From fb200e30a48c3e682742174453d9550d1dc589d5 Mon Sep 17 00:00:00 2001
From: Ted Kremenek <kremenek@apple.com>
Date: Sat, 19 Mar 2011 00:59:33 +0000
Subject: [PATCH] Tweak CrashRecoveryContext::GetCurrent() to return quickly if
 'gCrsahRecoveryEnabled' is false.  This avoids us needing to go to thread
 local storage for the performance sensitive case where we are compiling code.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127928 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Support/CrashRecoveryContext.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/lib/Support/CrashRecoveryContext.cpp b/lib/Support/CrashRecoveryContext.cpp
index e190051e6db..d4e21a3a826 100644
--- a/lib/Support/CrashRecoveryContext.cpp
+++ b/lib/Support/CrashRecoveryContext.cpp
@@ -74,6 +74,9 @@ CrashRecoveryContext::~CrashRecoveryContext() {
 }
 
 CrashRecoveryContext *CrashRecoveryContext::GetCurrent() {
+  if (!gCrashRecoveryEnabled)
+    return 0;
+
   const CrashRecoveryContextImpl *CRCI = CurrentContext.get();
   if (!CRCI)
     return 0;