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| author | Bill Wendling <isanbard@gmail.com> | 2011-10-11 00:10:41 +0000 |
|---|---|---|
| committer | Bill Wendling <isanbard@gmail.com> | 2011-10-11 00:10:41 +0000 |
| commit | 3f56d4b957b04aaaf3ad27900713ea4d67f3189e (patch) | |
| tree | 8eacc0396ca13cc6125d34ba67f35e0c680cab6a /lib/Target/ARM/Thumb2ITBlockPass.cpp | |
| parent | bb5b3f33594cfa40e9f53bf9a71af359b080a697 (diff) | |
| download | llvm-3f56d4b957b04aaaf3ad27900713ea4d67f3189e.tar.gz llvm-3f56d4b957b04aaaf3ad27900713ea4d67f3189e.tar.bz2 llvm-3f56d4b957b04aaaf3ad27900713ea4d67f3189e.tar.xz | |
Simplify check that optional def is there and is CPSR.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141602 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/ARM/Thumb2ITBlockPass.cpp')
| -rw-r--r-- | lib/Target/ARM/Thumb2ITBlockPass.cpp | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/lib/Target/ARM/Thumb2ITBlockPass.cpp b/lib/Target/ARM/Thumb2ITBlockPass.cpp index 2bf99bfd5c..b6274007b2 100644 --- a/lib/Target/ARM/Thumb2ITBlockPass.cpp +++ b/lib/Target/ARM/Thumb2ITBlockPass.cpp @@ -140,11 +140,10 @@ Thumb2ITBlockPass::MoveCopyOutOfITBlock(MachineInstr *MI, // rsb r1, 0 // rsb r2, 0 // - // - for (unsigned I = 0, E = MI->getNumOperands(); I != E; ++I) - if (MI->getOperand(I).isReg() && MI->getOperand(I).getReg() == ARM::CPSR && - MI->getOperand(I).isDef()) - return false; + const MCInstrDesc &MCID = MI->getDesc(); + if (MCID.hasOptionalDef() && + MI->getOperand(MCID.getNumOperands() - 1).getReg() == ARM::CPSR) + return false; // Then peek at the next instruction to see if it's predicated on CC or OCC. // If not, then there is nothing to be gained by moving the copy. |