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*/,
259 static void print_vectorf(LLVMBuilderRef builder
,
263 val
[0] = LLVMBuildExtractElement(builder
, vec
,
264 LLVMConstInt(LLVMInt32Type(), 0, 0), "");
265 val
[1] = LLVMBuildExtractElement(builder
, vec
,
266 LLVMConstInt(LLVMInt32Type(), 1, 0), "");
267 val
[2] = LLVMBuildExtractElement(builder
, vec
,
268 LLVMConstInt(LLVMInt32Type(), 2, 0), "");
269 val
[3] = LLVMBuildExtractElement(builder
, vec
,
270 LLVMConstInt(LLVMInt32Type(), 3, 0), "");
271 lp_build_printf(builder
, "vector = [%f, %f, %f, %f]\n",
272 val
[0], val
[1], val
[2], val
[3]);
277 generate_fetch(LLVMBuilderRef builder
,
278 LLVMValueRef vbuffers_ptr
,
280 struct pipe_vertex_element
*velem
,
284 LLVMValueRef indices
= LLVMConstInt(LLVMInt64Type(), velem
->vertex_buffer_index
, 0);
285 LLVMValueRef vbuffer_ptr
= LLVMBuildGEP(builder
, vbuffers_ptr
,
287 LLVMValueRef vb_stride
= draw_jit_vbuffer_stride(builder
, vbuf
);
288 LLVMValueRef vb_buffer_offset
= draw_jit_vbuffer_offset(builder
, vbuf
);
289 LLVMValueRef stride
= LLVMBuildMul(builder
,
293 vbuffer_ptr
= LLVMBuildLoad(builder
, vbuffer_ptr
, "vbuffer");
295 stride
= LLVMBuildAdd(builder
, stride
,
298 stride
= LLVMBuildAdd(builder
, stride
,
299 LLVMConstInt(LLVMInt32Type(), velem
->src_offset
, 0),
302 /*lp_build_printf(builder, "vbuf index = %d, stride is %d\n", indices, stride);*/
303 vbuffer_ptr
= LLVMBuildGEP(builder
, vbuffer_ptr
, &stride
, 1, "");
305 *res
= draw_llvm_translate_from(builder
, vbuffer_ptr
, velem
->src_format
);
309 aos_to_soa(LLVMBuilderRef builder
,
314 LLVMValueRef channel
)
316 LLVMValueRef ex
, res
;
318 ex
= LLVMBuildExtractElement(builder
, val0
,
320 res
= LLVMBuildInsertElement(builder
,
321 LLVMConstNull(LLVMTypeOf(val0
)),
323 LLVMConstInt(LLVMInt32Type(), 0, 0),
326 ex
= LLVMBuildExtractElement(builder
, val1
,
328 res
= LLVMBuildInsertElement(builder
,
330 LLVMConstInt(LLVMInt32Type(), 1, 0),
333 ex
= LLVMBuildExtractElement(builder
, val2
,
335 res
= LLVMBuildInsertElement(builder
,
337 LLVMConstInt(LLVMInt32Type(), 2, 0),
340 ex
= LLVMBuildExtractElement(builder
, val3
,
342 res
= LLVMBuildInsertElement(builder
,
344 LLVMConstInt(LLVMInt32Type(), 3, 0),
351 soa_to_aos(LLVMBuilderRef builder
,
352 LLVMValueRef soa
[NUM_CHANNELS
],
353 LLVMValueRef aos
[NUM_CHANNELS
])
358 debug_assert(NUM_CHANNELS
== 4);
360 aos
[0] = LLVMConstNull(LLVMTypeOf(soa
[0]));
361 aos
[1] = aos
[2] = aos
[3] = aos
[0];
363 for (i
= 0; i
< NUM_CHANNELS
; ++i
) {
364 LLVMValueRef channel
= LLVMConstInt(LLVMInt32Type(), i
, 0);
366 comp
= LLVMBuildExtractElement(builder
, soa
[i
],
367 LLVMConstInt(LLVMInt32Type(), 0, 0), "");
368 aos
[0] = LLVMBuildInsertElement(builder
, aos
[0], comp
, channel
, "");
370 comp
= LLVMBuildExtractElement(builder
, soa
[i
],
371 LLVMConstInt(LLVMInt32Type(), 1, 0), "");
372 aos
[1] = LLVMBuildInsertElement(builder
, aos
[1], comp
, channel
, "");
374 comp
= LLVMBuildExtractElement(builder
, soa
[i
],
375 LLVMConstInt(LLVMInt32Type(), 2, 0), "");
376 aos
[2] = LLVMBuildInsertElement(builder
, aos
[2], comp
, channel
, "");
378 comp
= LLVMBuildExtractElement(builder
, soa
[i
],
379 LLVMConstInt(LLVMInt32Type(), 3, 0), "");
380 aos
[3] = LLVMBuildInsertElement(builder
, aos
[3], comp
, channel
, "");
386 convert_to_soa(LLVMBuilderRef builder
,
387 LLVMValueRef (*aos
)[NUM_CHANNELS
],
388 LLVMValueRef (*soa
)[NUM_CHANNELS
],
393 debug_assert(NUM_CHANNELS
== 4);
395 for (i
= 0; i
< num_attribs
; ++i
) {
396 LLVMValueRef val0
= aos
[i
][0];
397 LLVMValueRef val1
= aos
[i
][1];
398 LLVMValueRef val2
= aos
[i
][2];
399 LLVMValueRef val3
= aos
[i
][3];
401 soa
[i
][0] = aos_to_soa(builder
, val0
, val1
, val2
, val3
,
402 LLVMConstInt(LLVMInt32Type(), 0, 0));
403 soa
[i
][1] = aos_to_soa(builder
, val0
, val1
, val2
, val3
,
404 LLVMConstInt(LLVMInt32Type(), 1, 0));
405 soa
[i
][2] = aos_to_soa(builder
, val0
, val1
, val2
, val3
,
406 LLVMConstInt(LLVMInt32Type(), 2, 0));
407 soa
[i
][3] = aos_to_soa(builder
, val0
, val1
, val2
, val3
,
408 LLVMConstInt(LLVMInt32Type(), 3, 0));
413 store_aos(LLVMBuilderRef builder
,
418 LLVMValueRef id_ptr
= draw_jit_header_id(builder
, io_ptr
);
419 LLVMValueRef data_ptr
= draw_jit_header_data(builder
, io_ptr
);
420 LLVMValueRef indices
[3];
422 indices
[0] = LLVMConstInt(LLVMInt32Type(), 0, 0);
424 indices
[2] = LLVMConstInt(LLVMInt32Type(), 0, 0);
426 /* undefined vertex */
427 LLVMBuildStore(builder
, LLVMConstInt(LLVMInt32Type(),
431 lp_build_printf(builder
, " ---- %p storing attribute %d (io = %p)\n", data_ptr
, index
, io_ptr
);
434 /*lp_build_printf(builder, " ---- %p storing at %d (%p) ", io_ptr, index, data_ptr);
435 print_vectorf(builder, value);*/
436 data_ptr
= LLVMBuildBitCast(builder
, data_ptr
,
437 LLVMPointerType(LLVMArrayType(LLVMVectorType(LLVMFloatType(), 4), 0), 0),
439 data_ptr
= LLVMBuildGEP(builder
, data_ptr
, indices
, 2, "");
441 LLVMBuildStore(builder
, value
, data_ptr
);
444 LLVMValueRef x
, y
, z
, w
;
445 LLVMValueRef idx0
, idx1
, idx2
, idx3
;
446 LLVMValueRef gep0
, gep1
, gep2
, gep3
;
447 data_ptr
= LLVMBuildGEP(builder
, data_ptr
, indices
, 3, "");
449 idx0
= LLVMConstInt(LLVMInt32Type(), 0, 0);
450 idx1
= LLVMConstInt(LLVMInt32Type(), 1, 0);
451 idx2
= LLVMConstInt(LLVMInt32Type(), 2, 0);
452 idx3
= LLVMConstInt(LLVMInt32Type(), 3, 0);
454 x
= LLVMBuildExtractElement(builder
, value
,
456 y
= LLVMBuildExtractElement(builder
, value
,
458 z
= LLVMBuildExtractElement(builder
, value
,
460 w
= LLVMBuildExtractElement(builder
, value
,
463 gep0
= LLVMBuildGEP(builder
, data_ptr
, &idx0
, 1, "");
464 gep1
= LLVMBuildGEP(builder
, data_ptr
, &idx1
, 1, "");
465 gep2
= LLVMBuildGEP(builder
, data_ptr
, &idx2
, 1, "");
466 gep3
= LLVMBuildGEP(builder
, data_ptr
, &idx3
, 1, "");
468 /*lp_build_printf(builder, "##### x = %f (%p), y = %f (%p), z = %f (%p), w = %f (%p)\n",
469 x, gep0, y, gep1, z, gep2, w, gep3);*/
470 LLVMBuildStore(builder
, x
, gep0
);
471 LLVMBuildStore(builder
, y
, gep1
);
472 LLVMBuildStore(builder
, z
, gep2
);
473 LLVMBuildStore(builder
, w
, gep3
);
479 store_aos_array(LLVMBuilderRef builder
,
481 LLVMValueRef aos
[NUM_CHANNELS
],
485 LLVMValueRef attr_index
= LLVMConstInt(LLVMInt32Type(), attrib
, 0);
486 LLVMValueRef ind0
= LLVMConstInt(LLVMInt32Type(), 0, 0);
487 LLVMValueRef ind1
= LLVMConstInt(LLVMInt32Type(), 1, 0);
488 LLVMValueRef ind2
= LLVMConstInt(LLVMInt32Type(), 2, 0);
489 LLVMValueRef ind3
= LLVMConstInt(LLVMInt32Type(), 3, 0);
490 LLVMValueRef io0_ptr
, io1_ptr
, io2_ptr
, io3_ptr
;
492 debug_assert(NUM_CHANNELS
== 4);
494 io0_ptr
= LLVMBuildGEP(builder
, io_ptr
,
496 io1_ptr
= LLVMBuildGEP(builder
, io_ptr
,
498 io2_ptr
= LLVMBuildGEP(builder
, io_ptr
,
500 io3_ptr
= LLVMBuildGEP(builder
, io_ptr
,
504 lp_build_printf(builder
, " io = %p, indexes[%d, %d, %d, %d]\n",
505 io_ptr
, ind0
, ind1
, ind2
, ind3
);
508 store_aos(builder
, io0_ptr
, attr_index
, aos
[0]);
509 store_aos(builder
, io1_ptr
, attr_index
, aos
[1]);
510 store_aos(builder
, io2_ptr
, attr_index
, aos
[2]);
511 store_aos(builder
, io3_ptr
, attr_index
, aos
[3]);
515 convert_to_aos(LLVMBuilderRef builder
,
517 LLVMValueRef (*outputs
)[NUM_CHANNELS
],
521 unsigned chan
, attrib
;
524 lp_build_printf(builder
, " # storing begin\n");
526 for (attrib
= 0; attrib
< num_outputs
; ++attrib
) {
529 for(chan
= 0; chan
< NUM_CHANNELS
; ++chan
) {
530 if(outputs
[attrib
][chan
]) {
531 LLVMValueRef out
= LLVMBuildLoad(builder
, outputs
[attrib
][chan
], "");
532 lp_build_name(out
, "output%u.%c", attrib
, "xyzw"[chan
]);
533 /*lp_build_printf(builder, "output %d : %d ",
534 LLVMConstInt(LLVMInt32Type(), attrib, 0),
535 LLVMConstInt(LLVMInt32Type(), chan, 0));
536 print_vectorf(builder, out);*/
541 soa_to_aos(builder
, soa
, aos
);
542 store_aos_array(builder
,
549 lp_build_printf(builder
, " # storing end\n");
554 draw_llvm_generate(struct draw_llvm
*llvm
, struct draw_llvm_variant
*variant
)
556 LLVMTypeRef arg_types
[7];
557 LLVMTypeRef func_type
;
558 LLVMValueRef context_ptr
;
559 LLVMBasicBlockRef block
;
560 LLVMBuilderRef builder
;
561 LLVMValueRef start
, end
, count
, stride
, step
, io_itr
;
562 LLVMValueRef io_ptr
, vbuffers_ptr
, vb_ptr
;
563 struct draw_context
*draw
= llvm
->draw
;
565 struct lp_build_context bld
;
566 struct lp_build_loop_state lp_loop
;
567 struct lp_type vs_type
= lp_type_float_vec(32);
568 const int max_vertices
= 4;
569 LLVMValueRef outputs
[PIPE_MAX_SHADER_OUTPUTS
][NUM_CHANNELS
];
571 arg_types
[0] = llvm
->context_ptr_type
; /* context */
572 arg_types
[1] = llvm
->vertex_header_ptr_type
; /* vertex_header */
573 arg_types
[2] = llvm
->buffer_ptr_type
; /* vbuffers */
574 arg_types
[3] = LLVMInt32Type(); /* start */
575 arg_types
[4] = LLVMInt32Type(); /* count */
576 arg_types
[5] = LLVMInt32Type(); /* stride */
577 arg_types
[6] = llvm
->vb_ptr_type
; /* pipe_vertex_buffer's */
579 func_type
= LLVMFunctionType(LLVMVoidType(), arg_types
, Elements(arg_types
), 0);
581 variant
->function
= LLVMAddFunction(llvm
->module
, "draw_llvm_shader", func_type
);
582 LLVMSetFunctionCallConv(variant
->function
, LLVMCCallConv
);
583 for(i
= 0; i
< Elements(arg_types
); ++i
)
584 if(LLVMGetTypeKind(arg_types
[i
]) == LLVMPointerTypeKind
)
585 LLVMAddAttribute(LLVMGetParam(variant
->function
, i
), LLVMNoAliasAttribute
);
587 context_ptr
= LLVMGetParam(variant
->function
, 0);
588 io_ptr
= LLVMGetParam(variant
->function
, 1);
589 vbuffers_ptr
= LLVMGetParam(variant
->function
, 2);
590 start
= LLVMGetParam(variant
->function
, 3);
591 count
= LLVMGetParam(variant
->function
, 4);
592 stride
= LLVMGetParam(variant
->function
, 5);
593 vb_ptr
= LLVMGetParam(variant
->function
, 6);
595 lp_build_name(context_ptr
, "context");
596 lp_build_name(io_ptr
, "io");
597 lp_build_name(vbuffers_ptr
, "vbuffers");
598 lp_build_name(start
, "start");
599 lp_build_name(count
, "count");
600 lp_build_name(stride
, "stride");
601 lp_build_name(vb_ptr
, "vb");
607 block
= LLVMAppendBasicBlock(variant
->function
, "entry");
608 builder
= LLVMCreateBuilder();
609 LLVMPositionBuilderAtEnd(builder
, block
);
611 lp_build_context_init(&bld
, builder
, vs_type
);
613 end
= lp_build_add(&bld
, start
, count
);
615 step
= LLVMConstInt(LLVMInt32Type(), max_vertices
, 0);
618 lp_build_printf(builder
, "start = %d, end = %d, step = %d\n",
621 lp_build_loop_begin(builder
, start
, &lp_loop
);
623 LLVMValueRef inputs
[PIPE_MAX_SHADER_INPUTS
][NUM_CHANNELS
];
624 LLVMValueRef aos_attribs
[PIPE_MAX_SHADER_INPUTS
][NUM_CHANNELS
] = { { 0 } };
626 const LLVMValueRef (*ptr_aos
)[NUM_CHANNELS
];
628 io_itr
= LLVMBuildSub(builder
, lp_loop
.counter
, start
, "");
629 io
= LLVMBuildGEP(builder
, io_ptr
, &io_itr
, 1, "");
631 lp_build_printf(builder
, " --- io %d = %p, loop counter %d\n",
632 io_itr
, io
, lp_loop
.counter
);
634 for (i
= 0; i
< NUM_CHANNELS
; ++i
) {
635 LLVMValueRef true_index
= LLVMBuildAdd(
638 LLVMConstInt(LLVMInt32Type(), i
, 0), "");
639 for (j
= 0; j
< draw
->pt
.nr_vertex_elements
; ++j
) {
640 struct pipe_vertex_element
*velem
= &draw
->pt
.vertex_element
[j
];
641 LLVMValueRef vb_index
= LLVMConstInt(LLVMInt32Type(),
642 velem
->vertex_buffer_index
,
644 LLVMValueRef vb
= LLVMBuildGEP(builder
, vb_ptr
,
646 generate_fetch(builder
, vbuffers_ptr
,
647 &aos_attribs
[j
][i
], velem
, vb
, true_index
);
650 convert_to_soa(builder
, aos_attribs
, inputs
,
651 draw
->pt
.nr_vertex_elements
);
653 ptr_aos
= (const LLVMValueRef (*)[NUM_CHANNELS
]) inputs
;
660 convert_to_aos(builder
, io
, outputs
,
661 draw
->vs
.vertex_shader
->info
.num_outputs
,
664 lp_build_loop_end_cond(builder
, end
, step
, LLVMIntUGE
, &lp_loop
);
666 LLVMBuildRetVoid(builder
);
668 LLVMDisposeBuilder(builder
);
671 * Translate the LLVM IR into machine code.
674 if(LLVMVerifyFunction(variant
->function
, LLVMPrintMessageAction
)) {
675 LLVMDumpValue(variant
->function
);
680 LLVMRunFunctionPassManager(llvm
->pass
, variant
->function
);
683 LLVMDumpValue(variant
->function
);
686 variant
->jit_func
= (draw_jit_vert_func
)LLVMGetPointerToGlobal(llvm
->draw
->engine
, variant
->function
);
689 lp_disassemble(variant
->jit_func
);
693 draw_llvm_make_variant_key(struct draw_llvm
*llvm
,
694 struct draw_llvm_variant_key
*key
)
696 memset(key
, 0, sizeof(struct draw_llvm_variant_key
));
698 key
->nr_vertex_elements
= llvm
->draw
->pt
.nr_vertex_elements
;
700 memcpy(key
->vertex_element
,
701 llvm
->draw
->pt
.vertex_element
,
702 sizeof(struct pipe_vertex_element
) * key
->nr_vertex_elements
);
705 &llvm
->draw
->vs
.vertex_shader
->state
,
706 sizeof(struct pipe_shader_state
));