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author | Andrew Trick <atrick@apple.com> | 2012-01-31 18:54:19 +0000 |
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committer | Andrew Trick <atrick@apple.com> | 2012-01-31 18:54:19 +0000 |
commit | ab78e20ce085763b4fc9948eaa715fb7e49341c8 (patch) | |
tree | 69cda252adbbaad1f2e57a21dca6b448ba400d15 /lib/CodeGen | |
parent | 0db58bfecea020ffcdfa1fc6458995371e1c3c50 (diff) | |
download | external_llvm-ab78e20ce085763b4fc9948eaa715fb7e49341c8.zip external_llvm-ab78e20ce085763b4fc9948eaa715fb7e49341c8.tar.gz external_llvm-ab78e20ce085763b4fc9948eaa715fb7e49341c8.tar.bz2 |
Obvious unnecessary loop removal. Follow through from previous checkin.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149398 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen')
-rw-r--r-- | lib/CodeGen/RegAllocFast.cpp | 21 |
1 files changed, 10 insertions, 11 deletions
diff --git a/lib/CodeGen/RegAllocFast.cpp b/lib/CodeGen/RegAllocFast.cpp index ceba05c..a54785d 100644 --- a/lib/CodeGen/RegAllocFast.cpp +++ b/lib/CodeGen/RegAllocFast.cpp @@ -775,17 +775,16 @@ void RAFast::addRetOperands(MachineBasicBlock *MBB) { continue; unsigned OperReg = MO.getReg(); - for (const unsigned *AS = TRI->getOverlaps(Reg); *AS; ++AS) { - if (OperReg != *AS) - continue; - if (OperReg == Reg || TRI->isSuperRegister(OperReg, Reg)) { - // If the ret already has an operand for this physreg or a superset, - // don't duplicate it. Set the kill flag if the value is defined. - if (hasDef && !MO.isKill()) - MO.setIsKill(); - Found = true; - break; - } + if (!TargetRegisterInfo::isPhysicalRegister(OperReg)) + continue; + + if (OperReg == Reg || TRI->isSuperRegister(OperReg, Reg)) { + // If the ret already has an operand for this physreg or a superset, + // don't duplicate it. Set the kill flag if the value is defined. + if (hasDef && !MO.isKill()) + MO.setIsKill(); + Found = true; + break; } } if (!Found) |