Files
clang-p2996/llvm/test/DebugInfo/Generic/assignment-tracking/inline/inline-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

344 lines
17 KiB
LLVM

; RUN: opt -passes=inline %s -S -o - \
; RUN: | FileCheck %s
; RUN: opt --try-experimental-debuginfo-iterators -passes=inline %s -S -o - \
; RUN: | FileCheck %s
;; $ cat test.cpp
;; __attribute__((always_inline))
;; static void a(int* p2, int v2) { *p2 = v2; }
;;
;; __attribute__((always_inline))
;; void b(int* p1, int v1) { a(p1, v1); }
;;
;; int f1() {
;; int f1_local;
;; a(&f1_local, 1);
;; return f1_local;
;; }
;;
;; int f2() {
;; int f2_local[2];
;; a(f2_local, 2);
;; return f2_local[0];
;; }
;;
;; int f3() {
;; int f3_local[2];
;; a(f3_local + 1, 3);
;; return f3_local[1];
;; }
;;
;; int f4(int f4_param) {
;; a(&f4_param, 4);
;; return f4_param;
;; }
;;
;; int f5(int f5_param) {
;; int &f5_alias = f5_param;
;; a(&f5_alias, 5);
;; return f5_param;
;; }
;;
;; int f6() {
;; int f6_local;
;; b(&f6_local, 6);
;; return f6_local;
;; }
;;
;; IR generated with:
;; $ clang++ -Xclang -disable-llvm-passes test.cpp -g -O2 -o - -S -emit-llvm \
;; | opt -passes=declare-to-assign,sroa -o - -S
;;
;; Check that inlined stores are tracked as assignments. FileCheck directives
;; inline.
source_filename = "test.cpp"
define dso_local void @_Z1bPii(ptr %p1, i32 %v1) #0 !dbg !7 {
entry:
call void @llvm.dbg.assign(metadata i1 undef, metadata !13, metadata !DIExpression(), metadata !15, metadata ptr undef, metadata !DIExpression()), !dbg !16
call void @llvm.dbg.assign(metadata i1 undef, metadata !14, metadata !DIExpression(), metadata !17, metadata ptr undef, metadata !DIExpression()), !dbg !16
call void @llvm.dbg.assign(metadata ptr %p1, metadata !13, metadata !DIExpression(), metadata !18, metadata ptr undef, metadata !DIExpression()), !dbg !16
call void @llvm.dbg.assign(metadata i32 %v1, metadata !14, metadata !DIExpression(), metadata !19, metadata ptr undef, metadata !DIExpression()), !dbg !16
call void @_ZL1aPii(ptr %p1, i32 %v1), !dbg !20
ret void, !dbg !21
}
define internal void @_ZL1aPii(ptr %p2, i32 %v2) #2 !dbg !22 {
entry:
call void @llvm.dbg.assign(metadata i1 undef, metadata !24, metadata !DIExpression(), metadata !26, metadata ptr undef, metadata !DIExpression()), !dbg !27
call void @llvm.dbg.assign(metadata i1 undef, metadata !25, metadata !DIExpression(), metadata !28, metadata ptr undef, metadata !DIExpression()), !dbg !27
call void @llvm.dbg.assign(metadata ptr %p2, metadata !24, metadata !DIExpression(), metadata !29, metadata ptr undef, metadata !DIExpression()), !dbg !27
call void @llvm.dbg.assign(metadata i32 %v2, metadata !25, metadata !DIExpression(), metadata !30, metadata ptr undef, metadata !DIExpression()), !dbg !27
store i32 %v2, ptr %p2, align 4, !dbg !31
ret void, !dbg !36
}
;; Store directly to local with one level of inlining. Also record f1_dbg to
;; check that the dbg.assign gets the correct scope after inlining. This check
;; isn't repeated for the other functions.
;; int f1() {
;; int f1_local;
;; a(&f1_local, 1);
;; return f1_local;
;; }
;;
; CHECK-LABEL: define dso_local i32 @_Z2f1v()
; CHECK: store i32 1, ptr %f1_local, align 4,{{.*}} !DIAssignID ![[ID_1:[0-9]+]]
; CHECK-NEXT: #dbg_assign(i32 1, ![[f1_local:[0-9]+]], !DIExpression(), ![[ID_1]], ptr %f1_local, !DIExpression(), ![[f1_dbg:[0-9]+]]
define dso_local i32 @_Z2f1v() #3 !dbg !37 {
entry:
%f1_local = alloca i32, align 4, !DIAssignID !42
call void @llvm.dbg.assign(metadata i1 undef, metadata !41, metadata !DIExpression(), metadata !42, metadata ptr %f1_local, metadata !DIExpression()), !dbg !43
%0 = bitcast ptr %f1_local to ptr, !dbg !44
call void @llvm.lifetime.start.p0(i64 4, ptr %0) #5, !dbg !44
call void @_ZL1aPii(ptr %f1_local, i32 1), !dbg !45
%1 = load i32, ptr %f1_local, align 4, !dbg !46
%2 = bitcast ptr %f1_local to ptr, !dbg !47
call void @llvm.lifetime.end.p0(i64 4, ptr %2) #5, !dbg !47
ret i32 %1, !dbg !48
}
;; Store directly to fragment of local at its base address.
;; int f2() {
;; int f2_local[2];
;; a(f2_local, 2);
;; return f2_local[0];
;; }
;;
; CHECK-LABEL: define dso_local i32 @_Z2f2v()
; CHECK: store i32 2, ptr %arraydecay, align 4,{{.*}} !DIAssignID ![[ID_2:[0-9]+]]
; CHECK-NEXT: #dbg_assign(i32 2, ![[f2_local:[0-9]+]], !DIExpression(DW_OP_LLVM_fragment, 0, 32), ![[ID_2]], ptr %arraydecay, !DIExpression(),
define dso_local i32 @_Z2f2v() #3 !dbg !49 {
entry:
%f2_local = alloca [2 x i32], align 4, !DIAssignID !55
call void @llvm.dbg.assign(metadata i1 undef, metadata !51, metadata !DIExpression(), metadata !55, metadata ptr %f2_local, metadata !DIExpression()), !dbg !56
%0 = bitcast ptr %f2_local to ptr, !dbg !57
call void @llvm.lifetime.start.p0(i64 8, ptr %0) #5, !dbg !57
%arraydecay = getelementptr inbounds [2 x i32], ptr %f2_local, i64 0, i64 0, !dbg !58
call void @_ZL1aPii(ptr %arraydecay, i32 2), !dbg !59
%arrayidx = getelementptr inbounds [2 x i32], ptr %f2_local, i64 0, i64 0, !dbg !60
%1 = load i32, ptr %arrayidx, align 4, !dbg !60
%2 = bitcast ptr %f2_local to ptr, !dbg !61
call void @llvm.lifetime.end.p0(i64 8, ptr %2) #5, !dbg !61
ret i32 %1, !dbg !62
}
;; Store to fragment of local using rvalue offset as argument.
;; int f3() {
;; int f3_local[2];
;; a(f3_local + 1, 3);
;; return f3_local[1];
;; }
; CHECK-LABEL: define dso_local i32 @_Z2f3v()
; CHECK: store i32 3, ptr %add.ptr, align 4,{{.*}} !DIAssignID ![[ID_3:[0-9]+]]
; CHECK-NEXT: #dbg_assign(i32 3, ![[f3_local:[0-9]+]], !DIExpression(DW_OP_LLVM_fragment, 32, 32), ![[ID_3]], ptr %add.ptr, !DIExpression(),
define dso_local i32 @_Z2f3v() #3 !dbg !63 {
entry:
%f3_local = alloca [2 x i32], align 4, !DIAssignID !66
call void @llvm.dbg.assign(metadata i1 undef, metadata !65, metadata !DIExpression(), metadata !66, metadata ptr %f3_local, metadata !DIExpression()), !dbg !67
%0 = bitcast ptr %f3_local to ptr, !dbg !68
call void @llvm.lifetime.start.p0(i64 8, ptr %0) #5, !dbg !68
%arraydecay = getelementptr inbounds [2 x i32], ptr %f3_local, i64 0, i64 0, !dbg !69
%add.ptr = getelementptr inbounds i32, ptr %arraydecay, i64 1, !dbg !70
call void @_ZL1aPii(ptr %add.ptr, i32 3), !dbg !71
%arrayidx = getelementptr inbounds [2 x i32], ptr %f3_local, i64 0, i64 1, !dbg !72
%1 = load i32, ptr %arrayidx, align 4, !dbg !72
%2 = bitcast ptr %f3_local to ptr, !dbg !73
call void @llvm.lifetime.end.p0(i64 8, ptr %2) #5, !dbg !73
ret i32 %1, !dbg !74
}
;; Store to parameter directly.
;; int f4(int f4_param) {
;; a(&f4_param, 4);
;; return f4_param;
;; }
; CHECK-LABEL: define dso_local i32 @_Z2f4i(i32 %f4_param)
; CHECK: store i32 4, ptr %f4_param.addr, align 4,{{.*}} !DIAssignID ![[ID_4:[0-9]+]]
; CHECK-NEXT: #dbg_assign(i32 4, ![[f4_param:[0-9]+]], !DIExpression(), ![[ID_4]], ptr %f4_param.addr, !DIExpression(),
define dso_local i32 @_Z2f4i(i32 %f4_param) #3 !dbg !75 {
entry:
%f4_param.addr = alloca i32, align 4, !DIAssignID !80
call void @llvm.dbg.assign(metadata i1 undef, metadata !79, metadata !DIExpression(), metadata !80, metadata ptr %f4_param.addr, metadata !DIExpression()), !dbg !81
store i32 %f4_param, ptr %f4_param.addr, align 4, !DIAssignID !82
call void @llvm.dbg.assign(metadata i32 %f4_param, metadata !79, metadata !DIExpression(), metadata !82, metadata ptr %f4_param.addr, metadata !DIExpression()), !dbg !81
call void @_ZL1aPii(ptr %f4_param.addr, i32 4), !dbg !83
%0 = load i32, ptr %f4_param.addr, align 4, !dbg !84
ret i32 %0, !dbg !85
}
;; Store through an alias.
;; int f5(int f5_param) {
;; int &f5_alias = f5_param;
;; a(&f5_alias, 5);
;; return f5_param;
;; }
; CHECK-LABEL: define dso_local i32 @_Z2f5i(i32 %f5_param)
; CHECK: store i32 5, ptr %f5_param.addr, align 4,{{.*}}!DIAssignID ![[ID_5:[0-9]+]]
; CHECK-NEXT: #dbg_assign(i32 5, ![[f5_param:[0-9]+]], !DIExpression(), ![[ID_5]], ptr %f5_param.addr, !DIExpression(),
define dso_local i32 @_Z2f5i(i32 %f5_param) #3 !dbg !86 {
entry:
%f5_param.addr = alloca i32, align 4, !DIAssignID !91
call void @llvm.dbg.assign(metadata i1 undef, metadata !88, metadata !DIExpression(), metadata !91, metadata ptr %f5_param.addr, metadata !DIExpression()), !dbg !92
call void @llvm.dbg.assign(metadata i1 undef, metadata !89, metadata !DIExpression(), metadata !93, metadata ptr undef, metadata !DIExpression()), !dbg !92
store i32 %f5_param, ptr %f5_param.addr, align 4, !DIAssignID !94
call void @llvm.dbg.assign(metadata i32 %f5_param, metadata !88, metadata !DIExpression(), metadata !94, metadata ptr %f5_param.addr, metadata !DIExpression()), !dbg !92
call void @llvm.dbg.assign(metadata ptr %f5_param.addr, metadata !89, metadata !DIExpression(), metadata !95, metadata ptr undef, metadata !DIExpression()), !dbg !92
call void @_ZL1aPii(ptr %f5_param.addr, i32 5), !dbg !96
%0 = load i32, ptr %f5_param.addr, align 4, !dbg !97
ret i32 %0, !dbg !98
}
;; int f6() {
;; int f6_local;
;; b(&f6_local, 6);
;; return f6_local;
;; }
; CHECK-LABEL: define dso_local i32 @_Z2f6v()
; CHECK: store i32 6, ptr %f6_local, align 4,{{.*}} !DIAssignID ![[ID_6:[0-9]+]]
; CHECK-NEXT: #dbg_assign(i32 6, ![[f6_local:[0-9]+]], !DIExpression(), ![[ID_6]], ptr %f6_local, !DIExpression(),
define dso_local i32 @_Z2f6v() #3 !dbg !99 {
entry:
%f6_local = alloca i32, align 4, !DIAssignID !102
call void @llvm.dbg.assign(metadata i1 undef, metadata !101, metadata !DIExpression(), metadata !102, metadata ptr %f6_local, metadata !DIExpression()), !dbg !103
%0 = bitcast ptr %f6_local to ptr, !dbg !104
call void @llvm.lifetime.start.p0(i64 4, ptr %0) #5, !dbg !104
call void @_Z1bPii(ptr %f6_local, i32 6), !dbg !105
%1 = load i32, ptr %f6_local, align 4, !dbg !106
%2 = bitcast ptr %f6_local to ptr, !dbg !107
call void @llvm.lifetime.end.p0(i64 4, ptr %2) #5, !dbg !107
ret i32 %1, !dbg !108
}
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture)
declare void @llvm.dbg.assign(metadata, metadata, metadata, metadata, metadata, metadata)
; CHECK-DAG: ![[f1_local]] = !DILocalVariable(name: "f1_local",
; CHECK-DAG: ![[f2_local]] = !DILocalVariable(name: "f2_local",
; CHECK-DAG: ![[f3_local]] = !DILocalVariable(name: "f3_local",
; CHECK-DAG: ![[f4_param]] = !DILocalVariable(name: "f4_param",
; CHECK-DAG: ![[f5_param]] = !DILocalVariable(name: "f5_param",
; CHECK-DAG: ![[f6_local]] = !DILocalVariable(name: "f6_local",
; CHECK-DAG: ![[f1_dbg]] = !DILocation(line: 0, scope: ![[f1_scope:[0-9]+]])
; CHECK-DAG: ![[f1_scope]] = distinct !DISubprogram(name: "f1",
; CHECK-DAG: [[ID_1]] = distinct !DIAssignID()
; CHECK-DAG: [[ID_2]] = distinct !DIAssignID()
; CHECK-DAG: [[ID_3]] = distinct !DIAssignID()
; CHECK-DAG: [[ID_4]] = distinct !DIAssignID()
; CHECK-DAG: [[ID_5]] = distinct !DIAssignID()
; CHECK-DAG: [[ID_6]] = distinct !DIAssignID()
!llvm.dbg.cu = !{!0}
!llvm.module.flags = !{!3, !4, !5, !1000}
!llvm.ident = !{!6}
!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus_14, file: !1, producer: "clang version 12.0.0", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, splitDebugInlining: false, nameTableKind: None)
!1 = !DIFile(filename: "test.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: "b", linkageName: "_Z1bPii", scope: !1, file: !1, line: 5, type: !8, scopeLine: 5, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !12)
!8 = !DISubroutineType(types: !9)
!9 = !{null, !10, !11}
!10 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !11, size: 64)
!11 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
!12 = !{!13, !14}
!13 = !DILocalVariable(name: "p1", arg: 1, scope: !7, file: !1, line: 5, type: !10)
!14 = !DILocalVariable(name: "v1", arg: 2, scope: !7, file: !1, line: 5, type: !11)
!15 = distinct !DIAssignID()
!16 = !DILocation(line: 0, scope: !7)
!17 = distinct !DIAssignID()
!18 = distinct !DIAssignID()
!19 = distinct !DIAssignID()
!20 = !DILocation(line: 5, column: 27, scope: !7)
!21 = !DILocation(line: 5, column: 38, scope: !7)
!22 = distinct !DISubprogram(name: "a", linkageName: "_ZL1aPii", scope: !1, file: !1, line: 2, type: !8, scopeLine: 2, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagLocalToUnit | DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !23)
!23 = !{!24, !25}
!24 = !DILocalVariable(name: "p2", arg: 1, scope: !22, file: !1, line: 2, type: !10)
!25 = !DILocalVariable(name: "v2", arg: 2, scope: !22, file: !1, line: 2, type: !11)
!26 = distinct !DIAssignID()
!27 = !DILocation(line: 0, scope: !22)
!28 = distinct !DIAssignID()
!29 = distinct !DIAssignID()
!30 = distinct !DIAssignID()
!31 = !DILocation(line: 2, column: 38, scope: !22)
!36 = !DILocation(line: 2, column: 44, scope: !22)
!37 = distinct !DISubprogram(name: "f1", linkageName: "_Z2f1v", scope: !1, file: !1, line: 7, type: !38, scopeLine: 7, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !40)
!38 = !DISubroutineType(types: !39)
!39 = !{!11}
!40 = !{!41}
!41 = !DILocalVariable(name: "f1_local", scope: !37, file: !1, line: 8, type: !11)
!42 = distinct !DIAssignID()
!43 = !DILocation(line: 0, scope: !37)
!44 = !DILocation(line: 8, column: 3, scope: !37)
!45 = !DILocation(line: 9, column: 3, scope: !37)
!46 = !DILocation(line: 10, column: 10, scope: !37)
!47 = !DILocation(line: 11, column: 1, scope: !37)
!48 = !DILocation(line: 10, column: 3, scope: !37)
!49 = distinct !DISubprogram(name: "f2", linkageName: "_Z2f2v", scope: !1, file: !1, line: 13, type: !38, scopeLine: 13, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !50)
!50 = !{!51}
!51 = !DILocalVariable(name: "f2_local", scope: !49, file: !1, line: 14, type: !52)
!52 = !DICompositeType(tag: DW_TAG_array_type, baseType: !11, size: 64, elements: !53)
!53 = !{!54}
!54 = !DISubrange(count: 2)
!55 = distinct !DIAssignID()
!56 = !DILocation(line: 0, scope: !49)
!57 = !DILocation(line: 14, column: 3, scope: !49)
!58 = !DILocation(line: 15, column: 5, scope: !49)
!59 = !DILocation(line: 15, column: 3, scope: !49)
!60 = !DILocation(line: 16, column: 10, scope: !49)
!61 = !DILocation(line: 17, column: 1, scope: !49)
!62 = !DILocation(line: 16, column: 3, scope: !49)
!63 = distinct !DISubprogram(name: "f3", linkageName: "_Z2f3v", scope: !1, file: !1, line: 19, type: !38, scopeLine: 19, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !64)
!64 = !{!65}
!65 = !DILocalVariable(name: "f3_local", scope: !63, file: !1, line: 20, type: !52)
!66 = distinct !DIAssignID()
!67 = !DILocation(line: 0, scope: !63)
!68 = !DILocation(line: 20, column: 3, scope: !63)
!69 = !DILocation(line: 21, column: 5, scope: !63)
!70 = !DILocation(line: 21, column: 14, scope: !63)
!71 = !DILocation(line: 21, column: 3, scope: !63)
!72 = !DILocation(line: 22, column: 10, scope: !63)
!73 = !DILocation(line: 23, column: 1, scope: !63)
!74 = !DILocation(line: 22, column: 3, scope: !63)
!75 = distinct !DISubprogram(name: "f4", linkageName: "_Z2f4i", scope: !1, file: !1, line: 25, type: !76, scopeLine: 25, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !78)
!76 = !DISubroutineType(types: !77)
!77 = !{!11, !11}
!78 = !{!79}
!79 = !DILocalVariable(name: "f4_param", arg: 1, scope: !75, file: !1, line: 25, type: !11)
!80 = distinct !DIAssignID()
!81 = !DILocation(line: 0, scope: !75)
!82 = distinct !DIAssignID()
!83 = !DILocation(line: 26, column: 3, scope: !75)
!84 = !DILocation(line: 27, column: 10, scope: !75)
!85 = !DILocation(line: 27, column: 3, scope: !75)
!86 = distinct !DISubprogram(name: "f5", linkageName: "_Z2f5i", scope: !1, file: !1, line: 30, type: !76, scopeLine: 30, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !87)
!87 = !{!88, !89}
!88 = !DILocalVariable(name: "f5_param", arg: 1, scope: !86, file: !1, line: 30, type: !11)
!89 = !DILocalVariable(name: "f5_alias", scope: !86, file: !1, line: 31, type: !90)
!90 = !DIDerivedType(tag: DW_TAG_reference_type, baseType: !11, size: 64)
!91 = distinct !DIAssignID()
!92 = !DILocation(line: 0, scope: !86)
!93 = distinct !DIAssignID()
!94 = distinct !DIAssignID()
!95 = distinct !DIAssignID()
!96 = !DILocation(line: 32, column: 3, scope: !86)
!97 = !DILocation(line: 33, column: 10, scope: !86)
!98 = !DILocation(line: 33, column: 3, scope: !86)
!99 = distinct !DISubprogram(name: "f6", linkageName: "_Z2f6v", scope: !1, file: !1, line: 36, type: !38, scopeLine: 36, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !100)
!100 = !{!101}
!101 = !DILocalVariable(name: "f6_local", scope: !99, file: !1, line: 37, type: !11)
!102 = distinct !DIAssignID()
!103 = !DILocation(line: 0, scope: !99)
!104 = !DILocation(line: 37, column: 3, scope: !99)
!105 = !DILocation(line: 38, column: 3, scope: !99)
!106 = !DILocation(line: 39, column: 10, scope: !99)
!107 = !DILocation(line: 40, column: 1, scope: !99)
!108 = !DILocation(line: 39, column: 3, scope: !99)
!1000 = !{i32 7, !"debug-info-assignment-tracking", i1 true}