diff options
Diffstat (limited to 'llvm/lib/Target/SystemZ/SystemZTargetMachine.cpp')
| -rw-r--r-- | llvm/lib/Target/SystemZ/SystemZTargetMachine.cpp | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/llvm/lib/Target/SystemZ/SystemZTargetMachine.cpp b/llvm/lib/Target/SystemZ/SystemZTargetMachine.cpp index efa3f82cec4..22beaad2ab7 100644 --- a/llvm/lib/Target/SystemZ/SystemZTargetMachine.cpp +++ b/llvm/lib/Target/SystemZ/SystemZTargetMachine.cpp @@ -130,6 +130,13 @@ void SystemZPassConfig::addPreSched2() { } void SystemZPassConfig::addPreEmitPass() { + + // Do instruction shortening before compare elimination because some + // vector instructions will be shortened into opcodes that compare + // elimination recognizes. + if (getOptLevel() != CodeGenOpt::None) + addPass(createSystemZShortenInstPass(getSystemZTargetMachine()), false); + // We eliminate comparisons here rather than earlier because some // transformations can change the set of available CC values and we // generally want those transformations to have priority. This is @@ -155,8 +162,6 @@ void SystemZPassConfig::addPreEmitPass() { // preventing that would be a win or not. if (getOptLevel() != CodeGenOpt::None) addPass(createSystemZElimComparePass(getSystemZTargetMachine()), false); - if (getOptLevel() != CodeGenOpt::None) - addPass(createSystemZShortenInstPass(getSystemZTargetMachine()), false); addPass(createSystemZLongBranchPass(getSystemZTargetMachine())); } |
