From 1abc00b6d18b1a81548e52783fbccd1c59ebf968 Mon Sep 17 00:00:00 2001 From: Bill Wendling Date: Thu, 28 Feb 2013 19:17:40 +0000 Subject: [PATCH] Don't add an attribute that already exists and don't remove an attribute that doesn't exist. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176289 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/IR/Attributes.cpp | 2 ++ 1 file changed, 2 insertions(+) diff --git a/lib/IR/Attributes.cpp b/lib/IR/Attributes.cpp index 6eb51f0edcb..ed2bf05e906 100644 --- a/lib/IR/Attributes.cpp +++ b/lib/IR/Attributes.cpp @@ -645,6 +645,7 @@ AttributeSet AttributeSet::get(LLVMContext &C, ArrayRef Attrs) { AttributeSet AttributeSet::addAttribute(LLVMContext &C, unsigned Idx, Attribute::AttrKind Attr) const { + if (hasAttribute(Idx, Attr)) return *this; return addAttributes(C, Idx, AttributeSet::get(C, Idx, Attr)); } @@ -699,6 +700,7 @@ AttributeSet AttributeSet::addAttributes(LLVMContext &C, unsigned Idx, AttributeSet AttributeSet::removeAttribute(LLVMContext &C, unsigned Idx, Attribute::AttrKind Attr) const { + if (!hasAttribute(Idx, Attr)) return *this; return removeAttributes(C, Idx, AttributeSet::get(C, Idx, Attr)); } -- 2.34.1