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GLSL/Vulkan: Enforce no location aliasing in vertex inputs.

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This commit is contained in:
John Kessenich 2018-04-12 11:37:57 -06:00
parent 5d3babdbdf
commit 0f8d43e505
3 changed files with 6 additions and 3 deletions
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3
Test/baseResults/vulkan.vert.out
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@ -36,7 +36,8 @@ ERROR: 0:51: '[]' : only outermost dimension of an array of arrays can be a spec
ERROR: 0:54: '[]' : only outermost dimension of an array of arrays can be a specialization constant
ERROR: 0:54: 'location' : SPIR-V requires location for user input/output
ERROR: 0:58: 'location' : SPIR-V requires location for user input/output
ERROR: 37 compilation errors. No code generated.
ERROR: 0:65: 'location' : overlapping use of location 10
ERROR: 38 compilation errors. No code generated.
SPIR-V is not generated for failed compile or link

2
Test/vulkan.vert
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@ -61,3 +61,5 @@ out ban2 {
layout(binding = 3000) uniform sampler2D s3000;
layout(binding = 3001) uniform b3001 { int a; };
layout(location = 10) in vec4 in1;
layout(location = 10) in vec4 in2; // ERROR, no location aliasing

4
glslang/MachineIndependent/linkValidate.cpp
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@ -847,8 +847,8 @@ int TIntermediate::addUsedLocation(const TQualifier& qualifier, const TType& typ
// combine location and component ranges
TIoRange range(locationRange, componentRange, type.getBasicType(), qualifier.hasIndex() ? qualifier.layoutIndex : 0);
// check for collisions, except for vertex inputs on desktop
if (! (profile != EEsProfile && language == EShLangVertex && qualifier.isPipeInput()))
// check for collisions, except for vertex inputs on desktop targeting OpenGL
if (! (profile != EEsProfile && language == EShLangVertex && qualifier.isPipeInput()) || spvVersion.vulkan > 0)
collision = checkLocationRange(set, range, type, typeCollision);
if (collision < 0)