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llvm-project/llvm/test/DebugInfo/Generic/assignment-tracking/memcpyopt/merge-stores.ll
Stephen Tozer 094572701d
[RemoveDIs] Print IR with debug records by default (#91724) 
This patch makes the final major change of the RemoveDIs project, changing the
default IR output from debug intrinsics to debug records. This is expected to
break a large number of tests: every single one that tests for uses or
declarations of debug intrinsics and does not explicitly disable writing
records. 

If this patch has broken your downstream tests (or upstream tests on a
configuration I wasn't able to run):
1. If you need to immediately unblock a build, pass
`--write-experimental-debuginfo=false` to LLVM's option processing for all
failing tests (remember to use `-mllvm` for clang/flang to forward arguments to
LLVM).
2. For most test failures, the changes are trivial and mechanical, enough that
they can be done by script; see the migration guide for a guide on how to do
this: https://llvm.org/docs/RemoveDIsDebugInfo.html#test-updates
3. If any tests fail for reasons other than FileCheck check lines that need
updating, such as assertion failures, that is most likely a real bug with this
patch and should be reported as such.

For more information, see the recent PSA:
https://discourse.llvm.org/t/psa-ir-output-changing-from-debug-intrinsics-to-debug-records/79578
2024-06-14 15:07:27 +01:00

162 lines
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LLVM
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; RUN: opt %s -S -passes=memcpyopt -o - | FileCheck %s
; RUN: opt --try-experimental-debuginfo-iterators %s -S -passes=memcpyopt -o - | FileCheck %s
;; $ cat test.cpp
;; struct v {
;; float c[4];
;;
;; v(float d) {
;; c[0] = c[1] = c[2] = d;
;; c[3] = 0.f;
;; }
;; };
;;
;; void esc(v*);
;;
;; v f() {
;; v g(0);
;; esc(&g);
;; }
;; IR grabbed before memcpyopt in:
;; clang++ -Xclang -fexperimental-assignment-tracking -g -c -O2 test.cpp
;; Check that the memset that memcpyopt creates to merge 4 stores merges the
;; DIASsignIDs from the stores.
; CHECK: #dbg_assign(float 0.000000e+00, ![[VAR:[0-9]+]], !DIExpression(DW_OP_LLVM_fragment, 64, 32), ![[ID:[0-9]+]], ptr %arrayidx.i, !DIExpression(),
; CHECK: #dbg_assign(float 0.000000e+00, ![[VAR]], !DIExpression(DW_OP_LLVM_fragment, 32, 32), ![[ID]], ptr %arrayidx3.i, !DIExpression(),
; CHECK: #dbg_assign(float 0.000000e+00, ![[VAR]], !DIExpression(DW_OP_LLVM_fragment, 0, 32), ![[ID]], ptr %arrayidx5.i, !DIExpression(),
; CHECK: #dbg_assign(float 0.000000e+00, ![[VAR]], !DIExpression(DW_OP_LLVM_fragment, 96, 32), ![[ID]], ptr %arrayidx7.i, !DIExpression(),
; CHECK: call void @llvm.memset{{.*}}, !DIAssignID ![[ID]]
%struct.v = type { [4 x float] }
$_ZN1vC2Ef = comdat any
; Function Attrs: uwtable
define dso_local void @_Z1fv() local_unnamed_addr #0 !dbg !7 {
entry:
%g = alloca %struct.v, align 4, !DIAssignID !23
call void @llvm.dbg.assign(metadata i1 undef, metadata !11, metadata !DIExpression(), metadata !23, metadata ptr %g, metadata !DIExpression()), !dbg !24
call void @llvm.lifetime.start.p0(i64 16, ptr nonnull %g) #5, !dbg !25
call void @llvm.dbg.assign(metadata i1 undef, metadata !26, metadata !DIExpression(), metadata !31, metadata ptr undef, metadata !DIExpression()), !dbg !32
call void @llvm.dbg.assign(metadata i1 undef, metadata !29, metadata !DIExpression(), metadata !34, metadata ptr undef, metadata !DIExpression()), !dbg !32
call void @llvm.dbg.assign(metadata ptr %g, metadata !26, metadata !DIExpression(), metadata !35, metadata ptr undef, metadata !DIExpression()), !dbg !32
call void @llvm.dbg.assign(metadata float 0.000000e+00, metadata !29, metadata !DIExpression(), metadata !36, metadata ptr undef, metadata !DIExpression()), !dbg !32
%arrayidx.i = getelementptr inbounds %struct.v, ptr %g, i64 0, i32 0, i64 2, !dbg !37
store float 0.000000e+00, ptr %arrayidx.i, align 4, !dbg !39, !DIAssignID !44
call void @llvm.dbg.assign(metadata float 0.000000e+00, metadata !11, metadata !DIExpression(DW_OP_LLVM_fragment, 64, 32), metadata !44, metadata ptr %arrayidx.i, metadata !DIExpression()), !dbg !24
%arrayidx3.i = getelementptr inbounds %struct.v, ptr %g, i64 0, i32 0, i64 1, !dbg !45
store float 0.000000e+00, ptr %arrayidx3.i, align 4, !dbg !46, !DIAssignID !47
call void @llvm.dbg.assign(metadata float 0.000000e+00, metadata !11, metadata !DIExpression(DW_OP_LLVM_fragment, 32, 32), metadata !47, metadata ptr %arrayidx3.i, metadata !DIExpression()), !dbg !24
%arrayidx5.i = getelementptr inbounds %struct.v, ptr %g, i64 0, i32 0, i64 0, !dbg !48
store float 0.000000e+00, ptr %arrayidx5.i, align 4, !dbg !49, !DIAssignID !50
call void @llvm.dbg.assign(metadata float 0.000000e+00, metadata !11, metadata !DIExpression(DW_OP_LLVM_fragment, 0, 32), metadata !50, metadata ptr %arrayidx5.i, metadata !DIExpression()), !dbg !24
%arrayidx7.i = getelementptr inbounds %struct.v, ptr %g, i64 0, i32 0, i64 3, !dbg !51
store float 0.000000e+00, ptr %arrayidx7.i, align 4, !dbg !52, !DIAssignID !53
call void @llvm.dbg.assign(metadata float 0.000000e+00, metadata !11, metadata !DIExpression(DW_OP_LLVM_fragment, 96, 32), metadata !53, metadata ptr %arrayidx7.i, metadata !DIExpression()), !dbg !24
call void @_Z3escP1v(ptr nonnull %g), !dbg !54
call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %g) #5, !dbg !55
ret void, !dbg !55
}
; Function Attrs: argmemonly nofree nosync nounwind willreturn
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1
; Function Attrs: nounwind uwtable
define linkonce_odr dso_local void @_ZN1vC2Ef(ptr %this, float %d) unnamed_addr #2 comdat align 2 !dbg !27 {
entry:
call void @llvm.dbg.assign(metadata i1 undef, metadata !26, metadata !DIExpression(), metadata !56, metadata ptr undef, metadata !DIExpression()), !dbg !57
call void @llvm.dbg.assign(metadata i1 undef, metadata !29, metadata !DIExpression(), metadata !58, metadata ptr undef, metadata !DIExpression()), !dbg !57
call void @llvm.dbg.assign(metadata ptr %this, metadata !26, metadata !DIExpression(), metadata !59, metadata ptr undef, metadata !DIExpression()), !dbg !57
call void @llvm.dbg.assign(metadata float %d, metadata !29, metadata !DIExpression(), metadata !60, metadata ptr undef, metadata !DIExpression()), !dbg !57
%arrayidx = getelementptr inbounds %struct.v, ptr %this, i64 0, i32 0, i64 2, !dbg !61
store float %d, ptr %arrayidx, align 4, !dbg !62
%arrayidx3 = getelementptr inbounds %struct.v, ptr %this, i64 0, i32 0, i64 1, !dbg !63
store float %d, ptr %arrayidx3, align 4, !dbg !64
%arrayidx5 = getelementptr inbounds %struct.v, ptr %this, i64 0, i32 0, i64 0, !dbg !65
store float %d, ptr %arrayidx5, align 4, !dbg !66
%arrayidx7 = getelementptr inbounds %struct.v, ptr %this, i64 0, i32 0, i64 3, !dbg !67
store float 0.000000e+00, ptr %arrayidx7, align 4, !dbg !68
ret void, !dbg !69
}
declare !dbg !70 dso_local void @_Z3escP1v(ptr) local_unnamed_addr
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture)
declare void @llvm.dbg.assign(metadata, metadata, metadata, metadata, metadata, metadata)
!llvm.dbg.cu = !{!0}
!llvm.module.flags = !{!3, !4, !5, !1000}
!llvm.ident = !{!6}
!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, producer: "clang version 12.0.0", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, splitDebugInlining: false, nameTableKind: None)
!1 = !DIFile(filename: "reduce.cpp", directory: "/")
!2 = !{}
!3 = !{i32 7, !"Dwarf Version", i32 4}
!4 = !{i32 2, !"Debug Info Version", i32 3}
!5 = !{i32 1, !"wchar_size", i32 4}
!6 = !{!"clang version 12.0.0"}
!7 = distinct !DISubprogram(name: "f", linkageName: "_Z1fv", scope: !1, file: !1, line: 12, type: !8, scopeLine: 12, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !10)
!8 = !DISubroutineType(types: !9)
!9 = !{null}
!10 = !{!11}
!11 = !DILocalVariable(name: "g", scope: !7, file: !1, line: 13, type: !12)
!12 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "v", file: !1, line: 1, size: 128, flags: DIFlagTypePassByValue | DIFlagNonTrivial, elements: !13, identifier: "_ZTS1v")
!13 = !{!14, !19}
!14 = !DIDerivedType(tag: DW_TAG_member, name: "c", scope: !12, file: !1, line: 2, baseType: !15, size: 128)
!15 = !DICompositeType(tag: DW_TAG_array_type, baseType: !16, size: 128, elements: !17)
!16 = !DIBasicType(name: "float", size: 32, encoding: DW_ATE_float)
!17 = !{!18}
!18 = !DISubrange(count: 4)
!19 = !DISubprogram(name: "v", scope: !12, file: !1, line: 4, type: !20, scopeLine: 4, flags: DIFlagPrototyped, spFlags: DISPFlagOptimized)
!20 = !DISubroutineType(types: !21)
!21 = !{null, !22, !16}
!22 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !12, size: 64, flags: DIFlagArtificial | DIFlagObjectPointer)
!23 = distinct !DIAssignID()
!24 = !DILocation(line: 0, scope: !7)
!25 = !DILocation(line: 13, column: 3, scope: !7)
!26 = !DILocalVariable(name: "this", arg: 1, scope: !27, type: !30, flags: DIFlagArtificial | DIFlagObjectPointer)
!27 = distinct !DISubprogram(name: "v", linkageName: "_ZN1vC2Ef", scope: !12, file: !1, line: 4, type: !20, scopeLine: 4, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, declaration: !19, retainedNodes: !28)
!28 = !{!26, !29}
!29 = !DILocalVariable(name: "d", arg: 2, scope: !27, file: !1, line: 4, type: !16)
!30 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !12, size: 64)
!31 = distinct !DIAssignID()
!32 = !DILocation(line: 0, scope: !27, inlinedAt: !33)
!33 = distinct !DILocation(line: 13, column: 5, scope: !7)
!34 = distinct !DIAssignID()
!35 = distinct !DIAssignID()
!36 = distinct !DIAssignID()
!37 = !DILocation(line: 5, column: 19, scope: !38, inlinedAt: !33)
!38 = distinct !DILexicalBlock(scope: !27, file: !1, line: 4, column: 14)
!39 = !DILocation(line: 5, column: 24, scope: !38, inlinedAt: !33)
!44 = distinct !DIAssignID()
!45 = !DILocation(line: 5, column: 12, scope: !38, inlinedAt: !33)
!46 = !DILocation(line: 5, column: 17, scope: !38, inlinedAt: !33)
!47 = distinct !DIAssignID()
!48 = !DILocation(line: 5, column: 5, scope: !38, inlinedAt: !33)
!49 = !DILocation(line: 5, column: 10, scope: !38, inlinedAt: !33)
!50 = distinct !DIAssignID()
!51 = !DILocation(line: 6, column: 5, scope: !38, inlinedAt: !33)
!52 = !DILocation(line: 6, column: 10, scope: !38, inlinedAt: !33)
!53 = distinct !DIAssignID()
!54 = !DILocation(line: 14, column: 3, scope: !7)
!55 = !DILocation(line: 15, column: 1, scope: !7)
!56 = distinct !DIAssignID()
!57 = !DILocation(line: 0, scope: !27)
!58 = distinct !DIAssignID()
!59 = distinct !DIAssignID()
!60 = distinct !DIAssignID()
!61 = !DILocation(line: 5, column: 19, scope: !38)
!62 = !DILocation(line: 5, column: 24, scope: !38)
!63 = !DILocation(line: 5, column: 12, scope: !38)
!64 = !DILocation(line: 5, column: 17, scope: !38)
!65 = !DILocation(line: 5, column: 5, scope: !38)
!66 = !DILocation(line: 5, column: 10, scope: !38)
!67 = !DILocation(line: 6, column: 5, scope: !38)
!68 = !DILocation(line: 6, column: 10, scope: !38)
!69 = !DILocation(line: 7, column: 3, scope: !27)
!70 = !DISubprogram(name: "esc", linkageName: "_Z3escP1v", scope: !1, file: !1, line: 10, type: !71, flags: DIFlagPrototyped, spFlags: DISPFlagOptimized, retainedNodes: !2)
!71 = !DISubroutineType(types: !72)
!72 = !{null, !30}
!1000 = !{i32 7, !"debug-info-assignment-tracking", i1 true}
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