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SPV: Use OpLogicalEqual/OpLogicalNotEqual for boolean type comparison.

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This commit is contained in:
Rex Xu 2016-04-27 08:15:37 +08:00
parent d6abcee1fc
commit c7d3656dde
3 changed files with 8 additions and 3 deletions
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5
SPIRV/GlslangToSpv.cpp
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@ -2633,6 +2633,7 @@ spv::Id TGlslangToSpvTraverser::createBinaryOperation(glslang::TOperator op, spv
{
bool isUnsigned = typeProxy == glslang::EbtUint;
bool isFloat = typeProxy == glslang::EbtFloat || typeProxy == glslang::EbtDouble;
bool isBool = typeProxy == glslang::EbtBool;
spv::Op binOp = spv::OpNop;
bool needMatchingVectors = true; // for non-matrix ops, would a scalar need to smear to match a vector?
@ -2820,6 +2821,8 @@ spv::Id TGlslangToSpvTraverser::createBinaryOperation(glslang::TOperator op, spv
case glslang::EOpVectorEqual:
if (isFloat)
binOp = spv::OpFOrdEqual;
else if (isBool)
binOp = spv::OpLogicalEqual;
else
binOp = spv::OpIEqual;
break;
@ -2827,6 +2830,8 @@ spv::Id TGlslangToSpvTraverser::createBinaryOperation(glslang::TOperator op, spv
case glslang::EOpVectorNotEqual:
if (isFloat)
binOp = spv::OpFOrdNotEqual;
else if (isBool)
binOp = spv::OpLogicalNotEqual;
else
binOp = spv::OpINotEqual;
break;

4
Test/baseResults/spv.Operations.frag.out
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@ -470,7 +470,7 @@ Linked fragment stage:
339: Label
341: 179(bvec4) Load 181(ub41)
343: 179(bvec4) Load 342(ub42)
344: 179(bvec4) IEqual 341 343
344: 179(bvec4) LogicalEqual 341 343
345: 178(bool) Any 344
Branch 340
340: Label
@ -482,7 +482,7 @@ Linked fragment stage:
348: Label
350: 179(bvec4) Load 181(ub41)
351: 179(bvec4) Load 342(ub42)
352: 179(bvec4) INotEqual 350 351
352: 179(bvec4) LogicalNotEqual 350 351
353: 178(bool) Any 352
Branch 349
349: Label

2
Test/baseResults/spv.bool.vert.out
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@ -91,6 +91,6 @@ Linked vertex stage:
9(b): 7(ptr) FunctionParameter
11: Label
12: 6(bool) Load 9(b)
14: 6(bool) INotEqual 12 13
14: 6(bool) LogicalNotEqual 12 13
ReturnValue 14
FunctionEnd