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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
82 lines
3.1 KiB
LLVM
82 lines
3.1 KiB
LLVM
; RUN: llc -generate-arange-section < %s | FileCheck %s
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; -- header --
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; CHECK: .short 2 # DWARF Arange version number
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; CHECK-NEXT: .long .Lcu_begin0
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; CHECK-NEXT: .byte 8 # Address Size (in bytes)
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; CHECK-NEXT: .byte 0 # Segment Size (in bytes)
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; -- alignment --
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; CHECK-NEXT: .zero 4,255
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; <data section> - it should have made one span covering all vars in this CU.
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; CHECK-NEXT: .quad some_data
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; CHECK-NEXT: .quad .Lsec_end0-some_data
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; <other sections> - it should have made one span covering all vars in this CU.
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; CHECK-NEXT: .quad some_other
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; CHECK-NEXT: .quad .Lsec_end1-some_other
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; <common symbols> - it should have made one span for each symbol.
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; CHECK-NEXT: .quad some_bss
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; CHECK-NEXT: .quad 4
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; <text section> - it should have made one span covering all functions in this CU.
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; CHECK-NEXT: .quad .Lfunc_begin0
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; CHECK-NEXT: .quad .Lsec_end2-.Lfunc_begin0
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; -- finish --
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; CHECK-NEXT: # ARange terminator
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; -- source code --
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; Generated from: "clang -c -g -emit-llvm"
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;
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; int some_data = 4;
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; int some_bss;
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; int some_other __attribute__ ((section ("strange+section"))) = 5;
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;
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; void some_code()
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; {
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; some_bss += some_data + some_other;
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; }
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source_filename = "test/DebugInfo/X86/dwarf-aranges.ll"
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target triple = "x86_64-unknown-linux-gnu"
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@some_data = global i32 4, align 4, !dbg !0
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@some_other = global i32 5, section "strange+section", align 4, !dbg !4
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@some_bss = common global i32 0, align 4, !dbg !6
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define void @some_code() !dbg !13 {
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entry:
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%0 = load i32, i32* @some_data, align 4, !dbg !16
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%1 = load i32, i32* @some_other, align 4, !dbg !16
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%add = add nsw i32 %0, %1, !dbg !16
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%2 = load i32, i32* @some_bss, align 4, !dbg !16
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%add1 = add nsw i32 %2, %add, !dbg !16
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store i32 %add1, i32* @some_bss, align 4, !dbg !16
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ret void, !dbg !17
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}
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!llvm.dbg.cu = !{!8}
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!llvm.module.flags = !{!11, !12}
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!0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression())
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!1 = !DIGlobalVariable(name: "some_data", scope: null, file: !2, line: 1, type: !3, isLocal: false, isDefinition: true)
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!2 = !DIFile(filename: "test.c", directory: "/home/kayamon")
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!3 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
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!4 = !DIGlobalVariableExpression(var: !5, expr: !DIExpression())
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!5 = !DIGlobalVariable(name: "some_other", scope: null, file: !2, line: 3, type: !3, isLocal: false, isDefinition: true)
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!6 = !DIGlobalVariableExpression(var: !7, expr: !DIExpression())
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!7 = !DIGlobalVariable(name: "some_bss", scope: null, file: !2, line: 2, type: !3, isLocal: false, isDefinition: true)
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!8 = distinct !DICompileUnit(language: DW_LANG_C99, file: !2, producer: "clang version 3.4 ", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !9, retainedTypes: !9, globals: !10, imports: !9)
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!9 = !{}
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!10 = !{!0, !4, !6}
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!11 = !{i32 2, !"Dwarf Version", i32 4}
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!12 = !{i32 1, !"Debug Info Version", i32 3}
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!13 = distinct !DISubprogram(name: "some_code", scope: !2, file: !2, line: 5, type: !14, isLocal: false, isDefinition: true, scopeLine: 6, virtualIndex: 6, isOptimized: false, unit: !8, variables: !9)
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!14 = !DISubroutineType(types: !15)
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!15 = !{null}
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!16 = !DILocation(line: 7, scope: !13)
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!17 = !DILocation(line: 8, scope: !13)
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