Convert EXTRACT_SUBREG to COPY when emitting machine instrs.
EXTRACT_SUBREG no longer appears as a machine instruction. Use COPY instead.
Add isCopy() checks in many places using isMoveInstr() and isExtractSubreg().
The isMoveInstr hook will be removed later.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107879 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/ARM/NEONPreAllocPass.cpp b/lib/Target/ARM/NEONPreAllocPass.cpp
index fa69f1a..e33a504 100644
--- a/lib/Target/ARM/NEONPreAllocPass.cpp
+++ b/lib/Target/ARM/NEONPreAllocPass.cpp
@@ -407,7 +407,7 @@
"expected a virtual register");
// Extracting from a Q or QQ register.
MachineInstr *DefMI = MRI->getVRegDef(VirtReg);
- if (!DefMI || !DefMI->isExtractSubreg())
+ if (!DefMI || !DefMI->isCopy() || !DefMI->getOperand(1).getSubReg())
return false;
VirtReg = DefMI->getOperand(1).getReg();
if (LastSrcReg && LastSrcReg != VirtReg)
@@ -418,7 +418,7 @@
RC != ARM::QQPRRegisterClass &&
RC != ARM::QQQQPRRegisterClass)
return false;
- unsigned SubIdx = DefMI->getOperand(2).getImm();
+ unsigned SubIdx = DefMI->getOperand(1).getSubReg();
if (LastSubIdx) {
if (LastSubIdx != SubIdx-Stride)
return false;
@@ -445,7 +445,7 @@
MachineOperand &MO = MI->getOperand(FirstOpnd + R);
unsigned OldReg = MO.getReg();
MachineInstr *DefMI = MRI->getVRegDef(OldReg);
- assert(DefMI->isExtractSubreg());
+ assert(DefMI->isCopy());
MO.setReg(LastSrcReg);
MO.setSubReg(SubIds[R]);
MO.setIsKill(false);