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SPV: Fix #739: OpSelect can only operate on scalars and vectors.

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This commit is contained in:
John Kessenich 2017-03-01 13:49:11 -07:00
parent 173c0c01a6
commit 0479437a5c
4 changed files with 55 additions and 17 deletions
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3
SPIRV/GlslangToSpv.cpp
View File

@ -1789,7 +1789,8 @@ bool TGlslangToSpvTraverser::visitSelection(glslang::TVisit /* visit */, glslang
// Crucially, side effects must be avoided, and there are performance trade-offs.
// Return true if good idea (and safe) for OpSelect, false otherwise.
const auto selectPolicy = [&]() -> bool {
if (node->getBasicType() == glslang::EbtVoid)
if ((!node->getType().isScalar() && !node->getType().isVector()) ||
node->getBasicType() == glslang::EbtVoid)
return false;
if (node->getTrueBlock() == nullptr ||

64
Test/baseResults/spv.Operations.frag.out
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@ -3,12 +3,12 @@ Warning, version 450 is not yet complete; most version-specific features are pre
// Module Version 10000
// Generated by (magic number): 80001
// Id's are bound by 509
// Id's are bound by 532
Capability Shader
1: ExtInstImport "GLSL.std.450"
MemoryModel Logical GLSL450
EntryPoint Fragment 4 "main" 11 22 212 288 485 503 508
EntryPoint Fragment 4 "main" 11 22 212 288 485 526 531
ExecutionMode 4 OriginUpperLeft
Source GLSL 450
Name 4 "main"
@ -24,13 +24,15 @@ Warning, version 450 is not yet complete; most version-specific features are pre
Name 305 "b"
Name 342 "ub42"
Name 485 "FragColor"
Name 503 "uiv4"
Name 505 "ub"
Name 508 "uuv4"
Name 503 "m1"
Name 510 "m2"
Name 526 "uiv4"
Name 528 "ub"
Name 531 "uuv4"
Decorate 22(ui) Flat
Decorate 288(uui) Flat
Decorate 503(uiv4) Flat
Decorate 508(uuv4) Flat
Decorate 526(uiv4) Flat
Decorate 531(uuv4) Flat
2: TypeVoid
3: TypeFunction 2
6: TypeFloat 32
@ -65,14 +67,24 @@ Warning, version 450 is not yet complete; most version-specific features are pre
472: 18(int) Constant 17
484: TypePointer Output 7(fvec4)
485(FragColor): 484(ptr) Variable Output
501: TypeVector 18(int) 4
502: TypePointer Input 501(ivec4)
503(uiv4): 502(ptr) Variable Input
504: TypePointer Private 178(bool)
505(ub): 504(ptr) Variable Private
506: TypeVector 141(int) 4
507: TypePointer Input 506(ivec4)
508(uuv4): 507(ptr) Variable Input
501: TypeMatrix 7(fvec4) 4
502: TypePointer Function 501
504: 6(float) Constant 0
505: 7(fvec4) ConstantComposite 461 504 504 504
506: 7(fvec4) ConstantComposite 504 461 504 504
507: 7(fvec4) ConstantComposite 504 504 461 504
508: 7(fvec4) ConstantComposite 504 504 504 461
509: 501 ConstantComposite 505 506 507 508
511: 7(fvec4) ConstantComposite 504 504 504 504
512: 501 ConstantComposite 511 511 511 511
524: TypeVector 18(int) 4
525: TypePointer Input 524(ivec4)
526(uiv4): 525(ptr) Variable Input
527: TypePointer Private 178(bool)
528(ub): 527(ptr) Variable Private
529: TypeVector 141(int) 4
530: TypePointer Input 529(ivec4)
531(uuv4): 530(ptr) Variable Input
4(main): 2 Function None 3
5: Label
9(v): 8(ptr) Variable Function
@ -81,6 +93,9 @@ Warning, version 450 is not yet complete; most version-specific features are pre
285(u): 284(ptr) Variable Function
305(b): 304(ptr) Variable Function
486: 8(ptr) Variable Function
503(m1): 502(ptr) Variable Function
510(m2): 502(ptr) Variable Function
513: 502(ptr) Variable Function
12: 7(fvec4) Load 11(uv4)
13: 7(fvec4) ExtInst 1(GLSL.std.450) 11(Radians) 12
Store 9(v) 13
@ -666,5 +681,24 @@ Warning, version 450 is not yet complete; most version-specific features are pre
489: Label
500: 7(fvec4) Load 486
Store 485(FragColor) 500
Store 503(m1) 509
Store 510(m2) 512
514: 178(bool) Load 305(b)
SelectionMerge 516 None
BranchConditional 514 515 518
515: Label
517: 501 Load 503(m1)
Store 513 517
Branch 516
518: Label
519: 501 Load 510(m2)
Store 513 519
Branch 516
516: Label
520: 8(ptr) AccessChain 513 405
521: 7(fvec4) Load 520
522: 7(fvec4) Load 485(FragColor)
523: 7(fvec4) FAdd 522 521
Store 485(FragColor) 523
Return
FunctionEnd

3
Test/spv.Operations.frag
View File

@ -135,4 +135,7 @@ void main()
b = !b;
FragColor = b ? vec4(i) + vec4(f) + v : v;
mat4 m1 = mat4(1.0), m2 = mat4(0.0);
FragColor += (b ? m1 : m2)[1];
}

2
glslang/Include/revision.h
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@ -2,5 +2,5 @@
// For the version, it uses the latest git tag followed by the number of commits.
// For the date, it uses the current date (when then script is run).
#define GLSLANG_REVISION "Overload400-PrecQual.1865"
#define GLSLANG_REVISION "Overload400-PrecQual.1870"
#define GLSLANG_DATE "01-Mar-2017"