3142e3ab15
Implements the ddx and ddy HLSL intrinsics. The DXIL intrinsics call the ddx_coarse and ddy_builtins as they lower to the coarse variants. The SPIRV intrinsics lower to their own opcodes OpDPdx and OpDPdy. Tests are added to ensure the SPIRV builtins are not available outside of shaders stage. Closes https://github.com/llvm/llvm-project/issues/99096 Closes https://github.com/llvm/llvm-project/issues/99099
13 lines
497 B
LLVM
13 lines
497 B
LLVM
; RUN: not llc -verify-machineinstrs -O0 -mtriple=spirv64-unknown-unknown %s -o /dev/null 2>&1 | FileCheck %s
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; RUN: not llc -verify-machineinstrs -O0 -mtriple=spirv32-unknown-unknown %s -o /dev/null 2>&1 | FileCheck %s
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; CHECK: LLVM ERROR: %{{.*}} = G_INTRINSIC intrinsic(@llvm.spv.ddx), %{{.*}} is only supported in shaders.
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define noundef float @ddx(float noundef %a) {
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entry:
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%spv.ddx = call float @llvm.spv.ddx.f32(float %a)
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ret float %spv.ddx
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}
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declare float @llvm.spv.ddx.f32(float)
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