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

[Yaxun Liu via Phabricator via cfe-commits]

yaxunl added inline comments.


================
Comment at: clang/lib/CodeGen/CGCall.cpp:2005
+static void
+overrideFunctionFeaturesWithTargetFeatures(llvm::AttrBuilder &FuncAttr,
+                                           const llvm::Function &F,
----------------
can you add a comment about how the original target feature attributes of the function that is incompatible or missing in the target feature are handled.


================
Comment at: clang/test/CodeGen/link-builtin-bitcode.c:46
+
+// CHECK: attributes #[[ATTR_BAR]] = { noinline nounwind optnone "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="gfx90a" "target-features"="+16-bit-insts,+atomic-buffer-global-pk-add-f16-insts,+atomic-fadd-rtn-insts,+ci-insts,+dl-insts,+dot1-insts,+dot10-insts,+dot2-insts,+dot3-insts,+dot4-insts,+dot5-insts,+dot6-insts,+dot7-insts,+dpp,+gfx8-insts,+gfx9-insts,+gfx90a-insts,+mai-insts,+s-memrealtime,+s-memtime-inst,+wavefrontsize64" }
+// CHECK: attributes #[[ATTR_COMPATIBLE]] = { convergent noinline nounwind optnone "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="gfx90a" "target-features"="+16-bit-insts,+atomic-buffer-global-pk-add-f16-insts,+atomic-fadd-rtn-insts,+ci-insts,+dl-insts,+dot1-insts,+dot10-insts,+dot2-insts,+dot3-insts,+dot4-insts,+dot5-insts,+dot6-insts,+dot7-insts,+dpp,+gfx8-insts,+gfx9-insts,+gfx90a-insts,+gws,+image-insts,+mai-insts,+s-memrealtime,+s-memtime-inst,+wavefrontsize64" }
----------------
The irrelevant function attributes should not be checked


Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D159206/new/

https://reviews.llvm.org/D159206