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SPV: Use OpBitcast to implement 4 pack/unpack built-in functions.

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This commit is contained in:
Rex Xu 2016-09-09 17:50:07 +08:00
parent cfd7ce87cd
commit c9f349234f
2 changed files with 5 additions and 7 deletions
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3
SPIRV/GlslangToSpv.cpp
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@ -3504,8 +3504,7 @@ spv::Id TGlslangToSpvTraverser::createUnaryOperation(glslang::TOperator op, spv:
case glslang::EOpUnpackInt2x32:
case glslang::EOpPackUint2x32:
case glslang::EOpUnpackUint2x32:
logger->missingFunctionality("shader int64");
libCall = spv::GLSLstd450Bad; // TODO: This is a placeholder.
unaryOp = spv::OpBitcast;
break;
case glslang::EOpDPdx:

9
Test/baseResults/spv.int64.frag.out
View File

@ -5,7 +5,6 @@ Warning, version 450 is not yet complete; most version-specific features are pre
Linked fragment stage:
Missing functionality: shader int64
// Module Version 10000
// Generated by (magic number): 80001
// Id's are bound by 478
@ -568,15 +567,15 @@ Missing functionality: shader int64
376: 130(ivec3) Load 289(u64v)
377: 361(fvec3) Bitcast 376
Store 363(dv) 377
381: 14(int) ExtInst 1(GLSL.std.450) 0(Unknown) 380
381: 14(int) Bitcast 380
Store 279(i64) 381
383: 14(int) Load 279(i64)
384: 72(ivec2) ExtInst 1(GLSL.std.450) 0(Unknown) 383
384: 72(ivec2) Bitcast 383
Store 382(iv) 384
386: 36(int) ExtInst 1(GLSL.std.450) 0(Unknown) 385
386: 36(int) Bitcast 385
Store 291(u64) 386
388: 36(int) Load 291(u64)
389: 79(ivec2) ExtInst 1(GLSL.std.450) 0(Unknown) 388
389: 79(ivec2) Bitcast 388
Store 387(uv) 389
392: 130(ivec3) Load 289(u64v)
393: 36(int) Load 291(u64)