From 3438b21ebde9424e26561e39c2882bf2368167d8 Mon Sep 17 00:00:00 2001 From: "Vikram S. Adve" Date: Mon, 12 Nov 2001 18:54:11 +0000 Subject: Disable use of the Phi machine instruction which is no longer needed for register allocation. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1270 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/Target/SparcV9/SparcV9InstrSelection.cpp | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'lib/Target/SparcV9/SparcV9InstrSelection.cpp') diff --git a/lib/Target/SparcV9/SparcV9InstrSelection.cpp b/lib/Target/SparcV9/SparcV9InstrSelection.cpp index 533d74c..4feecbb 100644 --- a/lib/Target/SparcV9/SparcV9InstrSelection.cpp +++ b/lib/Target/SparcV9/SparcV9InstrSelection.cpp @@ -2017,6 +2017,10 @@ GetInstructionsByRule(InstructionNode* subtreeRoot, } case 64: // reg: Phi(reg,reg) + numInstr = 0; // don't forward the value + break; +#undef NEED_PHI_MACHINE_INSTRS +#ifdef NEED_PHI_MACHINE_INSTRS { // This instruction has variable #operands, so resultPos is 0. Instruction* phi = subtreeRoot->getInstruction(); mvec[0] = new MachineInstr(PHI, 1 + phi->getNumOperands()); @@ -2027,6 +2031,7 @@ GetInstructionsByRule(InstructionNode* subtreeRoot, phi->getOperand(i)); break; } +#endif NEED_PHI_MACHINE_INSTRS case 71: // reg: VReg case 72: // reg: Constant -- cgit v1.1