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Diffstat (limited to 'llvm/lib/Target/PowerPC/PPCISelLowering.cpp')
-rw-r--r--llvm/lib/Target/PowerPC/PPCISelLowering.cpp18
1 files changed, 12 insertions, 6 deletions
diff --git a/llvm/lib/Target/PowerPC/PPCISelLowering.cpp b/llvm/lib/Target/PowerPC/PPCISelLowering.cpp
index 5b419a5bdf8..1258d96cf62 100644
--- a/llvm/lib/Target/PowerPC/PPCISelLowering.cpp
+++ b/llvm/lib/Target/PowerPC/PPCISelLowering.cpp
@@ -2698,9 +2698,10 @@ PPCTargetLowering::LowerFormalArguments_64SVR4(
unsigned ObjSize = ObjectVT.getStoreSize();
unsigned ArgSize = ObjSize;
ISD::ArgFlagsTy Flags = Ins[ArgNo].Flags;
- std::advance(FuncArg, Ins[ArgNo].OrigArgIndex - CurArgIdx);
- CurArgIdx = Ins[ArgNo].OrigArgIndex;
-
+ if (Ins[ArgNo].isOrigArg()) {
+ std::advance(FuncArg, Ins[ArgNo].getOrigArgIndex() - CurArgIdx);
+ CurArgIdx = Ins[ArgNo].getOrigArgIndex();
+ }
// We re-align the argument offset for each argument, except when using the
// fast calling convention, when we need to make sure we do that only when
// we'll actually use a stack slot.
@@ -2723,6 +2724,8 @@ PPCTargetLowering::LowerFormalArguments_64SVR4(
// FIXME the codegen can be much improved in some cases.
// We do not have to keep everything in memory.
if (Flags.isByVal()) {
+ assert(Ins[ArgNo].isOrigArg() && "Byval arguments cannot be implicit");
+
if (CallConv == CallingConv::Fast)
ComputeArgOffset();
@@ -3101,9 +3104,10 @@ PPCTargetLowering::LowerFormalArguments_Darwin(
unsigned ObjSize = ObjectVT.getSizeInBits()/8;
unsigned ArgSize = ObjSize;
ISD::ArgFlagsTy Flags = Ins[ArgNo].Flags;
- std::advance(FuncArg, Ins[ArgNo].OrigArgIndex - CurArgIdx);
- CurArgIdx = Ins[ArgNo].OrigArgIndex;
-
+ if (Ins[ArgNo].isOrigArg()) {
+ std::advance(FuncArg, Ins[ArgNo].getOrigArgIndex() - CurArgIdx);
+ CurArgIdx = Ins[ArgNo].getOrigArgIndex();
+ }
unsigned CurArgOffset = ArgOffset;
// Varargs or 64 bit Altivec parameters are padded to a 16 byte boundary.
@@ -3124,6 +3128,8 @@ PPCTargetLowering::LowerFormalArguments_Darwin(
// FIXME the codegen can be much improved in some cases.
// We do not have to keep everything in memory.
if (Flags.isByVal()) {
+ assert(Ins[ArgNo].isOrigArg() && "Byval arguments cannot be implicit");
+
// ObjSize is the true size, ArgSize rounded up to multiple of registers.
ObjSize = Flags.getByValSize();
ArgSize = ((ObjSize + PtrByteSize - 1)/PtrByteSize) * PtrByteSize;
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