From 9a5f84facbb7ecf11f37011bf0314543a126cc0d Mon Sep 17 00:00:00 2001
From: Bob Wilson <bob.wilson@apple.com>
Date: Fri, 29 Apr 2011 22:49:50 +0000
Subject: Add -Oz option and use it to set the inline threshold to 25. Radar
 9333566.  Patch by Chad Rosier!

llvm-svn: 130554
---
 clang/lib/CodeGen/BackendUtil.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'clang/lib/CodeGen/BackendUtil.cpp')

diff --git a/clang/lib/CodeGen/BackendUtil.cpp b/clang/lib/CodeGen/BackendUtil.cpp
index 9bd4bfd70c7..497ccc54eef 100644
--- a/clang/lib/CodeGen/BackendUtil.cpp
+++ b/clang/lib/CodeGen/BackendUtil.cpp
@@ -134,8 +134,10 @@ void EmitAssemblyHelper::CreatePasses() {
     //
     // FIXME: Derive these constants in a principled fashion.
     unsigned Threshold = 225;
-    if (CodeGenOpts.OptimizeSize)
+    if (CodeGenOpts.OptimizeSize == 1) //-Os
       Threshold = 75;
+    else if (CodeGenOpts.OptimizeSize == 2) //-Oz
+      Threshold = 25;
     else if (OptLevel > 2)
       Threshold = 275;
     InliningPass = createFunctionInliningPass(Threshold);
-- 
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