diff options
Diffstat (limited to 'llvm/lib/Target/PowerPC/PPCVSXFMAMutate.cpp')
| -rw-r--r-- | llvm/lib/Target/PowerPC/PPCVSXFMAMutate.cpp | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/llvm/lib/Target/PowerPC/PPCVSXFMAMutate.cpp b/llvm/lib/Target/PowerPC/PPCVSXFMAMutate.cpp index 2de8d79512b..e3580cac672 100644 --- a/llvm/lib/Target/PowerPC/PPCVSXFMAMutate.cpp +++ b/llvm/lib/Target/PowerPC/PPCVSXFMAMutate.cpp @@ -38,8 +38,14 @@ using namespace llvm; -static cl::opt<bool> DisableVSXFMAMutate("disable-ppc-vsx-fma-mutation", -cl::desc("Disable VSX FMA instruction mutation"), cl::Hidden); +// Temporarily disable FMA mutation by default, since it doesn't handle +// cross-basic-block intervals well. +// See: http://lists.llvm.org/pipermail/llvm-dev/2016-February/095669.html +// http://reviews.llvm.org/D17087 +static cl::opt<bool> DisableVSXFMAMutate( + "disable-ppc-vsx-fma-mutation", + cl::desc("Disable VSX FMA instruction mutation"), cl::init(true), + cl::Hidden); #define DEBUG_TYPE "ppc-vsx-fma-mutate" |
