From 74733a7e46553e37295de9014c5d8a4bd59a0355 Mon Sep 17 00:00:00 2001
From: Eli Friedman <eli.friedman@gmail.com>
Date: Mon, 18 Jan 2010 22:38:31 +0000
Subject: [PATCH] Make opt -O3 act more like clang -O3 etc., by making the
 inlining thresholds match.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93798 91177308-0d34-0410-b5e6-96231b3b80d8
---
 tools/opt/opt.cpp | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/tools/opt/opt.cpp b/tools/opt/opt.cpp
index a4ad9ab571f..292a42aab41 100644
--- a/tools/opt/opt.cpp
+++ b/tools/opt/opt.cpp
@@ -288,7 +288,17 @@ void AddOptimizationPasses(PassManager &MPM, FunctionPassManager &FPM,
                            unsigned OptLevel) {
   createStandardFunctionPasses(&FPM, OptLevel);
 
-  llvm::Pass *InliningPass = OptLevel > 1 ? createFunctionInliningPass() : 0;
+  llvm::Pass *InliningPass = 0;
+  if (DisableInline) {
+    // No inlining pass
+  } else if (OptLevel) {
+    unsigned Threshold = 200;
+    if (OptLevel > 2)
+      Threshold = 250;
+    InliningPass = createFunctionInliningPass(Threshold);
+  } else {
+    InliningPass = createAlwaysInlinerPass();
+  }
   createStandardModulePasses(&MPM, OptLevel,
                              /*OptimizeSize=*/ false,
                              UnitAtATime,