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| author | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2010-07-16 04:45:42 +0000 |
|---|---|---|
| committer | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2010-07-16 04:45:42 +0000 |
| commit | 04c528a0c86ddf3d6a70681f72e1b2ec07b0b53a (patch) | |
| tree | 505297406920ed805d20fff2ce7b51e7bcafb0e1 /lib/CodeGen/TailDuplication.cpp | |
| parent | 18c479c600a02927fedb51629222d0e391d89a26 (diff) | |
| download | llvm-04c528a0c86ddf3d6a70681f72e1b2ec07b0b53a.tar.gz llvm-04c528a0c86ddf3d6a70681f72e1b2ec07b0b53a.tar.bz2 llvm-04c528a0c86ddf3d6a70681f72e1b2ec07b0b53a.tar.xz | |
Remove many calls to TII::isMoveInstr. Targets should be producing COPY anyway.
TII::isMoveInstr is going tobe completely removed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108507 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/TailDuplication.cpp')
| -rw-r--r-- | lib/CodeGen/TailDuplication.cpp | 17 |
1 files changed, 9 insertions, 8 deletions
diff --git a/lib/CodeGen/TailDuplication.cpp b/lib/CodeGen/TailDuplication.cpp index 075db803bd..aac8a0a206 100644 --- a/lib/CodeGen/TailDuplication.cpp +++ b/lib/CodeGen/TailDuplication.cpp @@ -254,14 +254,15 @@ bool TailDuplicatePass::TailDuplicateBlocks(MachineFunction &MF) { // SSA form. for (unsigned i = 0, e = Copies.size(); i != e; ++i) { MachineInstr *Copy = Copies[i]; - unsigned Src, Dst, SrcSR, DstSR; - if (TII->isMoveInstr(*Copy, Src, Dst, SrcSR, DstSR)) { - MachineRegisterInfo::use_iterator UI = MRI->use_begin(Src); - if (++UI == MRI->use_end()) { - // Copy is the only use. Do trivial copy propagation here. - MRI->replaceRegWith(Dst, Src); - Copy->eraseFromParent(); - } + if (!Copy->isCopy()) + continue; + unsigned Dst = Copy->getOperand(0).getReg(); + unsigned Src = Copy->getOperand(1).getReg(); + MachineRegisterInfo::use_iterator UI = MRI->use_begin(Src); + if (++UI == MRI->use_end()) { + // Copy is the only use. Do trivial copy propagation here. + MRI->replaceRegWith(Dst, Src); + Copy->eraseFromParent(); } } |