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

Matt Arsenault via Phabricator via cfe-commits cfe-commits at lists.llvm.org
Wed Aug 30 07:52:12 PDT 2023


arsenm added inline comments.


================
Comment at: clang/lib/CodeGen/CGCall.cpp:2034
+  }
+
+  FuncAttr.addAttribute("target-features", llvm::join(MergedFeatures, ","));
----------------
Really it would be less bad if the incompatible functions were not imported rather than the backend pass


================
Comment at: clang/test/CodeGen/link-builtin-bitcode.c:17
+int __attribute__((target("extended-image-insts"))) attr_not_in_target(void) { return 42; }
+int __attribute__((target("no-gfx9-insts"))) attr_uncompatible(void) { return 42; }
 int x = 12;
----------------
This isn't a real target feature (do we not have a warning on this?)

s/uncompatible/incompatible


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D159206/new/

https://reviews.llvm.org/D159206



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