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GlobalISel: Surface offsets parameter from ComputeValueVTs

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This commit is contained in:
Matt Arsenault 2021-07-15 12:29:50 -04:00
parent 79609410ad
commit ef17052770
2 changed files with 8 additions and 4 deletions
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6
include/llvm/CodeGen/GlobalISel/CallLowering.h
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@ -355,9 +355,13 @@ protected:
/// Break \p OrigArgInfo into one or more pieces the calling convention can
/// process, returned in \p SplitArgs. For example, this should break structs
/// down into individual fields.
///
/// If \p Offsets is non-null, it points to a vector to be filled in
/// with the in-memory offsets of each of the individual values.
void splitToValueTypes(const ArgInfo &OrigArgInfo,
SmallVectorImpl<ArgInfo> &SplitArgs,
const DataLayout &DL, CallingConv::ID CallConv) const;
const DataLayout &DL, CallingConv::ID CallConv,
SmallVectorImpl<uint64_t> *Offsets = nullptr) const;
/// Generate instructions for unpacking \p SrcReg into the \p DstRegs
/// corresponding to the aggregate type \p PackedTy.

6
lib/CodeGen/GlobalISel/CallLowering.cpp
View File

@ -207,12 +207,12 @@ CallLowering::setArgFlags<CallBase>(CallLowering::ArgInfo &Arg, unsigned OpIdx,
void CallLowering::splitToValueTypes(const ArgInfo &OrigArg,
SmallVectorImpl<ArgInfo> &SplitArgs,
const DataLayout &DL,
CallingConv::ID CallConv) const {
CallingConv::ID CallConv,
SmallVectorImpl<uint64_t> *Offsets) const {
LLVMContext &Ctx = OrigArg.Ty->getContext();
SmallVector<EVT, 4> SplitVTs;
SmallVector<uint64_t, 4> Offsets;
ComputeValueVTs(*TLI, DL, OrigArg.Ty, SplitVTs, &Offsets, 0);
ComputeValueVTs(*TLI, DL, OrigArg.Ty, SplitVTs, Offsets, 0);
if (SplitVTs.size() == 0)
return;