From 43a619669f51d667fc36b52b1e7984e601307ddf Mon Sep 17 00:00:00 2001
From: Matt Pharr <matt.pharr@intel.com>
Date: Fri, 22 Jul 2011 13:15:50 +0100
Subject: [PATCH] Fix memory bug where we were accessing memory that had been
 freed.

(The string for which c_str() was called was just a temporary, so its destructor ran after funcName was initialized, leading funcName to point at freed memory.)
---
 builtins.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/builtins.cpp b/builtins.cpp
index 8dd13deb..bd6b778f 100644
--- a/builtins.cpp
+++ b/builtins.cpp
@@ -495,10 +495,10 @@ lCheckModuleIntrinsics(llvm::Module *module) {
         if (!func->isIntrinsic())
             continue;
 
-        const char *funcName = func->getName().str().c_str();
+        const std::string funcName = func->getName().str();
         // Work around http://llvm.org/bugs/show_bug.cgi?id=10438; only
         // check the llvm.x86.* intrinsics for now...
-        if (!strncmp(funcName, "llvm.x86.", 9)) {
+        if (!strncmp(funcName.c_str(), "llvm.x86.", 9)) {
             llvm::Intrinsic::ID id = (llvm::Intrinsic::ID)func->getIntrinsicID();
             assert(id != 0);
             LLVM_TYPE_CONST llvm::Type *intrinsicType =