101 lines
4.6 KiB
LLVM
101 lines
4.6 KiB
LLVM
; RUN: llc -filetype=obj -o - < %s | llvm-dwarfdump - --debug-loc | FileCheck %s
|
|
;
|
|
; Created using clang -g -O3 from:
|
|
; struct S0 {
|
|
; short f0;
|
|
; int f3;
|
|
; } a;
|
|
; void fn1(short p1) {
|
|
; struct S0 b, c = {3};
|
|
; b.f3 = p1;
|
|
; a = b = c;
|
|
; }
|
|
;
|
|
; int main() { return 0; }
|
|
;
|
|
; This is similar to the bug in test/DebugInfo/ARM/PR26163.ll, except that there is an
|
|
; extra non-overlapping range first. Thus, we make sure that the backend actually looks
|
|
; at all expressions when determining whether to merge ranges, not just the first one.
|
|
; AS in 26163, we only expect one range as the first one is zero sized.
|
|
;
|
|
;
|
|
; CHECK: (0x0000000000000000, 0x000000000000000f): DW_OP_lit3, DW_OP_piece 0x4, DW_OP_lit0, DW_OP_piece 0x4
|
|
|
|
source_filename = "test/DebugInfo/X86/PR26148.ll"
|
|
target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
|
|
target triple = "x86_64-apple-macosx10.11.0"
|
|
|
|
%struct.S0 = type { i16, i32 }
|
|
|
|
@a = common global %struct.S0 zeroinitializer, align 4, !dbg !0
|
|
|
|
; Function Attrs: nounwind readnone
|
|
declare void @llvm.dbg.declare(metadata, metadata, metadata) #0
|
|
|
|
; Function Attrs: nounwind readnone
|
|
declare void @llvm.dbg.value(metadata, metadata, metadata) #0
|
|
|
|
define void @fn1(i16 signext %p1) !dbg !16 {
|
|
entry:
|
|
tail call void @llvm.dbg.value(metadata i16 %p1, metadata !20, metadata !23), !dbg !24
|
|
tail call void @llvm.dbg.declare(metadata %struct.S0* undef, metadata !21, metadata !23), !dbg !25
|
|
tail call void @llvm.dbg.declare(metadata %struct.S0* undef, metadata !22, metadata !23), !dbg !26
|
|
tail call void @llvm.dbg.value(metadata i32 3, metadata !22, metadata !27), !dbg !26
|
|
tail call void @llvm.dbg.value(metadata i32 0, metadata !22, metadata !28), !dbg !26
|
|
tail call void @llvm.dbg.value(metadata i16 %p1, metadata !21, metadata !29), !dbg !25
|
|
tail call void @llvm.dbg.value(metadata i32 3, metadata !21, metadata !27), !dbg !25
|
|
tail call void @llvm.dbg.value(metadata i32 0, metadata !21, metadata !28), !dbg !25
|
|
store i32 3, i32* bitcast (%struct.S0* @a to i32*), align 4, !dbg !30
|
|
store i32 0, i32* getelementptr inbounds (%struct.S0, %struct.S0* @a, i64 0, i32 1), align 4, !dbg !30
|
|
ret void, !dbg !31
|
|
}
|
|
|
|
define i32 @main() !dbg !32 {
|
|
entry:
|
|
ret i32 0, !dbg !35
|
|
}
|
|
|
|
attributes #0 = { nounwind readnone }
|
|
|
|
!llvm.dbg.cu = !{!2}
|
|
!llvm.module.flags = !{!12, !13, !14}
|
|
!llvm.ident = !{!15}
|
|
|
|
!0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression())
|
|
!1 = !DIGlobalVariable(name: "a", scope: !2, file: !3, line: 4, type: !6, isLocal: false, isDefinition: true)
|
|
!2 = distinct !DICompileUnit(language: DW_LANG_C99, file: !3, producer: "clang version 3.9.0", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !4, globals: !5)
|
|
!3 = !DIFile(filename: "small.c", directory: "/Users/kfischer/Projects/clangbug")
|
|
!4 = !{}
|
|
!5 = !{!0}
|
|
!6 = !DICompositeType(tag: DW_TAG_structure_type, name: "S0", file: !3, line: 1, size: 64, align: 32, elements: !7)
|
|
!7 = !{!8, !10}
|
|
!8 = !DIDerivedType(tag: DW_TAG_member, name: "f0", scope: !6, file: !3, line: 2, baseType: !9, size: 16, align: 16)
|
|
!9 = !DIBasicType(name: "short", size: 16, align: 16, encoding: DW_ATE_signed)
|
|
!10 = !DIDerivedType(tag: DW_TAG_member, name: "f3", scope: !6, file: !3, line: 3, baseType: !11, size: 32, align: 32, offset: 32)
|
|
!11 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
|
|
!12 = !{i32 2, !"Dwarf Version", i32 2}
|
|
!13 = !{i32 2, !"Debug Info Version", i32 3}
|
|
!14 = !{i32 1, !"PIC Level", i32 2}
|
|
!15 = !{!"clang version 3.9.0"}
|
|
!16 = distinct !DISubprogram(name: "fn1", scope: !3, file: !3, line: 5, type: !17, isLocal: false, isDefinition: true, scopeLine: 5, flags: DIFlagPrototyped, isOptimized: true, unit: !2, retainedNodes: !19)
|
|
!17 = !DISubroutineType(types: !18)
|
|
!18 = !{null, !9}
|
|
!19 = !{!20, !21, !22}
|
|
!20 = !DILocalVariable(name: "p1", arg: 1, scope: !16, file: !3, line: 5, type: !9)
|
|
!21 = !DILocalVariable(name: "b", scope: !16, file: !3, line: 6, type: !6)
|
|
!22 = !DILocalVariable(name: "c", scope: !16, file: !3, line: 6, type: !6)
|
|
!23 = !DIExpression()
|
|
!24 = !DILocation(line: 5, column: 16, scope: !16)
|
|
!25 = !DILocation(line: 6, column: 13, scope: !16)
|
|
!26 = !DILocation(line: 6, column: 16, scope: !16)
|
|
!27 = !DIExpression(DW_OP_LLVM_fragment, 0, 32)
|
|
!28 = !DIExpression(DW_OP_LLVM_fragment, 32, 32)
|
|
!29 = !DIExpression(DW_OP_LLVM_fragment, 32, 16)
|
|
!30 = !DILocation(line: 8, column: 9, scope: !16)
|
|
!31 = !DILocation(line: 9, column: 1, scope: !16)
|
|
!32 = distinct !DISubprogram(name: "main", scope: !3, file: !3, line: 11, type: !33, isLocal: false, isDefinition: true, scopeLine: 11, isOptimized: true, unit: !2, retainedNodes: !4)
|
|
!33 = !DISubroutineType(types: !34)
|
|
!34 = !{!11}
|
|
!35 = !DILocation(line: 11, column: 14, scope: !32)
|
|
|