From e2d3067f6b58892dc6e8c72908aa148708c40381 Mon Sep 17 00:00:00 2001 From: Jakob Stoklund Olesen Date: Tue, 6 Jul 2010 23:40:35 +0000 Subject: Remove references to INSERT_SUBREG after de-SSA llvm-svn: 107732 --- llvm/lib/CodeGen/TwoAddressInstructionPass.cpp | 24 +++++------------------- 1 file changed, 5 insertions(+), 19 deletions(-) (limited to 'llvm/lib/CodeGen/TwoAddressInstructionPass.cpp') diff --git a/llvm/lib/CodeGen/TwoAddressInstructionPass.cpp b/llvm/lib/CodeGen/TwoAddressInstructionPass.cpp index efe14e6b28a..48ced83b3b2 100644 --- a/llvm/lib/CodeGen/TwoAddressInstructionPass.cpp +++ b/llvm/lib/CodeGen/TwoAddressInstructionPass.cpp @@ -1359,25 +1359,11 @@ TwoAddressInstructionPass::CoalesceExtSubRegs(SmallVector &Srcs, // Insert a copy or an extract to replace the original extracts. MachineBasicBlock::iterator InsertLoc = SomeMI; - if (NewSrcSubIdx) { - // Insert an extract subreg. - BuildMI(*SomeMI->getParent(), InsertLoc, SomeMI->getDebugLoc(), - TII->get(TargetOpcode::EXTRACT_SUBREG), DstReg) - .addReg(SrcReg).addImm(NewSrcSubIdx); - } else if (NewDstSubIdx) { - // Do a subreg insertion. - BuildMI(*SomeMI->getParent(), InsertLoc, SomeMI->getDebugLoc(), - TII->get(TargetOpcode::INSERT_SUBREG), DstReg) - .addReg(DstReg).addReg(SrcReg).addImm(NewDstSubIdx); - } else { - // Insert a copy. - bool Emitted = - TII->copyRegToReg(*SomeMI->getParent(), InsertLoc, DstReg, SrcReg, - MRI->getRegClass(DstReg), MRI->getRegClass(SrcReg), - SomeMI->getDebugLoc()); - (void)Emitted; - } - MachineBasicBlock::iterator CopyMI = prior(InsertLoc); + MachineInstr *CopyMI = BuildMI(*SomeMI->getParent(), SomeMI, + SomeMI->getDebugLoc(), + TII->get(TargetOpcode::COPY)) + .addReg(DstReg, RegState::Define, NewDstSubIdx) + .addReg(SrcReg, 0, NewSrcSubIdx); // Remove all the old extract instructions. for (MachineRegisterInfo::use_nodbg_iterator -- cgit v1.2.3