Provide a way to specify inliner's attribute compatibility and merging.

This reapplies r252949. I've changed the type of FuncName to be
std::string instead of StringRef in emitFnAttrCompatCheck.

Original commit message for r252949:

Provide a way to specify inliner's attribute compatibility and merging
rules using table-gen. NFC.

This commit adds new classes CompatRule and MergeRule to Attributes.td,
which are used to generate code to check attribute compatibility and
merge attributes of the caller and callee.

rdar://problem/19836465

llvm-svn: 252990

1 files changed, 1 insertions, 10 deletions

diff --git a/llvm/lib/Analysis/InlineCost.cpp b/llvm/lib/Analysis/InlineCost.cpp
index 26f2e7ff504..b90843494b6 100644
--- a/llvm/lib/Analysis/InlineCost.cpp
+++ b/llvm/lib/Analysis/InlineCost.cpp
@@ -1349,22 +1349,13 @@ InlineCost InlineCostAnalysis::getInlineCost(CallSite CS, int Threshold) {
   return getInlineCost(CS, CS.getCalledFunction(), Threshold);
 }
 
-/// \brief Test that two functions either have or have not the given attribute
-///        at the same time.
-template<typename AttrKind>
-static bool attributeMatches(Function *F1, Function *F2, AttrKind Attr) {
-  return F1->getFnAttribute(Attr) == F2->getFnAttribute(Attr);
-}
-
 /// \brief Test that there are no attribute conflicts between Caller and Callee
 ///        that prevent inlining.
 static bool functionsHaveCompatibleAttributes(Function *Caller,
                                               Function *Callee,
                                               TargetTransformInfo &TTI) {
   return TTI.areInlineCompatible(Caller, Callee) &&
-         attributeMatches(Caller, Callee, Attribute::SanitizeAddress) &&
-         attributeMatches(Caller, Callee, Attribute::SanitizeMemory) &&
-         attributeMatches(Caller, Callee, Attribute::SanitizeThread);
+         AttributeFuncs::areInlineCompatible(*Caller, *Callee);
 }
 
 InlineCost InlineCostAnalysis::getInlineCost(CallSite CS, Function *Callee,