maxjhandsome
/
llvm-project
forked from OSchip/llvm-project
1
0
Fork 0
Code Issues Pull Requests Packages Releases Wiki Activity

Disable use of the Phi machine instruction which is no longer needed 

for register allocation.

llvm-svn: 1270
This commit is contained in:
Vikram S. Adve 2001-11-12 18:54:11 +00:00
parent 03fae5e5db
commit 01daa32a92
1 changed files with 5 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
llvm/lib/Target/Sparc/SparcInstrSelection.cpp
View File

@ -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