SPIRV-Cross/reference/shaders-no-opt/asm/frag/vector-shuffle-undef-index.asm.frag

#version 450

vec4 undef;

layout(location = 0) out vec4 FragColor;
layout(location = 0) in vec4 vFloat;

void main()
{
    FragColor = vec4(undef.x, vFloat.y, 0.0, vFloat.w) + vec4(vFloat.z, vFloat.y, 0.0, vFloat.w);
}
Support -1 index in OpVectorShuffle. -1 (0xffffffff) literal means the component should be undefined. Since we cannot express undefined directly, just use a 0 literal in the appropriate type. 2019-03-25 09:17:05 +00:00			`#version 450`

Interleave undef values with constants and types. Undef values may be of struct type and may be used in constants. Therefore, they must be interleaved with constants and types. Fixes the rest of the Vulkan CTS test `dEQP-VK.spirv_assembly.instruction.compute.opundef.undefined_spec_constant_composite`. (Please excuse the churn in the reference output; it's an inevitable result of this change.) 2022-11-09 04:04:36 +00:00			`vec4 undef;`

Support -1 index in OpVectorShuffle. -1 (0xffffffff) literal means the component should be undefined. Since we cannot express undefined directly, just use a 0 literal in the appropriate type. 2019-03-25 09:17:05 +00:00			`layout(location = 0) out vec4 FragColor;`
			`layout(location = 0) in vec4 vFloat;`

			`void main()`
			`{`
			`FragColor = vec4(undef.x, vFloat.y, 0.0, vFloat.w) + vec4(vFloat.z, vFloat.y, 0.0, vFloat.w);`
			`}`