From 17f42e02a10bd4d43e4ba904c640224de2c48f51 Mon Sep 17 00:00:00 2001 From: Jakob Stoklund Olesen Date: Fri, 26 Oct 2012 23:39:46 +0000 Subject: Revert r163298 "Optimize codegen for VSETLNi{8,16,32} operating on Q registers." Keep the integer_insertelement test case, the new coalescer can handle this kind of lane insertion without help from pseudo-instructions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166835 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/Target/ARM/ARMExpandPseudoInsts.cpp | 51 --------------------------------- 1 file changed, 51 deletions(-) (limited to 'lib/Target/ARM/ARMExpandPseudoInsts.cpp') diff --git a/lib/Target/ARM/ARMExpandPseudoInsts.cpp b/lib/Target/ARM/ARMExpandPseudoInsts.cpp index c130b2eede..f7c8a9c2dc 100644 --- a/lib/Target/ARM/ARMExpandPseudoInsts.cpp +++ b/lib/Target/ARM/ARMExpandPseudoInsts.cpp @@ -1208,57 +1208,6 @@ bool ARMExpandPseudo::ExpandMI(MachineBasicBlock &MBB, ExpandLaneOp(MBBI); return true; - case ARM::VSETLNi8Q: - case ARM::VSETLNi16Q: { - // Expand VSETLNs acting on a Q register to equivalent VSETLNs acting - // on the respective D register. - - unsigned QReg = MI.getOperand(1).getReg(); - unsigned QLane = MI.getOperand(3).getImm(); - - unsigned NewOpcode, DLane, DSubReg; - switch (Opcode) { - default: llvm_unreachable("Invalid opcode!"); - case ARM::VSETLNi8Q: - // 4 possible 8-bit lanes per DPR: - NewOpcode = ARM::VSETLNi8; - DLane = QLane % 8; - DSubReg = (QLane / 8) ? ARM::dsub_1 : ARM::dsub_0; - break; - case ARM::VSETLNi16Q: - // 4 possible 16-bit lanes per DPR. - NewOpcode = ARM::VSETLNi16; - DLane = QLane % 4; - DSubReg = (QLane / 4) ? ARM::dsub_1 : ARM::dsub_0; - break; - } - - MachineInstrBuilder MIB = - BuildMI(MBB, MBBI, MI.getDebugLoc(), TII->get(NewOpcode)); - - unsigned DReg = TRI->getSubReg(QReg, DSubReg); - - MIB.addReg(DReg, RegState::Define); // Output DPR - MIB.addReg(DReg); // Input DPR - MIB.addOperand(MI.getOperand(2)); // Input GPR - MIB.addImm(DLane); // Lane - - // Add the predicate operands. - MIB.addOperand(MI.getOperand(4)); - MIB.addOperand(MI.getOperand(5)); - - if (MI.getOperand(1).isKill()) // Add an implicit kill for the Q register. - MIB->addRegisterKilled(QReg, TRI, true); - // And an implicit def of the output register (which should always be the - // same as the input register). - MIB->addRegisterDefined(QReg, TRI); - - TransferImpOps(MI, MIB, MIB); - - MI.eraseFromParent(); - return true; - } - case ARM::VTBL3Pseudo: ExpandVTBL(MBBI, ARM::VTBL3, false); return true; case ARM::VTBL4Pseudo: ExpandVTBL(MBBI, ARM::VTBL4, false); return true; case ARM::VTBX3Pseudo: ExpandVTBL(MBBI, ARM::VTBX3, true); return true; -- cgit v1.2.3