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https://github.com/RPCS3/llvm-mirror.git
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7d6813a6c8
This change simplifies code that has to deal with DIGlobalVariableExpression and mirrors how we treat DIExpressions in debug info intrinsics. Before this change there were two ways of representing empty expressions on globals, a nullptr and an empty !DIExpression(). If someone needs to upgrade out-of-tree testcases: perl -pi -e 's/(!DIGlobalVariableExpression\(var: ![0-9]*)\)/\1, expr: !DIExpression())/g' <MYTEST.ll> will catch 95%. llvm-svn: 312144
92 lines
4.1 KiB
LLVM
92 lines
4.1 KiB
LLVM
; RUN: llc -generate-arange-section < %s | FileCheck %s
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; CHECK: .short 2 # DWARF Arange version number
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; CHECK: # Segment Size
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; CHECK-NOT: debug_loc
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; CHECK: .quad global
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; CHECK-NOT: debug_loc
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; CHECK: # ARange terminator
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; --- Source code ---
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; Generated with "clang -g -O1 -S -emit-llvm"
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; int global = 2;
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; int foo(int bar) { return bar; }
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; int foo2(int bar2) { return bar2; }
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; int main() {
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; return foo(2) + foo2(1) + global;
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; }
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; ModuleID = 'tmp/debug_ranges/a.cc'
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source_filename = "test/DebugInfo/X86/dwarf-aranges-no-dwarf-labels.ll"
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target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
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target triple = "x86_64-unknown-linux-gnu"
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@global = global i32 2, align 4, !dbg !0
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; Function Attrs: nounwind readnone uwtable
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define i32 @_Z3fooi(i32 %bar) #0 !dbg !9 {
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entry:
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tail call void @llvm.dbg.value(metadata i32 %bar, metadata !13, metadata !14), !dbg !15
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ret i32 %bar, !dbg !15
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}
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; Function Attrs: nounwind readnone uwtable
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define i32 @_Z4foo2i(i32 %bar2) #0 !dbg !16 {
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entry:
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tail call void @llvm.dbg.value(metadata i32 %bar2, metadata !18, metadata !14), !dbg !19
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ret i32 %bar2, !dbg !19
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}
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; Function Attrs: nounwind readonly uwtable
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define i32 @main() #1 !dbg !20 {
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entry:
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%call = tail call i32 @_Z3fooi(i32 2), !dbg !23
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%call1 = tail call i32 @_Z4foo2i(i32 1), !dbg !23
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%add = add nsw i32 %call1, %call, !dbg !23
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%0 = load i32, i32* @global, align 4, !dbg !23, !tbaa !24
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%add2 = add nsw i32 %add, %0, !dbg !23
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ret i32 %add2, !dbg !23
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}
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; Function Attrs: nounwind readnone
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declare void @llvm.dbg.value(metadata, metadata, metadata) #2
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attributes #0 = { nounwind readnone uwtable "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
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attributes #1 = { nounwind readonly uwtable "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
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attributes #2 = { nounwind readnone }
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!llvm.dbg.cu = !{!4}
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!llvm.module.flags = !{!7, !8}
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!0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression())
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!1 = !DIGlobalVariable(name: "global", scope: null, file: !2, line: 1, type: !3, isLocal: false, isDefinition: true)
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!2 = !DIFile(filename: "tmp/debug_ranges/a.cc", directory: "/")
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!3 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
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!4 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !2, producer: "clang version 3.4 (191881)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !5, retainedTypes: !5, globals: !6, imports: !5)
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!5 = !{}
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!6 = !{!0}
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!7 = !{i32 2, !"Dwarf Version", i32 4}
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!8 = !{i32 1, !"Debug Info Version", i32 3}
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!9 = distinct !DISubprogram(name: "foo", linkageName: "_Z3fooi", scope: !2, file: !2, line: 2, type: !10, isLocal: false, isDefinition: true, scopeLine: 2, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !4, variables: !12)
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!10 = !DISubroutineType(types: !11)
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!11 = !{!3, !3}
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!12 = !{!13}
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!13 = !DILocalVariable(name: "bar", arg: 1, scope: !9, file: !2, line: 2, type: !3)
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!14 = !DIExpression()
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!15 = !DILocation(line: 2, scope: !9)
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!16 = distinct !DISubprogram(name: "foo2", linkageName: "_Z4foo2i", scope: !2, file: !2, line: 3, type: !10, isLocal: false, isDefinition: true, scopeLine: 3, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !4, variables: !17)
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!17 = !{!18}
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!18 = !DILocalVariable(name: "bar2", arg: 1, scope: !16, file: !2, line: 3, type: !3)
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!19 = !DILocation(line: 3, scope: !16)
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!20 = distinct !DISubprogram(name: "main", scope: !2, file: !2, line: 5, type: !21, isLocal: false, isDefinition: true, scopeLine: 5, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !4, variables: !5)
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!21 = !DISubroutineType(types: !22)
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!22 = !{!3}
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!23 = !DILocation(line: 6, scope: !20)
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!24 = !{!25, !25, i64 0}
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!25 = !{!"int", !26}
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!26 = !{!"omnipotent char", !27}
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!27 = !{!"Simple C/C++ TBAA"}
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