Initial support for allocation condition registers
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21246 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/PowerPC/PPCInstrInfo.cpp b/lib/Target/PowerPC/PPCInstrInfo.cpp
index ec25239..d8f008a 100644
--- a/lib/Target/PowerPC/PPCInstrInfo.cpp
+++ b/lib/Target/PowerPC/PPCInstrInfo.cpp
@@ -65,6 +65,14 @@
sourceReg = MI.getOperand(1).getReg();
destReg = MI.getOperand(0).getReg();
return true;
+ } else if (oc == PPC::MCRF) { // mcrf cr1, cr2
+ assert(MI.getNumOperands() == 2 &&
+ MI.getOperand(0).isRegister() &&
+ MI.getOperand(1).isRegister() &&
+ "invalid PPC MCRF instruction");
+ sourceReg = MI.getOperand(1).getReg();
+ destReg = MI.getOperand(0).getReg();
+ return true;
}
return false;
}