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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
39 lines
1.6 KiB
LLVM
39 lines
1.6 KiB
LLVM
; RUN: %llc_dwarf -filetype=obj < %s | llvm-dwarfdump -debug-dump=info - | FileCheck %s
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; REQUIRES: object-emission
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; Generated by clang -c -g -std=c11 -S -emit-llvm from the following C11 source
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;
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; _Atomic const int i;
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;
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; CHECK: DW_TAG_variable
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; CHECK: DW_TAG_const_type
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; CHECK: DW_TAG_atomic_type
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; CHECK-NOT: NULL
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; CHECK: DW_TAG_base_type
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; ModuleID = 'atomic.c'
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source_filename = "atomic.c"
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target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-unknown-linux-gnu"
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@i = common global i32 0, align 4, !dbg !0
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!llvm.dbg.cu = !{!2}
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!llvm.module.flags = !{!9, !10}
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!llvm.ident = !{!11}
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!0 = distinct !DIGlobalVariableExpression(var: !1, expr: !DIExpression())
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!1 = !DIGlobalVariable(name: "i", scope: !2, file: !3, line: 1, type: !6, isLocal: false, isDefinition: true)
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!2 = distinct !DICompileUnit(language: DW_LANG_C99, file: !3, producer: "clang version 4.0.0 (http://llvm.org/git/clang.git cd238117e3a8a57271a82d0bb03d6df6ad8f073e) (http://llvm.org/git/llvm.git 9fd063832c1541aad3907cd60ac344d36997905f)", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !4, globals: !5)
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!3 = !DIFile(filename: "atomic.c", directory: "/tmp")
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!4 = !{}
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!5 = !{!0}
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!6 = !DIDerivedType(tag: DW_TAG_const_type, baseType: !7)
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!7 = !DIDerivedType(tag: DW_TAG_atomic_type, baseType: !8)
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!8 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
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!9 = !{i32 2, !"Dwarf Version", i32 5}
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!10 = !{i32 2, !"Debug Info Version", i32 3}
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!11 = !{!"clang version 4.0.0 (http://llvm.org/git/clang.git cd238117e3a8a57271a82d0bb03d6df6ad8f073e) (http://llvm.org/git/llvm.git 9fd063832c1541aad3907cd60ac344d36997905f)"}
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