[IR] Add AttributeSet to hide AttributeSetNode* again, NFC
Summary:
For now, it just wraps AttributeSetNode*. Eventually, it will hold
AvailableAttrs as an inline bitset, and adding and removing enum
attributes will be super cheap.
This sinks AttributeSetNode back down to lib/IR/AttributeImpl.h.
Reviewers: pete, chandlerc
Subscribers: llvm-commits, jfb
Differential Revision: https://reviews.llvm.org/D31940
llvm-svn: 300014
diff --git a/llvm/lib/Transforms/IPO/MergeFunctions.cpp b/llvm/lib/Transforms/IPO/MergeFunctions.cpp
index 5d41ca9..4ce4de1 100644
--- a/llvm/lib/Transforms/IPO/MergeFunctions.cpp
+++ b/llvm/lib/Transforms/IPO/MergeFunctions.cpp
@@ -439,7 +439,8 @@
Context, AttributeList::ReturnIndex, NewFuncAttrs.getRetAttributes());
for (unsigned argIdx = 0; argIdx < CS.arg_size(); argIdx++) {
- if (AttributeSetNode *Attrs = NewFuncAttrs.getParamAttributes(argIdx))
+ AttributeSet Attrs = NewFuncAttrs.getParamAttributes(argIdx);
+ if (Attrs.hasAttributes())
CallSiteAttrs = CallSiteAttrs.addAttributes(Context, argIdx, Attrs);
}