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| author | Deric C. <cheung.deric@gmail.com> | 2025-05-19 09:34:58 -0700 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2025-05-19 09:34:58 -0700 |
| commit | 12fb0d451bbdd1d1e8035197e4f5e47e8afa6141 (patch) | |
| tree | 9cc74e11ec4d4a6ed56b50148b20bafca93c6bcc /clang/lib/Serialization/ModuleCache.cpp | |
| parent | 5c3784023fcfa608d24364ca11cd688c5805a55e (diff) | |
| download | llvm-12fb0d451bbdd1d1e8035197e4f5e47e8afa6141.zip llvm-12fb0d451bbdd1d1e8035197e4f5e47e8afa6141.tar.gz llvm-12fb0d451bbdd1d1e8035197e4f5e47e8afa6141.tar.bz2 | |
[DirectX] Legalize memcpy (#139173)
Fixes #137188
This PR legalizes memcpy for DXIL in cases where:
- the src and dst arguments are from Alloca or a GlobalVariable,
- the src and dst are pointers to an ArrayType,
- the array element types of src and dst must be equivalent, and
- the len param is a ConstantInt
These assumptions simplify the legalization and, with the addition of
#138991, covers the currently-known cases of memcpy that appear when
compiling DML shaders.
This PR may be unnecessary if #138788 determines that memset and memcpy
can be eliminated entirely.
---------
Co-authored-by: Finn Plummer <canadienfinn@gmail.com>
Co-authored-by: Greg Roth <grroth@microsoft.com>
Diffstat (limited to 'clang/lib/Serialization/ModuleCache.cpp')
0 files changed, 0 insertions, 0 deletions