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| author | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2012-02-22 22:50:14 +0000 |
|---|---|---|
| committer | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2012-02-22 22:50:14 +0000 |
| commit | be2af7ee781cd0083124514f497b8cf3070776ec (patch) | |
| tree | 3bd126985e9ecd05e5d3224e1bfbb3333d745088 /lib/CodeGen/RegisterScavenging.cpp | |
| parent | 8ae3ac7a8c2112ab739b4a0dc24f28b2bbb84117 (diff) | |
| download | llvm-be2af7ee781cd0083124514f497b8cf3070776ec.tar.gz llvm-be2af7ee781cd0083124514f497b8cf3070776ec.tar.bz2 llvm-be2af7ee781cd0083124514f497b8cf3070776ec.tar.xz | |
Handle regmasks in RegisterScavenging.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151210 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/RegisterScavenging.cpp')
| -rw-r--r-- | lib/CodeGen/RegisterScavenging.cpp | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/lib/CodeGen/RegisterScavenging.cpp b/lib/CodeGen/RegisterScavenging.cpp index 3cb44b6d25..bb31e0a774 100644 --- a/lib/CodeGen/RegisterScavenging.cpp +++ b/lib/CodeGen/RegisterScavenging.cpp @@ -148,6 +148,8 @@ void RegScavenger::forward() { DefRegs.reset(); for (unsigned i = 0, e = MI->getNumOperands(); i != e; ++i) { const MachineOperand &MO = MI->getOperand(i); + if (MO.isRegMask()) + (isPred ? DefRegs : KillRegs).setBitsNotInMask(MO.getRegMask()); if (!MO.isReg()) continue; unsigned Reg = MO.getReg(); @@ -279,6 +281,8 @@ unsigned RegScavenger::findSurvivorReg(MachineBasicBlock::iterator StartMI, // Remove any candidates touched by instruction. for (unsigned i = 0, e = MI->getNumOperands(); i != e; ++i) { const MachineOperand &MO = MI->getOperand(i); + if (MO.isRegMask()) + Candidates.clearBitsNotInMask(MO.getRegMask()); if (!MO.isReg() || MO.isUndef() || !MO.getReg()) continue; if (TargetRegisterInfo::isVirtualRegister(MO.getReg())) { |