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| author | James Molloy <james.molloy@arm.com> | 2015-04-22 09:11:38 +0000 |
|---|---|---|
| committer | James Molloy <james.molloy@arm.com> | 2015-04-22 09:11:38 +0000 |
| commit | cd2334e86e018757b5a51eb16e5a814a6d95bded (patch) | |
| tree | 961825bc1133f4578e2743b9ca7b4bad170866d7 /llvm/lib/Target/AArch64/AArch64TargetMachine.cpp | |
| parent | ea79c5b4f7e5b1eece00fadb51cac4269cd997b5 (diff) | |
| download | bcm5719-llvm-cd2334e86e018757b5a51eb16e5a814a6d95bded.tar.gz bcm5719-llvm-cd2334e86e018757b5a51eb16e5a814a6d95bded.zip | |
[AArch64] Disable complex GEP optimization by default.
Enough concerns were raised that this optimization is pessimising some code patterns.
The obvious fix, to add a Reassociate run afterwards, causes even more pessimisation in some cases due to fewer complex addressing modes being matched. As there isn't a trivial fix for this, backing this out by default until someone gets a chance to fix the addressing mode matcher.
llvm-svn: 235491
Diffstat (limited to 'llvm/lib/Target/AArch64/AArch64TargetMachine.cpp')
| -rw-r--r-- | llvm/lib/Target/AArch64/AArch64TargetMachine.cpp | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/llvm/lib/Target/AArch64/AArch64TargetMachine.cpp b/llvm/lib/Target/AArch64/AArch64TargetMachine.cpp index ab28a16515d..a9059ab37f5 100644 --- a/llvm/lib/Target/AArch64/AArch64TargetMachine.cpp +++ b/llvm/lib/Target/AArch64/AArch64TargetMachine.cpp @@ -85,7 +85,7 @@ EnableA53Fix835769("aarch64-fix-cortex-a53-835769", cl::Hidden, static cl::opt<bool> EnableGEPOpt("aarch64-gep-opt", cl::Hidden, cl::desc("Enable optimizations on complex GEPs"), - cl::init(true)); + cl::init(false)); // FIXME: Unify control over GlobalMerge. static cl::opt<cl::boolOrDefault> |
