Add InterpolationModifiers.test for HLSL pixel-shader interpolation modifiers#1151
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EmilioLaiso wants to merge 2 commits intollvm:mainfrom
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Add InterpolationModifiers.test for HLSL pixel-shader interpolation modifiers#1151EmilioLaiso wants to merge 2 commits intollvm:mainfrom
InterpolationModifiers.test for HLSL pixel-shader interpolation modifiers#1151EmilioLaiso wants to merge 2 commits intollvm:mainfrom
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manon-traverse
approved these changes
May 5, 2026
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Summary
Adds
test/Feature/Semantics/InterpolationModifiers.test, exercising the four HLSL pixel-shader interpolation modifiers in a single VS+PS pipeline withBufferExact-style assertions on every interpolated value:linear(default) — perspective-correct interpolation.nointerpolation— provoking-vertex passthrough (flat).noperspective— linear in screen space, no W correction.centroid— same aslinearunder 1×SAMPLE.Part of the rasterization-pipeline coverage epic (#1146).