Add clang-cc support for -disable-llvm-optzns.
- Avoids running any LLVM optimizations, even at -O2, etc., while still keeping
any language changes these optimizations imply.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@72742 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Frontend/Backend.cpp b/lib/Frontend/Backend.cpp
index 44aa3a8..697ba94 100644
--- a/lib/Frontend/Backend.cpp
+++ b/lib/Frontend/Backend.cpp
@@ -294,10 +294,16 @@
PM->add(createPruneEHPass()); // Remove dead EH info
PM->add(createFunctionAttrsPass()); // Set readonly/readnone attrs
}
- if (CompileOpts.InlineFunctions)
+ switch (CompileOpts.Inlining) {
+ case CompileOptions::NoInlining:
+ break;
+ case CompileOptions::NormalInlining:
PM->add(createFunctionInliningPass()); // Inline small functions
- else
+ break;
+ case CompileOptions::OnlyAlwaysInlining:
PM->add(createAlwaysInlinerPass()); // Respect always_inline
+ break;
+ }
if (CompileOpts.OptimizationLevel > 2)
PM->add(createArgumentPromotionPass()); // Scalarize uninlined fn args
if (CompileOpts.SimplifyLibCalls)
@@ -341,7 +347,16 @@
if (CompileOpts.OptimizationLevel > 1 && CompileOpts.UnitAtATime)
PM->add(createConstantMergePass()); // Merge dup global constants
} else {
- PM->add(createAlwaysInlinerPass());
+ switch (CompileOpts.Inlining) {
+ case CompileOptions::NoInlining:
+ break;
+ case CompileOptions::NormalInlining:
+ PM->add(createFunctionInliningPass()); // Inline small functions
+ break;
+ case CompileOptions::OnlyAlwaysInlining:
+ PM->add(createAlwaysInlinerPass()); // Respect always_inline
+ break;
+ }
}
}