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Merge pull request #2028 from ShchchowAMD/constant_expressions_array_mod

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GLSL: Support constant folding for mod
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John Kessenich 2020-02-06 02:56:37 -07:00 committed by GitHub
commit 2d70e98dea
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3 changed files with 23 additions and 12 deletions
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1
Test/460.vert
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@ -7,6 +7,7 @@ float f;;;
void main()
{
bool b1;
float array[int(mod(float (7.1), float (4.0)))];
b1 = anyInvocation(b1);
b1 = allInvocations(b1);
b1 = allInvocationsEqual(b1);

24
Test/baseResults/460.vert.out
View File

@ -4,18 +4,18 @@ Shader version: 460
0:7 Function Definition: main( ( global void)
0:7 Function Parameters:
0:? Sequence
0:10 move second child to first child ( temp bool)
0:10 'b1' ( temp bool)
0:10 anyInvocation ( global bool)
0:10 'b1' ( temp bool)
0:11 move second child to first child ( temp bool)
0:11 'b1' ( temp bool)
0:11 allInvocations ( global bool)
0:11 anyInvocation ( global bool)
0:11 'b1' ( temp bool)
0:12 move second child to first child ( temp bool)
0:12 'b1' ( temp bool)
0:12 allInvocationsEqual ( global bool)
0:12 allInvocations ( global bool)
0:12 'b1' ( temp bool)
0:13 move second child to first child ( temp bool)
0:13 'b1' ( temp bool)
0:13 allInvocationsEqual ( global bool)
0:13 'b1' ( temp bool)
0:? Linker Objects
0:? 'i' ( global int)
0:? 'f' ( global float)
@ -31,18 +31,18 @@ Shader version: 460
0:7 Function Definition: main( ( global void)
0:7 Function Parameters:
0:? Sequence
0:10 move second child to first child ( temp bool)
0:10 'b1' ( temp bool)
0:10 anyInvocation ( global bool)
0:10 'b1' ( temp bool)
0:11 move second child to first child ( temp bool)
0:11 'b1' ( temp bool)
0:11 allInvocations ( global bool)
0:11 anyInvocation ( global bool)
0:11 'b1' ( temp bool)
0:12 move second child to first child ( temp bool)
0:12 'b1' ( temp bool)
0:12 allInvocationsEqual ( global bool)
0:12 allInvocations ( global bool)
0:12 'b1' ( temp bool)
0:13 move second child to first child ( temp bool)
0:13 'b1' ( temp bool)
0:13 allInvocationsEqual ( global bool)
0:13 'b1' ( temp bool)
0:? Linker Objects
0:? 'i' ( global int)
0:? 'f' ( global float)

10
glslang/MachineIndependent/Constant.cpp
View File

@ -1012,6 +1012,7 @@ TIntermTyped* TIntermediate::fold(TIntermAggregate* aggrNode)
case EOpMin:
case EOpMax:
case EOpMix:
case EOpMod:
case EOpClamp:
case EOpLessThan:
case EOpGreaterThan:
@ -1074,6 +1075,15 @@ TIntermTyped* TIntermediate::fold(TIntermAggregate* aggrNode)
case EOpPow:
newConstArray[comp].setDConst(pow(childConstUnions[0][arg0comp].getDConst(), childConstUnions[1][arg1comp].getDConst()));
break;
case EOpMod:
{
double arg0 = childConstUnions[0][arg0comp].getDConst();
double arg1 = childConstUnions[1][arg1comp].getDConst();
assert(arg1 != 0.0);
double result = arg0 - arg1 * floor(arg0 / arg1);
newConstArray[comp].setDConst(result);
break;
}
case EOpMin:
switch(children[0]->getAsTyped()->getBasicType()) {
case EbtFloat16: