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| author | Akira Hatanaka <ahatanak@gmail.com> | 2011-09-27 16:58:43 +0000 |
|---|---|---|
| committer | Akira Hatanaka <ahatanak@gmail.com> | 2011-09-27 16:58:43 +0000 |
| commit | 78fec58c07837ecf935cf437ec672b8b46ff6d7b (patch) | |
| tree | 01ccefe6704df57574213bd574b8fb9bf18c78b9 | |
| parent | 00418ea91c6d9a681fe33182a3bf669e4347f7d2 (diff) | |
Do not add the pass that restores $gp if target is Mips64.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140607 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | lib/Target/Mips/MipsTargetMachine.cpp | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/lib/Target/Mips/MipsTargetMachine.cpp b/lib/Target/Mips/MipsTargetMachine.cpp index 25211d472f..a318f81352 100644 --- a/lib/Target/Mips/MipsTargetMachine.cpp +++ b/lib/Target/Mips/MipsTargetMachine.cpp @@ -96,7 +96,10 @@ addPreEmitPass(PassManagerBase &PM, CodeGenOpt::Level OptLevel) bool MipsTargetMachine:: addPreRegAlloc(PassManagerBase &PM, CodeGenOpt::Level OptLevel) { - PM.add(createMipsEmitGPRestorePass(*this)); + // Do not restore $gp if target is Mips64. + // In N32/64, $gp is a callee-saved register. + if (!Subtarget.hasMips64()) + PM.add(createMipsEmitGPRestorePass(*this)); return true; } |