From 75033770f4be4695964ca7619334c747d0c96836 Mon Sep 17 00:00:00 2001
From: Nick Lewycky <nicholas@mxc.ca>
Date: Wed, 2 Feb 2011 06:43:03 +0000
Subject: [PATCH] Turn on -momit-leaf-frame-pointer by default on all
 non-Darwin platforms. Fixes PR9121!

llvm-svn: 124718
---
 clang/lib/Driver/Tools.cpp | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/clang/lib/Driver/Tools.cpp b/clang/lib/Driver/Tools.cpp
index 8f8c64d46051..a2536381c333 100644
--- a/clang/lib/Driver/Tools.cpp
+++ b/clang/lib/Driver/Tools.cpp
@@ -1089,9 +1089,10 @@ void Clang::ConstructJob(Compilation &C, const JobAction &JA,
     CmdArgs.push_back(A->getValue(Args));
   }
 
-  // -mno-omit-leaf-frame-pointer is default.
+  // -mno-omit-leaf-frame-pointer is the default on Darwin.
   if (Args.hasFlag(options::OPT_momit_leaf_frame_pointer,
-                   options::OPT_mno_omit_leaf_frame_pointer, false))
+                   options::OPT_mno_omit_leaf_frame_pointer,
+                   getToolChain().getTriple().getOS() != llvm::Triple::Darwin))
     CmdArgs.push_back("-momit-leaf-frame-pointer");
 
   // -fno-math-errno is default.