ARM refactor more NEON VLD/VST instructions to use composite physregs
Register pair VLD1/VLD2 all-lanes instructions. Kill off more of the
pseudos as a result.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152150 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/ARM/AsmParser/ARMAsmParser.cpp b/lib/Target/ARM/AsmParser/ARMAsmParser.cpp
index 2045482..fcb8544 100644
--- a/lib/Target/ARM/AsmParser/ARMAsmParser.cpp
+++ b/lib/Target/ARM/AsmParser/ARMAsmParser.cpp
@@ -1133,9 +1133,10 @@
return VectorList.Count == 1;
}
- bool isVecListTwoDAllLanes() const {
+ bool isVecListDPairAllLanes() const {
if (!isSingleSpacedVectorAllLanes()) return false;
- return VectorList.Count == 2;
+ return (ARMMCRegisterClasses[ARM::DPairRegClassID]
+ .contains(VectorList.RegNum));
}
bool isVecListTwoQAllLanes() const {
@@ -2981,12 +2982,13 @@
case NoLanes:
E = Parser.getTok().getLoc();
Reg = MRI->getMatchingSuperReg(Reg, ARM::dsub_0,
- &ARMMCRegisterClasses[ARM::DPairRegClassID]);
-
+ &ARMMCRegisterClasses[ARM::DPairRegClassID]);
Operands.push_back(ARMOperand::CreateVectorList(Reg, 2, false, S, E));
break;
case AllLanes:
E = Parser.getTok().getLoc();
+ Reg = MRI->getMatchingSuperReg(Reg, ARM::dsub_0,
+ &ARMMCRegisterClasses[ARM::DPairRegClassID]);
Operands.push_back(ARMOperand::CreateVectorListAllLanes(Reg, 2, false,
S, E));
break;
@@ -3152,7 +3154,7 @@
switch (LaneKind) {
case NoLanes:
- // Non-lane two-register operands have been converted to the
+ // Two-register operands have been converted to the
// composite register classes.
if (Count == 2) {
const MCRegisterClass *RC = (Spacing == 1) ?
@@ -3165,6 +3167,12 @@
(Spacing == 2), S, E));
break;
case AllLanes:
+ // Two-register operands have been converted to the
+ // composite register classes.
+ if (Count == 2 && Spacing == 1) {
+ const MCRegisterClass *RC = &ARMMCRegisterClasses[ARM::DPairRegClassID];
+ FirstReg = MRI->getMatchingSuperReg(FirstReg, ARM::dsub_0, RC);
+ }
Operands.push_back(ARMOperand::CreateVectorListAllLanes(FirstReg, Count,
(Spacing == 2),
S, E));