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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
32 lines
1.5 KiB
LLVM
32 lines
1.5 KiB
LLVM
; RUN: llvm-dis -o - %s.bc | FileCheck %s
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; CHECK: @g = common global i32 0, align 4, !dbg ![[G:[0-9]+]]
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; CHECK-DAG: ![[G]] = distinct !DIGlobalVariableExpression(var: ![[GVAR:[0-9]+]], expr: !DIExpression())
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; CHECK-DAG: distinct !DICompileUnit({{.*}}, globals: ![[GLOBS:[0-9]+]]
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; CHECK-DAG: ![[GLOBS]] = !{![[GEXPR:[0-9]+]]}
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; CHECK-DAG: ![[GEXPR]] = distinct !DIGlobalVariableExpression(var: ![[GVAR]], expr: !DIExpression())
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; CHECK-DAG: ![[GVAR]] = !DIGlobalVariable(name: "g",
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; Test the bitcode upgrade for DIGlobalVariable -> DIGlobalVariableExpression.
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; ModuleID = 'a.c'
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target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-apple-macosx10.12.0"
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@g = common global i32 0, align 4
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!6, !7, !8}
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!llvm.ident = !{!9}
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!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 3.7.0 (clang-stage1-configure-RA_build 241111)", isOptimized: false, runtimeVersion: 0, emissionKind: 1, enums: !2, retainedTypes: !2, subprograms: !2, globals: !3, imports: !2)
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!1 = !DIFile(filename: "a.c", directory: "/tmp")
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!2 = !{}
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!3 = !{!4}
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!4 = !DIGlobalVariable(name: "g", scope: !0, file: !1, line: 1, type: !5, isLocal: false, isDefinition: true, variable: i32* @g)
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!5 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
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!6 = !{i32 2, !"Dwarf Version", i32 2}
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!7 = !{i32 2, !"Debug Info Version", i32 3}
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!8 = !{i32 1, !"PIC Level", i32 2}
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!9 = !{!"clang version 3.7.0 (clang-stage1-configure-RA_build 241111)"}
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