3 #include "draw_context.h"
6 #include "gallivm/lp_bld_arit.h"
7 #include "gallivm/lp_bld_struct.h"
8 #include "gallivm/lp_bld_type.h"
9 #include "gallivm/lp_bld_flow.h"
10 #include "gallivm/lp_bld_debug.h"
11 #include "gallivm/lp_bld_tgsi.h"
12 #include "gallivm/lp_bld_printf.h"
14 #include "tgsi/tgsi_exec.h"
16 #include "util/u_cpu_detect.h"
17 #include "util/u_string.h"
19 #include <llvm-c/Transforms/Scalar.h>
24 /* generates the draw jit function */
26 draw_llvm_generate(struct draw_llvm
*llvm
, struct draw_llvm_variant
*var
);
29 init_globals(struct draw_llvm
*llvm
)
31 LLVMTypeRef texture_type
;
33 /* struct draw_jit_texture */
35 LLVMTypeRef elem_types
[4];
37 elem_types
[DRAW_JIT_TEXTURE_WIDTH
] = LLVMInt32Type();
38 elem_types
[DRAW_JIT_TEXTURE_HEIGHT
] = LLVMInt32Type();
39 elem_types
[DRAW_JIT_TEXTURE_STRIDE
] = LLVMInt32Type();
40 elem_types
[DRAW_JIT_TEXTURE_DATA
] = LLVMPointerType(LLVMInt8Type(), 0);
42 texture_type
= LLVMStructType(elem_types
, Elements(elem_types
), 0);
44 LP_CHECK_MEMBER_OFFSET(struct draw_jit_texture
, width
,
45 llvm
->target
, texture_type
,
46 DRAW_JIT_TEXTURE_WIDTH
);
47 LP_CHECK_MEMBER_OFFSET(struct draw_jit_texture
, height
,
48 llvm
->target
, texture_type
,
49 DRAW_JIT_TEXTURE_HEIGHT
);
50 LP_CHECK_MEMBER_OFFSET(struct draw_jit_texture
, stride
,
51 llvm
->target
, texture_type
,
52 DRAW_JIT_TEXTURE_STRIDE
);
53 LP_CHECK_MEMBER_OFFSET(struct draw_jit_texture
, data
,
54 llvm
->target
, texture_type
,
55 DRAW_JIT_TEXTURE_DATA
);
56 LP_CHECK_STRUCT_SIZE(struct draw_jit_texture
,
57 llvm
->target
, texture_type
);
59 LLVMAddTypeName(llvm
->module
, "texture", texture_type
);
63 /* struct draw_jit_context */
65 LLVMTypeRef elem_types
[3];
66 LLVMTypeRef context_type
;
68 elem_types
[0] = LLVMPointerType(LLVMFloatType(), 0); /* vs_constants */
69 elem_types
[1] = LLVMPointerType(LLVMFloatType(), 0); /* vs_constants */
70 elem_types
[2] = LLVMArrayType(texture_type
, PIPE_MAX_SAMPLERS
); /* textures */
72 context_type
= LLVMStructType(elem_types
, Elements(elem_types
), 0);
74 LP_CHECK_MEMBER_OFFSET(struct draw_jit_context
, vs_constants
,
75 llvm
->target
, context_type
, 0);
76 LP_CHECK_MEMBER_OFFSET(struct draw_jit_context
, gs_constants
,
77 llvm
->target
, context_type
, 1);
78 LP_CHECK_MEMBER_OFFSET(struct draw_jit_context
, textures
,
79 llvm
->target
, context_type
,
80 DRAW_JIT_CONTEXT_TEXTURES_INDEX
);
81 LP_CHECK_STRUCT_SIZE(struct draw_jit_context
,
82 llvm
->target
, context_type
);
84 LLVMAddTypeName(llvm
->module
, "draw_jit_context", context_type
);
86 llvm
->context_ptr_type
= LLVMPointerType(context_type
, 0);
89 LLVMTypeRef buffer_ptr
= LLVMPointerType(LLVMIntType(8), 0);
90 llvm
->buffer_ptr_type
= LLVMPointerType(buffer_ptr
, 0);
92 /* struct pipe_vertex_buffer */
94 LLVMTypeRef elem_types
[4];
97 elem_types
[0] = LLVMInt32Type();
98 elem_types
[1] = LLVMInt32Type();
99 elem_types
[2] = LLVMInt32Type();
100 elem_types
[3] = LLVMPointerType(LLVMOpaqueType(), 0); /* vs_constants */
102 vb_type
= LLVMStructType(elem_types
, Elements(elem_types
), 0);
104 LP_CHECK_MEMBER_OFFSET(struct pipe_vertex_buffer
, stride
,
105 llvm
->target
, vb_type
, 0);
106 LP_CHECK_MEMBER_OFFSET(struct pipe_vertex_buffer
, buffer_offset
,
107 llvm
->target
, vb_type
, 2);
108 LP_CHECK_STRUCT_SIZE(struct pipe_vertex_buffer
,
109 llvm
->target
, vb_type
);
111 LLVMAddTypeName(llvm
->module
, "pipe_vertex_buffer", vb_type
);
113 llvm
->vb_ptr_type
= LLVMPointerType(vb_type
, 0);
118 create_vertex_header(struct draw_llvm
*llvm
, int data_elems
)
120 /* struct vertex_header */
121 LLVMTypeRef elem_types
[3];
122 LLVMTypeRef vertex_header
;
123 char struct_name
[24];
125 util_snprintf(struct_name
, 23, "vertex_header%d", data_elems
);
127 elem_types
[0] = LLVMIntType(32);
128 elem_types
[1] = LLVMArrayType(LLVMFloatType(), 4);
129 elem_types
[2] = LLVMArrayType(elem_types
[1], data_elems
);
131 vertex_header
= LLVMStructType(elem_types
, Elements(elem_types
), 0);
133 /* these are bit-fields and we can't take address of them
134 LP_CHECK_MEMBER_OFFSET(struct vertex_header, clipmask,
135 llvm->target, vertex_header,
136 DRAW_JIT_VERTEX_CLIPMASK);
137 LP_CHECK_MEMBER_OFFSET(struct vertex_header, edgeflag,
138 llvm->target, vertex_header,
139 DRAW_JIT_VERTEX_EDGEFLAG);
140 LP_CHECK_MEMBER_OFFSET(struct vertex_header, pad,
141 llvm->target, vertex_header,
142 DRAW_JIT_VERTEX_PAD);
143 LP_CHECK_MEMBER_OFFSET(struct vertex_header, vertex_id,
144 llvm->target, vertex_header,
145 DRAW_JIT_VERTEX_VERTEX_ID);
147 LP_CHECK_MEMBER_OFFSET(struct vertex_header
, clip
,
148 llvm
->target
, vertex_header
,
149 DRAW_JIT_VERTEX_CLIP
);
150 LP_CHECK_MEMBER_OFFSET(struct vertex_header
, data
,
151 llvm
->target
, vertex_header
,
152 DRAW_JIT_VERTEX_DATA
);
154 LLVMAddTypeName(llvm
->module
, struct_name
, vertex_header
);
156 return LLVMPointerType(vertex_header
, 0);
160 draw_llvm_create(struct draw_context
*draw
)
162 struct draw_llvm
*llvm
= CALLOC_STRUCT( draw_llvm
);
167 llvm
->engine
= draw
->engine
;
169 debug_assert(llvm
->engine
);
171 llvm
->module
= LLVMModuleCreateWithName("draw_llvm");
172 llvm
->provider
= LLVMCreateModuleProviderForExistingModule(llvm
->module
);
174 LLVMAddModuleProvider(llvm
->engine
, llvm
->provider
);
176 llvm
->target
= LLVMGetExecutionEngineTargetData(llvm
->engine
);
178 llvm
->pass
= LLVMCreateFunctionPassManager(llvm
->provider
);
179 LLVMAddTargetData(llvm
->target
, llvm
->pass
);
180 /* These are the passes currently listed in llvm-c/Transforms/Scalar.h,
181 * but there are more on SVN. */
182 /* TODO: Add more passes */
183 LLVMAddConstantPropagationPass(llvm
->pass
);
184 if(util_cpu_caps
.has_sse4_1
) {
185 /* FIXME: There is a bug in this pass, whereby the combination of fptosi
186 * and sitofp (necessary for trunc/floor/ceil/round implementation)
187 * somehow becomes invalid code.
189 LLVMAddInstructionCombiningPass(llvm
->pass
);
191 LLVMAddPromoteMemoryToRegisterPass(llvm
->pass
);
192 LLVMAddGVNPass(llvm
->pass
);
193 LLVMAddCFGSimplificationPass(llvm
->pass
);
199 LLVMDumpModule(llvm
->module
);
206 draw_llvm_destroy(struct draw_llvm
*llvm
)
211 struct draw_llvm_variant
*
212 draw_llvm_prepare(struct draw_llvm
*llvm
, int num_inputs
)
214 struct draw_llvm_variant
*variant
= MALLOC(sizeof(struct draw_llvm_variant
));
216 draw_llvm_make_variant_key(llvm
, &variant
->key
);
218 llvm
->vertex_header_ptr_type
= create_vertex_header(llvm
, num_inputs
);
220 draw_llvm_generate(llvm
, variant
);
226 generate_vs(struct draw_llvm
*llvm
,
227 LLVMBuilderRef builder
,
228 LLVMValueRef (*outputs
)[NUM_CHANNELS
],
229 const LLVMValueRef (*inputs
)[NUM_CHANNELS
],
230 LLVMValueRef context_ptr
)
232 const struct tgsi_token
*tokens
= llvm
->draw
->vs
.vertex_shader
->state
.tokens
;
233 struct lp_type vs_type
;
234 LLVMValueRef consts_ptr
= draw_jit_context_vs_constants(builder
, context_ptr
);
236 memset(&vs_type
, 0, sizeof vs_type
);
237 vs_type
.floating
= TRUE
; /* floating point values */
238 vs_type
.sign
= TRUE
; /* values are signed */
239 vs_type
.norm
= FALSE
; /* values are not limited to [0,1] or [-1,1] */
240 vs_type
.width
= 32; /* 32-bit float */
241 vs_type
.length
= 4; /* 4 elements per vector */
243 num_vs
= 4; /* number of vertices per block */
246 /*tgsi_dump(tokens, 0);*/
247 lp_build_tgsi_soa(builder
,
250 NULL
/*struct lp_build_mask_context *mask*/,
256 &llvm
->draw
->vs
.vertex_shader
->info
);
260 static void print_vectorf(LLVMBuilderRef builder
,
264 val
[0] = LLVMBuildExtractElement(builder
, vec
,
265 LLVMConstInt(LLVMInt32Type(), 0, 0), "");
266 val
[1] = LLVMBuildExtractElement(builder
, vec
,
267 LLVMConstInt(LLVMInt32Type(), 1, 0), "");
268 val
[2] = LLVMBuildExtractElement(builder
, vec
,
269 LLVMConstInt(LLVMInt32Type(), 2, 0), "");
270 val
[3] = LLVMBuildExtractElement(builder
, vec
,
271 LLVMConstInt(LLVMInt32Type(), 3, 0), "");
272 lp_build_printf(builder
, "vector = [%f, %f, %f, %f]\n",
273 val
[0], val
[1], val
[2], val
[3]);
278 generate_fetch(LLVMBuilderRef builder
,
279 LLVMValueRef vbuffers_ptr
,
281 struct pipe_vertex_element
*velem
,
285 LLVMValueRef indices
= LLVMConstInt(LLVMInt64Type(), velem
->vertex_buffer_index
, 0);
286 LLVMValueRef vbuffer_ptr
= LLVMBuildGEP(builder
, vbuffers_ptr
,
288 LLVMValueRef vb_stride
= draw_jit_vbuffer_stride(builder
, vbuf
);
289 LLVMValueRef vb_buffer_offset
= draw_jit_vbuffer_offset(builder
, vbuf
);
290 LLVMValueRef stride
= LLVMBuildMul(builder
,
294 vbuffer_ptr
= LLVMBuildLoad(builder
, vbuffer_ptr
, "vbuffer");
296 stride
= LLVMBuildAdd(builder
, stride
,
299 stride
= LLVMBuildAdd(builder
, stride
,
300 LLVMConstInt(LLVMInt32Type(), velem
->src_offset
, 0),
303 /*lp_build_printf(builder, "vbuf index = %d, stride is %d\n", indices, stride);*/
304 vbuffer_ptr
= LLVMBuildGEP(builder
, vbuffer_ptr
, &stride
, 1, "");
306 *res
= draw_llvm_translate_from(builder
, vbuffer_ptr
, velem
->src_format
);
310 aos_to_soa(LLVMBuilderRef builder
,
315 LLVMValueRef channel
)
317 LLVMValueRef ex
, res
;
319 ex
= LLVMBuildExtractElement(builder
, val0
,
321 res
= LLVMBuildInsertElement(builder
,
322 LLVMConstNull(LLVMTypeOf(val0
)),
324 LLVMConstInt(LLVMInt32Type(), 0, 0),
327 ex
= LLVMBuildExtractElement(builder
, val1
,
329 res
= LLVMBuildInsertElement(builder
,
331 LLVMConstInt(LLVMInt32Type(), 1, 0),
334 ex
= LLVMBuildExtractElement(builder
, val2
,
336 res
= LLVMBuildInsertElement(builder
,
338 LLVMConstInt(LLVMInt32Type(), 2, 0),
341 ex
= LLVMBuildExtractElement(builder
, val3
,
343 res
= LLVMBuildInsertElement(builder
,
345 LLVMConstInt(LLVMInt32Type(), 3, 0),
352 soa_to_aos(LLVMBuilderRef builder
,
353 LLVMValueRef soa
[NUM_CHANNELS
],
354 LLVMValueRef aos
[NUM_CHANNELS
])
359 debug_assert(NUM_CHANNELS
== 4);
361 aos
[0] = LLVMConstNull(LLVMTypeOf(soa
[0]));
362 aos
[1] = aos
[2] = aos
[3] = aos
[0];
364 for (i
= 0; i
< NUM_CHANNELS
; ++i
) {
365 LLVMValueRef channel
= LLVMConstInt(LLVMInt32Type(), i
, 0);
367 comp
= LLVMBuildExtractElement(builder
, soa
[i
],
368 LLVMConstInt(LLVMInt32Type(), 0, 0), "");
369 aos
[0] = LLVMBuildInsertElement(builder
, aos
[0], comp
, channel
, "");
371 comp
= LLVMBuildExtractElement(builder
, soa
[i
],
372 LLVMConstInt(LLVMInt32Type(), 1, 0), "");
373 aos
[1] = LLVMBuildInsertElement(builder
, aos
[1], comp
, channel
, "");
375 comp
= LLVMBuildExtractElement(builder
, soa
[i
],
376 LLVMConstInt(LLVMInt32Type(), 2, 0), "");
377 aos
[2] = LLVMBuildInsertElement(builder
, aos
[2], comp
, channel
, "");
379 comp
= LLVMBuildExtractElement(builder
, soa
[i
],
380 LLVMConstInt(LLVMInt32Type(), 3, 0), "");
381 aos
[3] = LLVMBuildInsertElement(builder
, aos
[3], comp
, channel
, "");
387 convert_to_soa(LLVMBuilderRef builder
,
388 LLVMValueRef (*aos
)[NUM_CHANNELS
],
389 LLVMValueRef (*soa
)[NUM_CHANNELS
],
394 debug_assert(NUM_CHANNELS
== 4);
396 for (i
= 0; i
< num_attribs
; ++i
) {
397 LLVMValueRef val0
= aos
[i
][0];
398 LLVMValueRef val1
= aos
[i
][1];
399 LLVMValueRef val2
= aos
[i
][2];
400 LLVMValueRef val3
= aos
[i
][3];
402 soa
[i
][0] = aos_to_soa(builder
, val0
, val1
, val2
, val3
,
403 LLVMConstInt(LLVMInt32Type(), 0, 0));
404 soa
[i
][1] = aos_to_soa(builder
, val0
, val1
, val2
, val3
,
405 LLVMConstInt(LLVMInt32Type(), 1, 0));
406 soa
[i
][2] = aos_to_soa(builder
, val0
, val1
, val2
, val3
,
407 LLVMConstInt(LLVMInt32Type(), 2, 0));
408 soa
[i
][3] = aos_to_soa(builder
, val0
, val1
, val2
, val3
,
409 LLVMConstInt(LLVMInt32Type(), 3, 0));
414 store_aos(LLVMBuilderRef builder
,
419 LLVMValueRef id_ptr
= draw_jit_header_id(builder
, io_ptr
);
420 LLVMValueRef data_ptr
= draw_jit_header_data(builder
, io_ptr
);
421 LLVMValueRef indices
[3];
423 indices
[0] = LLVMConstInt(LLVMInt32Type(), 0, 0);
425 indices
[2] = LLVMConstInt(LLVMInt32Type(), 0, 0);
427 /* undefined vertex */
428 LLVMBuildStore(builder
, LLVMConstInt(LLVMInt32Type(),
432 lp_build_printf(builder
, " ---- %p storing attribute %d (io = %p)\n", data_ptr
, index
, io_ptr
);
435 /*lp_build_printf(builder, " ---- %p storing at %d (%p) ", io_ptr, index, data_ptr);
436 print_vectorf(builder, value);*/
437 data_ptr
= LLVMBuildBitCast(builder
, data_ptr
,
438 LLVMPointerType(LLVMArrayType(LLVMVectorType(LLVMFloatType(), 4), 0), 0),
440 data_ptr
= LLVMBuildGEP(builder
, data_ptr
, indices
, 2, "");
442 LLVMBuildStore(builder
, value
, data_ptr
);
445 LLVMValueRef x
, y
, z
, w
;
446 LLVMValueRef idx0
, idx1
, idx2
, idx3
;
447 LLVMValueRef gep0
, gep1
, gep2
, gep3
;
448 data_ptr
= LLVMBuildGEP(builder
, data_ptr
, indices
, 3, "");
450 idx0
= LLVMConstInt(LLVMInt32Type(), 0, 0);
451 idx1
= LLVMConstInt(LLVMInt32Type(), 1, 0);
452 idx2
= LLVMConstInt(LLVMInt32Type(), 2, 0);
453 idx3
= LLVMConstInt(LLVMInt32Type(), 3, 0);
455 x
= LLVMBuildExtractElement(builder
, value
,
457 y
= LLVMBuildExtractElement(builder
, value
,
459 z
= LLVMBuildExtractElement(builder
, value
,
461 w
= LLVMBuildExtractElement(builder
, value
,
464 gep0
= LLVMBuildGEP(builder
, data_ptr
, &idx0
, 1, "");
465 gep1
= LLVMBuildGEP(builder
, data_ptr
, &idx1
, 1, "");
466 gep2
= LLVMBuildGEP(builder
, data_ptr
, &idx2
, 1, "");
467 gep3
= LLVMBuildGEP(builder
, data_ptr
, &idx3
, 1, "");
469 /*lp_build_printf(builder, "##### x = %f (%p), y = %f (%p), z = %f (%p), w = %f (%p)\n",
470 x, gep0, y, gep1, z, gep2, w, gep3);*/
471 LLVMBuildStore(builder
, x
, gep0
);
472 LLVMBuildStore(builder
, y
, gep1
);
473 LLVMBuildStore(builder
, z
, gep2
);
474 LLVMBuildStore(builder
, w
, gep3
);
480 store_aos_array(LLVMBuilderRef builder
,
482 LLVMValueRef aos
[NUM_CHANNELS
],
486 LLVMValueRef attr_index
= LLVMConstInt(LLVMInt32Type(), attrib
, 0);
487 LLVMValueRef ind0
= LLVMConstInt(LLVMInt32Type(), 0, 0);
488 LLVMValueRef ind1
= LLVMConstInt(LLVMInt32Type(), 1, 0);
489 LLVMValueRef ind2
= LLVMConstInt(LLVMInt32Type(), 2, 0);
490 LLVMValueRef ind3
= LLVMConstInt(LLVMInt32Type(), 3, 0);
491 LLVMValueRef io0_ptr
, io1_ptr
, io2_ptr
, io3_ptr
;
493 debug_assert(NUM_CHANNELS
== 4);
495 io0_ptr
= LLVMBuildGEP(builder
, io_ptr
,
497 io1_ptr
= LLVMBuildGEP(builder
, io_ptr
,
499 io2_ptr
= LLVMBuildGEP(builder
, io_ptr
,
501 io3_ptr
= LLVMBuildGEP(builder
, io_ptr
,
505 lp_build_printf(builder
, " io = %p, indexes[%d, %d, %d, %d]\n",
506 io_ptr
, ind0
, ind1
, ind2
, ind3
);
509 store_aos(builder
, io0_ptr
, attr_index
, aos
[0]);
510 store_aos(builder
, io1_ptr
, attr_index
, aos
[1]);
511 store_aos(builder
, io2_ptr
, attr_index
, aos
[2]);
512 store_aos(builder
, io3_ptr
, attr_index
, aos
[3]);
516 convert_to_aos(LLVMBuilderRef builder
,
518 LLVMValueRef (*outputs
)[NUM_CHANNELS
],
522 unsigned chan
, attrib
;
525 lp_build_printf(builder
, " # storing begin\n");
527 for (attrib
= 0; attrib
< num_outputs
; ++attrib
) {
530 for(chan
= 0; chan
< NUM_CHANNELS
; ++chan
) {
531 if(outputs
[attrib
][chan
]) {
532 LLVMValueRef out
= LLVMBuildLoad(builder
, outputs
[attrib
][chan
], "");
533 lp_build_name(out
, "output%u.%c", attrib
, "xyzw"[chan
]);
534 /*lp_build_printf(builder, "output %d : %d ",
535 LLVMConstInt(LLVMInt32Type(), attrib, 0),
536 LLVMConstInt(LLVMInt32Type(), chan, 0));
537 print_vectorf(builder, out);*/
542 soa_to_aos(builder
, soa
, aos
);
543 store_aos_array(builder
,
550 lp_build_printf(builder
, " # storing end\n");
555 draw_llvm_generate(struct draw_llvm
*llvm
, struct draw_llvm_variant
*variant
)
557 LLVMTypeRef arg_types
[7];
558 LLVMTypeRef func_type
;
559 LLVMValueRef context_ptr
;
560 LLVMBasicBlockRef block
;
561 LLVMBuilderRef builder
;
562 LLVMValueRef start
, end
, count
, stride
, step
, io_itr
;
563 LLVMValueRef io_ptr
, vbuffers_ptr
, vb_ptr
;
564 struct draw_context
*draw
= llvm
->draw
;
566 struct lp_build_context bld
;
567 struct lp_build_loop_state lp_loop
;
568 struct lp_type vs_type
= lp_type_float_vec(32);
569 const int max_vertices
= 4;
570 LLVMValueRef outputs
[PIPE_MAX_SHADER_OUTPUTS
][NUM_CHANNELS
];
572 arg_types
[0] = llvm
->context_ptr_type
; /* context */
573 arg_types
[1] = llvm
->vertex_header_ptr_type
; /* vertex_header */
574 arg_types
[2] = llvm
->buffer_ptr_type
; /* vbuffers */
575 arg_types
[3] = LLVMInt32Type(); /* start */
576 arg_types
[4] = LLVMInt32Type(); /* count */
577 arg_types
[5] = LLVMInt32Type(); /* stride */
578 arg_types
[6] = llvm
->vb_ptr_type
; /* pipe_vertex_buffer's */
580 func_type
= LLVMFunctionType(LLVMVoidType(), arg_types
, Elements(arg_types
), 0);
582 variant
->function
= LLVMAddFunction(llvm
->module
, "draw_llvm_shader", func_type
);
583 LLVMSetFunctionCallConv(variant
->function
, LLVMCCallConv
);
584 for(i
= 0; i
< Elements(arg_types
); ++i
)
585 if(LLVMGetTypeKind(arg_types
[i
]) == LLVMPointerTypeKind
)
586 LLVMAddAttribute(LLVMGetParam(variant
->function
, i
), LLVMNoAliasAttribute
);
588 context_ptr
= LLVMGetParam(variant
->function
, 0);
589 io_ptr
= LLVMGetParam(variant
->function
, 1);
590 vbuffers_ptr
= LLVMGetParam(variant
->function
, 2);
591 start
= LLVMGetParam(variant
->function
, 3);
592 count
= LLVMGetParam(variant
->function
, 4);
593 stride
= LLVMGetParam(variant
->function
, 5);
594 vb_ptr
= LLVMGetParam(variant
->function
, 6);
596 lp_build_name(context_ptr
, "context");
597 lp_build_name(io_ptr
, "io");
598 lp_build_name(vbuffers_ptr
, "vbuffers");
599 lp_build_name(start
, "start");
600 lp_build_name(count
, "count");
601 lp_build_name(stride
, "stride");
602 lp_build_name(vb_ptr
, "vb");
608 block
= LLVMAppendBasicBlock(variant
->function
, "entry");
609 builder
= LLVMCreateBuilder();
610 LLVMPositionBuilderAtEnd(builder
, block
);
612 lp_build_context_init(&bld
, builder
, vs_type
);
614 end
= lp_build_add(&bld
, start
, count
);
616 step
= LLVMConstInt(LLVMInt32Type(), max_vertices
, 0);
619 lp_build_printf(builder
, "start = %d, end = %d, step = %d\n",
622 lp_build_loop_begin(builder
, start
, &lp_loop
);
624 LLVMValueRef inputs
[PIPE_MAX_SHADER_INPUTS
][NUM_CHANNELS
];
625 LLVMValueRef aos_attribs
[PIPE_MAX_SHADER_INPUTS
][NUM_CHANNELS
] = { { 0 } };
627 const LLVMValueRef (*ptr_aos
)[NUM_CHANNELS
];
629 io_itr
= LLVMBuildSub(builder
, lp_loop
.counter
, start
, "");
630 io
= LLVMBuildGEP(builder
, io_ptr
, &io_itr
, 1, "");
632 lp_build_printf(builder
, " --- io %d = %p, loop counter %d\n",
633 io_itr
, io
, lp_loop
.counter
);
635 for (i
= 0; i
< NUM_CHANNELS
; ++i
) {
636 LLVMValueRef true_index
= LLVMBuildAdd(
639 LLVMConstInt(LLVMInt32Type(), i
, 0), "");
640 for (j
= 0; j
< draw
->pt
.nr_vertex_elements
; ++j
) {
641 struct pipe_vertex_element
*velem
= &draw
->pt
.vertex_element
[j
];
642 LLVMValueRef vb_index
= LLVMConstInt(LLVMInt32Type(),
643 velem
->vertex_buffer_index
,
645 LLVMValueRef vb
= LLVMBuildGEP(builder
, vb_ptr
,
647 generate_fetch(builder
, vbuffers_ptr
,
648 &aos_attribs
[j
][i
], velem
, vb
, true_index
);
651 convert_to_soa(builder
, aos_attribs
, inputs
,
652 draw
->pt
.nr_vertex_elements
);
654 ptr_aos
= (const LLVMValueRef (*)[NUM_CHANNELS
]) inputs
;
661 convert_to_aos(builder
, io
, outputs
,
662 draw
->vs
.vertex_shader
->info
.num_outputs
,
665 lp_build_loop_end_cond(builder
, end
, step
, LLVMIntUGE
, &lp_loop
);
667 LLVMBuildRetVoid(builder
);
669 LLVMDisposeBuilder(builder
);
672 * Translate the LLVM IR into machine code.
675 if(LLVMVerifyFunction(variant
->function
, LLVMPrintMessageAction
)) {
676 LLVMDumpValue(variant
->function
);
681 LLVMRunFunctionPassManager(llvm
->pass
, variant
->function
);
684 LLVMDumpValue(variant
->function
);
687 variant
->jit_func
= (draw_jit_vert_func
)LLVMGetPointerToGlobal(llvm
->draw
->engine
, variant
->function
);
690 lp_disassemble(variant
->jit_func
);
694 draw_llvm_make_variant_key(struct draw_llvm
*llvm
,
695 struct draw_llvm_variant_key
*key
)
697 memset(key
, 0, sizeof(struct draw_llvm_variant_key
));
699 key
->nr_vertex_elements
= llvm
->draw
->pt
.nr_vertex_elements
;
701 memcpy(key
->vertex_element
,
702 llvm
->draw
->pt
.vertex_element
,
703 sizeof(struct pipe_vertex_element
) * key
->nr_vertex_elements
);
706 &llvm
->draw
->vs
.vertex_shader
->state
,
707 sizeof(struct pipe_shader_state
));