commit 9aa3ab30a9ccd1aaf6ffb62d03785c887a6e4c81
author Rafael Espindola <rafael.espindola@gmail.com> Wed Jun 03 00:02:40 2015 +0000
committer Rafael Espindola <rafael.espindola@gmail.com> Wed Jun 03 00:02:40 2015 +0000
tree 10d2710ef470a338215361f65c457fd1bc0c18be
parent 2f41757634d9a58ef6808410ad8e685331233019

Avoid a call to getOrCreateSymbol when we already have the symbol.

llvm-svn: 238890

llvm/lib/Target/X86/X86MCInstLower.cpp

diff --git a/llvm/lib/Target/X86/X86MCInstLower.cpp b/llvm/lib/Target/X86/X86MCInstLower.cpp
index cc0e077..ff1436a 100644
--- a/llvm/lib/Target/X86/X86MCInstLower.cpp
+++ b/llvm/lib/Target/X86/X86MCInstLower.cpp
@@ -128,6 +128,7 @@
   const DataLayout *DL = TM.getDataLayout();
   assert((MO.isGlobal() || MO.isSymbol() || MO.isMBB()) && "Isn't a symbol reference");
 
+  MCSymbol *Sym = nullptr;
   SmallString<128> Name;
   StringRef Suffix;
 
@@ -160,12 +161,14 @@
     else
       getMang()->getNameWithPrefix(Name, MO.getSymbolName());
   } else if (MO.isMBB()) {
-    Name += MO.getMBB()->getSymbol()->getName();
+    assert(Suffix.empty());
+    Sym = MO.getMBB()->getSymbol();
   }
   unsigned OrigLen = Name.size() - PrefixLen;
 
   Name += Suffix;
-  MCSymbol *Sym = Ctx.getOrCreateSymbol(Name);
+  if (!Sym)
+    Sym = Ctx.getOrCreateSymbol(Name);
 
   StringRef OrigName = StringRef(Name).substr(PrefixLen, OrigLen);