From de7266c611b37ec050efb53b73166081a98cea13 Mon Sep 17 00:00:00 2001 From: Manman Ren Date: Fri, 29 Jun 2012 21:33:59 +0000 Subject: Add SrcReg2 to analyzeCompare and optimizeCompareInstr to handle Compare instructions with two register operands. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159465 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/CodeGen/PeepholeOptimizer.cpp | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) (limited to 'lib/CodeGen/PeepholeOptimizer.cpp') diff --git a/lib/CodeGen/PeepholeOptimizer.cpp b/lib/CodeGen/PeepholeOptimizer.cpp index b16fa79cd6..91c33c4af4 100644 --- a/lib/CodeGen/PeepholeOptimizer.cpp +++ b/lib/CodeGen/PeepholeOptimizer.cpp @@ -368,14 +368,15 @@ bool PeepholeOptimizer::optimizeCmpInstr(MachineInstr *MI, MachineBasicBlock *MBB) { // If this instruction is a comparison against zero and isn't comparing a // physical register, we can try to optimize it. - unsigned SrcReg; + unsigned SrcReg, SrcReg2; int CmpMask, CmpValue; - if (!TII->AnalyzeCompare(MI, SrcReg, CmpMask, CmpValue) || - TargetRegisterInfo::isPhysicalRegister(SrcReg)) + if (!TII->analyzeCompare(MI, SrcReg, SrcReg2, CmpMask, CmpValue) || + TargetRegisterInfo::isPhysicalRegister(SrcReg) || + (SrcReg2 != 0 && TargetRegisterInfo::isPhysicalRegister(SrcReg2))) return false; // Attempt to optimize the comparison instruction. - if (TII->OptimizeCompareInstr(MI, SrcReg, CmpMask, CmpValue, MRI)) { + if (TII->optimizeCompareInstr(MI, SrcReg, SrcReg2, CmpMask, CmpValue, MRI)) { ++NumCmps; return true; } -- cgit v1.2.3-70-g09d2