PR4371: Reduce the inlining threshold outside of -O3. This makes
the clang inlining threshold consistent with the threshold for llvm-gcc.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@73204 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Frontend/Backend.cpp b/lib/Frontend/Backend.cpp
index 9560b61..d8f8625d 100644
--- a/lib/Frontend/Backend.cpp
+++ b/lib/Frontend/Backend.cpp
@@ -272,9 +272,13 @@
llvm::Pass *InliningPass = 0;
switch (CompileOpts.Inlining) {
case CompileOptions::NoInlining: break;
- case CompileOptions::NormalInlining:
- InliningPass = createFunctionInliningPass(); // Inline small functions
+ case CompileOptions::NormalInlining: {
+ // Inline small functions
+ unsigned Threshold = (CompileOpts.OptimizeSize ||
+ CompileOpts.OptimizationLevel < 3) ? 50 : 200;
+ InliningPass = createFunctionInliningPass(Threshold);
break;
+ }
case CompileOptions::OnlyAlwaysInlining:
InliningPass = createAlwaysInlinerPass(); // Respect always_inline
break;