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a9fbb2813b
This patch reverses the edge from DIGlobalVariable to GlobalVariable. This will allow us to more easily preserve debug info metadata when manipulating global variables. Fixes PR30362. A program for upgrading test cases is attached to that bug. Differential Revision: http://reviews.llvm.org/D20147 llvm-svn: 281284
101 lines
4.2 KiB
LLVM
101 lines
4.2 KiB
LLVM
; RUN: llc -filetype=asm -fast-isel=false -O0 < %s | FileCheck %s
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;
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; Generated by:
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; clang -emit-llvm -S -g test.cpp
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; typedef double fp_t;
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; typedef unsigned long int_t;
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;
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; int_t glb_start = 17;
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; int_t glb_end = 42;
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;
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; int main()
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; {
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; int_t start = glb_start;
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; int_t end = glb_end;
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;
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; fp_t dbl_start = (fp_t) start;
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; fp_t dbl_end = (fp_t) end;
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;
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; return 0;
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; }
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; SelectionDAG performs CSE on constant pool loads. Make sure line numbers
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; from such nodes are not propagated. Doing so results in oscillating line numbers.
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; CHECK: .loc 1 12
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; CHECK: .loc 1 13
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; CHECK-NOT: .loc 1 12
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; ModuleID = 't.cpp'
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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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@glb_start = global i64 17, align 8, !dbg !7
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@glb_end = global i64 42, align 8, !dbg !10
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; Function Attrs: norecurse nounwind uwtable
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define i32 @main() !dbg !14 {
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%1 = alloca i32, align 4
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%2 = alloca i64, align 8
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%3 = alloca i64, align 8
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%4 = alloca double, align 8
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%5 = alloca double, align 8
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store i32 0, i32* %1, align 4
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call void @llvm.dbg.declare(metadata i64* %2, metadata !18, metadata !19), !dbg !20
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%6 = load i64, i64* @glb_start, align 8, !dbg !21
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store i64 %6, i64* %2, align 8, !dbg !20
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call void @llvm.dbg.declare(metadata i64* %3, metadata !22, metadata !19), !dbg !23
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%7 = load i64, i64* @glb_end, align 8, !dbg !24
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store i64 %7, i64* %3, align 8, !dbg !23
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call void @llvm.dbg.declare(metadata double* %4, metadata !25, metadata !19), !dbg !26
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%8 = load i64, i64* %2, align 8, !dbg !27
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%9 = uitofp i64 %8 to double, !dbg !27
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store double %9, double* %4, align 8, !dbg !26
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call void @llvm.dbg.declare(metadata double* %5, metadata !28, metadata !19), !dbg !29
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%10 = load i64, i64* %3, align 8, !dbg !30
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%11 = uitofp i64 %10 to double, !dbg !30
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store double %11, double* %5, align 8, !dbg !29
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ret i32 0, !dbg !31
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}
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; Function Attrs: nounwind readnone
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declare void @llvm.dbg.declare(metadata, metadata, metadata)
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!11, !12}
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!llvm.ident = !{!13}
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!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, producer: "clang version 3.9.0 (trunk 268246)", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, retainedTypes: !3, globals: !6)
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!1 = !DIFile(filename: "/home/wpieb/test/D12094.cpp", directory: "/home/wpieb/build/llvm/trunk/llvm-RelWithDebInfo")
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!2 = !{}
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!3 = !{!4}
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!4 = !DIDerivedType(tag: DW_TAG_typedef, name: "fp_t", file: !1, line: 1, baseType: !5)
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!5 = !DIBasicType(name: "double", size: 64, align: 64, encoding: DW_ATE_float)
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!6 = !{!7, !10}
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!7 = distinct !DIGlobalVariable(name: "glb_start", scope: !0, file: !1, line: 4, type: !8, isLocal: false, isDefinition: true)
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!8 = !DIDerivedType(tag: DW_TAG_typedef, name: "int_t", file: !1, line: 2, baseType: !9)
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!9 = !DIBasicType(name: "long unsigned int", size: 64, align: 64, encoding: DW_ATE_unsigned)
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!10 = distinct !DIGlobalVariable(name: "glb_end", scope: !0, file: !1, line: 5, type: !8, isLocal: false, isDefinition: true)
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!11 = !{i32 2, !"Dwarf Version", i32 4}
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!12 = !{i32 2, !"Debug Info Version", i32 3}
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!13 = !{!"clang version 3.9.0 (trunk 268246)"}
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!14 = distinct !DISubprogram(name: "main", scope: !1, file: !1, line: 7, type: !15, isLocal: false, isDefinition: true, scopeLine: 8, flags: DIFlagPrototyped, isOptimized: false, unit: !0, variables: !2)
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!15 = !DISubroutineType(types: !16)
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!16 = !{!17}
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!17 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
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!18 = !DILocalVariable(name: "start", scope: !14, file: !1, line: 9, type: !8)
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!19 = !DIExpression()
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!20 = !DILocation(line: 9, column: 9, scope: !14)
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!21 = !DILocation(line: 9, column: 17, scope: !14)
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!22 = !DILocalVariable(name: "end", scope: !14, file: !1, line: 10, type: !8)
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!23 = !DILocation(line: 10, column: 9, scope: !14)
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!24 = !DILocation(line: 10, column: 17, scope: !14)
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!25 = !DILocalVariable(name: "dbl_start", scope: !14, file: !1, line: 12, type: !4)
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!26 = !DILocation(line: 12, column: 8, scope: !14)
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!27 = !DILocation(line: 12, column: 27, scope: !14)
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!28 = !DILocalVariable(name: "dbl_end", scope: !14, file: !1, line: 13, type: !4)
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!29 = !DILocation(line: 13, column: 8, scope: !14)
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!30 = !DILocation(line: 13, column: 27, scope: !14)
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!31 = !DILocation(line: 15, column: 3, scope: !14)
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