Let llc and opt override "-target-cpu" and "-target-features" via command line
options.
This commit fixes a bug in llc and opt where "-mcpu" and "-mattr" wouldn't
override function attributes "-target-cpu" and "-target-features" in the IR.
Differential Revision: http://reviews.llvm.org/D9537
llvm-svn: 236677
diff --git a/llvm/lib/IR/Function.cpp b/llvm/lib/IR/Function.cpp
index aea4bf5..d896eea 100644
--- a/llvm/lib/IR/Function.cpp
+++ b/llvm/lib/IR/Function.cpp
@@ -975,3 +975,16 @@
}
setValueSubclassData(PDData);
}
+
+void llvm::overrideFunctionAttribute(StringRef Kind, StringRef Value,
+ Function &F) {
+ auto &Ctx = F.getContext();
+ AttributeSet Attrs = F.getAttributes(), AttrsToRemove;
+
+ AttrsToRemove =
+ AttrsToRemove.addAttribute(Ctx, AttributeSet::FunctionIndex, Kind);
+ Attrs = Attrs.removeAttributes(Ctx, AttributeSet::FunctionIndex,
+ AttrsToRemove);
+ Attrs = Attrs.addAttribute(Ctx, AttributeSet::FunctionIndex, Kind, Value);
+ F.setAttributes(Attrs);
+}