From: Chris Lattner <sabre@nondot.org>
Date: Fri, 18 Aug 2006 17:34:24 +0000 (+0000)
Subject: trivial optimization
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=703e92fa1b17b64c464abf9c63286a973a226274;p=oota-llvm.git

trivial optimization


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29770 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/AsmParser/llvmAsmParser.y b/lib/AsmParser/llvmAsmParser.y
index 6a8a0f40d88..7d6a9f7af36 100644
--- a/lib/AsmParser/llvmAsmParser.y
+++ b/lib/AsmParser/llvmAsmParser.y
@@ -714,7 +714,10 @@ static std::vector<UpRefRecord> UpRefs;
 /// thus we can complete the cycle.
 ///
 static PATypeHolder HandleUpRefs(const Type *ty) {
-  if (!ty->isAbstract()) return ty;
+  // If Ty isn't abstract, or if there are no up-references in it, then there is
+  // nothing to resolve here.
+  if (!ty->isAbstract() || UpRefs.empty()) return ty;
+  
   PATypeHolder Ty(ty);
   UR_OUT("Type '" << Ty->getDescription() <<
          "' newly formed.  Resolving upreferences.\n" <<