632f44e5ed
This patch trivially updates various opt passes to handle DPVAssigns. In all cases, this means some combination of generifying existing code to handle DPValues and DbgAssignIntrinsics, iterating over DPValues where previously we did not, or duplicating code for DbgAssignIntrinsics to the equivalent DPValue function (in inlining and salvageDebugInfo).
89 lines
4.3 KiB
LLVM
89 lines
4.3 KiB
LLVM
; RUN: opt %s -S -passes=inline -o - | FileCheck %s
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; RUN: opt --try-experimental-debuginfo-iterators %s -S -passes=inline -o - | FileCheck %s
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;; Check that all DIAssignID metadata that are inlined are replaced with new
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;; versions. Otherwise two inlined instances of an assignment will be considered
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;; to be the same assignment.
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;;
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;; $cat test.cpp
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;; __attribute__((always_inline))
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;; int get() { int val = 5; return val; }
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;; void fun() {
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;; get();
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;; get();
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;; }
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; CHECK-LABEL: _Z3funv
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;
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; CHECK: store i32 5, ptr %val.i, align 4{{.*}}, !DIAssignID [[ID_0:![0-9]+]]
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; CHECK-NEXT: call void @llvm.dbg.assign(metadata i32 5, metadata [[val:![0-9]+]], metadata !DIExpression(), metadata [[ID_0]], metadata ptr %val.i, metadata !DIExpression()), !dbg [[dl_inline_0:![0-9]+]]
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;
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; CHECK: store i32 5, ptr %val.i1, align 4{{.*}}, !DIAssignID [[ID_1:![0-9]+]]
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; CHECK-NEXT: call void @llvm.dbg.assign(metadata i32 5, metadata [[val]], metadata !DIExpression(), metadata [[ID_1]], metadata ptr %val.i1, metadata !DIExpression()), !dbg [[dl_inline_1:![0-9]+]]
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;
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; CHECK-DAG: [[val]] = !DILocalVariable(name: "val",
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; CHECK-DAG: [[dl_inline_0]] = !DILocation({{.*}}inlinedAt
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; CHECK-DAG: [[dl_inline_1]] = !DILocation({{.*}}inlinedAt
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; CHECK-DAG: [[ID_0]] = distinct !DIAssignID()
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; CHECK-DAG: [[ID_1]] = distinct !DIAssignID()
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define dso_local i32 @_Z3getv() !dbg !7 {
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entry:
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%val = alloca i32, align 4, !DIAssignID !13
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call void @llvm.dbg.assign(metadata i1 undef, metadata !12, metadata !DIExpression(), metadata !13, metadata ptr %val, metadata !DIExpression()), !dbg !14
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%0 = bitcast ptr %val to ptr, !dbg !15
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call void @llvm.lifetime.start.p0i8(i64 4, ptr %0), !dbg !15
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store i32 5, ptr %val, align 4, !dbg !16, !DIAssignID !21
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call void @llvm.dbg.assign(metadata i32 5, metadata !12, metadata !DIExpression(), metadata !21, metadata ptr %val, metadata !DIExpression()), !dbg !14
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%1 = load i32, ptr %val, align 4, !dbg !22
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%2 = bitcast ptr %val to ptr, !dbg !23
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call void @llvm.lifetime.end.p0i8(i64 4, ptr %2), !dbg !23
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ret i32 %1, !dbg !24
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}
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declare void @llvm.lifetime.start.p0i8(i64 immarg, ptr nocapture)
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declare void @llvm.dbg.declare(metadata, metadata, metadata)
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declare void @llvm.lifetime.end.p0i8(i64 immarg, ptr nocapture)
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declare void @llvm.dbg.assign(metadata, metadata, metadata, metadata, metadata, metadata)
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; Function Attrs: nounwind uwtable mustprogress
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define dso_local void @_Z3funv() !dbg !25 {
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entry:
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%call = call i32 @_Z3getv(), !dbg !28
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%call1 = call i32 @_Z3getv(), !dbg !29
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ret void, !dbg !30
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}
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!3, !4, !5, !1000}
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!llvm.ident = !{!6}
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!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)
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!1 = !DIFile(filename: "test.cpp", directory: "")
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!2 = !{}
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!3 = !{i32 7, !"Dwarf Version", i32 4}
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!4 = !{i32 2, !"Debug Info Version", i32 3}
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!5 = !{i32 1, !"wchar_size", i32 4}
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!6 = !{!"clang version 12.0.0"}
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!7 = distinct !DISubprogram(name: "get", linkageName: "_Z3getv", scope: !1, file: !1, line: 2, type: !8, scopeLine: 2, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !11)
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!8 = !DISubroutineType(types: !9)
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!9 = !{!10}
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!10 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
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!11 = !{!12}
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!12 = !DILocalVariable(name: "val", scope: !7, file: !1, line: 2, type: !10)
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!13 = distinct !DIAssignID()
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!14 = !DILocation(line: 0, scope: !7)
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!15 = !DILocation(line: 2, column: 13, scope: !7)
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!16 = !DILocation(line: 2, column: 17, scope: !7)
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!21 = distinct !DIAssignID()
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!22 = !DILocation(line: 2, column: 33, scope: !7)
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!23 = !DILocation(line: 2, column: 38, scope: !7)
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!24 = !DILocation(line: 2, column: 26, scope: !7)
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!25 = distinct !DISubprogram(name: "fun", linkageName: "_Z3funv", scope: !1, file: !1, line: 3, type: !26, scopeLine: 3, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !2)
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!26 = !DISubroutineType(types: !27)
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!27 = !{null}
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!28 = !DILocation(line: 4, column: 3, scope: !25)
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!29 = !DILocation(line: 5, column: 3, scope: !25)
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!30 = !DILocation(line: 6, column: 1, scope: !25)
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!1000 = !{i32 7, !"debug-info-assignment-tracking", i1 true}
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