51 lines
2.6 KiB
LLVM
51 lines
2.6 KiB
LLVM
; RUN: opt < %s -reassociate -S | FileCheck %s
|
|
|
|
; Check that reassociate pass now salvages debug info when dropping instructions.
|
|
|
|
define hidden i32 @main(i32 %argc, i8** %argv) {
|
|
entry:
|
|
; CHECK: call void @llvm.dbg.value(metadata i32 %argc, metadata [[VAR_B:![0-9]+]], metadata !DIExpression(DW_OP_plus_uconst, 1, DW_OP_stack_value))
|
|
%add = add nsw i32 %argc, 1, !dbg !26
|
|
call void @llvm.dbg.value(metadata i32 %add, metadata !22, metadata !DIExpression()), !dbg !25
|
|
%add1 = add nsw i32 %argc, %add, !dbg !27
|
|
ret i32 %add1, !dbg !28
|
|
}
|
|
|
|
declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
|
|
declare void @llvm.dbg.value(metadata, metadata, metadata) #1
|
|
|
|
!llvm.dbg.cu = !{!0}
|
|
!llvm.module.flags = !{!3, !4, !5, !6}
|
|
!llvm.ident = !{!7}
|
|
|
|
!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus_14, file: !1, producer: "clang version 10.0.0", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, debugInfoForProfiling: true, nameTableKind: None)
|
|
!1 = !DIFile(filename: "test2.cpp", directory: "C:\")
|
|
!2 = !{}
|
|
!3 = !{i32 2, !"Dwarf Version", i32 4}
|
|
!4 = !{i32 2, !"Debug Info Version", i32 3}
|
|
!5 = !{i32 1, !"wchar_size", i32 2}
|
|
!6 = !{i32 7, !"PIC Level", i32 2}
|
|
!7 = !{!"clang version 10.0.0"}
|
|
!8 = distinct !DISubprogram(name: "main", scope: !9, file: !9, line: 1, type: !10, scopeLine: 1, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !18)
|
|
!9 = !DIFile(filename: "./test2.cpp", directory: "C:\")
|
|
!10 = !DISubroutineType(types: !11)
|
|
!11 = !{!12, !13, !14}
|
|
!12 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
|
|
!13 = !DIDerivedType(tag: DW_TAG_const_type, baseType: !12)
|
|
!14 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !15, size: 64)
|
|
!15 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !16, size: 64)
|
|
!16 = !DIDerivedType(tag: DW_TAG_const_type, baseType: !17)
|
|
!17 = !DIBasicType(name: "char", size: 8, encoding: DW_ATE_signed_char)
|
|
!18 = !{!19, !20, !21, !22, !23, !24}
|
|
!19 = !DILocalVariable(name: "argc", arg: 1, scope: !8, file: !9, line: 1, type: !13)
|
|
!20 = !DILocalVariable(name: "argv", arg: 2, scope: !8, file: !9, line: 1, type: !14)
|
|
!21 = !DILocalVariable(name: "a", scope: !8, file: !9, line: 2, type: !12)
|
|
; CHECK: [[VAR_B]] = !DILocalVariable(name: "b"
|
|
!22 = !DILocalVariable(name: "b", scope: !8, file: !9, line: 3, type: !12)
|
|
!23 = !DILocalVariable(name: "to_return", scope: !8, file: !9, line: 4, type: !12)
|
|
!24 = !DILocalVariable(name: "result", scope: !8, file: !9, line: 5, type: !12)
|
|
!25 = !DILocation(line: 0, scope: !8)
|
|
!26 = !DILocation(line: 3, scope: !8)
|
|
!27 = !DILocation(line: 4, scope: !8)
|
|
!28 = !DILocation(line: 6, scope: !8)
|