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).
76 lines
4.6 KiB
LLVM
76 lines
4.6 KiB
LLVM
; RUN: opt %s -S -o - -passes=instcombine \
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; RUN: | FileCheck %s --implicit-check-not="call void @llvm.dbg"
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; RUN: opt --try-experimental-debuginfo-iterators %s -S -o - -passes=instcombine \
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; RUN: | FileCheck %s --implicit-check-not="call void @llvm.dbg"
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;; Hand-written (the debug info doesn't necessarily make sense and isn't fully
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;; formed). Test salvaging a dbg.assign value and address. Checks and comments
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;; are inline.
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define dso_local void @fun(i32 %x, i32 %y, ptr %p) !dbg !7 {
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entry:
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%add = add nsw i32 %x, 1, !dbg !22
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call void @llvm.dbg.assign(metadata i32 %add, metadata !14, metadata !DIExpression(), metadata !28, metadata ptr %p, metadata !DIExpression()), !dbg !16
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;; %add is salvaged.
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; CHECK: call void @llvm.dbg.assign(metadata i32 %x,{{.+}}metadata !DIExpression(DW_OP_plus_uconst, 1, DW_OP_stack_value),{{.+}}, metadata ptr %p, metadata !DIExpression())
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%add1 = add nsw i32 %x, %y, !dbg !29
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call void @llvm.dbg.assign(metadata i32 %add1, metadata !32, metadata !DIExpression(), metadata !31, metadata ptr %p, metadata !DIExpression()), !dbg !16
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;; %add1 is salvaged using a variadic expression.
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; CHECK-NEXT: call void @llvm.dbg.assign(metadata !DIArgList(i32 %x, i32 %y), metadata ![[#]], metadata !DIExpression(DW_OP_LLVM_arg, 0, DW_OP_LLVM_arg, 1, DW_OP_plus, DW_OP_stack_value), metadata ![[#]], metadata ptr %p, metadata !DIExpression())
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%arrayidx0 = getelementptr inbounds i32, ptr %p, i32 0
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call void @llvm.dbg.assign(metadata i32 %x, metadata !14, metadata !DIExpression(), metadata !17, metadata ptr %arrayidx0, metadata !DIExpression()), !dbg !16
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;; %arrayidx0 is salvaged (zero offset, so the gep is just replaced with %p).
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; CHECK-NEXT: call void @llvm.dbg.assign(metadata i32 %x,{{.+}}, metadata !DIExpression(),{{.+}}, metadata ptr %p, metadata !DIExpression())
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%arrayidx1 = getelementptr inbounds i32, ptr %p, i32 1
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call void @llvm.dbg.assign(metadata i32 %x, metadata !33, metadata !DIExpression(), metadata !18, metadata ptr %arrayidx1, metadata !DIExpression()), !dbg !16
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;; %arrayidx1 is salvaged.
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; CHECK-NEXT: call void @llvm.dbg.assign(metadata i32 %x,{{.+}}, metadata !DIExpression(),{{.+}}, metadata ptr %p, metadata !DIExpression(DW_OP_plus_uconst, 4))
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%arrayidx2 = getelementptr inbounds i32, ptr %p, i32 %x
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call void @llvm.dbg.assign(metadata i32 %x, metadata !34, metadata !DIExpression(), metadata !19, metadata ptr %arrayidx2, metadata !DIExpression()), !dbg !16
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;; Variadic DIExpressions for dbg.assign address component is not supported -
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;; set undef.
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; CHECK-NEXT: call void @llvm.dbg.assign(metadata i32 %x,{{.+}}, metadata !DIExpression(),{{.+}}, metadata ptr undef, metadata !DIExpression())
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ret void
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}
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declare void @llvm.dbg.assign(metadata, metadata, metadata, metadata, metadata, metadata)
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!2, !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 14.0.0", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, splitDebugInlining: false, nameTableKind: None)
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!1 = !DIFile(filename: "test.cpp", directory: "/")
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!2 = !{i32 7, !"Dwarf Version", i32 5}
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!3 = !{i32 2, !"Debug Info Version", i32 3}
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!4 = !{i32 1, !"wchar_size", i32 4}
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!5 = !{i32 7, !"uwtable", i32 1}
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!6 = !{!"clang version 14.0.0"}
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!7 = distinct !DISubprogram(name: "fun", linkageName: "fun", 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 = !{null, !10, !10}
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!10 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
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!11 = !{!12, !13, !14}
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!12 = !DILocalVariable(name: "x", arg: 1, scope: !7, file: !1, line: 2, type: !10)
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!13 = !DILocalVariable(name: "y", arg: 2, scope: !7, file: !1, line: 2, type: !10)
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!14 = !DILocalVariable(name: "Local", scope: !7, file: !1, line: 3, type: !10)
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!16 = !DILocation(line: 0, scope: !7)
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!17 = distinct !DIAssignID()
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!18 = distinct !DIAssignID()
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!19 = distinct !DIAssignID()
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!21 = !DILocation(line: 3, column: 3, scope: !7)
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!22 = !DILocation(line: 3, column: 17, scope: !7)
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!28 = distinct !DIAssignID()
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!29 = !DILocation(line: 4, column: 13, scope: !7)
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!31 = distinct !DIAssignID()
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!32 = !DILocalVariable(name: "Local1", scope: !7, file: !1, line: 3, type: !10)
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!33 = !DILocalVariable(name: "Local2", scope: !7, file: !1, line: 3, type: !10)
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!34 = !DILocalVariable(name: "Local3", scope: !7, file: !1, line: 3, type: !10)
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!35 = !DILocalVariable(name: "Local4", scope: !7, file: !1, line: 3, type: !10)
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!1000 = !{i32 7, !"debug-info-assignment-tracking", i1 true}
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