Specify MachinePointerInfo as refering to the argument value and offset of the
store when handling byval arguments. Thus preventing reordering of the store
with load with post-RA scheduler.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164553 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/PowerPC/PPCISelLowering.cpp b/lib/Target/PowerPC/PPCISelLowering.cpp
index 2e8fa18..239aa2b 100644
--- a/lib/Target/PowerPC/PPCISelLowering.cpp
+++ b/lib/Target/PowerPC/PPCISelLowering.cpp
@@ -2048,7 +2048,8 @@
SmallVector<SDValue, 8> MemOps;
unsigned nAltivecParamsAtEnd = 0;
- for (unsigned ArgNo = 0, e = Ins.size(); ArgNo != e; ++ArgNo) {
+ Function::const_arg_iterator FuncArg = MF.getFunction()->arg_begin();
+ for (unsigned ArgNo = 0, e = Ins.size(); ArgNo != e; ++ArgNo, ++FuncArg) {
SDValue ArgVal;
bool needsLoad = false;
EVT ObjectVT = Ins[ArgNo].VT;
@@ -2103,7 +2104,8 @@
EVT ObjType = (ObjSize == 1 ? MVT::i8 :
(ObjSize == 2 ? MVT::i16 : MVT::i32));
SDValue Store = DAG.getTruncStore(Val.getValue(1), dl, Val, FIN,
- MachinePointerInfo(),
+ MachinePointerInfo(FuncArg,
+ CurArgOffset),
ObjType, false, false, 0);
MemOps.push_back(Store);
++GPR_idx;
@@ -2136,7 +2138,7 @@
}
SDValue Store = DAG.getStore(Val.getValue(1), dl, Shifted, FIN,
- MachinePointerInfo(),
+ MachinePointerInfo(FuncArg, ArgOffset),
false, false, 0);
MemOps.push_back(Store);
++GPR_idx;