100 lines
4.5 KiB
LLVM
100 lines
4.5 KiB
LLVM
; RUN: opt < %s -inline -S | FileCheck %s
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; This tests that functions with the attribute `no-inline-line-tables` have the
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; correct debug information when they are inlined.
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; ModuleID = 't.c'
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source_filename = "t.c"
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target datalayout = "e-m:w-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-unknown-windows-msvc"
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; Function Attrs: alwaysinline nounwind
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define dso_local i32 @f(i32 %x) #0 !dbg !7 {
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entry:
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%x.addr = alloca i32, align 4
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store i32 %x, i32* %x.addr, align 4
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call void @llvm.dbg.declare(metadata i32* %x.addr, metadata !12, metadata !DIExpression()), !dbg !13
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%0 = load i32, i32* %x.addr, align 4, !dbg !14
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ret i32 %0, !dbg !14
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}
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; Function Attrs: nounwind readnone speculatable willreturn
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declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
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; Function Attrs: alwaysinline nounwind
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define i32 @g(i32 %x) #0 !dbg !15 {
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entry:
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%x.addr = alloca i32, align 4
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store i32 %x, i32* %x.addr, align 4
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call void @llvm.dbg.declare(metadata i32* %x.addr, metadata !16, metadata !DIExpression()), !dbg !17
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br label %L, !dbg !17
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L: ; preds = %entry
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call void @llvm.dbg.label(metadata !18), !dbg !19
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store i32 42, i32* %x.addr, align 4, !dbg !20
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%0 = load i32, i32* %x.addr, align 4, !dbg !21
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ret i32 %0, !dbg !21
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}
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; Function Attrs: nounwind readnone speculatable willreturn
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declare void @llvm.dbg.label(metadata) #1
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; Check that debug info for inlined code uses the call location and that debug
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; intrinsics are removed.
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; Function Attrs: noinline nounwind optnone
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define i32 @main() #2 !dbg !22 {
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entry:
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; CHECK-LABEL: @main()
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; CHECK-NOT: @f
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; CHECK-NOT: @llvm.dbg.declare
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; CHECK: %{{[0-9]+}} = load i32, i32* %x.addr.i, align 4, !dbg ![[VAR1:[0-9]+]]
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%call = call i32 @f(i32 3), !dbg !25
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; Another test for inlining debug intrinsics where the intrinsic appears at the
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; start of the basic block.
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; CHECK-NOT: @g
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; CHECK-NOT: @llvm.dbg.label
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; CHECK: %{{[0-9]+}} = load i32, i32* %x.addr.i1, align 4, !dbg ![[VAR2:[0-9]+]]
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%call1 = call i32 @g(i32 340), !dbg !26
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ret i32 0, !dbg !27
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}
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; CHECK: ![[VAR1]] = !DILocation(line: 10, scope: ![[SCOPE:[0-9]+]])
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; CHECK: ![[VAR2]] = !DILocation(line: 11, scope: ![[SCOPE]])
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attributes #0 = { alwaysinline nounwind "no-inline-line-tables" }
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attributes #2 = { noinline nounwind optnone "no-inline-line-tables"}
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!3, !4, !5}
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!llvm.ident = !{!6}
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!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 10.0.0 (https://github.com/llvm/llvm-project.git 03ec3a12a94bbbaa11999b6da3a43221a5aa54a5)", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, nameTableKind: None)
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!1 = !DIFile(filename: "<stdin>", directory: "/usr/local/google/home/akhuang/testing/inline-line-tables", checksumkind: CSK_MD5, checksum: "38a4785b48742d3ea655b8f3461436a4")
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!2 = !{}
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!3 = !{i32 2, !"CodeView", i32 1}
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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 10.0.0 (https://github.com/llvm/llvm-project.git 03ec3a12a94bbbaa11999b6da3a43221a5aa54a5)"}
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!7 = distinct !DISubprogram(name: "f", scope: !8, file: !8, line: 1, type: !9, scopeLine: 1, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !2)
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!8 = !DIFile(filename: "t.c", directory: "/usr/local/google/home/akhuang/testing/inline-line-tables", checksumkind: CSK_MD5, checksum: "38a4785b48742d3ea655b8f3461436a4")
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!9 = !DISubroutineType(types: !10)
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!10 = !{!11, !11}
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!11 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
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!12 = !DILocalVariable(name: "x", arg: 1, scope: !7, file: !8, line: 1, type: !11)
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!13 = !DILocation(line: 1, scope: !7)
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!14 = !DILocation(line: 2, scope: !7)
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!15 = distinct !DISubprogram(name: "g", scope: !8, file: !8, line: 4, type: !9, scopeLine: 4, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !2)
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!16 = !DILocalVariable(name: "x", arg: 1, scope: !15, file: !8, line: 4, type: !11)
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!17 = !DILocation(line: 4, scope: !15)
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!18 = !DILabel(scope: !15, name: "L", file: !8, line: 5)
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!19 = !DILocation(line: 5, scope: !15)
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!20 = !DILocation(line: 6, scope: !15)
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!21 = !DILocation(line: 7, scope: !15)
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!22 = distinct !DISubprogram(name: "main", scope: !8, file: !8, line: 9, type: !23, scopeLine: 9, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !2)
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!23 = !DISubroutineType(types: !24)
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!24 = !{!11}
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!25 = !DILocation(line: 10, scope: !22)
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!26 = !DILocation(line: 11, scope: !22)
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!27 = !DILocation(line: 12, scope: !22)
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