SPIRV-Cross/shaders-msl/comp/defer-parens.comp
Bill Hollings be4cb17a14 Enhance MSL testing and add numerous MSL test cases.
Add to suite of MSL tests and references any existing GLSL tests
that successfully convert GLSL->SPIRV->MSL and compile as MSL.
test_shaders_helper() ignores hidden files that start with '.',
to avoid accidentally finding hidden OSX files such as .DS_Store.
Use xcrun to compile MSL shaders instead of hard-coded path to Metal compiler.
Wrap calls to xcrun in exception handling to ignore if Xcode not installed.
For MSL tests, move call to validate_shader_msl() to after call to
regression_check() to allow a converted MSL shader to be saved for
manual review even if it doesn't successfully compile as MSL.
2017-01-30 22:55:21 -05:00

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#version 310 es
layout(local_size_x = 1) in;
layout(binding = 0, std430) buffer SSBO
{
vec4 data;
int index;
};
void main()
{
// Tests defer-parens behavior where a binary expression is OpCompositeExtracted chained together
// with an OpCompositeConstruct optimization.
vec4 d = data;
data = vec4(d.x, d.yz + 10.0, d.w);
// Verify binary ops.
data = d + d + d;
// Verify swizzles.
data = (d.yz + 10.0).xxyy;
// OpCompositeExtract
float t = (d.yz + 10.0).y;
data = vec4(t);
// OpVectorExtractDynamic
t = (d.zw + 10.0)[index];
data = vec4(t);
}