radeonsi: drop two unused variables in create_function()
[mesa.git] / src / mesa / state_tracker / st_glsl_to_tgsi.cpp
index 5131c342445b2036343d075009735f52e216044f..9bc745c79166bf8193eef696ae67b39088490014 100644 (file)
@@ -52,7 +52,6 @@
 #include "st_program.h"
 #include "st_mesa_to_tgsi.h"
 #include "st_format.h"
-#include "st_glsl_types.h"
 #include "st_nir.h"
 #include "st_shader_cache.h"
 
@@ -87,6 +86,13 @@ static int swizzle_for_type(const glsl_type *type, int component = 0)
    return swizzle;
 }
 
+static unsigned is_precise(const ir_variable *ir)
+{
+   if (!ir)
+      return 0;
+   return ir->data.precise || ir->data.invariant;
+}
+
 /**
  * This struct is a corresponding struct to TGSI ureg_src.
  */
@@ -289,13 +295,14 @@ public:
 
    st_dst_reg dst[2];
    st_src_reg src[4];
-   st_src_reg resource; /**< sampler or buffer register */
+   st_src_reg resource; /**< sampler, image or buffer register */
    st_src_reg *tex_offsets;
 
    /** Pointer to the ir source this tree came from for debugging */
    ir_instruction *ir;
 
    unsigned op:8; /**< TGSI opcode */
+   unsigned precise:1;
    unsigned saturate:1;
    unsigned is_64bit_expanded:1;
    unsigned sampler_base:5;
@@ -391,7 +398,7 @@ find_array_type(struct inout_decl *decls, unsigned count, unsigned array_id)
 }
 
 struct rename_reg_pair {
-   bool valid;
+   int old_reg;
    int new_reg;
 };
 
@@ -435,6 +442,7 @@ public:
    bool have_fma;
    bool use_shared_memory;
    bool has_tex_txf_lz;
+   bool precise;
 
    variable_storage *find_variable_storage(ir_variable *var);
 
@@ -559,7 +567,7 @@ public:
 
    void simplify_cmp(void);
 
-   void rename_temp_registers(struct rename_reg_pair *renames);
+   void rename_temp_registers(int num_renames, struct rename_reg_pair *renames);
    void get_first_temp_read(int *first_reads);
    void get_first_temp_write(int *first_writes);
    void get_last_temp_read_first_temp_write(int *last_reads, int *first_writes);
@@ -691,6 +699,7 @@ glsl_to_tgsi_visitor::emit_asm(ir_instruction *ir, unsigned op,
    STATIC_ASSERT(TGSI_OPCODE_LAST <= 255);
 
    inst->op = op;
+   inst->precise = this->precise;
    inst->info = tgsi_get_opcode_info(op);
    inst->dst[0] = dst;
    inst->dst[1] = dst1;
@@ -1228,13 +1237,13 @@ glsl_to_tgsi_visitor::st_src_reg_for_type(enum glsl_base_type type, int val)
 static int
 attrib_type_size(const struct glsl_type *type, bool is_vs_input)
 {
-   return st_glsl_attrib_type_size(type, is_vs_input);
+   return type->count_attribute_slots(is_vs_input);
 }
 
 static int
 type_size(const struct glsl_type *type)
 {
-   return st_glsl_type_size(type);
+   return type->count_attribute_slots(false);
 }
 
 /**
@@ -1547,7 +1556,7 @@ glsl_to_tgsi_visitor::visit(ir_expression *ir)
 
    /* Quick peephole: Emit MAD(a, b, c) instead of ADD(MUL(a, b), c)
     */
-   if (ir->operation == ir_binop_add) {
+   if (!this->precise && ir->operation == ir_binop_add) {
       if (try_emit_mad(ir, 1))
          return;
       if (try_emit_mad(ir, 0))
@@ -2331,6 +2340,10 @@ glsl_to_tgsi_visitor::visit_expression(ir_expression* ir, st_src_reg *op)
    case ir_unop_pack_int_2x32:
    case ir_unop_unpack_uint_2x32:
    case ir_unop_pack_uint_2x32:
+   case ir_unop_unpack_sampler_2x32:
+   case ir_unop_pack_sampler_2x32:
+   case ir_unop_unpack_image_2x32:
+   case ir_unop_pack_image_2x32:
       emit_asm(ir, TGSI_OPCODE_MOV, result_dst, op[0]);
       break;
 
@@ -2489,11 +2502,6 @@ glsl_to_tgsi_visitor::visit_expression(ir_expression* ir, st_src_reg *op)
    case ir_unop_unpack_snorm_4x8:
    case ir_unop_unpack_unorm_4x8:
 
-   case ir_unop_unpack_sampler_2x32:
-   case ir_unop_pack_sampler_2x32:
-   case ir_unop_unpack_image_2x32:
-   case ir_unop_pack_image_2x32:
-
    case ir_quadop_vector:
    case ir_binop_vector_extract:
    case ir_triop_vector_insert:
@@ -3148,6 +3156,8 @@ glsl_to_tgsi_visitor::visit(ir_assignment *ir)
    st_dst_reg l;
    st_src_reg r;
 
+   /* all generated instructions need to be flaged as precise */
+   this->precise = is_precise(ir->lhs->variable_referenced());
    ir->rhs->accept(this);
    r = this->result;
 
@@ -3239,6 +3249,7 @@ glsl_to_tgsi_visitor::visit(ir_assignment *ir)
    } else {
       emit_block_mov(ir, ir->rhs->type, &l, &r, NULL, false);
    }
+   this->precise = 0;
 }
 
 
@@ -3764,6 +3775,59 @@ glsl_to_tgsi_visitor::visit_shared_intrinsic(ir_call *ir)
    }
 }
 
+static void
+get_image_qualifiers(ir_dereference *ir, const glsl_type **type,
+                     bool *memory_coherent, bool *memory_volatile,
+                     bool *memory_restrict, unsigned *image_format)
+{
+
+   switch (ir->ir_type) {
+   case ir_type_dereference_record: {
+      ir_dereference_record *deref_record = ir->as_dereference_record();
+      const glsl_type *struct_type = deref_record->record->type;
+
+      for (unsigned i = 0; i < struct_type->length; i++) {
+         if (!strcmp(struct_type->fields.structure[i].name,
+                     deref_record->field)) {
+            *type = struct_type->fields.structure[i].type->without_array();
+            *memory_coherent =
+               struct_type->fields.structure[i].memory_coherent;
+            *memory_volatile =
+               struct_type->fields.structure[i].memory_volatile;
+            *memory_restrict =
+               struct_type->fields.structure[i].memory_restrict;
+            *image_format =
+               struct_type->fields.structure[i].image_format;
+            break;
+         }
+      }
+      break;
+   }
+
+   case ir_type_dereference_array: {
+      ir_dereference_array *deref_arr = ir->as_dereference_array();
+      get_image_qualifiers((ir_dereference *)deref_arr->array, type,
+                           memory_coherent, memory_volatile, memory_restrict,
+                           image_format);
+      break;
+   }
+
+   case ir_type_dereference_variable: {
+      ir_variable *var = ir->variable_referenced();
+
+      *type = var->type->without_array();
+      *memory_coherent = var->data.memory_coherent;
+      *memory_volatile = var->data.memory_volatile;
+      *memory_restrict = var->data.memory_restrict;
+      *image_format = var->data.image_format;
+      break;
+   }
+
+   default:
+      break;
+   }
+}
+
 void
 glsl_to_tgsi_visitor::visit_image_intrinsic(ir_call *ir)
 {
@@ -3771,14 +3835,19 @@ glsl_to_tgsi_visitor::visit_image_intrinsic(ir_call *ir)
 
    ir_dereference *img = (ir_dereference *)param;
    const ir_variable *imgvar = img->variable_referenced();
-   const glsl_type *type = imgvar->type->without_array();
    unsigned sampler_array_size = 1, sampler_base = 0;
+   bool memory_coherent = false, memory_volatile = false, memory_restrict = false;
+   unsigned image_format = 0;
+   const glsl_type *type = NULL;
+
+   get_image_qualifiers(img, &type, &memory_coherent, &memory_volatile,
+                        &memory_restrict, &image_format);
 
    st_src_reg reladdr;
    st_src_reg image(PROGRAM_IMAGE, 0, GLSL_TYPE_UINT);
    uint16_t index = 0;
    get_deref_offsets(img, &sampler_array_size, &sampler_base,
-                     &index, &reladdr, true);
+                     &index, &reladdr, !imgvar->contains_bindless());
 
    image.index = index;
    if (reladdr.file != PROGRAM_UNDEFINED) {
@@ -3892,19 +3961,26 @@ glsl_to_tgsi_visitor::visit_image_intrinsic(ir_call *ir)
          inst->dst[0].writemask = WRITEMASK_XYZW;
    }
 
-   inst->resource = image;
-   inst->sampler_array_size = sampler_array_size;
-   inst->sampler_base = sampler_base;
+   if (imgvar->contains_bindless()) {
+      img->accept(this);
+      inst->resource = this->result;
+      inst->resource.swizzle = MAKE_SWIZZLE4(SWIZZLE_X, SWIZZLE_Y,
+                                             SWIZZLE_X, SWIZZLE_Y);
+   } else {
+      inst->resource = image;
+      inst->sampler_array_size = sampler_array_size;
+      inst->sampler_base = sampler_base;
+   }
 
    inst->tex_target = type->sampler_index();
    inst->image_format = st_mesa_format_to_pipe_format(st_context(ctx),
-         _mesa_get_shader_image_format(imgvar->data.image_format));
+         _mesa_get_shader_image_format(image_format));
 
-   if (imgvar->data.memory_coherent)
+   if (memory_coherent)
       inst->buffer_access |= TGSI_MEMORY_COHERENT;
-   if (imgvar->data.memory_restrict)
+   if (memory_restrict)
       inst->buffer_access |= TGSI_MEMORY_RESTRICT;
-   if (imgvar->data.memory_volatile)
+   if (memory_volatile)
       inst->buffer_access |= TGSI_MEMORY_VOLATILE;
 }
 
@@ -3914,6 +3990,8 @@ glsl_to_tgsi_visitor::visit_generic_intrinsic(ir_call *ir, unsigned op)
    ir->return_deref->accept(this);
    st_dst_reg dst = st_dst_reg(this->result);
 
+   dst.writemask = u_bit_consecutive(0, ir->return_deref->var->type->vector_elements);
+
    st_src_reg src[4] = { undef_src, undef_src, undef_src, undef_src };
    unsigned num_src = 0;
    foreach_in_list(ir_rvalue, param, &ir->actual_parameters) {
@@ -4567,6 +4645,7 @@ glsl_to_tgsi_visitor::glsl_to_tgsi_visitor()
    mem_ctx = ralloc_context(NULL);
    ctx = NULL;
    prog = NULL;
+   precise = 0;
    shader_program = NULL;
    shader = NULL;
    options = NULL;
@@ -4756,31 +4835,36 @@ glsl_to_tgsi_visitor::simplify_cmp(void)
 
 /* Replaces all references to a temporary register index with another index. */
 void
-glsl_to_tgsi_visitor::rename_temp_registers(struct rename_reg_pair *renames)
+glsl_to_tgsi_visitor::rename_temp_registers(int num_renames, struct rename_reg_pair *renames)
 {
    foreach_in_list(glsl_to_tgsi_instruction, inst, &this->instructions) {
       unsigned j;
+      int k;
       for (j = 0; j < num_inst_src_regs(inst); j++) {
-         if (inst->src[j].file == PROGRAM_TEMPORARY) {
-            int old_idx = inst->src[j].index;
-            if (renames[old_idx].valid)
-               inst->src[j].index = renames[old_idx].new_reg;
-         }
+         if (inst->src[j].file == PROGRAM_TEMPORARY)
+            for (k = 0; k < num_renames; k++)
+               if (inst->src[j].index == renames[k].old_reg)
+                  inst->src[j].index = renames[k].new_reg;
       }
 
       for (j = 0; j < inst->tex_offset_num_offset; j++) {
-         if (inst->tex_offsets[j].file == PROGRAM_TEMPORARY) {
-            int old_idx = inst->tex_offsets[j].index;
-            if (renames[old_idx].valid)
-               inst->tex_offsets[j].index = renames[old_idx].new_reg;
-         }
+         if (inst->tex_offsets[j].file == PROGRAM_TEMPORARY)
+            for (k = 0; k < num_renames; k++)
+               if (inst->tex_offsets[j].index == renames[k].old_reg)
+                  inst->tex_offsets[j].index = renames[k].new_reg;
+      }
+
+      if (inst->resource.file == PROGRAM_TEMPORARY) {
+         for (k = 0; k < num_renames; k++)
+            if (inst->resource.index == renames[k].old_reg)
+               inst->resource.index = renames[k].new_reg;
       }
 
       for (j = 0; j < num_inst_dst_regs(inst); j++) {
-         if (inst->dst[j].file == PROGRAM_TEMPORARY) {
-            int old_idx = inst->dst[j].index;
-            if (renames[old_idx].valid)
-               inst->dst[j].index = renames[old_idx].new_reg;}
+         if (inst->dst[j].file == PROGRAM_TEMPORARY)
+             for (k = 0; k < num_renames; k++)
+                if (inst->dst[j].index == renames[k].old_reg)
+                   inst->dst[j].index = renames[k].new_reg;
       }
    }
 }
@@ -5226,6 +5310,21 @@ glsl_to_tgsi_visitor::eliminate_dead_code(void)
                }
             }
          }
+
+         if (inst->resource.file == PROGRAM_TEMPORARY) {
+            int src_chans;
+
+            src_chans  = 1 << GET_SWZ(inst->resource.swizzle, 0);
+            src_chans |= 1 << GET_SWZ(inst->resource.swizzle, 1);
+            src_chans |= 1 << GET_SWZ(inst->resource.swizzle, 2);
+            src_chans |= 1 << GET_SWZ(inst->resource.swizzle, 3);
+
+            for (int c = 0; c < 4; c++) {
+               if (src_chans & (1 << c))
+                  writes[4 * inst->resource.index + c] = NULL;
+            }
+         }
+
          break;
       }
 
@@ -5346,6 +5445,7 @@ glsl_to_tgsi_visitor::merge_registers(void)
    int *first_writes = ralloc_array(mem_ctx, int, this->next_temp);
    struct rename_reg_pair *renames = rzalloc_array(mem_ctx, struct rename_reg_pair, this->next_temp);
    int i, j;
+   int num_renames = 0;
 
    /* Read the indices of the last read and first write to each temp register
     * into an array so that we don't have to traverse the instruction list as
@@ -5372,8 +5472,9 @@ glsl_to_tgsi_visitor::merge_registers(void)
           * as the register at index j. */
          if (first_writes[i] <= first_writes[j] &&
              last_reads[i] <= first_writes[j]) {
-            renames[j].new_reg = i;
-            renames[j].valid = true;
+            renames[num_renames].old_reg = j;
+            renames[num_renames].new_reg = i;
+            num_renames++;
 
             /* Update the first_writes and last_reads arrays with the new
              * values for the merged register index, and mark the newly unused
@@ -5386,7 +5487,7 @@ glsl_to_tgsi_visitor::merge_registers(void)
       }
    }
 
-   rename_temp_registers(renames);
+   rename_temp_registers(num_renames, renames);
    ralloc_free(renames);
    ralloc_free(last_reads);
    ralloc_free(first_writes);
@@ -5401,6 +5502,7 @@ glsl_to_tgsi_visitor::renumber_registers(void)
    int new_index = 0;
    int *first_writes = ralloc_array(mem_ctx, int, this->next_temp);
    struct rename_reg_pair *renames = rzalloc_array(mem_ctx, struct rename_reg_pair, this->next_temp);
+   int num_renames = 0;
 
    for (i = 0; i < this->next_temp; i++) {
       first_writes[i] = -1;
@@ -5410,13 +5512,14 @@ glsl_to_tgsi_visitor::renumber_registers(void)
    for (i = 0; i < this->next_temp; i++) {
       if (first_writes[i] < 0) continue;
       if (i != new_index) {
-         renames[i].new_reg = new_index;
-         renames[i].valid = true;
+         renames[num_renames].old_reg = i;
+         renames[num_renames].new_reg = new_index;
+         num_renames++;
       }
       new_index++;
    }
 
-   rename_temp_registers(renames);
+   rename_temp_registers(num_renames, renames);
    this->next_temp = new_index;
    ralloc_free(renames);
    ralloc_free(first_writes);
@@ -5861,7 +5964,7 @@ compile_tgsi_instruction(struct st_translate *t,
    case TGSI_OPCODE_IF:
    case TGSI_OPCODE_UIF:
       assert(num_dst == 0);
-      ureg_insn(ureg, inst->op, NULL, 0, src, num_src);
+      ureg_insn(ureg, inst->op, NULL, 0, src, num_src, inst->precise);
       return;
 
    case TGSI_OPCODE_TEX:
@@ -5924,7 +6027,12 @@ compile_tgsi_instruction(struct st_translate *t,
       } else if (inst->resource.file == PROGRAM_BUFFER) {
          src[0] = t->buffers[inst->resource.index];
       } else {
-         src[0] = t->images[inst->resource.index];
+         if (inst->resource.file == PROGRAM_IMAGE) {
+            src[0] = t->images[inst->resource.index];
+         } else {
+            /* Bindless images. */
+            src[0] = translate_src(t, &inst->resource);
+         }
          tex_target = st_translate_texture_target(inst->tex_target, inst->tex_shadow);
       }
       if (inst->resource.reladdr)
@@ -5941,7 +6049,12 @@ compile_tgsi_instruction(struct st_translate *t,
       } else if (inst->resource.file == PROGRAM_BUFFER) {
          dst[0] = ureg_dst(t->buffers[inst->resource.index]);
       } else {
-         dst[0] = ureg_dst(t->images[inst->resource.index]);
+         if (inst->resource.file == PROGRAM_IMAGE) {
+            dst[0] = ureg_dst(t->images[inst->resource.index]);
+         } else {
+            /* Bindless images. */
+            dst[0] = ureg_dst(translate_src(t, &inst->resource));
+         }
          tex_target = st_translate_texture_target(inst->tex_target, inst->tex_shadow);
       }
       dst[0] = ureg_writemask(dst[0], inst->dst[0].writemask);
@@ -5955,14 +6068,14 @@ compile_tgsi_instruction(struct st_translate *t,
 
    case TGSI_OPCODE_SCS:
       dst[0] = ureg_writemask(dst[0], TGSI_WRITEMASK_XY);
-      ureg_insn(ureg, inst->op, dst, num_dst, src, num_src);
+      ureg_insn(ureg, inst->op, dst, num_dst, src, num_src, inst->precise);
       break;
 
    default:
       ureg_insn(ureg,
                 inst->op,
                 dst, num_dst,
-                src, num_src);
+                src, num_src, inst->precise);
       break;
    }
 }
@@ -6650,27 +6763,8 @@ st_translate_program(
 
       for (i = program->shader->Stage+1; i <= MESA_SHADER_FRAGMENT; i++) {
          if (program->shader_program->_LinkedShaders[i]) {
-            unsigned next;
-
-            switch (i) {
-            case MESA_SHADER_TESS_CTRL:
-               next = PIPE_SHADER_TESS_CTRL;
-               break;
-            case MESA_SHADER_TESS_EVAL:
-               next = PIPE_SHADER_TESS_EVAL;
-               break;
-            case MESA_SHADER_GEOMETRY:
-               next = PIPE_SHADER_GEOMETRY;
-               break;
-            case MESA_SHADER_FRAGMENT:
-               next = PIPE_SHADER_FRAGMENT;
-               break;
-            default:
-               assert(0);
-               continue;
-            }
-
-            ureg_set_next_shader_processor(ureg, next);
+            ureg_set_next_shader_processor(
+                  ureg, pipe_shader_type_from_mesa((gl_shader_stage)i));
             break;
          }
       }
@@ -6707,7 +6801,7 @@ get_mesa_program_tgsi(struct gl_context *ctx,
    struct gl_shader_compiler_options *options =
          &ctx->Const.ShaderCompilerOptions[shader->Stage];
    struct pipe_screen *pscreen = ctx->st->pipe->screen;
-   enum pipe_shader_type ptarget = st_shader_stage_to_ptarget(shader->Stage);
+   enum pipe_shader_type ptarget = pipe_shader_type_from_mesa(shader->Stage);
    unsigned skip_merge_registers;
 
    validate_ir_tree(shader->ir);
@@ -6958,7 +7052,7 @@ st_link_shader(struct gl_context *ctx, struct gl_shader_program *prog)
       gl_shader_stage stage = shader->Stage;
       const struct gl_shader_compiler_options *options =
             &ctx->Const.ShaderCompilerOptions[stage];
-      enum pipe_shader_type ptarget = st_shader_stage_to_ptarget(stage);
+      enum pipe_shader_type ptarget = pipe_shader_type_from_mesa(stage);
       bool have_dround = pscreen->get_shader_param(pscreen, ptarget,
                                                    PIPE_SHADER_CAP_TGSI_DROUND_SUPPORTED);
       bool have_dfrexp = pscreen->get_shader_param(pscreen, ptarget,
@@ -7075,7 +7169,7 @@ st_link_shader(struct gl_context *ctx, struct gl_shader_program *prog)
          continue;
 
       enum pipe_shader_type ptarget =
-         st_shader_stage_to_ptarget(shader->Stage);
+         pipe_shader_type_from_mesa(shader->Stage);
       enum pipe_shader_ir preferred_ir = (enum pipe_shader_ir)
          pscreen->get_shader_param(pscreen, ptarget,
                                    PIPE_SHADER_CAP_PREFERRED_IR);