05782218ab
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
30 lines
1.4 KiB
LLVM
30 lines
1.4 KiB
LLVM
; RUN: opt -global-merge -global-merge-max-offset=100 -S -o - %s | FileCheck %s
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source_filename = "test/Transforms/GlobalMerge/debug-info.ll"
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target datalayout = "e-p:64:64"
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target triple = "x86_64-unknown-linux-gnu"
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; CHECK: @_MergedGlobals = private global { i32, i32 } { i32 1, i32 2 }, !dbg [[A:![0-9]+]], !dbg [[B:![0-9]+]]
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@a = internal global i32 1, !dbg !0
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@b = internal global i32 2, !dbg !2
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define void @use1() {
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%x = load i32, i32* @a
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%y = load i32, i32* @b
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ret void
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}
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; CHECK: [[A]] = !DIGlobalVariableExpression(var: [[AVAR:![0-9]+]], expr: !DIExpression())
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; CHECK: [[AVAR]] = !DIGlobalVariable(name: "a", scope: null, type: !2, isLocal: false, isDefinition: true)
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; CHECK: [[B]] = !DIGlobalVariableExpression(var: [[BVAR:![0-9]+]], expr: !DIExpression(DW_OP_plus_uconst, 4))
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; CHECK: [[BVAR]] = !DIGlobalVariable(name: "b", scope: null, type: !2, isLocal: false, isDefinition: true)
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!llvm.module.flags = !{!4, !5}
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!0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression())
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!1 = !DIGlobalVariable(name: "a", scope: null, type: !6, isLocal: false, isDefinition: true)
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!2 = !DIGlobalVariableExpression(var: !3, expr: !DIExpression())
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!3 = !DIGlobalVariable(name: "b", scope: null, type: !6, isLocal: false, isDefinition: true)
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!4 = !{i32 2, !"Debug Info Version", i32 3}
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!5 = !{i32 2, !"Dwarf Version", i32 4}
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!6 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
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