6d353348e5
Summary: Most DIExpressions are empty or very simple. When they are complex, they tend to be unique, so checking them inline is reasonable. This also avoids the need for CodeGen passes to append to the llvm.dbg.mir named md node. See also PR22780, for making DIExpression not be an MDNode. Reviewers: aprantl, dexonsmith, dblaikie Subscribers: qcolombet, javed.absar, eraman, hiraditya, llvm-commits Differential Revision: https://reviews.llvm.org/D37075 llvm-svn: 311594
30 lines
1.3 KiB
LLVM
30 lines
1.3 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]+]])
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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)
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!1 = !DIGlobalVariable(name: "a", scope: null, type: !6, isLocal: false, isDefinition: true)
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!2 = !DIGlobalVariableExpression(var: !3)
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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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