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[NVPTX] Allow MemTransferInst in adjustByValArgAlignment #112462

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Merged
merged 3 commits into from
Oct 17, 2024
Merged

[NVPTX] Allow MemTransferInst in adjustByValArgAlignment #112462

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11e103b
[NVPTX] Allow MemTransferInst in adjustByValArgAlignment
jsji Oct 16, 2024
4319219
mark newfunc as kernel
jsji Oct 16, 2024
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update checks
jsji Oct 16, 2024
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3 changes: 3 additions & 0 deletions llvm/lib/Target/NVPTX/NVPTXLowerArgs.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -435,6 +435,9 @@ static void adjustByValArgAlignment(Argument *Arg, Value *ArgInParamAS,
continue;
}

if (isa<MemTransferInst>(CurUser))
continue;

// supported for grid_constant
if (IsGridConstant &&
(isa<CallInst>(CurUser) || isa<StoreInst>(CurUser) ||
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14 changes: 14 additions & 0 deletions llvm/test/CodeGen/NVPTX/lower-byval-args.ll
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Expand Up @@ -219,6 +219,20 @@ entry:
ret void
}

; Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: readwrite)
define dso_local void @memcpy_from_param_noalign (ptr nocapture noundef writeonly %out, ptr nocapture noundef readonly byval(%struct.S) %s) local_unnamed_addr #0 {
; COMMON-LABEL: define dso_local void @memcpy_from_param_noalign(
; COMMON-SAME: ptr nocapture noundef writeonly [[OUT:%.*]], ptr nocapture noundef readonly byval([[STRUCT_S:%.*]]) align 4 [[S:%.*]]) local_unnamed_addr #[[ATTR0]] {
; COMMON-NEXT: [[ENTRY:.*:]]
; COMMON-NEXT: [[S1:%.*]] = addrspacecast ptr [[S]] to ptr addrspace(101)
; COMMON-NEXT: call void @llvm.memcpy.p0.p101.i64(ptr [[OUT]], ptr addrspace(101) [[S1]], i64 16, i1 true)
; COMMON-NEXT: ret void
;
entry:
tail call void @llvm.memcpy.p0.p0.i64(ptr %out, ptr %s, i64 16, i1 true)
ret void
}

; Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: readwrite)
define dso_local void @memcpy_to_param(ptr nocapture noundef readonly %in, ptr nocapture noundef readnone byval(%struct.S) align 4 %s) local_unnamed_addr #0 {
; COMMON-LABEL: define dso_local void @memcpy_to_param(
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