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| author | Benjamin Kramer <benny.kra@googlemail.com> | 2012-02-16 17:29:50 +0000 |
|---|---|---|
| committer | Benjamin Kramer <benny.kra@googlemail.com> | 2012-02-16 17:29:50 +0000 |
| commit | 1a7ea9dd0431287a7346cd107680deb444d39f51 (patch) | |
| tree | 18ca11c286bb8be08e996af18ac74941df47afaa | |
| parent | ea79b8e03ca7c7be72832c11e9d4d78f11b728b3 (diff) | |
| download | external_llvm-1a7ea9dd0431287a7346cd107680deb444d39f51.zip external_llvm-1a7ea9dd0431287a7346cd107680deb444d39f51.tar.gz external_llvm-1a7ea9dd0431287a7346cd107680deb444d39f51.tar.bz2 | |
Disable machine copy propagation for now. It's known to be buggy (PR11940) and introduces subtle miscompiles in many places.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150703 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | lib/CodeGen/Passes.cpp | 2 | ||||
| -rw-r--r-- | test/CodeGen/X86/machine-cp.ll | 2 |
2 files changed, 2 insertions, 2 deletions
diff --git a/lib/CodeGen/Passes.cpp b/lib/CodeGen/Passes.cpp index ec1f2b4..401ca65 100644 --- a/lib/CodeGen/Passes.cpp +++ b/lib/CodeGen/Passes.cpp @@ -69,7 +69,7 @@ static cl::opt<bool> DisableLSR("disable-lsr", cl::Hidden, static cl::opt<bool> DisableCGP("disable-cgp", cl::Hidden, cl::desc("Disable Codegen Prepare")); static cl::opt<bool> DisableCopyProp("disable-copyprop", cl::Hidden, - cl::desc("Disable Copy Propagation pass")); + cl::desc("Disable Copy Propagation pass"), cl::init(true)); // PR11940 static cl::opt<bool> PrintLSR("print-lsr-output", cl::Hidden, cl::desc("Print LLVM IR produced by the loop-reduce pass")); static cl::opt<bool> PrintISelInput("print-isel-input", cl::Hidden, diff --git a/test/CodeGen/X86/machine-cp.ll b/test/CodeGen/X86/machine-cp.ll index 54fa01c..772d2d0 100644 --- a/test/CodeGen/X86/machine-cp.ll +++ b/test/CodeGen/X86/machine-cp.ll @@ -1,4 +1,4 @@ -; RUN: llc -mtriple=x86_64-apple-macosx -mcpu=nocona < %s | FileCheck %s +; RUN: llc -mtriple=x86_64-apple-macosx -mcpu=nocona < %s -disable-copyprop=false | FileCheck %s ; After tail duplication, two copies in an early exit BB can be cancelled out. ; rdar://10640363 |