1 /**************************************************************************
3 * Copyright 2009 VMware, Inc.
4 * Copyright 2007-2008 Tungsten Graphics, Inc., Cedar Park, Texas.
7 * Permission is hereby granted, free of charge, to any person obtaining a
8 * copy of this software and associated documentation files (the
9 * "Software"), to deal in the Software without restriction, including
10 * without limitation the rights to use, copy, modify, merge, publish,
11 * distribute, sub license, and/or sell copies of the Software, and to
12 * permit persons to whom the Software is furnished to do so, subject to
13 * the following conditions:
15 * The above copyright notice and this permission notice (including the
16 * next paragraph) shall be included in all copies or substantial portions
19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
20 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
21 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
22 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
23 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
24 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
25 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
27 **************************************************************************/
31 * TGSI to LLVM IR translation -- SoA.
33 * @author Jose Fonseca <jfonseca@vmware.com>
35 * Based on tgsi_sse2.c code written by Michal Krol, Keith Whitwell,
36 * Brian Paul, and others.
39 #include "pipe/p_config.h"
40 #include "pipe/p_shader_tokens.h"
41 #include "util/u_debug.h"
42 #include "util/u_math.h"
43 #include "util/u_memory.h"
44 #include "tgsi/tgsi_dump.h"
45 #include "tgsi/tgsi_info.h"
46 #include "tgsi/tgsi_parse.h"
47 #include "tgsi/tgsi_util.h"
48 #include "tgsi/tgsi_exec.h"
49 #include "tgsi/tgsi_scan.h"
50 #include "lp_bld_type.h"
51 #include "lp_bld_const.h"
52 #include "lp_bld_arit.h"
53 #include "lp_bld_logic.h"
54 #include "lp_bld_swizzle.h"
55 #include "lp_bld_flow.h"
56 #include "lp_bld_tgsi.h"
57 #include "lp_bld_debug.h"
60 #define LP_MAX_TEMPS 256
61 #define LP_MAX_IMMEDIATES 256
64 #define FOR_EACH_CHANNEL( CHAN )\
65 for (CHAN = 0; CHAN < NUM_CHANNELS; CHAN++)
67 #define IS_DST0_CHANNEL_ENABLED( INST, CHAN )\
68 ((INST)->Dst[0].Register.WriteMask & (1 << (CHAN)))
70 #define IF_IS_DST0_CHANNEL_ENABLED( INST, CHAN )\
71 if (IS_DST0_CHANNEL_ENABLED( INST, CHAN ))
73 #define FOR_EACH_DST0_ENABLED_CHANNEL( INST, CHAN )\
74 FOR_EACH_CHANNEL( CHAN )\
75 IF_IS_DST0_CHANNEL_ENABLED( INST, CHAN )
82 #define QUAD_TOP_LEFT 0
83 #define QUAD_TOP_RIGHT 1
84 #define QUAD_BOTTOM_LEFT 2
85 #define QUAD_BOTTOM_RIGHT 3
87 #define LP_TGSI_MAX_NESTING 16
90 struct lp_build_context
*bld
;
94 LLVMTypeRef int_vec_type
;
96 LLVMValueRef cond_stack
[LP_TGSI_MAX_NESTING
];
98 LLVMValueRef cond_mask
;
100 LLVMValueRef break_stack
[LP_TGSI_MAX_NESTING
];
101 int break_stack_size
;
102 LLVMValueRef break_mask
;
104 LLVMValueRef cont_stack
[LP_TGSI_MAX_NESTING
];
106 LLVMValueRef cont_mask
;
108 LLVMBasicBlockRef loop_stack
[LP_TGSI_MAX_NESTING
];
110 LLVMBasicBlockRef loop_block
;
113 LLVMValueRef exec_mask
;
116 struct lp_build_tgsi_soa_context
118 struct lp_build_context base
;
120 LLVMValueRef consts_ptr
;
121 const LLVMValueRef
*pos
;
122 const LLVMValueRef (*inputs
)[NUM_CHANNELS
];
123 LLVMValueRef (*outputs
)[NUM_CHANNELS
];
125 struct lp_build_sampler_soa
*sampler
;
127 LLVMValueRef immediates
[LP_MAX_IMMEDIATES
][NUM_CHANNELS
];
128 LLVMValueRef temps
[LP_MAX_TEMPS
][NUM_CHANNELS
];
129 LLVMValueRef addr
[LP_MAX_TEMPS
][NUM_CHANNELS
];
131 /* we allocate an array of temps if we have indirect
132 * addressing and then the temps above is unused */
133 LLVMValueRef temps_array
;
134 boolean has_indirect_addressing
;
136 struct lp_build_mask_context
*mask
;
137 struct lp_exec_mask exec_mask
;
140 static const unsigned char
142 QUAD_TOP_LEFT
, QUAD_TOP_LEFT
,
143 QUAD_BOTTOM_LEFT
, QUAD_BOTTOM_LEFT
146 static const unsigned char
148 QUAD_TOP_RIGHT
, QUAD_TOP_RIGHT
,
149 QUAD_BOTTOM_RIGHT
, QUAD_BOTTOM_RIGHT
152 static const unsigned char
154 QUAD_TOP_LEFT
, QUAD_TOP_RIGHT
,
155 QUAD_TOP_LEFT
, QUAD_TOP_RIGHT
158 static const unsigned char
159 swizzle_bottom
[4] = {
160 QUAD_BOTTOM_LEFT
, QUAD_BOTTOM_RIGHT
,
161 QUAD_BOTTOM_LEFT
, QUAD_BOTTOM_RIGHT
164 static void lp_exec_mask_init(struct lp_exec_mask
*mask
, struct lp_build_context
*bld
)
167 mask
->has_mask
= FALSE
;
168 mask
->cond_stack_size
= 0;
169 mask
->loop_stack_size
= 0;
170 mask
->break_stack_size
= 0;
171 mask
->cont_stack_size
= 0;
173 mask
->int_vec_type
= lp_build_int_vec_type(mask
->bld
->type
);
176 static void lp_exec_mask_update(struct lp_exec_mask
*mask
)
178 if (mask
->loop_stack_size
) {
179 /*for loops we need to update the entire mask at runtime */
181 assert(mask
->break_mask
);
182 tmp
= LLVMBuildAnd(mask
->bld
->builder
,
186 mask
->exec_mask
= LLVMBuildAnd(mask
->bld
->builder
,
191 mask
->exec_mask
= mask
->cond_mask
;
194 mask
->has_mask
= (mask
->cond_stack_size
> 0 ||
195 mask
->loop_stack_size
> 0);
198 static void lp_exec_mask_cond_push(struct lp_exec_mask
*mask
,
201 mask
->cond_stack
[mask
->cond_stack_size
++] = mask
->cond_mask
;
202 mask
->cond_mask
= LLVMBuildBitCast(mask
->bld
->builder
, val
,
203 mask
->int_vec_type
, "");
205 lp_exec_mask_update(mask
);
208 static void lp_exec_mask_cond_invert(struct lp_exec_mask
*mask
)
210 LLVMValueRef prev_mask
= mask
->cond_stack
[mask
->cond_stack_size
- 1];
211 LLVMValueRef inv_mask
= LLVMBuildNot(mask
->bld
->builder
,
212 mask
->cond_mask
, "");
214 /* means that we didn't have any mask before and that
215 * we were fully enabled */
216 if (mask
->cond_stack_size
<= 1) {
217 prev_mask
= LLVMConstAllOnes(mask
->int_vec_type
);
220 mask
->cond_mask
= LLVMBuildAnd(mask
->bld
->builder
,
223 lp_exec_mask_update(mask
);
226 static void lp_exec_mask_cond_pop(struct lp_exec_mask
*mask
)
228 mask
->cond_mask
= mask
->cond_stack
[--mask
->cond_stack_size
];
229 lp_exec_mask_update(mask
);
232 static void lp_exec_bgnloop(struct lp_exec_mask
*mask
)
235 if (mask
->cont_stack_size
== 0)
236 mask
->cont_mask
= LLVMConstAllOnes(mask
->int_vec_type
);
237 if (mask
->break_stack_size
== 0)
238 mask
->break_mask
= LLVMConstAllOnes(mask
->int_vec_type
);
239 if (mask
->cond_stack_size
== 0)
240 mask
->cond_mask
= LLVMConstAllOnes(mask
->int_vec_type
);
242 mask
->break_stack
[mask
->break_stack_size
++] = mask
->break_mask
;
243 mask
->cont_stack
[mask
->cont_stack_size
++] = mask
->cont_mask
;
244 mask
->loop_stack
[mask
->loop_stack_size
++] = mask
->loop_block
;
245 mask
->loop_block
= lp_build_insert_new_block(mask
->bld
->builder
, "bgnloop");
246 LLVMBuildBr(mask
->bld
->builder
, mask
->loop_block
);
247 LLVMPositionBuilderAtEnd(mask
->bld
->builder
, mask
->loop_block
);
249 lp_exec_mask_update(mask
);
252 static void lp_exec_break(struct lp_exec_mask
*mask
)
254 LLVMValueRef exec_mask
= LLVMBuildNot(mask
->bld
->builder
,
258 /* mask->break_stack_size > 1 implies that we encountered a break
259 * statemant already and if that's the case we want to make sure
260 * our mask is a combination of the previous break and the current
262 if (mask
->break_stack_size
> 1) {
263 mask
->break_mask
= LLVMBuildAnd(mask
->bld
->builder
,
265 exec_mask
, "break_full");
267 mask
->break_mask
= exec_mask
;
269 lp_exec_mask_update(mask
);
272 static void lp_exec_continue(struct lp_exec_mask
*mask
)
274 LLVMValueRef exec_mask
= LLVMBuildNot(mask
->bld
->builder
,
278 if (mask
->cont_stack_size
> 1) {
279 mask
->cont_mask
= LLVMBuildAnd(mask
->bld
->builder
,
283 mask
->cont_mask
= exec_mask
;
285 lp_exec_mask_update(mask
);
289 static void lp_exec_endloop(struct lp_exec_mask
*mask
)
291 LLVMBasicBlockRef endloop
;
292 LLVMTypeRef reg_type
= LLVMIntType(mask
->bld
->type
.width
*
293 mask
->bld
->type
.length
);
296 assert(mask
->break_mask
);
298 /* i1cond = (mask == 0) */
299 i1cond
= LLVMBuildICmp(
302 LLVMBuildBitCast(mask
->bld
->builder
, mask
->break_mask
, reg_type
, ""),
303 LLVMConstNull(reg_type
), "");
305 endloop
= lp_build_insert_new_block(mask
->bld
->builder
, "endloop");
307 LLVMBuildCondBr(mask
->bld
->builder
,
308 i1cond
, mask
->loop_block
, endloop
);
310 LLVMPositionBuilderAtEnd(mask
->bld
->builder
, endloop
);
312 mask
->loop_block
= mask
->loop_stack
[--mask
->loop_stack_size
];
313 /* pop the cont mask */
314 if (mask
->cont_stack_size
) {
315 mask
->cont_mask
= mask
->cont_stack
[--mask
->cont_stack_size
];
317 /* pop the break mask */
318 if (mask
->break_stack_size
) {
319 mask
->break_mask
= mask
->break_stack
[--mask
->break_stack_size
];
322 lp_exec_mask_update(mask
);
325 /* stores val into an address pointed to by dst.
326 * mask->exec_mask is used to figure out which bits of val
327 * should be stored into the address
328 * (0 means don't store this bit, 1 means do store).
330 static void lp_exec_mask_store(struct lp_exec_mask
*mask
,
334 if (mask
->has_mask
) {
335 LLVMValueRef real_val
, dst_val
;
337 dst_val
= LLVMBuildLoad(mask
->bld
->builder
, dst
, "");
338 real_val
= lp_build_select(mask
->bld
,
342 LLVMBuildStore(mask
->bld
->builder
, real_val
, dst
);
344 LLVMBuildStore(mask
->bld
->builder
, val
, dst
);
349 emit_ddx(struct lp_build_tgsi_soa_context
*bld
,
352 LLVMValueRef src_left
= lp_build_swizzle1_aos(&bld
->base
, src
, swizzle_left
);
353 LLVMValueRef src_right
= lp_build_swizzle1_aos(&bld
->base
, src
, swizzle_right
);
354 return lp_build_sub(&bld
->base
, src_right
, src_left
);
359 emit_ddy(struct lp_build_tgsi_soa_context
*bld
,
362 LLVMValueRef src_top
= lp_build_swizzle1_aos(&bld
->base
, src
, swizzle_top
);
363 LLVMValueRef src_bottom
= lp_build_swizzle1_aos(&bld
->base
, src
, swizzle_bottom
);
364 return lp_build_sub(&bld
->base
, src_top
, src_bottom
);
368 get_temp_ptr(struct lp_build_tgsi_soa_context
*bld
,
374 if (!bld
->has_indirect_addressing
) {
375 return bld
->temps
[index
][swizzle
];
377 LLVMValueRef lindex
=
378 LLVMConstInt(LLVMInt32Type(), index
*4 + swizzle
, 0);
380 lindex
= lp_build_add(&bld
->base
, lindex
, addr
);
381 return LLVMBuildGEP(bld
->base
.builder
, bld
->temps_array
, &lindex
, 1, "");
390 struct lp_build_tgsi_soa_context
*bld
,
391 const struct tgsi_full_instruction
*inst
,
393 const unsigned chan_index
)
395 const struct tgsi_full_src_register
*reg
= &inst
->Src
[index
];
396 unsigned swizzle
= tgsi_util_get_full_src_register_swizzle( reg
, chan_index
);
406 if (reg
->Register
.Indirect
) {
407 LLVMTypeRef int_vec_type
= lp_build_int_vec_type(bld
->base
.type
);
408 unsigned swizzle
= tgsi_util_get_src_register_swizzle( ®
->Indirect
, chan_index
);
409 addr
= LLVMBuildLoad(bld
->base
.builder
,
410 bld
->addr
[reg
->Indirect
.Index
][swizzle
],
412 /* for indexing we want integers */
413 addr
= LLVMBuildFPToSI(bld
->base
.builder
, addr
,
415 addr
= LLVMBuildExtractElement(bld
->base
.builder
,
416 addr
, LLVMConstInt(LLVMInt32Type(), 0, 0),
418 addr
= lp_build_mul(&bld
->base
, addr
, LLVMConstInt(LLVMInt32Type(), 4, 0));
421 switch (reg
->Register
.File
) {
422 case TGSI_FILE_CONSTANT
: {
423 LLVMValueRef index
= LLVMConstInt(LLVMInt32Type(), reg
->Register
.Index
*4 + swizzle
, 0);
424 LLVMValueRef scalar
, scalar_ptr
;
426 if (reg
->Register
.Indirect
) {
427 /*lp_build_printf(bld->base.builder,
428 "\taddr = %d\n", addr);*/
429 index
= lp_build_add(&bld
->base
, index
, addr
);
431 scalar_ptr
= LLVMBuildGEP(bld
->base
.builder
, bld
->consts_ptr
, &index
, 1, "");
432 scalar
= LLVMBuildLoad(bld
->base
.builder
, scalar_ptr
, "");
434 res
= lp_build_broadcast_scalar(&bld
->base
, scalar
);
438 case TGSI_FILE_IMMEDIATE
:
439 res
= bld
->immediates
[reg
->Register
.Index
][swizzle
];
443 case TGSI_FILE_INPUT
:
444 res
= bld
->inputs
[reg
->Register
.Index
][swizzle
];
448 case TGSI_FILE_TEMPORARY
: {
449 LLVMValueRef temp_ptr
= get_temp_ptr(bld
, reg
->Register
.Index
,
451 reg
->Register
.Indirect
,
453 res
= LLVMBuildLoad(bld
->base
.builder
, temp_ptr
, "");
455 return bld
->base
.undef
;
461 return bld
->base
.undef
;
467 return bld
->base
.undef
;
470 switch( tgsi_util_get_full_src_register_sign_mode( reg
, chan_index
) ) {
471 case TGSI_UTIL_SIGN_CLEAR
:
472 res
= lp_build_abs( &bld
->base
, res
);
475 case TGSI_UTIL_SIGN_SET
:
476 /* TODO: Use bitwese OR for floating point */
477 res
= lp_build_abs( &bld
->base
, res
);
478 res
= LLVMBuildNeg( bld
->base
.builder
, res
, "" );
481 case TGSI_UTIL_SIGN_TOGGLE
:
482 res
= LLVMBuildNeg( bld
->base
.builder
, res
, "" );
485 case TGSI_UTIL_SIGN_KEEP
:
494 * Register fetch with derivatives.
498 struct lp_build_tgsi_soa_context
*bld
,
499 const struct tgsi_full_instruction
*inst
,
501 const unsigned chan_index
,
508 src
= emit_fetch(bld
, inst
, index
, chan_index
);
513 /* TODO: use interpolation coeffs for inputs */
516 *ddx
= emit_ddx(bld
, src
);
519 *ddy
= emit_ddy(bld
, src
);
528 struct lp_build_tgsi_soa_context
*bld
,
529 const struct tgsi_full_instruction
*inst
,
534 const struct tgsi_full_dst_register
*reg
= &inst
->Dst
[index
];
537 switch( inst
->Instruction
.Saturate
) {
541 case TGSI_SAT_ZERO_ONE
:
542 value
= lp_build_max(&bld
->base
, value
, bld
->base
.zero
);
543 value
= lp_build_min(&bld
->base
, value
, bld
->base
.one
);
546 case TGSI_SAT_MINUS_PLUS_ONE
:
547 value
= lp_build_max(&bld
->base
, value
, lp_build_const_vec(bld
->base
.type
, -1.0));
548 value
= lp_build_min(&bld
->base
, value
, bld
->base
.one
);
555 if (reg
->Register
.Indirect
) {
556 LLVMTypeRef int_vec_type
= lp_build_int_vec_type(bld
->base
.type
);
557 unsigned swizzle
= tgsi_util_get_src_register_swizzle( ®
->Indirect
, chan_index
);
558 addr
= LLVMBuildLoad(bld
->base
.builder
,
559 bld
->addr
[reg
->Indirect
.Index
][swizzle
],
561 /* for indexing we want integers */
562 addr
= LLVMBuildFPToSI(bld
->base
.builder
, addr
,
564 addr
= LLVMBuildExtractElement(bld
->base
.builder
,
565 addr
, LLVMConstInt(LLVMInt32Type(), 0, 0),
567 addr
= lp_build_mul(&bld
->base
, addr
, LLVMConstInt(LLVMInt32Type(), 4, 0));
570 switch( reg
->Register
.File
) {
571 case TGSI_FILE_OUTPUT
:
572 lp_exec_mask_store(&bld
->exec_mask
, value
,
573 bld
->outputs
[reg
->Register
.Index
][chan_index
]);
576 case TGSI_FILE_TEMPORARY
: {
577 LLVMValueRef temp_ptr
= get_temp_ptr(bld
, reg
->Register
.Index
,
579 reg
->Register
.Indirect
,
581 lp_exec_mask_store(&bld
->exec_mask
, value
, temp_ptr
);
585 case TGSI_FILE_ADDRESS
:
586 lp_exec_mask_store(&bld
->exec_mask
, value
,
587 bld
->addr
[reg
->Indirect
.Index
][chan_index
]);
590 case TGSI_FILE_PREDICATE
:
602 * High-level instruction translators.
607 emit_tex( struct lp_build_tgsi_soa_context
*bld
,
608 const struct tgsi_full_instruction
*inst
,
609 boolean apply_lodbias
,
613 const uint unit
= inst
->Src
[1].Register
.Index
;
614 LLVMValueRef lodbias
;
615 LLVMValueRef oow
= NULL
;
616 LLVMValueRef coords
[3];
620 switch (inst
->Texture
.Texture
) {
621 case TGSI_TEXTURE_1D
:
624 case TGSI_TEXTURE_2D
:
625 case TGSI_TEXTURE_RECT
:
628 case TGSI_TEXTURE_SHADOW1D
:
629 case TGSI_TEXTURE_SHADOW2D
:
630 case TGSI_TEXTURE_SHADOWRECT
:
631 case TGSI_TEXTURE_3D
:
632 case TGSI_TEXTURE_CUBE
:
641 lodbias
= emit_fetch( bld
, inst
, 0, 3 );
643 lodbias
= bld
->base
.zero
;
646 oow
= emit_fetch( bld
, inst
, 0, 3 );
647 oow
= lp_build_rcp(&bld
->base
, oow
);
650 for (i
= 0; i
< num_coords
; i
++) {
651 coords
[i
] = emit_fetch( bld
, inst
, 0, i
);
653 coords
[i
] = lp_build_mul(&bld
->base
, coords
[i
], oow
);
655 for (i
= num_coords
; i
< 3; i
++) {
656 coords
[i
] = bld
->base
.undef
;
659 bld
->sampler
->emit_fetch_texel(bld
->sampler
,
662 unit
, num_coords
, coords
, lodbias
,
668 * Kill fragment if any of the src register values are negative.
672 struct lp_build_tgsi_soa_context
*bld
,
673 const struct tgsi_full_instruction
*inst
)
675 const struct tgsi_full_src_register
*reg
= &inst
->Src
[0];
676 LLVMValueRef terms
[NUM_CHANNELS
];
680 memset(&terms
, 0, sizeof terms
);
682 FOR_EACH_CHANNEL( chan_index
) {
685 /* Unswizzle channel */
686 swizzle
= tgsi_util_get_full_src_register_swizzle( reg
, chan_index
);
688 /* Check if the component has not been already tested. */
689 assert(swizzle
< NUM_CHANNELS
);
690 if( !terms
[swizzle
] )
691 /* TODO: change the comparison operator instead of setting the sign */
692 terms
[swizzle
] = emit_fetch(bld
, inst
, 0, chan_index
);
696 FOR_EACH_CHANNEL( chan_index
) {
697 if(terms
[chan_index
]) {
698 LLVMValueRef chan_mask
;
701 * If term < 0 then mask = 0 else mask = ~0.
703 chan_mask
= lp_build_cmp(&bld
->base
, PIPE_FUNC_GEQUAL
, terms
[chan_index
], bld
->base
.zero
);
706 mask
= LLVMBuildAnd(bld
->base
.builder
, mask
, chan_mask
, "");
713 lp_build_mask_update(bld
->mask
, mask
);
718 * Predicated fragment kill.
719 * XXX Actually, we do an unconditional kill (as in tgsi_exec.c).
720 * The only predication is the execution mask which will apply if
721 * we're inside a loop or conditional.
724 emit_kilp(struct lp_build_tgsi_soa_context
*bld
,
725 const struct tgsi_full_instruction
*inst
)
729 /* For those channels which are "alive", disable fragment shader
732 if (bld
->exec_mask
.has_mask
) {
733 mask
= LLVMBuildNot(bld
->base
.builder
, bld
->exec_mask
.exec_mask
, "kilp");
736 mask
= bld
->base
.zero
;
739 lp_build_mask_update(bld
->mask
, mask
);
744 struct lp_build_tgsi_soa_context
*bld
,
745 const struct tgsi_full_declaration
*decl
)
747 LLVMTypeRef vec_type
= lp_build_vec_type(bld
->base
.type
);
749 unsigned first
= decl
->Range
.First
;
750 unsigned last
= decl
->Range
.Last
;
753 for (idx
= first
; idx
<= last
; ++idx
) {
754 switch (decl
->Declaration
.File
) {
755 case TGSI_FILE_TEMPORARY
:
756 if (bld
->has_indirect_addressing
) {
757 LLVMValueRef val
= LLVMConstInt(LLVMInt32Type(),
759 bld
->temps_array
= lp_build_array_alloca(bld
->base
.builder
,
762 for (i
= 0; i
< NUM_CHANNELS
; i
++)
763 bld
->temps
[idx
][i
] = lp_build_alloca(bld
->base
.builder
,
768 case TGSI_FILE_OUTPUT
:
769 for (i
= 0; i
< NUM_CHANNELS
; i
++)
770 bld
->outputs
[idx
][i
] = lp_build_alloca(bld
->base
.builder
,
774 case TGSI_FILE_ADDRESS
:
775 for (i
= 0; i
< NUM_CHANNELS
; i
++)
776 bld
->addr
[idx
][i
] = lp_build_alloca(bld
->base
.builder
,
781 /* don't need to declare other vars */
791 * Emit LLVM for one TGSI instruction.
792 * \param return TRUE for success, FALSE otherwise
796 struct lp_build_tgsi_soa_context
*bld
,
797 const struct tgsi_full_instruction
*inst
,
798 const struct tgsi_opcode_info
*info
)
801 LLVMValueRef src0
, src1
, src2
;
802 LLVMValueRef tmp0
, tmp1
, tmp2
;
803 LLVMValueRef tmp3
= NULL
;
804 LLVMValueRef tmp4
= NULL
;
805 LLVMValueRef tmp5
= NULL
;
806 LLVMValueRef tmp6
= NULL
;
807 LLVMValueRef tmp7
= NULL
;
809 LLVMValueRef dst0
[NUM_CHANNELS
];
812 * Stores and write masks are handled in a general fashion after the long
813 * instruction opcode switch statement.
815 * Although not stricitly necessary, we avoid generating instructions for
816 * channels which won't be stored, in cases where's that easy. For some
817 * complex instructions, like texture sampling, it is more convenient to
818 * assume a full writemask and then let LLVM optimization passes eliminate
822 assert(info
->num_dst
<= 1);
824 FOR_EACH_DST0_ENABLED_CHANNEL( inst
, chan_index
) {
825 dst0
[chan_index
] = bld
->base
.undef
;
829 switch (inst
->Instruction
.Opcode
) {
830 case TGSI_OPCODE_ARL
:
831 FOR_EACH_DST0_ENABLED_CHANNEL( inst
, chan_index
) {
832 tmp0
= emit_fetch( bld
, inst
, 0, chan_index
);
833 tmp0
= lp_build_floor(&bld
->base
, tmp0
);
834 dst0
[chan_index
] = tmp0
;
838 case TGSI_OPCODE_MOV
:
839 FOR_EACH_DST0_ENABLED_CHANNEL( inst
, chan_index
) {
840 dst0
[chan_index
] = emit_fetch( bld
, inst
, 0, chan_index
);
844 case TGSI_OPCODE_LIT
:
845 if( IS_DST0_CHANNEL_ENABLED( inst
, CHAN_X
) ) {
846 dst0
[CHAN_X
] = bld
->base
.one
;
848 if( IS_DST0_CHANNEL_ENABLED( inst
, CHAN_Y
) ) {
849 src0
= emit_fetch( bld
, inst
, 0, CHAN_X
);
850 dst0
[CHAN_Y
] = lp_build_max( &bld
->base
, src0
, bld
->base
.zero
);
852 if( IS_DST0_CHANNEL_ENABLED( inst
, CHAN_Z
) ) {
853 /* XMM[1] = SrcReg[0].yyyy */
854 tmp1
= emit_fetch( bld
, inst
, 0, CHAN_Y
);
855 /* XMM[1] = max(XMM[1], 0) */
856 tmp1
= lp_build_max( &bld
->base
, tmp1
, bld
->base
.zero
);
857 /* XMM[2] = SrcReg[0].wwww */
858 tmp2
= emit_fetch( bld
, inst
, 0, CHAN_W
);
859 tmp1
= lp_build_pow( &bld
->base
, tmp1
, tmp2
);
860 tmp0
= emit_fetch( bld
, inst
, 0, CHAN_X
);
861 tmp2
= lp_build_cmp(&bld
->base
, PIPE_FUNC_GREATER
, tmp0
, bld
->base
.zero
);
862 dst0
[CHAN_Z
] = lp_build_select(&bld
->base
, tmp2
, tmp1
, bld
->base
.zero
);
864 if( IS_DST0_CHANNEL_ENABLED( inst
, CHAN_W
) ) {
865 dst0
[CHAN_W
] = bld
->base
.one
;
869 case TGSI_OPCODE_RCP
:
870 /* TGSI_OPCODE_RECIP */
871 src0
= emit_fetch( bld
, inst
, 0, CHAN_X
);
872 res
= lp_build_rcp(&bld
->base
, src0
);
873 FOR_EACH_DST0_ENABLED_CHANNEL( inst
, chan_index
) {
874 dst0
[chan_index
] = res
;
878 case TGSI_OPCODE_RSQ
:
879 /* TGSI_OPCODE_RECIPSQRT */
880 src0
= emit_fetch( bld
, inst
, 0, CHAN_X
);
881 src0
= lp_build_abs(&bld
->base
, src0
);
882 res
= lp_build_rsqrt(&bld
->base
, src0
);
883 FOR_EACH_DST0_ENABLED_CHANNEL( inst
, chan_index
) {
884 dst0
[chan_index
] = res
;
888 case TGSI_OPCODE_EXP
:
889 if (IS_DST0_CHANNEL_ENABLED( inst
, CHAN_X
) ||
890 IS_DST0_CHANNEL_ENABLED( inst
, CHAN_Y
) ||
891 IS_DST0_CHANNEL_ENABLED( inst
, CHAN_Z
)) {
892 LLVMValueRef
*p_exp2_int_part
= NULL
;
893 LLVMValueRef
*p_frac_part
= NULL
;
894 LLVMValueRef
*p_exp2
= NULL
;
896 src0
= emit_fetch( bld
, inst
, 0, CHAN_X
);
898 if (IS_DST0_CHANNEL_ENABLED( inst
, CHAN_X
))
899 p_exp2_int_part
= &tmp0
;
900 if (IS_DST0_CHANNEL_ENABLED( inst
, CHAN_Y
))
902 if (IS_DST0_CHANNEL_ENABLED( inst
, CHAN_Z
))
905 lp_build_exp2_approx(&bld
->base
, src0
, p_exp2_int_part
, p_frac_part
, p_exp2
);
907 if (IS_DST0_CHANNEL_ENABLED( inst
, CHAN_X
))
909 if (IS_DST0_CHANNEL_ENABLED( inst
, CHAN_Y
))
911 if (IS_DST0_CHANNEL_ENABLED( inst
, CHAN_Z
))
915 if (IS_DST0_CHANNEL_ENABLED( inst
, CHAN_W
)) {
916 dst0
[CHAN_W
] = bld
->base
.one
;
920 case TGSI_OPCODE_LOG
:
921 if (IS_DST0_CHANNEL_ENABLED( inst
, CHAN_X
) ||
922 IS_DST0_CHANNEL_ENABLED( inst
, CHAN_Y
) ||
923 IS_DST0_CHANNEL_ENABLED( inst
, CHAN_Z
)) {
924 LLVMValueRef
*p_floor_log2
= NULL
;
925 LLVMValueRef
*p_exp
= NULL
;
926 LLVMValueRef
*p_log2
= NULL
;
928 src0
= emit_fetch( bld
, inst
, 0, CHAN_X
);
929 src0
= lp_build_abs( &bld
->base
, src0
);
931 if (IS_DST0_CHANNEL_ENABLED( inst
, CHAN_X
))
932 p_floor_log2
= &tmp0
;
933 if (IS_DST0_CHANNEL_ENABLED( inst
, CHAN_Y
))
935 if (IS_DST0_CHANNEL_ENABLED( inst
, CHAN_Z
))
938 lp_build_log2_approx(&bld
->base
, src0
, p_exp
, p_floor_log2
, p_log2
);
940 /* dst.x = floor(lg2(abs(src.x))) */
941 if (IS_DST0_CHANNEL_ENABLED( inst
, CHAN_X
))
943 /* dst.y = abs(src)/ex2(floor(lg2(abs(src.x)))) */
944 if (IS_DST0_CHANNEL_ENABLED( inst
, CHAN_Y
)) {
945 dst0
[CHAN_Y
] = lp_build_div( &bld
->base
, src0
, tmp1
);
947 /* dst.z = lg2(abs(src.x)) */
948 if (IS_DST0_CHANNEL_ENABLED( inst
, CHAN_Z
))
952 if (IS_DST0_CHANNEL_ENABLED( inst
, CHAN_W
)) {
953 dst0
[CHAN_W
] = bld
->base
.one
;
957 case TGSI_OPCODE_MUL
:
958 FOR_EACH_DST0_ENABLED_CHANNEL( inst
, chan_index
) {
959 src0
= emit_fetch( bld
, inst
, 0, chan_index
);
960 src1
= emit_fetch( bld
, inst
, 1, chan_index
);
961 dst0
[chan_index
] = lp_build_mul(&bld
->base
, src0
, src1
);
965 case TGSI_OPCODE_ADD
:
966 FOR_EACH_DST0_ENABLED_CHANNEL( inst
, chan_index
) {
967 src0
= emit_fetch( bld
, inst
, 0, chan_index
);
968 src1
= emit_fetch( bld
, inst
, 1, chan_index
);
969 dst0
[chan_index
] = lp_build_add(&bld
->base
, src0
, src1
);
973 case TGSI_OPCODE_DP3
:
974 /* TGSI_OPCODE_DOT3 */
975 tmp0
= emit_fetch( bld
, inst
, 0, CHAN_X
);
976 tmp1
= emit_fetch( bld
, inst
, 1, CHAN_X
);
977 tmp0
= lp_build_mul( &bld
->base
, tmp0
, tmp1
);
978 tmp1
= emit_fetch( bld
, inst
, 0, CHAN_Y
);
979 tmp2
= emit_fetch( bld
, inst
, 1, CHAN_Y
);
980 tmp1
= lp_build_mul( &bld
->base
, tmp1
, tmp2
);
981 tmp0
= lp_build_add( &bld
->base
, tmp0
, tmp1
);
982 tmp1
= emit_fetch( bld
, inst
, 0, CHAN_Z
);
983 tmp2
= emit_fetch( bld
, inst
, 1, CHAN_Z
);
984 tmp1
= lp_build_mul( &bld
->base
, tmp1
, tmp2
);
985 tmp0
= lp_build_add( &bld
->base
, tmp0
, tmp1
);
986 FOR_EACH_DST0_ENABLED_CHANNEL( inst
, chan_index
) {
987 dst0
[chan_index
] = tmp0
;
991 case TGSI_OPCODE_DP4
:
992 /* TGSI_OPCODE_DOT4 */
993 tmp0
= emit_fetch( bld
, inst
, 0, CHAN_X
);
994 tmp1
= emit_fetch( bld
, inst
, 1, CHAN_X
);
995 tmp0
= lp_build_mul( &bld
->base
, tmp0
, tmp1
);
996 tmp1
= emit_fetch( bld
, inst
, 0, CHAN_Y
);
997 tmp2
= emit_fetch( bld
, inst
, 1, CHAN_Y
);
998 tmp1
= lp_build_mul( &bld
->base
, tmp1
, tmp2
);
999 tmp0
= lp_build_add( &bld
->base
, tmp0
, tmp1
);
1000 tmp1
= emit_fetch( bld
, inst
, 0, CHAN_Z
);
1001 tmp2
= emit_fetch( bld
, inst
, 1, CHAN_Z
);
1002 tmp1
= lp_build_mul( &bld
->base
, tmp1
, tmp2
);
1003 tmp0
= lp_build_add( &bld
->base
, tmp0
, tmp1
);
1004 tmp1
= emit_fetch( bld
, inst
, 0, CHAN_W
);
1005 tmp2
= emit_fetch( bld
, inst
, 1, CHAN_W
);
1006 tmp1
= lp_build_mul( &bld
->base
, tmp1
, tmp2
);
1007 tmp0
= lp_build_add( &bld
->base
, tmp0
, tmp1
);
1008 FOR_EACH_DST0_ENABLED_CHANNEL( inst
, chan_index
) {
1009 dst0
[chan_index
] = tmp0
;
1013 case TGSI_OPCODE_DST
:
1014 IF_IS_DST0_CHANNEL_ENABLED( inst
, CHAN_X
) {
1015 dst0
[CHAN_X
] = bld
->base
.one
;
1017 IF_IS_DST0_CHANNEL_ENABLED( inst
, CHAN_Y
) {
1018 tmp0
= emit_fetch( bld
, inst
, 0, CHAN_Y
);
1019 tmp1
= emit_fetch( bld
, inst
, 1, CHAN_Y
);
1020 dst0
[CHAN_Y
] = lp_build_mul( &bld
->base
, tmp0
, tmp1
);
1022 IF_IS_DST0_CHANNEL_ENABLED( inst
, CHAN_Z
) {
1023 dst0
[CHAN_Z
] = emit_fetch( bld
, inst
, 0, CHAN_Z
);
1025 IF_IS_DST0_CHANNEL_ENABLED( inst
, CHAN_W
) {
1026 dst0
[CHAN_W
] = emit_fetch( bld
, inst
, 1, CHAN_W
);
1030 case TGSI_OPCODE_MIN
:
1031 FOR_EACH_DST0_ENABLED_CHANNEL( inst
, chan_index
) {
1032 src0
= emit_fetch( bld
, inst
, 0, chan_index
);
1033 src1
= emit_fetch( bld
, inst
, 1, chan_index
);
1034 dst0
[chan_index
] = lp_build_min( &bld
->base
, src0
, src1
);
1038 case TGSI_OPCODE_MAX
:
1039 FOR_EACH_DST0_ENABLED_CHANNEL( inst
, chan_index
) {
1040 src0
= emit_fetch( bld
, inst
, 0, chan_index
);
1041 src1
= emit_fetch( bld
, inst
, 1, chan_index
);
1042 dst0
[chan_index
] = lp_build_max( &bld
->base
, src0
, src1
);
1046 case TGSI_OPCODE_SLT
:
1047 /* TGSI_OPCODE_SETLT */
1048 FOR_EACH_DST0_ENABLED_CHANNEL( inst
, chan_index
) {
1049 src0
= emit_fetch( bld
, inst
, 0, chan_index
);
1050 src1
= emit_fetch( bld
, inst
, 1, chan_index
);
1051 tmp0
= lp_build_cmp( &bld
->base
, PIPE_FUNC_LESS
, src0
, src1
);
1052 dst0
[chan_index
] = lp_build_select( &bld
->base
, tmp0
, bld
->base
.one
, bld
->base
.zero
);
1056 case TGSI_OPCODE_SGE
:
1057 /* TGSI_OPCODE_SETGE */
1058 FOR_EACH_DST0_ENABLED_CHANNEL( inst
, chan_index
) {
1059 src0
= emit_fetch( bld
, inst
, 0, chan_index
);
1060 src1
= emit_fetch( bld
, inst
, 1, chan_index
);
1061 tmp0
= lp_build_cmp( &bld
->base
, PIPE_FUNC_GEQUAL
, src0
, src1
);
1062 dst0
[chan_index
] = lp_build_select( &bld
->base
, tmp0
, bld
->base
.one
, bld
->base
.zero
);
1066 case TGSI_OPCODE_MAD
:
1067 /* TGSI_OPCODE_MADD */
1068 FOR_EACH_DST0_ENABLED_CHANNEL( inst
, chan_index
) {
1069 tmp0
= emit_fetch( bld
, inst
, 0, chan_index
);
1070 tmp1
= emit_fetch( bld
, inst
, 1, chan_index
);
1071 tmp2
= emit_fetch( bld
, inst
, 2, chan_index
);
1072 tmp0
= lp_build_mul( &bld
->base
, tmp0
, tmp1
);
1073 tmp0
= lp_build_add( &bld
->base
, tmp0
, tmp2
);
1074 dst0
[chan_index
] = tmp0
;
1078 case TGSI_OPCODE_SUB
:
1079 FOR_EACH_DST0_ENABLED_CHANNEL( inst
, chan_index
) {
1080 tmp0
= emit_fetch( bld
, inst
, 0, chan_index
);
1081 tmp1
= emit_fetch( bld
, inst
, 1, chan_index
);
1082 dst0
[chan_index
] = lp_build_sub( &bld
->base
, tmp0
, tmp1
);
1086 case TGSI_OPCODE_LRP
:
1087 FOR_EACH_DST0_ENABLED_CHANNEL( inst
, chan_index
) {
1088 src0
= emit_fetch( bld
, inst
, 0, chan_index
);
1089 src1
= emit_fetch( bld
, inst
, 1, chan_index
);
1090 src2
= emit_fetch( bld
, inst
, 2, chan_index
);
1091 tmp0
= lp_build_sub( &bld
->base
, src1
, src2
);
1092 tmp0
= lp_build_mul( &bld
->base
, src0
, tmp0
);
1093 dst0
[chan_index
] = lp_build_add( &bld
->base
, tmp0
, src2
);
1097 case TGSI_OPCODE_CND
:
1098 FOR_EACH_DST0_ENABLED_CHANNEL( inst
, chan_index
) {
1099 src0
= emit_fetch( bld
, inst
, 0, chan_index
);
1100 src1
= emit_fetch( bld
, inst
, 1, chan_index
);
1101 src2
= emit_fetch( bld
, inst
, 2, chan_index
);
1102 tmp1
= lp_build_const_vec(bld
->base
.type
, 0.5);
1103 tmp0
= lp_build_cmp( &bld
->base
, PIPE_FUNC_GREATER
, src2
, tmp1
);
1104 dst0
[chan_index
] = lp_build_select( &bld
->base
, tmp0
, src0
, src1
);
1108 case TGSI_OPCODE_DP2A
:
1109 tmp0
= emit_fetch( bld
, inst
, 0, CHAN_X
); /* xmm0 = src[0].x */
1110 tmp1
= emit_fetch( bld
, inst
, 1, CHAN_X
); /* xmm1 = src[1].x */
1111 tmp0
= lp_build_mul( &bld
->base
, tmp0
, tmp1
); /* xmm0 = xmm0 * xmm1 */
1112 tmp1
= emit_fetch( bld
, inst
, 0, CHAN_Y
); /* xmm1 = src[0].y */
1113 tmp2
= emit_fetch( bld
, inst
, 1, CHAN_Y
); /* xmm2 = src[1].y */
1114 tmp1
= lp_build_mul( &bld
->base
, tmp1
, tmp2
); /* xmm1 = xmm1 * xmm2 */
1115 tmp0
= lp_build_add( &bld
->base
, tmp0
, tmp1
); /* xmm0 = xmm0 + xmm1 */
1116 tmp1
= emit_fetch( bld
, inst
, 2, CHAN_X
); /* xmm1 = src[2].x */
1117 tmp0
= lp_build_add( &bld
->base
, tmp0
, tmp1
); /* xmm0 = xmm0 + xmm1 */
1118 FOR_EACH_DST0_ENABLED_CHANNEL( inst
, chan_index
) {
1119 dst0
[chan_index
] = tmp0
; /* dest[ch] = xmm0 */
1123 case TGSI_OPCODE_FRC
:
1124 FOR_EACH_DST0_ENABLED_CHANNEL( inst
, chan_index
) {
1125 src0
= emit_fetch( bld
, inst
, 0, chan_index
);
1126 tmp0
= lp_build_floor(&bld
->base
, src0
);
1127 tmp0
= lp_build_sub(&bld
->base
, src0
, tmp0
);
1128 dst0
[chan_index
] = tmp0
;
1132 case TGSI_OPCODE_CLAMP
:
1133 FOR_EACH_DST0_ENABLED_CHANNEL( inst
, chan_index
) {
1134 tmp0
= emit_fetch( bld
, inst
, 0, chan_index
);
1135 src1
= emit_fetch( bld
, inst
, 1, chan_index
);
1136 src2
= emit_fetch( bld
, inst
, 2, chan_index
);
1137 tmp0
= lp_build_max(&bld
->base
, tmp0
, src1
);
1138 tmp0
= lp_build_min(&bld
->base
, tmp0
, src2
);
1139 dst0
[chan_index
] = tmp0
;
1143 case TGSI_OPCODE_FLR
:
1144 FOR_EACH_DST0_ENABLED_CHANNEL( inst
, chan_index
) {
1145 tmp0
= emit_fetch( bld
, inst
, 0, chan_index
);
1146 dst0
[chan_index
] = lp_build_floor(&bld
->base
, tmp0
);
1150 case TGSI_OPCODE_ROUND
:
1151 FOR_EACH_DST0_ENABLED_CHANNEL( inst
, chan_index
) {
1152 tmp0
= emit_fetch( bld
, inst
, 0, chan_index
);
1153 dst0
[chan_index
] = lp_build_round(&bld
->base
, tmp0
);
1157 case TGSI_OPCODE_EX2
: {
1158 tmp0
= emit_fetch( bld
, inst
, 0, CHAN_X
);
1159 tmp0
= lp_build_exp2( &bld
->base
, tmp0
);
1160 FOR_EACH_DST0_ENABLED_CHANNEL( inst
, chan_index
) {
1161 dst0
[chan_index
] = tmp0
;
1166 case TGSI_OPCODE_LG2
:
1167 tmp0
= emit_fetch( bld
, inst
, 0, CHAN_X
);
1168 tmp0
= lp_build_log2( &bld
->base
, tmp0
);
1169 FOR_EACH_DST0_ENABLED_CHANNEL( inst
, chan_index
) {
1170 dst0
[chan_index
] = tmp0
;
1174 case TGSI_OPCODE_POW
:
1175 src0
= emit_fetch( bld
, inst
, 0, CHAN_X
);
1176 src1
= emit_fetch( bld
, inst
, 1, CHAN_X
);
1177 res
= lp_build_pow( &bld
->base
, src0
, src1
);
1178 FOR_EACH_DST0_ENABLED_CHANNEL( inst
, chan_index
) {
1179 dst0
[chan_index
] = res
;
1183 case TGSI_OPCODE_XPD
:
1184 if( IS_DST0_CHANNEL_ENABLED( inst
, CHAN_X
) ||
1185 IS_DST0_CHANNEL_ENABLED( inst
, CHAN_Y
) ) {
1186 tmp1
= emit_fetch( bld
, inst
, 1, CHAN_Z
);
1187 tmp3
= emit_fetch( bld
, inst
, 0, CHAN_Z
);
1189 if( IS_DST0_CHANNEL_ENABLED( inst
, CHAN_X
) ||
1190 IS_DST0_CHANNEL_ENABLED( inst
, CHAN_Z
) ) {
1191 tmp0
= emit_fetch( bld
, inst
, 0, CHAN_Y
);
1192 tmp4
= emit_fetch( bld
, inst
, 1, CHAN_Y
);
1194 IF_IS_DST0_CHANNEL_ENABLED( inst
, CHAN_X
) {
1196 tmp2
= lp_build_mul( &bld
->base
, tmp2
, tmp1
);
1198 tmp5
= lp_build_mul( &bld
->base
, tmp5
, tmp4
);
1199 tmp2
= lp_build_sub( &bld
->base
, tmp2
, tmp5
);
1200 dst0
[CHAN_X
] = tmp2
;
1202 if( IS_DST0_CHANNEL_ENABLED( inst
, CHAN_Y
) ||
1203 IS_DST0_CHANNEL_ENABLED( inst
, CHAN_Z
) ) {
1204 tmp2
= emit_fetch( bld
, inst
, 1, CHAN_X
);
1205 tmp5
= emit_fetch( bld
, inst
, 0, CHAN_X
);
1207 IF_IS_DST0_CHANNEL_ENABLED( inst
, CHAN_Y
) {
1208 tmp3
= lp_build_mul( &bld
->base
, tmp3
, tmp2
);
1209 tmp1
= lp_build_mul( &bld
->base
, tmp1
, tmp5
);
1210 tmp3
= lp_build_sub( &bld
->base
, tmp3
, tmp1
);
1211 dst0
[CHAN_Y
] = tmp3
;
1213 IF_IS_DST0_CHANNEL_ENABLED( inst
, CHAN_Z
) {
1214 tmp5
= lp_build_mul( &bld
->base
, tmp5
, tmp4
);
1215 tmp0
= lp_build_mul( &bld
->base
, tmp0
, tmp2
);
1216 tmp5
= lp_build_sub( &bld
->base
, tmp5
, tmp0
);
1217 dst0
[CHAN_Z
] = tmp5
;
1219 IF_IS_DST0_CHANNEL_ENABLED( inst
, CHAN_W
) {
1220 dst0
[CHAN_W
] = bld
->base
.one
;
1224 case TGSI_OPCODE_ABS
:
1225 FOR_EACH_DST0_ENABLED_CHANNEL( inst
, chan_index
) {
1226 tmp0
= emit_fetch( bld
, inst
, 0, chan_index
);
1227 dst0
[chan_index
] = lp_build_abs( &bld
->base
, tmp0
);
1231 case TGSI_OPCODE_RCC
:
1236 case TGSI_OPCODE_DPH
:
1237 tmp0
= emit_fetch( bld
, inst
, 0, CHAN_X
);
1238 tmp1
= emit_fetch( bld
, inst
, 1, CHAN_X
);
1239 tmp0
= lp_build_mul( &bld
->base
, tmp0
, tmp1
);
1240 tmp1
= emit_fetch( bld
, inst
, 0, CHAN_Y
);
1241 tmp2
= emit_fetch( bld
, inst
, 1, CHAN_Y
);
1242 tmp1
= lp_build_mul( &bld
->base
, tmp1
, tmp2
);
1243 tmp0
= lp_build_add( &bld
->base
, tmp0
, tmp1
);
1244 tmp1
= emit_fetch( bld
, inst
, 0, CHAN_Z
);
1245 tmp2
= emit_fetch( bld
, inst
, 1, CHAN_Z
);
1246 tmp1
= lp_build_mul( &bld
->base
, tmp1
, tmp2
);
1247 tmp0
= lp_build_add( &bld
->base
, tmp0
, tmp1
);
1248 tmp1
= emit_fetch( bld
, inst
, 1, CHAN_W
);
1249 tmp0
= lp_build_add( &bld
->base
, tmp0
, tmp1
);
1250 FOR_EACH_DST0_ENABLED_CHANNEL( inst
, chan_index
) {
1251 dst0
[chan_index
] = tmp0
;
1255 case TGSI_OPCODE_COS
:
1256 tmp0
= emit_fetch( bld
, inst
, 0, CHAN_X
);
1257 tmp0
= lp_build_cos( &bld
->base
, tmp0
);
1258 FOR_EACH_DST0_ENABLED_CHANNEL( inst
, chan_index
) {
1259 dst0
[chan_index
] = tmp0
;
1263 case TGSI_OPCODE_DDX
:
1264 FOR_EACH_DST0_ENABLED_CHANNEL( inst
, chan_index
) {
1265 emit_fetch_deriv( bld
, inst
, 0, chan_index
, NULL
, &dst0
[chan_index
], NULL
);
1269 case TGSI_OPCODE_DDY
:
1270 FOR_EACH_DST0_ENABLED_CHANNEL( inst
, chan_index
) {
1271 emit_fetch_deriv( bld
, inst
, 0, chan_index
, NULL
, NULL
, &dst0
[chan_index
]);
1275 case TGSI_OPCODE_KILP
:
1276 /* predicated kill */
1277 emit_kilp( bld
, inst
);
1280 case TGSI_OPCODE_KIL
:
1281 /* conditional kill */
1282 emit_kil( bld
, inst
);
1285 case TGSI_OPCODE_PK2H
:
1289 case TGSI_OPCODE_PK2US
:
1293 case TGSI_OPCODE_PK4B
:
1297 case TGSI_OPCODE_PK4UB
:
1301 case TGSI_OPCODE_RFL
:
1305 case TGSI_OPCODE_SEQ
:
1306 FOR_EACH_DST0_ENABLED_CHANNEL( inst
, chan_index
) {
1307 src0
= emit_fetch( bld
, inst
, 0, chan_index
);
1308 src1
= emit_fetch( bld
, inst
, 1, chan_index
);
1309 tmp0
= lp_build_cmp( &bld
->base
, PIPE_FUNC_EQUAL
, src0
, src1
);
1310 dst0
[chan_index
] = lp_build_select( &bld
->base
, tmp0
, bld
->base
.one
, bld
->base
.zero
);
1314 case TGSI_OPCODE_SFL
:
1315 FOR_EACH_DST0_ENABLED_CHANNEL( inst
, chan_index
) {
1316 dst0
[chan_index
] = bld
->base
.zero
;
1320 case TGSI_OPCODE_SGT
:
1321 FOR_EACH_DST0_ENABLED_CHANNEL( inst
, chan_index
) {
1322 src0
= emit_fetch( bld
, inst
, 0, chan_index
);
1323 src1
= emit_fetch( bld
, inst
, 1, chan_index
);
1324 tmp0
= lp_build_cmp( &bld
->base
, PIPE_FUNC_GREATER
, src0
, src1
);
1325 dst0
[chan_index
] = lp_build_select( &bld
->base
, tmp0
, bld
->base
.one
, bld
->base
.zero
);
1329 case TGSI_OPCODE_SIN
:
1330 tmp0
= emit_fetch( bld
, inst
, 0, CHAN_X
);
1331 tmp0
= lp_build_sin( &bld
->base
, tmp0
);
1332 FOR_EACH_DST0_ENABLED_CHANNEL( inst
, chan_index
) {
1333 dst0
[chan_index
] = tmp0
;
1337 case TGSI_OPCODE_SLE
:
1338 FOR_EACH_DST0_ENABLED_CHANNEL( inst
, chan_index
) {
1339 src0
= emit_fetch( bld
, inst
, 0, chan_index
);
1340 src1
= emit_fetch( bld
, inst
, 1, chan_index
);
1341 tmp0
= lp_build_cmp( &bld
->base
, PIPE_FUNC_LEQUAL
, src0
, src1
);
1342 dst0
[chan_index
] = lp_build_select( &bld
->base
, tmp0
, bld
->base
.one
, bld
->base
.zero
);
1346 case TGSI_OPCODE_SNE
:
1347 FOR_EACH_DST0_ENABLED_CHANNEL( inst
, chan_index
) {
1348 src0
= emit_fetch( bld
, inst
, 0, chan_index
);
1349 src1
= emit_fetch( bld
, inst
, 1, chan_index
);
1350 tmp0
= lp_build_cmp( &bld
->base
, PIPE_FUNC_NOTEQUAL
, src0
, src1
);
1351 dst0
[chan_index
] = lp_build_select( &bld
->base
, tmp0
, bld
->base
.one
, bld
->base
.zero
);
1355 case TGSI_OPCODE_STR
:
1356 FOR_EACH_DST0_ENABLED_CHANNEL( inst
, chan_index
) {
1357 dst0
[chan_index
] = bld
->base
.one
;
1361 case TGSI_OPCODE_TEX
:
1362 emit_tex( bld
, inst
, FALSE
, FALSE
, dst0
);
1365 case TGSI_OPCODE_TXD
:
1370 case TGSI_OPCODE_UP2H
:
1376 case TGSI_OPCODE_UP2US
:
1382 case TGSI_OPCODE_UP4B
:
1388 case TGSI_OPCODE_UP4UB
:
1394 case TGSI_OPCODE_X2D
:
1400 case TGSI_OPCODE_ARA
:
1406 case TGSI_OPCODE_ARR
:
1407 FOR_EACH_DST0_ENABLED_CHANNEL( inst
, chan_index
) {
1408 tmp0
= emit_fetch( bld
, inst
, 0, chan_index
);
1409 tmp0
= lp_build_round(&bld
->base
, tmp0
);
1410 dst0
[chan_index
] = tmp0
;
1414 case TGSI_OPCODE_BRA
:
1420 case TGSI_OPCODE_CAL
:
1425 case TGSI_OPCODE_RET
:
1430 case TGSI_OPCODE_END
:
1433 case TGSI_OPCODE_SSG
:
1434 /* TGSI_OPCODE_SGN */
1435 FOR_EACH_DST0_ENABLED_CHANNEL( inst
, chan_index
) {
1436 tmp0
= emit_fetch( bld
, inst
, 0, chan_index
);
1437 dst0
[chan_index
] = lp_build_sgn( &bld
->base
, tmp0
);
1441 case TGSI_OPCODE_CMP
:
1442 FOR_EACH_DST0_ENABLED_CHANNEL( inst
, chan_index
) {
1443 src0
= emit_fetch( bld
, inst
, 0, chan_index
);
1444 src1
= emit_fetch( bld
, inst
, 1, chan_index
);
1445 src2
= emit_fetch( bld
, inst
, 2, chan_index
);
1446 tmp0
= lp_build_cmp( &bld
->base
, PIPE_FUNC_LESS
, src0
, bld
->base
.zero
);
1447 dst0
[chan_index
] = lp_build_select( &bld
->base
, tmp0
, src1
, src2
);
1451 case TGSI_OPCODE_SCS
:
1452 IF_IS_DST0_CHANNEL_ENABLED( inst
, CHAN_X
) {
1453 tmp0
= emit_fetch( bld
, inst
, 0, CHAN_X
);
1454 dst0
[CHAN_X
] = lp_build_cos( &bld
->base
, tmp0
);
1456 IF_IS_DST0_CHANNEL_ENABLED( inst
, CHAN_Y
) {
1457 tmp0
= emit_fetch( bld
, inst
, 0, CHAN_X
);
1458 dst0
[CHAN_Y
] = lp_build_sin( &bld
->base
, tmp0
);
1460 IF_IS_DST0_CHANNEL_ENABLED( inst
, CHAN_Z
) {
1461 dst0
[CHAN_Z
] = bld
->base
.zero
;
1463 IF_IS_DST0_CHANNEL_ENABLED( inst
, CHAN_W
) {
1464 dst0
[CHAN_W
] = bld
->base
.one
;
1468 case TGSI_OPCODE_TXB
:
1469 emit_tex( bld
, inst
, TRUE
, FALSE
, dst0
);
1472 case TGSI_OPCODE_NRM
:
1474 case TGSI_OPCODE_NRM4
:
1475 /* 3 or 4-component normalization */
1477 uint dims
= (inst
->Instruction
.Opcode
== TGSI_OPCODE_NRM
) ? 3 : 4;
1479 if (IS_DST0_CHANNEL_ENABLED(inst
, CHAN_X
) ||
1480 IS_DST0_CHANNEL_ENABLED(inst
, CHAN_Y
) ||
1481 IS_DST0_CHANNEL_ENABLED(inst
, CHAN_Z
) ||
1482 (IS_DST0_CHANNEL_ENABLED(inst
, CHAN_W
) && dims
== 4)) {
1484 /* NOTE: Cannot use xmm regs 2/3 here (see emit_rsqrt() above). */
1487 /* xmm0 = src.x * src.x */
1488 tmp0
= emit_fetch(bld
, inst
, 0, CHAN_X
);
1489 if (IS_DST0_CHANNEL_ENABLED(inst
, CHAN_X
)) {
1492 tmp0
= lp_build_mul( &bld
->base
, tmp0
, tmp0
);
1495 /* xmm0 = xmm0 + src.y * src.y */
1496 tmp1
= emit_fetch(bld
, inst
, 0, CHAN_Y
);
1497 if (IS_DST0_CHANNEL_ENABLED(inst
, CHAN_Y
)) {
1500 tmp1
= lp_build_mul( &bld
->base
, tmp1
, tmp1
);
1501 tmp0
= lp_build_add( &bld
->base
, tmp0
, tmp1
);
1504 /* xmm0 = xmm0 + src.z * src.z */
1505 tmp1
= emit_fetch(bld
, inst
, 0, CHAN_Z
);
1506 if (IS_DST0_CHANNEL_ENABLED(inst
, CHAN_Z
)) {
1509 tmp1
= lp_build_mul( &bld
->base
, tmp1
, tmp1
);
1510 tmp0
= lp_build_add( &bld
->base
, tmp0
, tmp1
);
1514 /* xmm0 = xmm0 + src.w * src.w */
1515 tmp1
= emit_fetch(bld
, inst
, 0, CHAN_W
);
1516 if (IS_DST0_CHANNEL_ENABLED(inst
, CHAN_W
)) {
1519 tmp1
= lp_build_mul( &bld
->base
, tmp1
, tmp1
);
1520 tmp0
= lp_build_add( &bld
->base
, tmp0
, tmp1
);
1523 /* xmm1 = 1 / sqrt(xmm0) */
1524 tmp1
= lp_build_rsqrt( &bld
->base
, tmp0
);
1526 /* dst.x = xmm1 * src.x */
1527 if (IS_DST0_CHANNEL_ENABLED(inst
, CHAN_X
)) {
1528 dst0
[CHAN_X
] = lp_build_mul( &bld
->base
, tmp4
, tmp1
);
1531 /* dst.y = xmm1 * src.y */
1532 if (IS_DST0_CHANNEL_ENABLED(inst
, CHAN_Y
)) {
1533 dst0
[CHAN_Y
] = lp_build_mul( &bld
->base
, tmp5
, tmp1
);
1536 /* dst.z = xmm1 * src.z */
1537 if (IS_DST0_CHANNEL_ENABLED(inst
, CHAN_Z
)) {
1538 dst0
[CHAN_Z
] = lp_build_mul( &bld
->base
, tmp6
, tmp1
);
1541 /* dst.w = xmm1 * src.w */
1542 if (IS_DST0_CHANNEL_ENABLED(inst
, CHAN_X
) && dims
== 4) {
1543 dst0
[CHAN_W
] = lp_build_mul( &bld
->base
, tmp7
, tmp1
);
1548 if (IS_DST0_CHANNEL_ENABLED(inst
, CHAN_W
) && dims
== 3) {
1549 dst0
[CHAN_W
] = bld
->base
.one
;
1554 case TGSI_OPCODE_DIV
:
1560 case TGSI_OPCODE_DP2
:
1561 tmp0
= emit_fetch( bld
, inst
, 0, CHAN_X
); /* xmm0 = src[0].x */
1562 tmp1
= emit_fetch( bld
, inst
, 1, CHAN_X
); /* xmm1 = src[1].x */
1563 tmp0
= lp_build_mul( &bld
->base
, tmp0
, tmp1
); /* xmm0 = xmm0 * xmm1 */
1564 tmp1
= emit_fetch( bld
, inst
, 0, CHAN_Y
); /* xmm1 = src[0].y */
1565 tmp2
= emit_fetch( bld
, inst
, 1, CHAN_Y
); /* xmm2 = src[1].y */
1566 tmp1
= lp_build_mul( &bld
->base
, tmp1
, tmp2
); /* xmm1 = xmm1 * xmm2 */
1567 tmp0
= lp_build_add( &bld
->base
, tmp0
, tmp1
); /* xmm0 = xmm0 + xmm1 */
1568 FOR_EACH_DST0_ENABLED_CHANNEL( inst
, chan_index
) {
1569 dst0
[chan_index
] = tmp0
; /* dest[ch] = xmm0 */
1573 case TGSI_OPCODE_TXL
:
1574 emit_tex( bld
, inst
, TRUE
, FALSE
, dst0
);
1577 case TGSI_OPCODE_TXP
:
1578 emit_tex( bld
, inst
, FALSE
, TRUE
, dst0
);
1581 case TGSI_OPCODE_BRK
:
1582 lp_exec_break(&bld
->exec_mask
);
1585 case TGSI_OPCODE_IF
:
1586 tmp0
= emit_fetch(bld
, inst
, 0, CHAN_X
);
1587 tmp0
= lp_build_cmp(&bld
->base
, PIPE_FUNC_NOTEQUAL
,
1588 tmp0
, bld
->base
.zero
);
1589 lp_exec_mask_cond_push(&bld
->exec_mask
, tmp0
);
1592 case TGSI_OPCODE_BGNLOOP
:
1593 lp_exec_bgnloop(&bld
->exec_mask
);
1596 case TGSI_OPCODE_ELSE
:
1597 lp_exec_mask_cond_invert(&bld
->exec_mask
);
1600 case TGSI_OPCODE_ENDIF
:
1601 lp_exec_mask_cond_pop(&bld
->exec_mask
);
1604 case TGSI_OPCODE_ENDLOOP
:
1605 lp_exec_endloop(&bld
->exec_mask
);
1608 case TGSI_OPCODE_PUSHA
:
1614 case TGSI_OPCODE_POPA
:
1620 case TGSI_OPCODE_CEIL
:
1621 FOR_EACH_DST0_ENABLED_CHANNEL( inst
, chan_index
) {
1622 tmp0
= emit_fetch( bld
, inst
, 0, chan_index
);
1623 dst0
[chan_index
] = lp_build_ceil(&bld
->base
, tmp0
);
1627 case TGSI_OPCODE_I2F
:
1633 case TGSI_OPCODE_NOT
:
1639 case TGSI_OPCODE_TRUNC
:
1640 FOR_EACH_DST0_ENABLED_CHANNEL( inst
, chan_index
) {
1641 tmp0
= emit_fetch( bld
, inst
, 0, chan_index
);
1642 dst0
[chan_index
] = lp_build_trunc(&bld
->base
, tmp0
);
1646 case TGSI_OPCODE_SHL
:
1652 case TGSI_OPCODE_ISHR
:
1658 case TGSI_OPCODE_AND
:
1664 case TGSI_OPCODE_OR
:
1670 case TGSI_OPCODE_MOD
:
1676 case TGSI_OPCODE_XOR
:
1682 case TGSI_OPCODE_SAD
:
1688 case TGSI_OPCODE_TXF
:
1694 case TGSI_OPCODE_TXQ
:
1700 case TGSI_OPCODE_CONT
:
1701 lp_exec_continue(&bld
->exec_mask
);
1704 case TGSI_OPCODE_EMIT
:
1708 case TGSI_OPCODE_ENDPRIM
:
1712 case TGSI_OPCODE_NOP
:
1720 FOR_EACH_DST0_ENABLED_CHANNEL( inst
, chan_index
) {
1721 emit_store( bld
, inst
, 0, chan_index
, dst0
[chan_index
]);
1730 lp_build_tgsi_soa(LLVMBuilderRef builder
,
1731 const struct tgsi_token
*tokens
,
1732 struct lp_type type
,
1733 struct lp_build_mask_context
*mask
,
1734 LLVMValueRef consts_ptr
,
1735 const LLVMValueRef
*pos
,
1736 const LLVMValueRef (*inputs
)[NUM_CHANNELS
],
1737 LLVMValueRef (*outputs
)[NUM_CHANNELS
],
1738 struct lp_build_sampler_soa
*sampler
,
1739 struct tgsi_shader_info
*info
)
1741 struct lp_build_tgsi_soa_context bld
;
1742 struct tgsi_parse_context parse
;
1743 uint num_immediates
= 0;
1746 /* Setup build context */
1747 memset(&bld
, 0, sizeof bld
);
1748 lp_build_context_init(&bld
.base
, builder
, type
);
1751 bld
.inputs
= inputs
;
1752 bld
.outputs
= outputs
;
1753 bld
.consts_ptr
= consts_ptr
;
1754 bld
.sampler
= sampler
;
1755 bld
.has_indirect_addressing
= info
->opcode_count
[TGSI_OPCODE_ARR
] > 0 ||
1756 info
->opcode_count
[TGSI_OPCODE_ARL
] > 0;
1758 lp_exec_mask_init(&bld
.exec_mask
, &bld
.base
);
1760 tgsi_parse_init( &parse
, tokens
);
1762 while( !tgsi_parse_end_of_tokens( &parse
) ) {
1763 tgsi_parse_token( &parse
);
1765 switch( parse
.FullToken
.Token
.Type
) {
1766 case TGSI_TOKEN_TYPE_DECLARATION
:
1767 /* Inputs already interpolated */
1769 if (!emit_declaration( &bld
, &parse
.FullToken
.FullDeclaration
))
1770 _debug_printf("warning: failed to define LLVM variable\n");
1774 case TGSI_TOKEN_TYPE_INSTRUCTION
:
1776 unsigned opcode
= parse
.FullToken
.FullInstruction
.Instruction
.Opcode
;
1777 const struct tgsi_opcode_info
*opcode_info
= tgsi_get_opcode_info(opcode
);
1778 if (!emit_instruction( &bld
, &parse
.FullToken
.FullInstruction
, opcode_info
))
1779 _debug_printf("warning: failed to translate tgsi opcode %s to LLVM\n",
1780 opcode_info
->mnemonic
);
1785 case TGSI_TOKEN_TYPE_IMMEDIATE
:
1786 /* simply copy the immediate values into the next immediates[] slot */
1788 const uint size
= parse
.FullToken
.FullImmediate
.Immediate
.NrTokens
- 1;
1790 assert(num_immediates
< LP_MAX_IMMEDIATES
);
1791 for( i
= 0; i
< size
; ++i
)
1792 bld
.immediates
[num_immediates
][i
] =
1793 lp_build_const_vec(type
, parse
.FullToken
.FullImmediate
.u
[i
].Float
);
1794 for( i
= size
; i
< 4; ++i
)
1795 bld
.immediates
[num_immediates
][i
] = bld
.base
.undef
;
1800 case TGSI_TOKEN_TYPE_PROPERTY
:
1808 LLVMBasicBlockRef block
= LLVMGetInsertBlock(builder
);
1809 LLVMValueRef function
= LLVMGetBasicBlockParent(block
);
1810 debug_printf("11111111111111111111111111111 \n");
1811 tgsi_dump(tokens
, 0);
1812 LLVMDumpValue(function
);
1813 debug_printf("2222222222222222222222222222 \n");
1815 tgsi_parse_free( &parse
);