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

This reverts commit babb59496b540583c6951813d1e0b3abdea97e7d.

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.

diff --git a/llvm/test/Transforms/PhaseOrdering/memcpyopt.ll b/llvm/test/Transforms/PhaseOrdering/memcpyopt.ll
deleted file mode 100644 (file)
index 39b4f3b..0000000
--- a/llvm/test/Transforms/PhaseOrdering/memcpyopt.ll
+++ /dev/null
@@ -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}