diff options
| author | Dimitry Andric <dim@FreeBSD.org> | 2012-05-03 16:50:55 +0000 |
|---|---|---|
| committer | Dimitry Andric <dim@FreeBSD.org> | 2012-05-03 16:50:55 +0000 |
| commit | b61ab53cb789e568acbb2952fbead20ab853a696 (patch) | |
| tree | 8575c732129e272992ac5d7b4c2519238fff4735 /lib/Transforms/IPO | |
| parent | 63faed5b8e4f2755f127fcb8aa440480c0649327 (diff) | |
Diffstat (limited to 'lib/Transforms/IPO')
| -rw-r--r-- | lib/Transforms/IPO/Internalize.cpp | 2 | ||||
| -rw-r--r-- | lib/Transforms/IPO/PassManagerBuilder.cpp | 11 |
2 files changed, 11 insertions, 2 deletions
diff --git a/lib/Transforms/IPO/Internalize.cpp b/lib/Transforms/IPO/Internalize.cpp index cd29e7a7a7da4..fb5869ede2bbb 100644 --- a/lib/Transforms/IPO/Internalize.cpp +++ b/lib/Transforms/IPO/Internalize.cpp @@ -123,6 +123,8 @@ bool InternalizePass::runOnModule(Module &M) { bool Changed = false; // Never internalize functions which code-gen might insert. + // FIXME: We should probably add this (and the __stack_chk_guard) via some + // type of call-back in CodeGen. ExternalNames.insert("__stack_chk_fail"); // Mark all functions not in the api as internal. diff --git a/lib/Transforms/IPO/PassManagerBuilder.cpp b/lib/Transforms/IPO/PassManagerBuilder.cpp index a1b0a4580bf50..43b4ab5efa4df 100644 --- a/lib/Transforms/IPO/PassManagerBuilder.cpp +++ b/lib/Transforms/IPO/PassManagerBuilder.cpp @@ -35,6 +35,11 @@ using namespace llvm; static cl::opt<bool> RunVectorization("vectorize", cl::desc("Run vectorization passes")); +static cl::opt<bool> +UseGVNAfterVectorization("use-gvn-after-vectorization", + cl::init(false), cl::Hidden, + cl::desc("Run GVN instead of Early CSE after vectorization passes")); + PassManagerBuilder::PassManagerBuilder() { OptLevel = 2; SizeLevel = 0; @@ -182,8 +187,10 @@ void PassManagerBuilder::populateModulePassManager(PassManagerBase &MPM) { if (Vectorize) { MPM.add(createBBVectorizePass()); MPM.add(createInstructionCombiningPass()); - if (OptLevel > 1) - MPM.add(createGVNPass()); // Remove redundancies + if (OptLevel > 1 && UseGVNAfterVectorization) + MPM.add(createGVNPass()); // Remove redundancies + else + MPM.add(createEarlyCSEPass()); // Catch trivial redundancies } MPM.add(createAggressiveDCEPass()); // Delete dead instructions |