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Revert "[PhaseOrdering] add test for memcpy removal (PR47114); NFC" 

This reverts commit babb59496b.

This test addition was queued up with some unrelated changes,
but it seems more likely that we need to fix something internal
to -memcpyopt. Also, I'm not sure if including target-specifc
attributes in a generic regression test dir will cause bot
problems.
This commit is contained in:
Sanjay Patel 2020-08-16 09:52:33 -04:00
parent 3ffb751f3d
commit 29e1d16a3e
1 changed files with 0 additions and 134 deletions
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134
llvm/test/Transforms/PhaseOrdering/memcpyopt.ll
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@ -1,134 +0,0 @@
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -O2 -S < %s | FileCheck %s --check-prefixes=ANY,OLDPM
; RUN: opt -passes='default<O2>' -aa-pipeline=default -S < %s | FileCheck %s --check-prefixes=ANY,NEWPM
; There should not be any remaining 'memcpy' calls in this code.
; http://bugs.llvm.org/PR47114
target datalayout = "e-m:o-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
%struct.Arr = type { [2 x %struct.String] }
%struct.String = type { i64, i64, i8* }
%struct.PartialArr = type { %struct.Arr }
define void @c(%struct.Arr* noalias sret align 8 %agg.result) #0 {
; OLDPM-LABEL: @c(
; OLDPM-NEXT: entry:
; OLDPM-NEXT: [[DATA:%.*]] = alloca [[STRUCT_PARTIALARR:%.*]], align 8
; OLDPM-NEXT: [[TMP0:%.*]] = bitcast %struct.PartialArr* [[DATA]] to i8*
; OLDPM-NEXT: call void @llvm.lifetime.start.p0i8(i64 48, i8* nonnull [[TMP0]]) [[ATTR3:#.*]]
; OLDPM-NEXT: [[TMP1:%.*]] = bitcast %struct.PartialArr* [[DATA]] to i8*
; OLDPM-NEXT: call void @llvm.memset.p0i8.i64(i8* nonnull align 8 dereferenceable(24) [[TMP1]], i8 0, i64 24, i1 false)
; OLDPM-NEXT: [[ARRAYIDX_1:%.*]] = getelementptr inbounds [[STRUCT_PARTIALARR]], %struct.PartialArr* [[DATA]], i64 0, i32 0, i32 0, i64 1
; OLDPM-NEXT: [[TMP2:%.*]] = bitcast %struct.String* [[ARRAYIDX_1]] to i8*
; OLDPM-NEXT: call void @llvm.memset.p0i8.i64(i8* nonnull align 8 dereferenceable(24) [[TMP2]], i8 0, i64 24, i1 false)
; OLDPM-NEXT: [[TMP3:%.*]] = bitcast %struct.Arr* [[AGG_RESULT:%.*]] to i8*
; OLDPM-NEXT: call void @llvm.memcpy.p0i8.p0i8.i64(i8* nonnull align 8 dereferenceable(48) [[TMP3]], i8* nonnull align 8 dereferenceable(48) [[TMP0]], i64 48, i1 false), !tbaa.struct !3
; OLDPM-NEXT: call void @llvm.lifetime.end.p0i8(i64 48, i8* nonnull [[TMP0]]) [[ATTR3]]
; OLDPM-NEXT: ret void
;
; NEWPM-LABEL: @c(
; NEWPM-NEXT: entry:
; NEWPM-NEXT: [[DATA_SROA_0:%.*]] = alloca [2 x %struct.String], align 8
; NEWPM-NEXT: [[DATA_SROA_0_0__SROA_CAST19:%.*]] = bitcast [2 x %struct.String]* [[DATA_SROA_0]] to i8*
; NEWPM-NEXT: call void @llvm.lifetime.start.p0i8(i64 48, i8* nonnull [[DATA_SROA_0_0__SROA_CAST19]])
; NEWPM-NEXT: call void @llvm.memset.p0i8.i64(i8* nonnull align 8 dereferenceable(24) [[DATA_SROA_0_0__SROA_CAST19]], i8 0, i64 24, i1 false)
; NEWPM-NEXT: [[DATA_SROA_0_24__SROA_IDX:%.*]] = getelementptr inbounds [2 x %struct.String], [2 x %struct.String]* [[DATA_SROA_0]], i64 0, i64 1
; NEWPM-NEXT: [[DATA_SROA_0_24__SROA_CAST18:%.*]] = bitcast %struct.String* [[DATA_SROA_0_24__SROA_IDX]] to i8*
; NEWPM-NEXT: call void @llvm.memset.p0i8.i64(i8* nonnull align 8 dereferenceable(24) [[DATA_SROA_0_24__SROA_CAST18]], i8 0, i64 24, i1 false)
; NEWPM-NEXT: [[DATA_SROA_0_0__SROA_CAST14:%.*]] = bitcast %struct.Arr* [[AGG_RESULT:%.*]] to i8*
; NEWPM-NEXT: call void @llvm.memcpy.p0i8.p0i8.i64(i8* nonnull align 8 dereferenceable(48) [[DATA_SROA_0_0__SROA_CAST14]], i8* nonnull align 8 dereferenceable(48) [[DATA_SROA_0_0__SROA_CAST19]], i64 48, i1 false), !tbaa.struct !3
; NEWPM-NEXT: call void @llvm.lifetime.end.p0i8(i64 48, i8* nonnull [[DATA_SROA_0_0__SROA_CAST19]])
; NEWPM-NEXT: ret void
;
entry:
%data = alloca %struct.PartialArr, align 8
%slots = alloca [2 x %struct.String]*, align 8
%i = alloca i64, align 8
%tmp = alloca %struct.String, align 8
%0 = bitcast %struct.PartialArr* %data to i8*
call void @llvm.lifetime.start.p0i8(i64 48, i8* %0) #3
%1 = bitcast [2 x %struct.String]** %slots to i8*
call void @llvm.lifetime.start.p0i8(i64 8, i8* %1) #3
%value = getelementptr inbounds %struct.PartialArr, %struct.PartialArr* %data, i32 0, i32 0
%data1 = getelementptr inbounds %struct.Arr, %struct.Arr* %value, i32 0, i32 0
store [2 x %struct.String]* %data1, [2 x %struct.String]** %slots, align 8, !tbaa !3
%2 = bitcast i64* %i to i8*
call void @llvm.lifetime.start.p0i8(i64 8, i8* %2) #3
store i64 0, i64* %i, align 8, !tbaa !7
br label %for.cond
for.cond: ; preds = %for.inc, %entry
%3 = load i64, i64* %i, align 8, !tbaa !7
%cmp = icmp ult i64 %3, 2
br i1 %cmp, label %for.body, label %for.cond.cleanup
for.cond.cleanup: ; preds = %for.cond
%4 = bitcast i64* %i to i8*
call void @llvm.lifetime.end.p0i8(i64 8, i8* %4) #3
br label %for.end
for.body: ; preds = %for.cond
%5 = load [2 x %struct.String]*, [2 x %struct.String]** %slots, align 8, !tbaa !3
%6 = load i64, i64* %i, align 8, !tbaa !7
%arrayidx = getelementptr inbounds [2 x %struct.String], [2 x %struct.String]* %5, i64 0, i64 %6
%7 = bitcast %struct.String* %tmp to i8*
call void @llvm.lifetime.start.p0i8(i64 24, i8* %7) #3
call void @new_string(%struct.String* sret align 8 %tmp)
%8 = bitcast %struct.String* %arrayidx to i8*
%9 = bitcast %struct.String* %tmp to i8*
call void @llvm.memcpy.p0i8.p0i8.i64(i8* align 8 %8, i8* align 8 %9, i64 24, i1 false), !tbaa.struct !9
%10 = bitcast %struct.String* %tmp to i8*
call void @llvm.lifetime.end.p0i8(i64 24, i8* %10) #3
br label %for.inc
for.inc: ; preds = %for.body
%11 = load i64, i64* %i, align 8, !tbaa !7
%inc = add i64 %11, 1
store i64 %inc, i64* %i, align 8, !tbaa !7
br label %for.cond
for.end: ; preds = %for.cond.cleanup
%value2 = getelementptr inbounds %struct.PartialArr, %struct.PartialArr* %data, i32 0, i32 0
%12 = bitcast %struct.Arr* %agg.result to i8*
%13 = bitcast %struct.Arr* %value2 to i8*
call void @llvm.memcpy.p0i8.p0i8.i64(i8* align 8 %12, i8* align 8 %13, i64 48, i1 false), !tbaa.struct !10
%14 = bitcast [2 x %struct.String]** %slots to i8*
call void @llvm.lifetime.end.p0i8(i64 8, i8* %14) #3
%15 = bitcast %struct.PartialArr* %data to i8*
call void @llvm.lifetime.end.p0i8(i64 48, i8* %15) #3
ret void
}
declare void @llvm.lifetime.start.p0i8(i64 immarg, i8* nocapture) #1
declare void @llvm.memcpy.p0i8.p0i8.i64(i8* noalias nocapture writeonly, i8* noalias nocapture readonly, i64, i1 immarg) #1
declare void @llvm.lifetime.end.p0i8(i64 immarg, i8* nocapture) #1
declare void @llvm.memset.p0i8.i64(i8* nocapture writeonly, i8, i64, i1 immarg) #2
define internal void @new_string(%struct.String* noalias sret align 8 %agg.result) #0 {
entry:
%0 = bitcast %struct.String* %agg.result to i8*
call void @llvm.memset.p0i8.i64(i8* align 8 %0, i8 0, i64 24, i1 false)
ret void
}
attributes #0 = { nounwind ssp uwtable "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "frame-pointer"="none" "less-precise-fpmad"="false" "min-legal-vector-width"="0" "no-infs-fp-math"="false" "no-jump-tables"="false" "no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="penryn" "target-features"="+cx16,+cx8,+fxsr,+mmx,+sahf,+sse,+sse2,+sse3,+sse4.1,+ssse3,+x87" "unsafe-fp-math"="false" "use-soft-float"="false" }
attributes #1 = { argmemonly nounwind willreturn }
attributes #2 = { argmemonly nounwind willreturn writeonly }
attributes #3 = { nounwind }
!llvm.module.flags = !{!0, !1}
!llvm.ident = !{!2}
!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{i32 7, !"PIC Level", i32 2}
!2 = !{!"clang version 12.0.0 (https://github.com/llvm/llvm-project.git c0bdd0753b8a3baf0629e724dc16f77b68fd9c3e)"}
!3 = !{!4, !4, i64 0}
!4 = !{!"any pointer", !5, i64 0}
!5 = !{!"omnipotent char", !6, i64 0}
!6 = !{!"Simple C/C++ TBAA"}
!7 = !{!8, !8, i64 0}
!8 = !{!"long", !5, i64 0}
!9 = !{i64 0, i64 8, !7, i64 8, i64 8, !7, i64 16, i64 8, !3}
!10 = !{i64 0, i64 48, !11}
!11 = !{!5, !5, i64 0}