1 /* Copyright © 2011 Intel Corporation
3 * Permission is hereby granted, free of charge, to any person obtaining a
4 * copy of this software and associated documentation files (the "Software"),
5 * to deal in the Software without restriction, including without limitation
6 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
7 * and/or sell copies of the Software, and to permit persons to whom the
8 * Software is furnished to do so, subject to the following conditions:
10 * The above copyright notice and this permission notice (including the next
11 * paragraph) shall be included in all copies or substantial portions of the
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
17 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
19 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
27 #include "main/macros.h"
28 #include "program/prog_print.h"
29 #include "program/prog_parameter.h"
35 vec4_instruction::get_dst(void)
37 struct brw_reg brw_reg
;
41 brw_reg
= brw_vec8_grf(dst
.reg
+ dst
.reg_offset
, 0);
42 brw_reg
= retype(brw_reg
, dst
.type
);
43 brw_reg
.dw1
.bits
.writemask
= dst
.writemask
;
47 brw_reg
= brw_message_reg(dst
.reg
+ dst
.reg_offset
);
48 brw_reg
= retype(brw_reg
, dst
.type
);
49 brw_reg
.dw1
.bits
.writemask
= dst
.writemask
;
53 brw_reg
= dst
.fixed_hw_reg
;
57 brw_reg
= brw_null_reg();
61 assert(!"not reached");
62 brw_reg
= brw_null_reg();
69 vec4_instruction::get_src(int i
)
71 struct brw_reg brw_reg
;
73 switch (src
[i
].file
) {
75 brw_reg
= brw_vec8_grf(src
[i
].reg
+ src
[i
].reg_offset
, 0);
76 brw_reg
= retype(brw_reg
, src
[i
].type
);
77 brw_reg
.dw1
.bits
.swizzle
= src
[i
].swizzle
;
79 brw_reg
= brw_abs(brw_reg
);
81 brw_reg
= negate(brw_reg
);
85 switch (src
[i
].type
) {
86 case BRW_REGISTER_TYPE_F
:
87 brw_reg
= brw_imm_f(src
[i
].imm
.f
);
89 case BRW_REGISTER_TYPE_D
:
90 brw_reg
= brw_imm_d(src
[i
].imm
.i
);
92 case BRW_REGISTER_TYPE_UD
:
93 brw_reg
= brw_imm_ud(src
[i
].imm
.u
);
96 assert(!"not reached");
97 brw_reg
= brw_null_reg();
103 brw_reg
= stride(brw_vec4_grf(1 + (src
[i
].reg
+ src
[i
].reg_offset
) / 2,
104 ((src
[i
].reg
+ src
[i
].reg_offset
) % 2) * 4),
106 brw_reg
= retype(brw_reg
, src
[i
].type
);
107 brw_reg
.dw1
.bits
.swizzle
= src
[i
].swizzle
;
109 brw_reg
= brw_abs(brw_reg
);
111 brw_reg
= negate(brw_reg
);
113 /* This should have been moved to pull constants. */
114 assert(!src
[i
].reladdr
);
118 brw_reg
= src
[i
].fixed_hw_reg
;
122 /* Probably unused. */
123 brw_reg
= brw_null_reg();
127 assert(!"not reached");
128 brw_reg
= brw_null_reg();
135 vec4_generator::vec4_generator(struct brw_context
*brw
,
136 struct gl_shader_program
*shader_prog
,
137 struct gl_program
*prog
,
138 struct brw_vec4_prog_data
*prog_data
,
141 : brw(brw
), shader_prog(shader_prog
), prog(prog
), prog_data(prog_data
),
142 mem_ctx(mem_ctx
), debug_flag(debug_flag
)
144 shader
= shader_prog
? shader_prog
->_LinkedShaders
[MESA_SHADER_VERTEX
] : NULL
;
146 p
= rzalloc(mem_ctx
, struct brw_compile
);
147 brw_init_compile(brw
, p
, mem_ctx
);
150 vec4_generator::~vec4_generator()
155 vec4_generator::generate_math1_gen4(vec4_instruction
*inst
,
161 brw_math_function(inst
->opcode
),
164 BRW_MATH_DATA_VECTOR
,
165 BRW_MATH_PRECISION_FULL
);
169 check_gen6_math_src_arg(struct brw_reg src
)
171 /* Source swizzles are ignored. */
174 assert(src
.dw1
.bits
.swizzle
== BRW_SWIZZLE_XYZW
);
178 vec4_generator::generate_math1_gen6(vec4_instruction
*inst
,
182 /* Can't do writemask because math can't be align16. */
183 assert(dst
.dw1
.bits
.writemask
== WRITEMASK_XYZW
);
184 check_gen6_math_src_arg(src
);
186 brw_set_access_mode(p
, BRW_ALIGN_1
);
189 brw_math_function(inst
->opcode
),
192 BRW_MATH_DATA_SCALAR
,
193 BRW_MATH_PRECISION_FULL
);
194 brw_set_access_mode(p
, BRW_ALIGN_16
);
198 vec4_generator::generate_math2_gen7(vec4_instruction
*inst
,
205 brw_math_function(inst
->opcode
),
210 vec4_generator::generate_math2_gen6(vec4_instruction
*inst
,
215 /* Can't do writemask because math can't be align16. */
216 assert(dst
.dw1
.bits
.writemask
== WRITEMASK_XYZW
);
217 /* Source swizzles are ignored. */
218 check_gen6_math_src_arg(src0
);
219 check_gen6_math_src_arg(src1
);
221 brw_set_access_mode(p
, BRW_ALIGN_1
);
224 brw_math_function(inst
->opcode
),
226 brw_set_access_mode(p
, BRW_ALIGN_16
);
230 vec4_generator::generate_math2_gen4(vec4_instruction
*inst
,
235 /* From the Ironlake PRM, Volume 4, Part 1, Section 6.1.13
238 * "Operand0[7]. For the INT DIV functions, this operand is the
241 * "Operand1[7]. For the INT DIV functions, this operand is the
244 bool is_int_div
= inst
->opcode
!= SHADER_OPCODE_POW
;
245 struct brw_reg
&op0
= is_int_div
? src1
: src0
;
246 struct brw_reg
&op1
= is_int_div
? src0
: src1
;
248 brw_push_insn_state(p
);
249 brw_set_saturate(p
, false);
250 brw_set_predicate_control(p
, BRW_PREDICATE_NONE
);
251 brw_MOV(p
, retype(brw_message_reg(inst
->base_mrf
+ 1), op1
.type
), op1
);
252 brw_pop_insn_state(p
);
256 brw_math_function(inst
->opcode
),
259 BRW_MATH_DATA_VECTOR
,
260 BRW_MATH_PRECISION_FULL
);
264 vec4_generator::generate_tex(vec4_instruction
*inst
,
271 switch (inst
->opcode
) {
272 case SHADER_OPCODE_TEX
:
273 case SHADER_OPCODE_TXL
:
274 if (inst
->shadow_compare
) {
275 msg_type
= GEN5_SAMPLER_MESSAGE_SAMPLE_LOD_COMPARE
;
277 msg_type
= GEN5_SAMPLER_MESSAGE_SAMPLE_LOD
;
280 case SHADER_OPCODE_TXD
:
281 if (inst
->shadow_compare
) {
282 /* Gen7.5+. Otherwise, lowered by brw_lower_texture_gradients(). */
283 assert(brw
->is_haswell
);
284 msg_type
= HSW_SAMPLER_MESSAGE_SAMPLE_DERIV_COMPARE
;
286 msg_type
= GEN5_SAMPLER_MESSAGE_SAMPLE_DERIVS
;
289 case SHADER_OPCODE_TXF
:
290 msg_type
= GEN5_SAMPLER_MESSAGE_SAMPLE_LD
;
292 case SHADER_OPCODE_TXF_MS
:
294 msg_type
= GEN7_SAMPLER_MESSAGE_SAMPLE_LD2DMS
;
296 msg_type
= GEN5_SAMPLER_MESSAGE_SAMPLE_LD
;
298 case SHADER_OPCODE_TXS
:
299 msg_type
= GEN5_SAMPLER_MESSAGE_SAMPLE_RESINFO
;
302 assert(!"should not get here: invalid VS texture opcode");
306 switch (inst
->opcode
) {
307 case SHADER_OPCODE_TEX
:
308 case SHADER_OPCODE_TXL
:
309 if (inst
->shadow_compare
) {
310 msg_type
= BRW_SAMPLER_MESSAGE_SIMD4X2_SAMPLE_LOD_COMPARE
;
311 assert(inst
->mlen
== 3);
313 msg_type
= BRW_SAMPLER_MESSAGE_SIMD4X2_SAMPLE_LOD
;
314 assert(inst
->mlen
== 2);
317 case SHADER_OPCODE_TXD
:
318 /* There is no sample_d_c message; comparisons are done manually. */
319 msg_type
= BRW_SAMPLER_MESSAGE_SIMD4X2_SAMPLE_GRADIENTS
;
320 assert(inst
->mlen
== 4);
322 case SHADER_OPCODE_TXF
:
323 msg_type
= BRW_SAMPLER_MESSAGE_SIMD4X2_LD
;
324 assert(inst
->mlen
== 2);
326 case SHADER_OPCODE_TXS
:
327 msg_type
= BRW_SAMPLER_MESSAGE_SIMD4X2_RESINFO
;
328 assert(inst
->mlen
== 2);
331 assert(!"should not get here: invalid VS texture opcode");
336 assert(msg_type
!= -1);
338 /* Load the message header if present. If there's a texture offset, we need
339 * to set it up explicitly and load the offset bitfield. Otherwise, we can
340 * use an implied move from g0 to the first message register.
342 if (inst
->texture_offset
) {
343 /* Explicitly set up the message header by copying g0 to the MRF. */
344 brw_push_insn_state(p
);
345 brw_set_mask_control(p
, BRW_MASK_DISABLE
);
346 brw_MOV(p
, retype(brw_message_reg(inst
->base_mrf
), BRW_REGISTER_TYPE_UD
),
347 retype(brw_vec8_grf(0, 0), BRW_REGISTER_TYPE_UD
));
349 /* Then set the offset bits in DWord 2. */
350 brw_set_access_mode(p
, BRW_ALIGN_1
);
352 retype(brw_vec1_reg(BRW_MESSAGE_REGISTER_FILE
, inst
->base_mrf
, 2),
353 BRW_REGISTER_TYPE_UD
),
354 brw_imm_uw(inst
->texture_offset
));
355 brw_pop_insn_state(p
);
356 } else if (inst
->header_present
) {
357 /* Set up an implied move from g0 to the MRF. */
358 src
= brw_vec8_grf(0, 0);
361 uint32_t return_format
;
364 case BRW_REGISTER_TYPE_D
:
365 return_format
= BRW_SAMPLER_RETURN_FORMAT_SINT32
;
367 case BRW_REGISTER_TYPE_UD
:
368 return_format
= BRW_SAMPLER_RETURN_FORMAT_UINT32
;
371 return_format
= BRW_SAMPLER_RETURN_FORMAT_FLOAT32
;
379 SURF_INDEX_VS_TEXTURE(inst
->sampler
),
382 1, /* response length */
384 inst
->header_present
,
385 BRW_SAMPLER_SIMD_MODE_SIMD4X2
,
390 vec4_generator::generate_urb_write(vec4_instruction
*inst
)
393 brw_null_reg(), /* dest */
394 inst
->base_mrf
, /* starting mrf reg nr */
395 brw_vec8_grf(0, 0), /* src */
396 false, /* allocate */
399 0, /* response len */
401 inst
->eot
, /* writes complete */
402 inst
->offset
, /* urb destination offset */
403 BRW_URB_SWIZZLE_INTERLEAVE
);
407 vec4_generator::generate_oword_dual_block_offsets(struct brw_reg m1
,
408 struct brw_reg index
)
410 int second_vertex_offset
;
413 second_vertex_offset
= 1;
415 second_vertex_offset
= 16;
417 m1
= retype(m1
, BRW_REGISTER_TYPE_D
);
419 /* Set up M1 (message payload). Only the block offsets in M1.0 and
420 * M1.4 are used, and the rest are ignored.
422 struct brw_reg m1_0
= suboffset(vec1(m1
), 0);
423 struct brw_reg m1_4
= suboffset(vec1(m1
), 4);
424 struct brw_reg index_0
= suboffset(vec1(index
), 0);
425 struct brw_reg index_4
= suboffset(vec1(index
), 4);
427 brw_push_insn_state(p
);
428 brw_set_mask_control(p
, BRW_MASK_DISABLE
);
429 brw_set_access_mode(p
, BRW_ALIGN_1
);
431 brw_MOV(p
, m1_0
, index_0
);
433 if (index
.file
== BRW_IMMEDIATE_VALUE
) {
434 index_4
.dw1
.ud
+= second_vertex_offset
;
435 brw_MOV(p
, m1_4
, index_4
);
437 brw_ADD(p
, m1_4
, index_4
, brw_imm_d(second_vertex_offset
));
440 brw_pop_insn_state(p
);
444 vec4_generator::generate_unpack_flags(vec4_instruction
*inst
,
447 brw_push_insn_state(p
);
448 brw_set_mask_control(p
, BRW_MASK_DISABLE
);
449 brw_set_access_mode(p
, BRW_ALIGN_1
);
451 struct brw_reg flags
= brw_flag_reg(0, 0);
452 struct brw_reg dst_0
= suboffset(vec1(dst
), 0);
453 struct brw_reg dst_4
= suboffset(vec1(dst
), 4);
455 brw_AND(p
, dst_0
, flags
, brw_imm_ud(0x0f));
456 brw_AND(p
, dst_4
, flags
, brw_imm_ud(0xf0));
457 brw_SHR(p
, dst_4
, dst_4
, brw_imm_ud(4));
459 brw_pop_insn_state(p
);
463 vec4_generator::generate_scratch_read(vec4_instruction
*inst
,
465 struct brw_reg index
)
467 struct brw_reg header
= brw_vec8_grf(0, 0);
469 gen6_resolve_implied_move(p
, &header
, inst
->base_mrf
);
471 generate_oword_dual_block_offsets(brw_message_reg(inst
->base_mrf
+ 1),
477 msg_type
= GEN6_DATAPORT_READ_MESSAGE_OWORD_DUAL_BLOCK_READ
;
478 else if (brw
->gen
== 5 || brw
->is_g4x
)
479 msg_type
= G45_DATAPORT_READ_MESSAGE_OWORD_DUAL_BLOCK_READ
;
481 msg_type
= BRW_DATAPORT_READ_MESSAGE_OWORD_DUAL_BLOCK_READ
;
483 /* Each of the 8 channel enables is considered for whether each
486 struct brw_instruction
*send
= brw_next_insn(p
, BRW_OPCODE_SEND
);
487 brw_set_dest(p
, send
, dst
);
488 brw_set_src0(p
, send
, header
);
490 send
->header
.destreg__conditionalmod
= inst
->base_mrf
;
491 brw_set_dp_read_message(p
, send
,
492 255, /* binding table index: stateless access */
493 BRW_DATAPORT_OWORD_DUAL_BLOCK_1OWORD
,
495 BRW_DATAPORT_READ_TARGET_RENDER_CACHE
,
497 true, /* header_present */
502 vec4_generator::generate_scratch_write(vec4_instruction
*inst
,
505 struct brw_reg index
)
507 struct brw_reg header
= brw_vec8_grf(0, 0);
510 /* If the instruction is predicated, we'll predicate the send, not
513 brw_set_predicate_control(p
, false);
515 gen6_resolve_implied_move(p
, &header
, inst
->base_mrf
);
517 generate_oword_dual_block_offsets(brw_message_reg(inst
->base_mrf
+ 1),
521 retype(brw_message_reg(inst
->base_mrf
+ 2), BRW_REGISTER_TYPE_D
),
522 retype(src
, BRW_REGISTER_TYPE_D
));
527 msg_type
= GEN7_DATAPORT_WRITE_MESSAGE_OWORD_DUAL_BLOCK_WRITE
;
528 else if (brw
->gen
== 6)
529 msg_type
= GEN6_DATAPORT_WRITE_MESSAGE_OWORD_DUAL_BLOCK_WRITE
;
531 msg_type
= BRW_DATAPORT_WRITE_MESSAGE_OWORD_DUAL_BLOCK_WRITE
;
533 brw_set_predicate_control(p
, inst
->predicate
);
535 /* Pre-gen6, we have to specify write commits to ensure ordering
536 * between reads and writes within a thread. Afterwards, that's
537 * guaranteed and write commits only matter for inter-thread
541 write_commit
= false;
543 /* The visitor set up our destination register to be g0. This
544 * means that when the next read comes along, we will end up
545 * reading from g0 and causing a block on the write commit. For
546 * write-after-read, we are relying on the value of the previous
547 * read being used (and thus blocking on completion) before our
548 * write is executed. This means we have to be careful in
549 * instruction scheduling to not violate this assumption.
554 /* Each of the 8 channel enables is considered for whether each
557 struct brw_instruction
*send
= brw_next_insn(p
, BRW_OPCODE_SEND
);
558 brw_set_dest(p
, send
, dst
);
559 brw_set_src0(p
, send
, header
);
561 send
->header
.destreg__conditionalmod
= inst
->base_mrf
;
562 brw_set_dp_write_message(p
, send
,
563 255, /* binding table index: stateless access */
564 BRW_DATAPORT_OWORD_DUAL_BLOCK_1OWORD
,
567 true, /* header present */
568 false, /* not a render target write */
569 write_commit
, /* rlen */
575 vec4_generator::generate_pull_constant_load(vec4_instruction
*inst
,
577 struct brw_reg index
,
578 struct brw_reg offset
)
580 assert(brw
->gen
<= 7);
581 assert(index
.file
== BRW_IMMEDIATE_VALUE
&&
582 index
.type
== BRW_REGISTER_TYPE_UD
);
583 uint32_t surf_index
= index
.dw1
.ud
;
585 struct brw_reg header
= brw_vec8_grf(0, 0);
587 gen6_resolve_implied_move(p
, &header
, inst
->base_mrf
);
589 brw_MOV(p
, retype(brw_message_reg(inst
->base_mrf
+ 1), BRW_REGISTER_TYPE_D
),
595 msg_type
= GEN6_DATAPORT_READ_MESSAGE_OWORD_DUAL_BLOCK_READ
;
596 else if (brw
->gen
== 5 || brw
->is_g4x
)
597 msg_type
= G45_DATAPORT_READ_MESSAGE_OWORD_DUAL_BLOCK_READ
;
599 msg_type
= BRW_DATAPORT_READ_MESSAGE_OWORD_DUAL_BLOCK_READ
;
601 /* Each of the 8 channel enables is considered for whether each
604 struct brw_instruction
*send
= brw_next_insn(p
, BRW_OPCODE_SEND
);
605 brw_set_dest(p
, send
, dst
);
606 brw_set_src0(p
, send
, header
);
608 send
->header
.destreg__conditionalmod
= inst
->base_mrf
;
609 brw_set_dp_read_message(p
, send
,
611 BRW_DATAPORT_OWORD_DUAL_BLOCK_1OWORD
,
613 BRW_DATAPORT_READ_TARGET_DATA_CACHE
,
615 true, /* header_present */
620 vec4_generator::generate_pull_constant_load_gen7(vec4_instruction
*inst
,
622 struct brw_reg surf_index
,
623 struct brw_reg offset
)
625 assert(surf_index
.file
== BRW_IMMEDIATE_VALUE
&&
626 surf_index
.type
== BRW_REGISTER_TYPE_UD
);
628 brw_instruction
*insn
= brw_next_insn(p
, BRW_OPCODE_SEND
);
629 brw_set_dest(p
, insn
, dst
);
630 brw_set_src0(p
, insn
, offset
);
631 brw_set_sampler_message(p
, insn
,
633 0, /* LD message ignores sampler unit */
634 GEN5_SAMPLER_MESSAGE_SAMPLE_LD
,
637 false, /* no header */
638 BRW_SAMPLER_SIMD_MODE_SIMD4X2
,
643 * Generate assembly for a Vec4 IR instruction.
645 * \param instruction The Vec4 IR instruction to generate code for.
646 * \param dst The destination register.
647 * \param src An array of up to three source registers.
650 vec4_generator::generate_vec4_instruction(vec4_instruction
*instruction
,
654 vec4_instruction
*inst
= (vec4_instruction
*) instruction
;
656 switch (inst
->opcode
) {
658 brw_MOV(p
, dst
, src
[0]);
661 brw_ADD(p
, dst
, src
[0], src
[1]);
664 brw_MUL(p
, dst
, src
[0], src
[1]);
666 case BRW_OPCODE_MACH
:
667 brw_set_acc_write_control(p
, 1);
668 brw_MACH(p
, dst
, src
[0], src
[1]);
669 brw_set_acc_write_control(p
, 0);
673 brw_MAD(p
, dst
, src
[0], src
[1], src
[2]);
677 brw_FRC(p
, dst
, src
[0]);
679 case BRW_OPCODE_RNDD
:
680 brw_RNDD(p
, dst
, src
[0]);
682 case BRW_OPCODE_RNDE
:
683 brw_RNDE(p
, dst
, src
[0]);
685 case BRW_OPCODE_RNDZ
:
686 brw_RNDZ(p
, dst
, src
[0]);
690 brw_AND(p
, dst
, src
[0], src
[1]);
693 brw_OR(p
, dst
, src
[0], src
[1]);
696 brw_XOR(p
, dst
, src
[0], src
[1]);
699 brw_NOT(p
, dst
, src
[0]);
702 brw_ASR(p
, dst
, src
[0], src
[1]);
705 brw_SHR(p
, dst
, src
[0], src
[1]);
708 brw_SHL(p
, dst
, src
[0], src
[1]);
712 brw_CMP(p
, dst
, inst
->conditional_mod
, src
[0], src
[1]);
715 brw_SEL(p
, dst
, src
[0], src
[1]);
719 brw_DPH(p
, dst
, src
[0], src
[1]);
723 brw_DP4(p
, dst
, src
[0], src
[1]);
727 brw_DP3(p
, dst
, src
[0], src
[1]);
731 brw_DP2(p
, dst
, src
[0], src
[1]);
734 case BRW_OPCODE_F32TO16
:
735 brw_F32TO16(p
, dst
, src
[0]);
738 case BRW_OPCODE_F16TO32
:
739 brw_F16TO32(p
, dst
, src
[0]);
743 brw_LRP(p
, dst
, src
[0], src
[1], src
[2]);
746 case BRW_OPCODE_BFREV
:
747 /* BFREV only supports UD type for src and dst. */
748 brw_BFREV(p
, retype(dst
, BRW_REGISTER_TYPE_UD
),
749 retype(src
[0], BRW_REGISTER_TYPE_UD
));
752 /* FBH only supports UD type for dst. */
753 brw_FBH(p
, retype(dst
, BRW_REGISTER_TYPE_UD
), src
[0]);
756 /* FBL only supports UD type for dst. */
757 brw_FBL(p
, retype(dst
, BRW_REGISTER_TYPE_UD
), src
[0]);
759 case BRW_OPCODE_CBIT
:
760 /* CBIT only supports UD type for dst. */
761 brw_CBIT(p
, retype(dst
, BRW_REGISTER_TYPE_UD
), src
[0]);
765 brw_BFE(p
, dst
, src
[0], src
[1], src
[2]);
768 case BRW_OPCODE_BFI1
:
769 brw_BFI1(p
, dst
, src
[0], src
[1]);
771 case BRW_OPCODE_BFI2
:
772 brw_BFI2(p
, dst
, src
[0], src
[1], src
[2]);
776 if (inst
->src
[0].file
!= BAD_FILE
) {
777 /* The instruction has an embedded compare (only allowed on gen6) */
778 assert(brw
->gen
== 6);
779 gen6_IF(p
, inst
->conditional_mod
, src
[0], src
[1]);
781 struct brw_instruction
*brw_inst
= brw_IF(p
, BRW_EXECUTE_8
);
782 brw_inst
->header
.predicate_control
= inst
->predicate
;
786 case BRW_OPCODE_ELSE
:
789 case BRW_OPCODE_ENDIF
:
794 brw_DO(p
, BRW_EXECUTE_8
);
797 case BRW_OPCODE_BREAK
:
799 brw_set_predicate_control(p
, BRW_PREDICATE_NONE
);
801 case BRW_OPCODE_CONTINUE
:
802 /* FINISHME: We need to write the loop instruction support still. */
807 brw_set_predicate_control(p
, BRW_PREDICATE_NONE
);
810 case BRW_OPCODE_WHILE
:
814 case SHADER_OPCODE_RCP
:
815 case SHADER_OPCODE_RSQ
:
816 case SHADER_OPCODE_SQRT
:
817 case SHADER_OPCODE_EXP2
:
818 case SHADER_OPCODE_LOG2
:
819 case SHADER_OPCODE_SIN
:
820 case SHADER_OPCODE_COS
:
822 generate_math1_gen6(inst
, dst
, src
[0]);
824 /* Also works for Gen7. */
825 generate_math1_gen4(inst
, dst
, src
[0]);
829 case SHADER_OPCODE_POW
:
830 case SHADER_OPCODE_INT_QUOTIENT
:
831 case SHADER_OPCODE_INT_REMAINDER
:
833 generate_math2_gen7(inst
, dst
, src
[0], src
[1]);
834 } else if (brw
->gen
== 6) {
835 generate_math2_gen6(inst
, dst
, src
[0], src
[1]);
837 generate_math2_gen4(inst
, dst
, src
[0], src
[1]);
841 case SHADER_OPCODE_TEX
:
842 case SHADER_OPCODE_TXD
:
843 case SHADER_OPCODE_TXF
:
844 case SHADER_OPCODE_TXF_MS
:
845 case SHADER_OPCODE_TXL
:
846 case SHADER_OPCODE_TXS
:
847 generate_tex(inst
, dst
, src
[0]);
850 case VS_OPCODE_URB_WRITE
:
851 generate_urb_write(inst
);
854 case VS_OPCODE_SCRATCH_READ
:
855 generate_scratch_read(inst
, dst
, src
[0]);
858 case VS_OPCODE_SCRATCH_WRITE
:
859 generate_scratch_write(inst
, dst
, src
[0], src
[1]);
862 case VS_OPCODE_PULL_CONSTANT_LOAD
:
863 generate_pull_constant_load(inst
, dst
, src
[0], src
[1]);
866 case VS_OPCODE_PULL_CONSTANT_LOAD_GEN7
:
867 generate_pull_constant_load_gen7(inst
, dst
, src
[0], src
[1]);
870 case SHADER_OPCODE_SHADER_TIME_ADD
:
871 brw_shader_time_add(p
, src
[0], SURF_INDEX_VS_SHADER_TIME
);
874 case VS_OPCODE_UNPACK_FLAGS_SIMD4X2
:
875 generate_unpack_flags(inst
, dst
);
879 if (inst
->opcode
< (int) ARRAY_SIZE(opcode_descs
)) {
880 _mesa_problem(ctx
, "Unsupported opcode in `%s' in VS\n",
881 opcode_descs
[inst
->opcode
].name
);
883 _mesa_problem(ctx
, "Unsupported opcode %d in VS", inst
->opcode
);
890 vec4_generator::generate_code(exec_list
*instructions
)
892 int last_native_insn_offset
= 0;
893 const char *last_annotation_string
= NULL
;
894 const void *last_annotation_ir
= NULL
;
896 if (unlikely(debug_flag
)) {
898 printf("Native code for vertex shader %d:\n", shader_prog
->Name
);
900 printf("Native code for vertex program %d:\n", prog
->Id
);
904 foreach_list(node
, instructions
) {
905 vec4_instruction
*inst
= (vec4_instruction
*)node
;
906 struct brw_reg src
[3], dst
;
908 if (unlikely(debug_flag
)) {
909 if (last_annotation_ir
!= inst
->ir
) {
910 last_annotation_ir
= inst
->ir
;
911 if (last_annotation_ir
) {
914 ((ir_instruction
*) last_annotation_ir
)->print();
916 const prog_instruction
*vpi
;
917 vpi
= (const prog_instruction
*) inst
->ir
;
918 printf("%d: ", (int)(vpi
- prog
->Instructions
));
919 _mesa_fprint_instruction_opt(stdout
, vpi
, 0,
920 PROG_PRINT_DEBUG
, NULL
);
925 if (last_annotation_string
!= inst
->annotation
) {
926 last_annotation_string
= inst
->annotation
;
927 if (last_annotation_string
)
928 printf(" %s\n", last_annotation_string
);
932 for (unsigned int i
= 0; i
< 3; i
++) {
933 src
[i
] = inst
->get_src(i
);
935 dst
= inst
->get_dst();
937 brw_set_conditionalmod(p
, inst
->conditional_mod
);
938 brw_set_predicate_control(p
, inst
->predicate
);
939 brw_set_predicate_inverse(p
, inst
->predicate_inverse
);
940 brw_set_saturate(p
, inst
->saturate
);
941 brw_set_mask_control(p
, inst
->force_writemask_all
);
943 unsigned pre_emit_nr_insn
= p
->nr_insn
;
945 generate_vec4_instruction(inst
, dst
, src
);
947 if (inst
->no_dd_clear
|| inst
->no_dd_check
) {
948 assert(p
->nr_insn
== pre_emit_nr_insn
+ 1 ||
949 !"no_dd_check or no_dd_clear set for IR emitting more "
950 "than 1 instruction");
952 struct brw_instruction
*last
= &p
->store
[pre_emit_nr_insn
];
954 if (inst
->no_dd_clear
)
955 last
->header
.dependency_control
|= BRW_DEPENDENCY_NOTCLEARED
;
956 if (inst
->no_dd_check
)
957 last
->header
.dependency_control
|= BRW_DEPENDENCY_NOTCHECKED
;
960 if (unlikely(debug_flag
)) {
961 brw_dump_compile(p
, stdout
,
962 last_native_insn_offset
, p
->next_insn_offset
);
965 last_native_insn_offset
= p
->next_insn_offset
;
968 if (unlikely(debug_flag
)) {
974 /* OK, while the INTEL_DEBUG=vs above is very nice for debugging VS
975 * emit issues, it doesn't get the jump distances into the output,
976 * which is often something we want to debug. So this is here in
977 * case you're doing that.
979 if (0 && unlikely(debug_flag
)) {
980 brw_dump_compile(p
, stdout
, 0, p
->next_insn_offset
);
985 vec4_generator::generate_assembly(exec_list
*instructions
,
986 unsigned *assembly_size
)
988 brw_set_access_mode(p
, BRW_ALIGN_16
);
989 generate_code(instructions
);
990 return brw_get_program(p
, assembly_size
);
993 } /* namespace brw */