Alexander Johnston 76f1949cfa [HLSL] Implement the fwidth intrinsic for DXIL and SPIR-V target (#161378) ...

Adds the fwidth intrinsic for HLSL.
The DXIL path only requires modification to the hlsl headers.
The SPIRV path implements the OpFwidth builtin in Clang and instruction
selection for the OpFwidth instruction in LLVM.
Also adds shader stage tests to the ddx_coarse and ddy_coarse
instructions used by fwidth.

Closes #99120

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Co-authored-by: Alexander Johnston <alexander.johnston@amd.com>

2025-11-20 07:38:32 -05:00

..

Builtins

[HLSL] Implement the fwidth intrinsic for DXIL and SPIR-V target (#161378)

2025-11-20 07:38:32 -05:00

spirv-intel.c

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