792a6f8119
These date back to when the non-intrinsic format of variable locations was still being tested and was behind a compile-time flag, so not all builds / bots would correctly run them. The solution at the time, to get at least some test coverage, was to have tests opt-in to non-intrinsic debug-info if it was built into LLVM. Nowadays, non-intrinsic format is the default and has been on for more than a year, there's no need for this flag to exist. (I've downgraded the flag from "try" to explicitly requesting non-intrinsic format in some places, so that we can deal with tests that are explicitly about non-intrinsic format in their own commit).
110 lines
4.9 KiB
LLVM
110 lines
4.9 KiB
LLVM
; RUN: opt %s -S -passes=instcombine | FileCheck %s
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;; Check that instcombine merges the DIAssignID metadata when merging two
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;; stores into a successor. Filecheck directives inline.
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;;
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;; Generated from the following source:
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;; int c;
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;; void esc(int*);
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;; int get();
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;; void fun() {
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;; int local;
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;; if (c) {
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;; get();
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;; local = 2;
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;; } else {
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;; local = 2;
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;; }
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;; esc(&local);
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;; }
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; CHECK: if.then:
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; CHECK-NEXT: %call = call
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; CHECK-NEXT: #dbg_assign(i32 2, ![[LOCAL:[0-9]+]], !DIExpression(), ![[MERGED_ID:[0-9]+]], ptr %local, !DIExpression(),
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; CHECK: if.else:
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; CHECK-NEXT: #dbg_assign(i32 2, ![[LOCAL]], !DIExpression(), ![[MERGED_ID]], ptr %local, !DIExpression(),
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; CHECK: if.end:
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; CHECK-NEXT: store i32 2, ptr %local{{.*}}!DIAssignID ![[MERGED_ID]]
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; CHECK: ![[LOCAL]] = !DILocalVariable(name: "local",
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@c = dso_local local_unnamed_addr global i32 0, align 4, !dbg !0
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; Function Attrs: uwtable mustprogress
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define dso_local void @_Z3funv() local_unnamed_addr !dbg !11 {
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entry:
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%local = alloca i32, align 4
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%0 = bitcast ptr %local to ptr, !dbg !16
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call void @llvm.lifetime.start.p0(i64 4, ptr %0), !dbg !16
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%1 = load i32, ptr @c, align 4, !dbg !17
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%tobool = icmp ne i32 %1, 0, !dbg !17
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br i1 %tobool, label %if.then, label %if.else, !dbg !23
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if.then: ; preds = %entry
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%call = call i32 @_Z3getv(), !dbg !24
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store i32 2, ptr %local, align 4, !dbg !26, !DIAssignID !27
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call void @llvm.dbg.assign(metadata i32 2, metadata !15, metadata !DIExpression(), metadata !27, metadata ptr %local, metadata !DIExpression()), !dbg !26
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br label %if.end, !dbg !28
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if.else: ; preds = %entry
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store i32 2, ptr %local, align 4, !dbg !29, !DIAssignID !31
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call void @llvm.dbg.assign(metadata i32 2, metadata !15, metadata !DIExpression(), metadata !31, metadata ptr %local, metadata !DIExpression()), !dbg !29
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br label %if.end
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if.end: ; preds = %if.else, %if.then
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call void @_Z3escPi(ptr %local), !dbg !32
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call void @llvm.lifetime.end.p0(i64 4, ptr %0), !dbg !33
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ret void, !dbg !33
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}
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declare !dbg !34 dso_local i32 @_Z3getv() local_unnamed_addr
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declare !dbg !37 dso_local void @_Z3escPi(ptr) local_unnamed_addr
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declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture)
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declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture)
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declare void @llvm.dbg.assign(metadata, metadata, metadata, metadata, metadata, metadata)
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!llvm.dbg.cu = !{!2}
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!llvm.module.flags = !{!7, !8, !9, !1000}
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!llvm.ident = !{!10}
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!0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression())
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!1 = distinct !DIGlobalVariable(name: "c", scope: !2, file: !3, line: 1, type: !6, isLocal: false, isDefinition: true)
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!2 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus_14, file: !3, producer: "clang version 12.0.0", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !4, globals: !5, splitDebugInlining: false, nameTableKind: None)
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!3 = !DIFile(filename: "test.cpp", directory: "/")
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!4 = !{}
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!5 = !{!0}
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!6 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
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!7 = !{i32 7, !"Dwarf Version", i32 4}
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!8 = !{i32 2, !"Debug Info Version", i32 3}
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!9 = !{i32 1, !"wchar_size", i32 4}
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!10 = !{!"clang version 12.0.0"}
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!11 = distinct !DISubprogram(name: "fun", linkageName: "_Z3funv", scope: !3, file: !3, line: 4, type: !12, scopeLine: 4, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !2, retainedNodes: !14)
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!12 = !DISubroutineType(types: !13)
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!13 = !{null}
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!14 = !{!15}
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!15 = !DILocalVariable(name: "local", scope: !11, file: !3, line: 5, type: !6)
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!16 = !DILocation(line: 5, column: 3, scope: !11)
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!17 = !DILocation(line: 6, column: 7, scope: !18)
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!18 = distinct !DILexicalBlock(scope: !11, file: !3, line: 6, column: 7)
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!23 = !DILocation(line: 6, column: 7, scope: !11)
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!24 = !DILocation(line: 7, column: 5, scope: !25)
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!25 = distinct !DILexicalBlock(scope: !18, file: !3, line: 6, column: 10)
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!26 = !DILocation(line: 8, column: 11, scope: !25)
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!27 = distinct !DIAssignID()
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!28 = !DILocation(line: 9, column: 3, scope: !25)
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!29 = !DILocation(line: 10, column: 11, scope: !30)
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!30 = distinct !DILexicalBlock(scope: !18, file: !3, line: 9, column: 10)
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!31 = distinct !DIAssignID()
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!32 = !DILocation(line: 12, column: 3, scope: !11)
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!33 = !DILocation(line: 13, column: 1, scope: !11)
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!34 = !DISubprogram(name: "get", linkageName: "_Z3getv", scope: !3, file: !3, line: 3, type: !35, flags: DIFlagPrototyped, spFlags: DISPFlagOptimized, retainedNodes: !4)
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!35 = !DISubroutineType(types: !36)
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!36 = !{!6}
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!37 = !DISubprogram(name: "esc", linkageName: "_Z3escPi", scope: !3, file: !3, line: 2, type: !38, flags: DIFlagPrototyped, spFlags: DISPFlagOptimized, retainedNodes: !4)
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!38 = !DISubroutineType(types: !39)
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!39 = !{null, !40}
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!40 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !6, size: 64)
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!1000 = !{i32 7, !"debug-info-assignment-tracking", i1 true}
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