest);
    brw_set_src0(p, insn, src0);
    brw_set_src1(p, insn, brw_imm_d(0));
 
-   if (brw->gen < 6)
-      brw_inst_set_base_mrf(brw, insn, msg_reg_nr);
+   if (devinfo->gen < 6)
+      brw_inst_set_base_mrf(devinfo, insn, msg_reg_nr);
 
    brw_set_urb_message(p,
                       insn,
@@ -2467,24 +2591,150 @@ void brw_urb_WRITE(struct brw_compile *p,
                       swizzle);
 }
 
+struct brw_inst *
+brw_send_indirect_message(struct brw_codegen *p,
+                          unsigned sfid,
+                          struct brw_reg dst,
+                          struct brw_reg payload,
+                          struct brw_reg desc)
+{
+   const struct gen_device_info *devinfo = p->devinfo;
+   struct brw_inst *send;
+   int setup;
+
+   dst = retype(dst, BRW_REGISTER_TYPE_UW);
+
+   assert(desc.type == BRW_REGISTER_TYPE_UD);
+
+   /* We hold on to the setup instruction (the SEND in the direct case, the OR
+    * in the indirect case) by its index in the instruction store.  The
+    * pointer returned by next_insn() may become invalid if emitting the SEND
+    * in the indirect case reallocs the store.
+    */
+
+   if (desc.file == BRW_IMMEDIATE_VALUE) {
+      setup = p->nr_insn;
+      send = next_insn(p, BRW_OPCODE_SEND);
+      brw_set_src1(p, send, desc);
+
+   } else {
+      struct brw_reg addr = retype(brw_address_reg(0), BRW_REGISTER_TYPE_UD);
+
+      brw_push_insn_state(p);
+      brw_set_default_access_mode(p, BRW_ALIGN_1);
+      brw_set_default_mask_control(p, BRW_MASK_DISABLE);
+      brw_set_default_predicate_control(p, BRW_PREDICATE_NONE);
+
+      /* Load the indirect descriptor to an address register using OR so the
+       * caller can specify additional descriptor bits with the usual
+       * brw_set_*_message() helper functions.
+       */
+      setup = p->nr_insn;
+      brw_OR(p, addr, desc, brw_imm_ud(0));
+
+      brw_pop_insn_state(p);
+
+      send = next_insn(p, BRW_OPCODE_SEND);
+      brw_set_src1(p, send, addr);
+   }
+
+   if (dst.width < BRW_EXECUTE_8)
+      brw_inst_set_exec_size(devinfo, send, dst.width);
+
+   brw_set_dest(p, send, dst);
+   brw_set_src0(p, send, retype(payload, BRW_REGISTER_TYPE_UD));
+   brw_inst_set_sfid(devinfo, send, sfid);
+
+   return &p->store[setup];
+}
+
+static struct brw_inst *
+brw_send_indirect_surface_message(struct brw_codegen *p,
+                                  unsigned sfid,
+                                  struct brw_reg dst,
+                                  struct brw_reg payload,
+                                  struct brw_reg surface,
+                                  unsigned message_len,
+                                  unsigned response_len,
+                                  bool header_present)
+{
+   const struct gen_device_info *devinfo = p->devinfo;
+   struct brw_inst *insn;
+
+   if (surface.file != BRW_IMMEDIATE_VALUE) {
+      struct brw_reg addr = retype(brw_address_reg(0), BRW_REGISTER_TYPE_UD);
+
+      brw_push_insn_state(p);
+      brw_set_default_access_mode(p, BRW_ALIGN_1);
+      brw_set_default_mask_control(p, BRW_MASK_DISABLE);
+      brw_set_default_predicate_control(p, BRW_PREDICATE_NONE);
+
+      /* Mask out invalid bits from the surface index to avoid hangs e.g. when
+       * some surface array is accessed out of bounds.
+       */
+      insn = brw_AND(p, addr,
+                     suboffset(vec1(retype(surface, BRW_REGISTER_TYPE_UD)),
+                               BRW_GET_SWZ(surface.swizzle, 0)),
+                     brw_imm_ud(0xff));
+
+      brw_pop_insn_state(p);
+
+      surface = addr;
+   }
+
+   insn = brw_send_indirect_message(p, sfid, dst, payload, surface);
+   brw_inst_set_mlen(devinfo, insn, message_len);
+   brw_inst_set_rlen(devinfo, insn, response_len);
+   brw_inst_set_header_present(devinfo, insn, header_present);
+
+   return insn;
+}
+
+static bool
+while_jumps_before_offset(const struct gen_device_info *devinfo,
+                          brw_inst *insn, int while_offset, int start_offset)
+{
+   int scale = 16 / brw_jump_scale(devinfo);
+   int jip = devinfo->gen == 6 ? brw_inst_gen6_jump_count(devinfo, insn)
+                               : brw_inst_jip(devinfo, insn);
+   return while_offset + jip * scale <= start_offset;
+}
+
+
 static int
-brw_find_next_block_end(struct brw_compile *p, int start_offset)
+brw_find_next_block_end(struct brw_codegen *p, int start_offset)
 {
    int offset;
    void *store = p->store;
-   const struct brw_context *brw = p->brw;
+   const struct gen_device_info *devinfo = p->devinfo;
 
-   for (offset = next_offset(brw, store, start_offset);
+   int depth = 0;
+
+   for (offset = next_offset(devinfo, store, start_offset);
         offset < p->next_insn_offset;
-        offset = next_offset(brw, store, offset)) {
+        offset = next_offset(devinfo, store, offset)) {
       brw_inst *insn = store + offset;
 
-      switch (brw_inst_opcode(brw, insn)) {
+      switch (brw_inst_opcode(devinfo, insn)) {
+      case BRW_OPCODE_IF:
+         depth++;
+         break;
       case BRW_OPCODE_ENDIF:
-      case BRW_OPCODE_ELSE:
+         if (depth == 0)
+            return offset;
+         depth--;
+         break;
       case BRW_OPCODE_WHILE:
+         /* If the while doesn't jump before our instruction, it's the end
+          * of a sibling do...while loop.  Ignore it.
+          */
+         if (!while_jumps_before_offset(devinfo, insn, offset, start_offset))
+            continue;
+         /* fallthrough */
+      case BRW_OPCODE_ELSE:
       case BRW_OPCODE_HALT:
-        return offset;
+         if (depth == 0)
+            return offset;
       }
    }
 
@@ -2496,27 +2746,24 @@ brw_find_next_block_end(struct brw_compile *p, int start_offset)
  * instruction.
  */
 static int
-brw_find_loop_end(struct brw_compile *p, int start_offset)
+brw_find_loop_end(struct brw_codegen *p, int start_offset)
 {
-   struct brw_context *brw = p->brw;
+   const struct gen_device_info *devinfo = p->devinfo;
    int offset;
-   int scale = 16 / brw_jump_scale(brw);
    void *store = p->store;
 
-   assert(brw->gen >= 6);
+   assert(devinfo->gen >= 6);
 
    /* Always start after the instruction (such as a WHILE) we're trying to fix
     * up.
     */
-   for (offset = next_offset(brw, store, start_offset);
+   for (offset = next_offset(devinfo, store, start_offset);
         offset < p->next_insn_offset;
-        offset = next_offset(brw, store, offset)) {
+        offset = next_offset(devinfo, store, offset)) {
       brw_inst *insn = store + offset;
 
-      if (brw_inst_opcode(brw, insn) == BRW_OPCODE_WHILE) {
-         int jip = brw->gen == 6 ? brw_inst_gen6_jump_count(brw, insn)
-                                 : brw_inst_jip(brw, insn);
-        if (offset + jip * scale <= start_offset)
+      if (brw_inst_opcode(devinfo, insn) == BRW_OPCODE_WHILE) {
+        if (while_jumps_before_offset(devinfo, insn, offset, start_offset))
            return offset;
       }
    }
@@ -2528,56 +2775,48 @@ brw_find_loop_end(struct brw_compile *p, int start_offset)
  * BREAK, CONT, and HALT instructions to their correct locations.
  */
 void
-brw_set_uip_jip(struct brw_compile *p)
+brw_set_uip_jip(struct brw_codegen *p, int start_offset)
 {
-   struct brw_context *brw = p->brw;
+   const struct gen_device_info *devinfo = p->devinfo;
    int offset;
-   int br = brw_jump_scale(brw);
+   int br = brw_jump_scale(devinfo);
    int scale = 16 / br;
    void *store = p->store;
 
-   if (brw->gen < 6)
+   if (devinfo->gen < 6)
       return;
 
-   for (offset = 0; offset < p->next_insn_offset;
-        offset = next_offset(brw, store, offset)) {
+   for (offset = start_offset; offset < p->next_insn_offset; offset += 16) {
       brw_inst *insn = store + offset;
-
-      if (brw_inst_cmpt_control(brw, insn)) {
-        /* Fixups for compacted BREAK/CONTINUE not supported yet. */
-         assert(brw_inst_opcode(brw, insn) != BRW_OPCODE_BREAK &&
-                brw_inst_opcode(brw, insn) != BRW_OPCODE_CONTINUE &&
-                brw_inst_opcode(brw, insn) != BRW_OPCODE_HALT);
-        continue;
-      }
+      assert(brw_inst_cmpt_control(devinfo, insn) == 0);
 
       int block_end_offset = brw_find_next_block_end(p, offset);
-      switch (brw_inst_opcode(brw, insn)) {
+      switch (brw_inst_opcode(devinfo, insn)) {
       case BRW_OPCODE_BREAK:
          assert(block_end_offset != 0);
-         brw_inst_set_jip(brw, insn, (block_end_offset - offset) / scale);
+         brw_inst_set_jip(devinfo, insn, (block_end_offset - offset) / scale);
         /* Gen7 UIP points to WHILE; Gen6 points just after it */
-         brw_inst_set_uip(brw, insn,
+         brw_inst_set_uip(devinfo, insn,
            (brw_find_loop_end(p, offset) - offset +
-             (brw->gen == 6 ? 16 : 0)) / scale);
+             (devinfo->gen == 6 ? 16 : 0)) / scale);
         break;
       case BRW_OPCODE_CONTINUE:
          assert(block_end_offset != 0);
-         brw_inst_set_jip(brw, insn, (block_end_offset - offset) / scale);
-         brw_inst_set_uip(brw, insn,
+         brw_inst_set_jip(devinfo, insn, (block_end_offset - offset) / scale);
+         brw_inst_set_uip(devinfo, insn,
             (brw_find_loop_end(p, offset) - offset) / scale);
 
-         assert(brw_inst_uip(brw, insn) != 0);
-         assert(brw_inst_jip(brw, insn) != 0);
+         assert(brw_inst_uip(devinfo, insn) != 0);
+         assert(brw_inst_jip(devinfo, insn) != 0);
         break;
 
       case BRW_OPCODE_ENDIF: {
          int32_t jump = (block_end_offset == 0) ?
                         1 * br : (block_end_offset - offset) / scale;
-         if (brw->gen >= 7)
-            brw_inst_set_jip(brw, insn, jump);
+         if (devinfo->gen >= 7)
+            brw_inst_set_jip(devinfo, insn, jump);
          else
-            brw_inst_set_gen6_jump_count(brw, insn, jump);
+            brw_inst_set_gen6_jump_count(devinfo, insn, jump);
         break;
       }
 
@@ -2594,18 +2833,18 @@ brw_set_uip_jip(struct brw_compile *p)
          * instruction.
          */
         if (block_end_offset == 0) {
-            brw_inst_set_jip(brw, insn, brw_inst_uip(brw, insn));
+            brw_inst_set_jip(devinfo, insn, brw_inst_uip(devinfo, insn));
         } else {
-            brw_inst_set_jip(brw, insn, (block_end_offset - offset) / scale);
+            brw_inst_set_jip(devinfo, insn, (block_end_offset - offset) / scale);
         }
-         assert(brw_inst_uip(brw, insn) != 0);
-         assert(brw_inst_jip(brw, insn) != 0);
+         assert(brw_inst_uip(devinfo, insn) != 0);
+         assert(brw_inst_jip(devinfo, insn) != 0);
         break;
       }
    }
 }
 
-void brw_ff_sync(struct brw_compile *p,
+void brw_ff_sync(struct brw_codegen *p,
                   struct brw_reg dest,
                   unsigned msg_reg_nr,
                   struct brw_reg src0,
@@ -2613,7 +2852,7 @@ void brw_ff_sync(struct brw_compile *p,
                   unsigned response_length,
                   bool eot)
 {
-   struct brw_context *brw = p->brw;
+   const struct gen_device_info *devinfo = p->devinfo;
    brw_inst *insn;
 
    gen6_resolve_implied_move(p, &src0, msg_reg_nr);
@@ -2623,8 +2862,8 @@ void brw_ff_sync(struct brw_compile *p,
    brw_set_src0(p, insn, src0);
    brw_set_src1(p, insn, brw_imm_d(0));
 
-   if (brw->gen < 6)
-      brw_inst_set_base_mrf(brw, insn, msg_reg_nr);
+   if (devinfo->gen < 6)
+      brw_inst_set_base_mrf(devinfo, insn, msg_reg_nr);
 
    brw_set_ff_sync_message(p,
                           insn,
@@ -2645,7 +2884,7 @@ void brw_ff_sync(struct brw_compile *p,
  *   writes are complete by sending the final write as a committed write."
  */
 void
-brw_svb_write(struct brw_compile *p,
+brw_svb_write(struct brw_codegen *p,
               struct brw_reg dest,
               unsigned msg_reg_nr,
               struct brw_reg src0,
@@ -2672,158 +2911,644 @@ brw_svb_write(struct brw_compile *p,
                             send_commit_msg); /* send_commit_msg */
 }
 
+static unsigned
+brw_surface_payload_size(struct brw_codegen *p,
+                         unsigned num_channels,
+                         bool has_simd4x2,
+                         bool has_simd16)
+{
+   if (has_simd4x2 &&
+       brw_inst_access_mode(p->devinfo, p->current) == BRW_ALIGN_16)
+      return 1;
+   else if (has_simd16 &&
+            brw_inst_exec_size(p->devinfo, p->current) == BRW_EXECUTE_16)
+      return 2 * num_channels;
+   else
+      return num_channels;
+}
+
 static void
-brw_set_dp_untyped_atomic_message(struct brw_compile *p,
+brw_set_dp_untyped_atomic_message(struct brw_codegen *p,
                                   brw_inst *insn,
                                   unsigned atomic_op,
-                                  unsigned bind_table_index,
-                                  unsigned msg_length,
-                                  unsigned response_length,
-                                  bool header_present)
+                                  bool response_expected)
 {
-   const struct brw_context *brw = p->brw;
-
+   const struct gen_device_info *devinfo = p->devinfo;
    unsigned msg_control =
       atomic_op | /* Atomic Operation Type: BRW_AOP_* */
-      (response_length ? 1 << 5 : 0); /* Return data expected */
-
-   if (brw->gen >= 8 || brw->is_haswell) {
-      brw_set_message_descriptor(p, insn, HSW_SFID_DATAPORT_DATA_CACHE_1,
-                                 msg_length, response_length,
-                                 header_present, false);
+      (response_expected ? 1 << 5 : 0); /* Return data expected */
 
-
-      if (brw_inst_access_mode(brw, insn) == BRW_ALIGN_1) {
-         if (brw_inst_exec_size(brw, insn) != BRW_EXECUTE_16)
+   if (devinfo->gen >= 8 || devinfo->is_haswell) {
+      if (brw_inst_access_mode(devinfo, p->current) == BRW_ALIGN_1) {
+         if (brw_inst_exec_size(devinfo, p->current) != BRW_EXECUTE_16)
             msg_control |= 1 << 4; /* SIMD8 mode */
 
-         brw_inst_set_dp_msg_type(brw, insn,
+         brw_inst_set_dp_msg_type(devinfo, insn,
                                   HSW_DATAPORT_DC_PORT1_UNTYPED_ATOMIC_OP);
       } else {
-         brw_inst_set_dp_msg_type(brw, insn,
+         brw_inst_set_dp_msg_type(devinfo, insn,
             HSW_DATAPORT_DC_PORT1_UNTYPED_ATOMIC_OP_SIMD4X2);
       }
    } else {
-      brw_set_message_descriptor(p, insn, GEN7_SFID_DATAPORT_DATA_CACHE,
-                                 msg_length, response_length,
-                                 header_present, false);
-
-      brw_inst_set_dp_msg_type(brw, insn, GEN7_DATAPORT_DC_UNTYPED_ATOMIC_OP);
+      brw_inst_set_dp_msg_type(devinfo, insn,
+                               GEN7_DATAPORT_DC_UNTYPED_ATOMIC_OP);
 
-      if (brw_inst_exec_size(brw, insn) != BRW_EXECUTE_16)
+      if (brw_inst_exec_size(devinfo, p->current) != BRW_EXECUTE_16)
          msg_control |= 1 << 4; /* SIMD8 mode */
    }
 
-   brw_inst_set_binding_table_index(brw, insn, bind_table_index);
-   brw_inst_set_dp_msg_control(brw, insn, msg_control);
+   brw_inst_set_dp_msg_control(devinfo, insn, msg_control);
 }
 
 void
-brw_untyped_atomic(struct brw_compile *p,
-                   struct brw_reg dest,
+brw_untyped_atomic(struct brw_codegen *p,
+                   struct brw_reg dst,
                    struct brw_reg payload,
+                   struct brw_reg surface,
                    unsigned atomic_op,
-                   unsigned bind_table_index,
                    unsigned msg_length,
-                   unsigned response_length) {
-   const struct brw_context *brw = p->brw;
-   brw_inst *insn = brw_next_insn(p, BRW_OPCODE_SEND);
+                   bool response_expected)
+{
+   const struct gen_device_info *devinfo = p->devinfo;
+   const unsigned sfid = (devinfo->gen >= 8 || devinfo->is_haswell ?
+                          HSW_SFID_DATAPORT_DATA_CACHE_1 :
+                          GEN7_SFID_DATAPORT_DATA_CACHE);
+   const bool align1 = brw_inst_access_mode(devinfo, p->current) == BRW_ALIGN_1;
+   /* Mask out unused components -- This is especially important in Align16
+    * mode on generations that don't have native support for SIMD4x2 atomics,
+    * because unused but enabled components will cause the dataport to perform
+    * additional atomic operations on the addresses that happen to be in the
+    * uninitialized Y, Z and W coordinates of the payload.
+    */
+   const unsigned mask = align1 ? WRITEMASK_XYZW : WRITEMASK_X;
+   struct brw_inst *insn = brw_send_indirect_surface_message(
+      p, sfid, brw_writemask(dst, mask), payload, surface, msg_length,
+      brw_surface_payload_size(p, response_expected,
+                               devinfo->gen >= 8 || devinfo->is_haswell, true),
+      align1);
 
-   brw_set_dest(p, insn, retype(dest, BRW_REGISTER_TYPE_UD));
-   brw_set_src0(p, insn, retype(payload, BRW_REGISTER_TYPE_UD));
-   brw_set_src1(p, insn, brw_imm_d(0));
    brw_set_dp_untyped_atomic_message(
-      p, insn, atomic_op, bind_table_index, msg_length, response_length,
-      brw_inst_access_mode(brw, insn) == BRW_ALIGN_1);
+      p, insn, atomic_op, response_expected);
 }
 
 static void
-brw_set_dp_untyped_surface_read_message(struct brw_compile *p,
-                                        brw_inst *insn,
-                                        unsigned bind_table_index,
-                                        unsigned msg_length,
-                                        unsigned response_length,
-                                        bool header_present)
-{
-   const struct brw_context *brw = p->brw;
-   const unsigned dispatch_width =
-      (brw_inst_exec_size(brw, insn) == BRW_EXECUTE_16 ? 16 : 8);
-   const unsigned num_channels = response_length / (dispatch_width / 8);
-
-   if (brw->gen >= 8 || brw->is_haswell) {
-      brw_set_message_descriptor(p, insn, HSW_SFID_DATAPORT_DATA_CACHE_1,
-                                 msg_length, response_length,
-                                 header_present, false);
-
-      brw_inst_set_dp_msg_type(brw, insn,
-                               HSW_DATAPORT_DC_PORT1_UNTYPED_SURFACE_READ);
-   } else {
-      brw_set_message_descriptor(p, insn, GEN7_SFID_DATAPORT_DATA_CACHE,
-                                 msg_length, response_length,
-                                 header_present, false);
+brw_set_dp_untyped_surface_read_message(struct brw_codegen *p,
+                                        struct brw_inst *insn,
+                                        unsigned num_channels)
+{
+   const struct gen_device_info *devinfo = p->devinfo;
+   /* Set mask of 32-bit channels to drop. */
+   unsigned msg_control = 0xf & (0xf << num_channels);
 
-      brw_inst_set_dp_msg_type(brw, insn,
-                               GEN7_DATAPORT_DC_UNTYPED_SURFACE_READ);
+   if (brw_inst_access_mode(devinfo, p->current) == BRW_ALIGN_1) {
+      if (brw_inst_exec_size(devinfo, p->current) == BRW_EXECUTE_16)
+         msg_control |= 1 << 4; /* SIMD16 mode */
+      else
+         msg_control |= 2 << 4; /* SIMD8 mode */
    }
 
+   brw_inst_set_dp_msg_type(devinfo, insn,
+                            (devinfo->gen >= 8 || devinfo->is_haswell ?
+                             HSW_DATAPORT_DC_PORT1_UNTYPED_SURFACE_READ :
+                             GEN7_DATAPORT_DC_UNTYPED_SURFACE_READ));
+   brw_inst_set_dp_msg_control(devinfo, insn, msg_control);
+}
+
+void
+brw_untyped_surface_read(struct brw_codegen *p,
+                         struct brw_reg dst,
+                         struct brw_reg payload,
+                         struct brw_reg surface,
+                         unsigned msg_length,
+                         unsigned num_channels)
+{
+   const struct gen_device_info *devinfo = p->devinfo;
+   const unsigned sfid = (devinfo->gen >= 8 || devinfo->is_haswell ?
+                          HSW_SFID_DATAPORT_DATA_CACHE_1 :
+                          GEN7_SFID_DATAPORT_DATA_CACHE);
+   struct brw_inst *insn = brw_send_indirect_surface_message(
+      p, sfid, dst, payload, surface, msg_length,
+      brw_surface_payload_size(p, num_channels, true, true),
+      false);
+
+   brw_set_dp_untyped_surface_read_message(
+      p, insn, num_channels);
+}
+
+static void
+brw_set_dp_untyped_surface_write_message(struct brw_codegen *p,
+                                         struct brw_inst *insn,
+                                         unsigned num_channels)
+{
+   const struct gen_device_info *devinfo = p->devinfo;
    /* Set mask of 32-bit channels to drop. */
-   unsigned msg_control = (0xf & (0xf << num_channels));
+   unsigned msg_control = 0xf & (0xf << num_channels);
 
-   if (brw_inst_access_mode(brw, insn) == BRW_ALIGN_1) {
-      if (dispatch_width == 16)
+   if (brw_inst_access_mode(devinfo, p->current) == BRW_ALIGN_1) {
+      if (brw_inst_exec_size(devinfo, p->current) == BRW_EXECUTE_16)
          msg_control |= 1 << 4; /* SIMD16 mode */
       else
          msg_control |= 2 << 4; /* SIMD8 mode */
+   } else {
+      if (devinfo->gen >= 8 || devinfo->is_haswell)
+         msg_control |= 0 << 4; /* SIMD4x2 mode */
+      else
+         msg_control |= 2 << 4; /* SIMD8 mode */
    }
 
-   brw_inst_set_binding_table_index(brw, insn, bind_table_index);
-   brw_inst_set_dp_msg_control(brw, insn, msg_control);
+   brw_inst_set_dp_msg_type(devinfo, insn,
+                            devinfo->gen >= 8 || devinfo->is_haswell ?
+                             HSW_DATAPORT_DC_PORT1_UNTYPED_SURFACE_WRITE :
+                             GEN7_DATAPORT_DC_UNTYPED_SURFACE_WRITE);
+   brw_inst_set_dp_msg_control(devinfo, insn, msg_control);
 }
 
 void
-brw_untyped_surface_read(struct brw_compile *p,
-                         struct brw_reg dest,
-                         struct brw_reg mrf,
-                         unsigned bind_table_index,
-                         unsigned msg_length,
-                         unsigned response_length)
+brw_untyped_surface_write(struct brw_codegen *p,
+                          struct brw_reg payload,
+                          struct brw_reg surface,
+                          unsigned msg_length,
+                          unsigned num_channels)
+{
+   const struct gen_device_info *devinfo = p->devinfo;
+   const unsigned sfid = (devinfo->gen >= 8 || devinfo->is_haswell ?
+                          HSW_SFID_DATAPORT_DATA_CACHE_1 :
+                          GEN7_SFID_DATAPORT_DATA_CACHE);
+   const bool align1 = brw_inst_access_mode(devinfo, p->current) == BRW_ALIGN_1;
+   /* Mask out unused components -- See comment in brw_untyped_atomic(). */
+   const unsigned mask = devinfo->gen == 7 && !devinfo->is_haswell && !align1 ?
+                          WRITEMASK_X : WRITEMASK_XYZW;
+   struct brw_inst *insn = brw_send_indirect_surface_message(
+      p, sfid, brw_writemask(brw_null_reg(), mask),
+      payload, surface, msg_length, 0, align1);
+
+   brw_set_dp_untyped_surface_write_message(
+      p, insn, num_channels);
+}
+
+static void
+brw_set_dp_typed_atomic_message(struct brw_codegen *p,
+                                struct brw_inst *insn,
+                                unsigned atomic_op,
+                                bool response_expected)
 {
-   const struct brw_context *brw = p->brw;
-   brw_inst *insn = next_insn(p, BRW_OPCODE_SEND);
+   const struct gen_device_info *devinfo = p->devinfo;
+   unsigned msg_control =
+      atomic_op | /* Atomic Operation Type: BRW_AOP_* */
+      (response_expected ? 1 << 5 : 0); /* Return data expected */
 
-   brw_set_dest(p, insn, retype(dest, BRW_REGISTER_TYPE_UD));
-   brw_set_src0(p, insn, retype(mrf, BRW_REGISTER_TYPE_UD));
-   brw_set_dp_untyped_surface_read_message(
-      p, insn, bind_table_index, msg_length, response_length,
-      brw_inst_access_mode(brw, insn) == BRW_ALIGN_1);
+   if (devinfo->gen >= 8 || devinfo->is_haswell) {
+      if (brw_inst_access_mode(devinfo, p->current) == BRW_ALIGN_1) {
+         if (brw_inst_qtr_control(devinfo, p->current) % 2 == 1)
+            msg_control |= 1 << 4; /* Use high 8 slots of the sample mask */
+
+         brw_inst_set_dp_msg_type(devinfo, insn,
+                                  HSW_DATAPORT_DC_PORT1_TYPED_ATOMIC_OP);
+      } else {
+         brw_inst_set_dp_msg_type(devinfo, insn,
+                                  HSW_DATAPORT_DC_PORT1_TYPED_ATOMIC_OP_SIMD4X2);
+      }
+
+   } else {
+      brw_inst_set_dp_msg_type(devinfo, insn,
+                               GEN7_DATAPORT_RC_TYPED_ATOMIC_OP);
+
+      if (brw_inst_qtr_control(devinfo, p->current) % 2 == 1)
+         msg_control |= 1 << 4; /* Use high 8 slots of the sample mask */
+   }
+
+   brw_inst_set_dp_msg_control(devinfo, insn, msg_control);
 }
 
 void
-brw_pixel_interpolator_query(struct brw_compile *p,
+brw_typed_atomic(struct brw_codegen *p,
+                 struct brw_reg dst,
+                 struct brw_reg payload,
+                 struct brw_reg surface,
+                 unsigned atomic_op,
+                 unsigned msg_length,
+                 bool response_expected) {
+   const struct gen_device_info *devinfo = p->devinfo;
+   const unsigned sfid = (devinfo->gen >= 8 || devinfo->is_haswell ?
+                          HSW_SFID_DATAPORT_DATA_CACHE_1 :
+                          GEN6_SFID_DATAPORT_RENDER_CACHE);
+   const bool align1 = (brw_inst_access_mode(devinfo, p->current) == BRW_ALIGN_1);
+   /* Mask out unused components -- See comment in brw_untyped_atomic(). */
+   const unsigned mask = align1 ? WRITEMASK_XYZW : WRITEMASK_X;
+   struct brw_inst *insn = brw_send_indirect_surface_message(
+      p, sfid, brw_writemask(dst, mask), payload, surface, msg_length,
+      brw_surface_payload_size(p, response_expected,
+                               devinfo->gen >= 8 || devinfo->is_haswell, false),
+      true);
+
+   brw_set_dp_typed_atomic_message(
+      p, insn, atomic_op, response_expected);
+}
+
+static void
+brw_set_dp_typed_surface_read_message(struct brw_codegen *p,
+                                      struct brw_inst *insn,
+                                      unsigned num_channels)
+{
+   const struct gen_device_info *devinfo = p->devinfo;
+   /* Set mask of unused channels. */
+   unsigned msg_control = 0xf & (0xf << num_channels);
+
+   if (devinfo->gen >= 8 || devinfo->is_haswell) {
+      if (brw_inst_access_mode(devinfo, p->current) == BRW_ALIGN_1) {
+         if (brw_inst_qtr_control(devinfo, p->current) % 2 == 1)
+            msg_control |= 2 << 4; /* Use high 8 slots of the sample mask */
+         else
+            msg_control |= 1 << 4; /* Use low 8 slots of the sample mask */
+      }
+
+      brw_inst_set_dp_msg_type(devinfo, insn,
+                               HSW_DATAPORT_DC_PORT1_TYPED_SURFACE_READ);
+   } else {
+      if (brw_inst_access_mode(devinfo, p->current) == BRW_ALIGN_1) {
+         if (brw_inst_qtr_control(devinfo, p->current) % 2 == 1)
+            msg_control |= 1 << 5; /* Use high 8 slots of the sample mask */
+      }
+
+      brw_inst_set_dp_msg_type(devinfo, insn,
+                               GEN7_DATAPORT_RC_TYPED_SURFACE_READ);
+   }
+
+   brw_inst_set_dp_msg_control(devinfo, insn, msg_control);
+}
+
+void
+brw_typed_surface_read(struct brw_codegen *p,
+                       struct brw_reg dst,
+                       struct brw_reg payload,
+                       struct brw_reg surface,
+                       unsigned msg_length,
+                       unsigned num_channels)
+{
+   const struct gen_device_info *devinfo = p->devinfo;
+   const unsigned sfid = (devinfo->gen >= 8 || devinfo->is_haswell ?
+                          HSW_SFID_DATAPORT_DATA_CACHE_1 :
+                          GEN6_SFID_DATAPORT_RENDER_CACHE);
+   struct brw_inst *insn = brw_send_indirect_surface_message(
+      p, sfid, dst, payload, surface, msg_length,
+      brw_surface_payload_size(p, num_channels,
+                               devinfo->gen >= 8 || devinfo->is_haswell, false),
+      true);
+
+   brw_set_dp_typed_surface_read_message(
+      p, insn, num_channels);
+}
+
+static void
+brw_set_dp_typed_surface_write_message(struct brw_codegen *p,
+                                       struct brw_inst *insn,
+                                       unsigned num_channels)
+{
+   const struct gen_device_info *devinfo = p->devinfo;
+   /* Set mask of unused channels. */
+   unsigned msg_control = 0xf & (0xf << num_channels);
+
+   if (devinfo->gen >= 8 || devinfo->is_haswell) {
+      if (brw_inst_access_mode(devinfo, p->current) == BRW_ALIGN_1) {
+         if (brw_inst_qtr_control(devinfo, p->current) % 2 == 1)
+            msg_control |= 2 << 4; /* Use high 8 slots of the sample mask */
+         else
+            msg_control |= 1 << 4; /* Use low 8 slots of the sample mask */
+      }
+
+      brw_inst_set_dp_msg_type(devinfo, insn,
+                               HSW_DATAPORT_DC_PORT1_TYPED_SURFACE_WRITE);
+
+   } else {
+      if (brw_inst_access_mode(devinfo, p->current) == BRW_ALIGN_1) {
+         if (brw_inst_qtr_control(devinfo, p->current) % 2 == 1)
+            msg_control |= 1 << 5; /* Use high 8 slots of the sample mask */
+      }
+
+      brw_inst_set_dp_msg_type(devinfo, insn,
+                               GEN7_DATAPORT_RC_TYPED_SURFACE_WRITE);
+   }
+
+   brw_inst_set_dp_msg_control(devinfo, insn, msg_control);
+}
+
+void
+brw_typed_surface_write(struct brw_codegen *p,
+                        struct brw_reg payload,
+                        struct brw_reg surface,
+                        unsigned msg_length,
+                        unsigned num_channels)
+{
+   const struct gen_device_info *devinfo = p->devinfo;
+   const unsigned sfid = (devinfo->gen >= 8 || devinfo->is_haswell ?
+                          HSW_SFID_DATAPORT_DATA_CACHE_1 :
+                          GEN6_SFID_DATAPORT_RENDER_CACHE);
+   const bool align1 = (brw_inst_access_mode(devinfo, p->current) == BRW_ALIGN_1);
+   /* Mask out unused components -- See comment in brw_untyped_atomic(). */
+   const unsigned mask = (devinfo->gen == 7 && !devinfo->is_haswell && !align1 ?
+                          WRITEMASK_X : WRITEMASK_XYZW);
+   struct brw_inst *insn = brw_send_indirect_surface_message(
+      p, sfid, brw_writemask(brw_null_reg(), mask),
+      payload, surface, msg_length, 0, true);
+
+   brw_set_dp_typed_surface_write_message(
+      p, insn, num_channels);
+}
+
+static void
+brw_set_memory_fence_message(struct brw_codegen *p,
+                             struct brw_inst *insn,
+                             enum brw_message_target sfid,
+                             bool commit_enable)
+{
+   const struct gen_device_info *devinfo = p->devinfo;
+
+   brw_set_message_descriptor(p, insn, sfid,
+                              1 /* message length */,
+                              (commit_enable ? 1 : 0) /* response length */,
+                              true /* header present */,
+                              false);
+
+   switch (sfid) {
+   case GEN6_SFID_DATAPORT_RENDER_CACHE:
+      brw_inst_set_dp_msg_type(devinfo, insn, GEN7_DATAPORT_RC_MEMORY_FENCE);
+      break;
+   case GEN7_SFID_DATAPORT_DATA_CACHE:
+      brw_inst_set_dp_msg_type(devinfo, insn, GEN7_DATAPORT_DC_MEMORY_FENCE);
+      break;
+   default:
+      unreachable("Not reached");
+   }
+
+   if (commit_enable)
+      brw_inst_set_dp_msg_control(devinfo, insn, 1 << 5);
+}
+
+void
+brw_memory_fence(struct brw_codegen *p,
+                 struct brw_reg dst)
+{
+   const struct gen_device_info *devinfo = p->devinfo;
+   const bool commit_enable = devinfo->gen == 7 && !devinfo->is_haswell;
+   struct brw_inst *insn;
+
+   brw_push_insn_state(p);
+   brw_set_default_mask_control(p, BRW_MASK_DISABLE);
+   brw_set_default_exec_size(p, BRW_EXECUTE_1);
+   dst = vec1(dst);
+
+   /* Set dst as destination for dependency tracking, the MEMORY_FENCE
+    * message doesn't write anything back.
+    */
+   insn = next_insn(p, BRW_OPCODE_SEND);
+   dst = retype(dst, BRW_REGISTER_TYPE_UW);
+   brw_set_dest(p, insn, dst);
+   brw_set_src0(p, insn, dst);
+   brw_set_memory_fence_message(p, insn, GEN7_SFID_DATAPORT_DATA_CACHE,
+                                commit_enable);
+
+   if (devinfo->gen == 7 && !devinfo->is_haswell) {
+      /* IVB does typed surface access through the render cache, so we need to
+       * flush it too.  Use a different register so both flushes can be
+       * pipelined by the hardware.
+       */
+      insn = next_insn(p, BRW_OPCODE_SEND);
+      brw_set_dest(p, insn, offset(dst, 1));
+      brw_set_src0(p, insn, offset(dst, 1));
+      brw_set_memory_fence_message(p, insn, GEN6_SFID_DATAPORT_RENDER_CACHE,
+                                   commit_enable);
+
+      /* Now write the response of the second message into the response of the
+       * first to trigger a pipeline stall -- This way future render and data
+       * cache messages will be properly ordered with respect to past data and
+       * render cache messages.
+       */
+      brw_MOV(p, dst, offset(dst, 1));
+   }
+
+   brw_pop_insn_state(p);
+}
+
+void
+brw_pixel_interpolator_query(struct brw_codegen *p,
                              struct brw_reg dest,
                              struct brw_reg mrf,
                              bool noperspective,
                              unsigned mode,
-                             unsigned data,
+                             struct brw_reg data,
                              unsigned msg_length,
                              unsigned response_length)
 {
-   const struct brw_context *brw = p->brw;
-   struct brw_inst *insn = next_insn(p, BRW_OPCODE_SEND);
+   const struct gen_device_info *devinfo = p->devinfo;
+   struct brw_inst *insn;
+   const uint16_t exec_size = brw_inst_exec_size(devinfo, p->current);
 
-   brw_set_dest(p, insn, dest);
-   brw_set_src0(p, insn, mrf);
-   brw_set_message_descriptor(p, insn, GEN7_SFID_PIXEL_INTERPOLATOR,
-                              msg_length, response_length,
-                              false /* header is never present for PI */,
-                              false);
+   /* brw_send_indirect_message will automatically use a direct send message
+    * if data is actually immediate.
+    */
+   insn = brw_send_indirect_message(p,
+                                    GEN7_SFID_PIXEL_INTERPOLATOR,
+                                    dest,
+                                    mrf,
+                                    vec1(data));
+   brw_inst_set_mlen(devinfo, insn, msg_length);
+   brw_inst_set_rlen(devinfo, insn, response_length);
+
+   brw_inst_set_pi_simd_mode(devinfo, insn, exec_size == BRW_EXECUTE_16);
+   brw_inst_set_pi_slot_group(devinfo, insn, 0); /* zero unless 32/64px dispatch */
+   brw_inst_set_pi_nopersp(devinfo, insn, noperspective);
+   brw_inst_set_pi_message_type(devinfo, insn, mode);
+}
+
+void
+brw_find_live_channel(struct brw_codegen *p, struct brw_reg dst,
+                      struct brw_reg mask)
+{
+   const struct gen_device_info *devinfo = p->devinfo;
+   const unsigned exec_size = 1 << brw_inst_exec_size(devinfo, p->current);
+   const unsigned qtr_control = brw_inst_qtr_control(devinfo, p->current);
+   brw_inst *inst;
+
+   assert(devinfo->gen >= 7);
+   assert(mask.type == BRW_REGISTER_TYPE_UD);
+
+   brw_push_insn_state(p);
+
+   if (brw_inst_access_mode(devinfo, p->current) == BRW_ALIGN_1) {
+      brw_set_default_mask_control(p, BRW_MASK_DISABLE);
+
+      if (devinfo->gen >= 8) {
+         /* Getting the first active channel index is easy on Gen8: Just find
+          * the first bit set in the execution mask.  The register exists on
+          * HSW already but it reads back as all ones when the current
+          * instruction has execution masking disabled, so it's kind of
+          * useless.
+          */
+         struct brw_reg exec_mask =
+            retype(brw_mask_reg(0), BRW_REGISTER_TYPE_UD);
+
+         if (mask.file != BRW_IMMEDIATE_VALUE || mask.ud != 0xffffffff) {
+            /* Unfortunately, ce0 does not take into account the thread
+             * dispatch mask, which may be a problem in cases where it's not
+             * tightly packed (i.e. it doesn't have the form '2^n - 1' for
+             * some n).  Combine ce0 with the given dispatch (or vector) mask
+             * to mask off those channels which were never dispatched by the
+             * hardware.
+             */
+            brw_SHR(p, vec1(dst), mask, brw_imm_ud(qtr_control * 8));
+            brw_AND(p, vec1(dst), exec_mask, vec1(dst));
+            exec_mask = vec1(dst);
+         }
+
+         /* Quarter control has the effect of magically shifting the value of
+          * ce0 so you'll get the first active channel relative to the
+          * specified quarter control as result.
+          */
+         inst = brw_FBL(p, vec1(dst), exec_mask);
+      } else {
+         const struct brw_reg flag = brw_flag_reg(1, 0);
+
+         brw_MOV(p, retype(flag, BRW_REGISTER_TYPE_UD), brw_imm_ud(0));
+
+         /* Run enough instructions returning zero with execution masking and
+          * a conditional modifier enabled in order to get the full execution
+          * mask in f1.0.  We could use a single 32-wide move here if it
+          * weren't because of the hardware bug that causes channel enables to
+          * be applied incorrectly to the second half of 32-wide instructions
+          * on Gen7.
+          */
+         const unsigned lower_size = MIN2(16, exec_size);
+         for (unsigned i = 0; i < exec_size / lower_size; i++) {
+            inst = brw_MOV(p, retype(brw_null_reg(), BRW_REGISTER_TYPE_UW),
+                           brw_imm_uw(0));
+            brw_inst_set_mask_control(devinfo, inst, BRW_MASK_ENABLE);
+            brw_inst_set_group(devinfo, inst, lower_size * i + 8 * qtr_control);
+            brw_inst_set_cond_modifier(devinfo, inst, BRW_CONDITIONAL_Z);
+            brw_inst_set_flag_reg_nr(devinfo, inst, 1);
+            brw_inst_set_exec_size(devinfo, inst, cvt(lower_size) - 1);
+         }
+
+         /* Find the first bit set in the exec_size-wide portion of the flag
+          * register that was updated by the last sequence of MOV
+          * instructions.
+          */
+         const enum brw_reg_type type = brw_int_type(exec_size / 8, false);
+         brw_FBL(p, vec1(dst), byte_offset(retype(flag, type), qtr_control));
+      }
+   } else {
+      brw_set_default_mask_control(p, BRW_MASK_DISABLE);
+
+      if (devinfo->gen >= 8 &&
+          mask.file == BRW_IMMEDIATE_VALUE && mask.ud == 0xffffffff) {
+         /* In SIMD4x2 mode the first active channel index is just the
+          * negation of the first bit of the mask register.  Note that ce0
+          * doesn't take into account the dispatch mask, so the Gen7 path
+          * should be used instead unless you have the guarantee that the
+          * dispatch mask is tightly packed (i.e. it has the form '2^n - 1'
+          * for some n).
+          */
+         inst = brw_AND(p, brw_writemask(dst, WRITEMASK_X),
+                        negate(retype(brw_mask_reg(0), BRW_REGISTER_TYPE_UD)),
+                        brw_imm_ud(1));
+
+      } else {
+         /* Overwrite the destination without and with execution masking to
+          * find out which of the channels is active.
+          */
+         brw_push_insn_state(p);
+         brw_set_default_exec_size(p, BRW_EXECUTE_4);
+         brw_MOV(p, brw_writemask(vec4(dst), WRITEMASK_X),
+                 brw_imm_ud(1));
+
+         inst = brw_MOV(p, brw_writemask(vec4(dst), WRITEMASK_X),
+                        brw_imm_ud(0));
+         brw_pop_insn_state(p);
+         brw_inst_set_mask_control(devinfo, inst, BRW_MASK_ENABLE);
+      }
+   }
+
+   brw_pop_insn_state(p);
+}
+
+void
+brw_broadcast(struct brw_codegen *p,
+              struct brw_reg dst,
+              struct brw_reg src,
+              struct brw_reg idx)
+{
+   const struct gen_device_info *devinfo = p->devinfo;
+   const bool align1 = brw_inst_access_mode(devinfo, p->current) == BRW_ALIGN_1;
+   brw_inst *inst;
 
-   brw_inst_set_pi_simd_mode(
-         brw, insn, brw_inst_exec_size(brw, insn) == BRW_EXECUTE_16);
-   brw_inst_set_pi_slot_group(brw, insn, 0); /* zero unless 32/64px dispatch */
-   brw_inst_set_pi_nopersp(brw, insn, noperspective);
-   brw_inst_set_pi_message_type(brw, insn, mode);
-   brw_inst_set_pi_message_data(brw, insn, data);
+   brw_push_insn_state(p);
+   brw_set_default_mask_control(p, BRW_MASK_DISABLE);
+   brw_set_default_exec_size(p, align1 ? BRW_EXECUTE_1 : BRW_EXECUTE_4);
+
+   assert(src.file == BRW_GENERAL_REGISTER_FILE &&
+          src.address_mode == BRW_ADDRESS_DIRECT);
+
+   if ((src.vstride == 0 && (src.hstride == 0 || !align1)) ||
+       idx.file == BRW_IMMEDIATE_VALUE) {
+      /* Trivial, the source is already uniform or the index is a constant.
+       * We will typically not get here if the optimizer is doing its job, but
+       * asserting would be mean.
+       */
+      const unsigned i = idx.file == BRW_IMMEDIATE_VALUE ? idx.ud : 0;
+      brw_MOV(p, dst,
+              (align1 ? stride(suboffset(src, i), 0, 1, 0) :
+               stride(suboffset(src, 4 * i), 0, 4, 1)));
+   } else {
+      if (align1) {
+         const struct brw_reg addr =
+            retype(brw_address_reg(0), BRW_REGISTER_TYPE_UD);
+         const unsigned offset = src.nr * REG_SIZE + src.subnr;
+         /* Limit in bytes of the signed indirect addressing immediate. */
+         const unsigned limit = 512;
+
+         brw_push_insn_state(p);
+         brw_set_default_mask_control(p, BRW_MASK_DISABLE);
+         brw_set_default_predicate_control(p, BRW_PREDICATE_NONE);
+
+         /* Take into account the component size and horizontal stride. */
+         assert(src.vstride == src.hstride + src.width);
+         brw_SHL(p, addr, vec1(idx),
+                 brw_imm_ud(_mesa_logbase2(type_sz(src.type)) +
+                            src.hstride - 1));
+
+         /* We can only address up to limit bytes using the indirect
+          * addressing immediate, account for the difference if the source
+          * register is above this limit.
+          */
+         if (offset >= limit)
+            brw_ADD(p, addr, addr, brw_imm_ud(offset - offset % limit));
+
+         brw_pop_insn_state(p);
+
+         /* Use indirect addressing to fetch the specified component. */
+         brw_MOV(p, dst,
+                 retype(brw_vec1_indirect(addr.subnr, offset % limit),
+                        src.type));
+      } else {
+         /* In SIMD4x2 mode the index can be either zero or one, replicate it
+          * to all bits of a flag register,
+          */
+         inst = brw_MOV(p,
+                        brw_null_reg(),
+                        stride(brw_swizzle(idx, BRW_SWIZZLE_XXXX), 4, 4, 1));
+         brw_inst_set_pred_control(devinfo, inst, BRW_PREDICATE_NONE);
+         brw_inst_set_cond_modifier(devinfo, inst, BRW_CONDITIONAL_NZ);
+         brw_inst_set_flag_reg_nr(devinfo, inst, 1);
+
+         /* and use predicated SEL to pick the right channel. */
+         inst = brw_SEL(p, dst,
+                        stride(suboffset(src, 4), 4, 4, 1),
+                        stride(src, 4, 4, 1));
+         brw_inst_set_pred_control(devinfo, inst, BRW_PREDICATE_NORMAL);
+         brw_inst_set_flag_reg_nr(devinfo, inst, 1);
+      }
+   }
+
+   brw_pop_insn_state(p);
 }
 
 /**
@@ -2842,17 +3567,20 @@ brw_pixel_interpolator_query(struct brw_compile *p,
  * format, and is only accessible through the legacy DATA_CACHE dataport
  * messages.
  */
-void brw_shader_time_add(struct brw_compile *p,
+void brw_shader_time_add(struct brw_codegen *p,
                          struct brw_reg payload,
                          uint32_t surf_index)
 {
-   assert(p->brw->gen >= 7);
+   const unsigned sfid = (p->devinfo->gen >= 8 || p->devinfo->is_haswell ?
+                          HSW_SFID_DATAPORT_DATA_CACHE_1 :
+                          GEN7_SFID_DATAPORT_DATA_CACHE);
+   assert(p->devinfo->gen >= 7);
 
    brw_push_insn_state(p);
    brw_set_default_access_mode(p, BRW_ALIGN_1);
    brw_set_default_mask_control(p, BRW_MASK_DISABLE);
+   brw_set_default_compression_control(p, BRW_COMPRESSION_NONE);
    brw_inst *send = brw_next_insn(p, BRW_OPCODE_SEND);
-   brw_pop_insn_state(p);
 
    /* We use brw_vec1_reg and unmasked because we want to increment the given
     * offset only once.
@@ -2861,8 +3589,61 @@ void brw_shader_time_add(struct brw_compile *p,
                                       BRW_ARF_NULL, 0));
    brw_set_src0(p, send, brw_vec1_reg(payload.file,
                                       payload.nr, 0));
-   brw_set_dp_untyped_atomic_message(p, send, BRW_AOP_ADD, surf_index,
-                                     2 /* message length */,
-                                     0 /* response length */,
-                                     false /* header present */);
+   brw_set_src1(p, send, brw_imm_ud(0));
+   brw_set_message_descriptor(p, send, sfid, 2, 0, false, false);
+   brw_inst_set_binding_table_index(p->devinfo, send, surf_index);
+   brw_set_dp_untyped_atomic_message(p, send, BRW_AOP_ADD, false);
+
+   brw_pop_insn_state(p);
+}
+
+
+/**
+ * Emit the SEND message for a barrier
+ */
+void
+brw_barrier(struct brw_codegen *p, struct brw_reg src)
+{
+   const struct gen_device_info *devinfo = p->devinfo;
+   struct brw_inst *inst;
+
+   assert(devinfo->gen >= 7);
+
+   inst = next_insn(p, BRW_OPCODE_SEND);
+   brw_set_dest(p, inst, retype(brw_null_reg(), BRW_REGISTER_TYPE_UW));
+   brw_set_src0(p, inst, src);
+   brw_set_src1(p, inst, brw_null_reg());
+
+   brw_set_message_descriptor(p, inst, BRW_SFID_MESSAGE_GATEWAY,
+                              1 /* msg_length */,
+                              0 /* response_length */,
+                              false /* header_present */,
+                              false /* end_of_thread */);
+
+   brw_inst_set_gateway_notify(devinfo, inst, 1);
+   brw_inst_set_gateway_subfuncid(devinfo, inst,
+                                  BRW_MESSAGE_GATEWAY_SFID_BARRIER_MSG);
+
+   brw_inst_set_mask_control(devinfo, inst, BRW_MASK_DISABLE);
+}
+
+
+/**
+ * Emit the wait instruction for a barrier
+ */
+void
+brw_WAIT(struct brw_codegen *p)
+{
+   const struct gen_device_info *devinfo = p->devinfo;
+   struct brw_inst *insn;
+
+   struct brw_reg src = brw_notification_reg();
+
+   insn = next_insn(p, BRW_OPCODE_WAIT);
+   brw_set_dest(p, insn, src);
+   brw_set_src0(p, insn, src);
+   brw_set_src1(p, insn, brw_null_reg());
+
+   brw_inst_set_exec_size(devinfo, insn, BRW_EXECUTE_1);
+   brw_inst_set_mask_control(devinfo, insn, BRW_MASK_DISABLE);
 }