[PATCH] D159206: [Clang] Propagate target-features if compatible when using mlink-builtin-bitcode

[Juan Manuel Martinez Caamaño via Phabricator via cfe-commits]

jmmartinez created this revision.
jmmartinez added reviewers: arsenm, Pierre-vh, yaxunl, jhuber6.
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Buitlins from AMD's device-libs are compiled without specifying a
target-cpu, which results in builtins without the target-features
attribute set.

Before this patch, when linking this builtins with -mlink-builtin-bitcode
the target-features were not propagated in the incoming builtins.

With this patch, the default target features are propagated
if they are compatible with the target-features in the incoming builtin.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D159206

Files:
  clang/lib/CodeGen/CGCall.cpp
  clang/test/CodeGen/link-builtin-bitcode.c
  clang/test/CodeGenCUDA/link-builtin-bitcode-gpu-attrs-preserved.cu

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