diff options
| author | JF Bastien <jfb@chromium.org> | 2013-08-08 22:33:24 -0700 |
|---|---|---|
| committer | JF Bastien <jfb@chromium.org> | 2013-08-08 22:33:24 -0700 |
| commit | 260e981f6e3d5cfad459e97da1b53b5885238f0d (patch) | |
| tree | e8ea7b707de09852c0e06534eb176c24a5a311d3 | |
| parent | 10c5d2cb2f5611441dae3114e3803526340e4b4b (diff) | |
Add simple dead code elimination at the end of post-opt.
This should slightly reduce the size of generate pexes without compromising ABI stability since the code in DCE.cpp is so simple.
BUG= https://code.google.com/p/nativeclient/issues/detail?id=3613
TEST= tryjobs
R= kschimpf@chromium.org, eliben@chromium.org
Review URL: https://codereview.chromium.org/22710004
| -rw-r--r-- | lib/Transforms/NaCl/PNaClABISimplify.cpp | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/lib/Transforms/NaCl/PNaClABISimplify.cpp b/lib/Transforms/NaCl/PNaClABISimplify.cpp index f662ada99a..7d3307e0e7 100644 --- a/lib/Transforms/NaCl/PNaClABISimplify.cpp +++ b/lib/Transforms/NaCl/PNaClABISimplify.cpp @@ -114,4 +114,9 @@ void llvm::PNaClABISimplifyAddPostOptPasses(PassManager &PM) { // ExpandVarArgs leaves around vararg intrinsics, and // ReplacePtrsWithInts leaves the lifetime.start/end intrinsics. PM.add(createStripDeadPrototypesPass()); + + // Eliminate simple dead code that the post-opt passes could have + // create. These are fairly simple passes that won't break the ABI. + PM.add(createDeadInstEliminationPass()); + PM.add(createDeadCodeEliminationPass()); } |