1 ; RUN: llc -stop-after=livedebugvars < %s | FileCheck %s
2 ; ModuleID = 'debug_value-i8.bc'
3 source_filename = "debug_value.c"
4 target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128"
5 target triple = "aarch64"
7 ; When ISel promotes the result of i8 add, the attached dbg.value shouldn't be dropped.
9 ; Function Attrs: nounwind
10 define dso_local i32 @bar(i32*, i32) local_unnamed_addr #0 !dbg !10 {
11 %3 = trunc i32 %1 to i8, !dbg !20
12 %4 = add i8 %3, 97, !dbg !20
13 call void @llvm.dbg.value(metadata i8 %4, metadata !17, metadata !DIExpression()), !dbg !21
14 %5 = zext i8 %4 to i32, !dbg !22
15 tail call void @foo1(i32* %0, i32 %5) #2, !dbg !23
16 tail call void @foo2(i32* %0, i8 %4) #2, !dbg !24
17 ret i32 undef, !dbg !25
20 declare dso_local void @foo1(i32*, i32) local_unnamed_addr
22 declare dso_local void @foo2(i32*, i8) local_unnamed_addr
24 ; Function Attrs: nounwind readnone speculatable
25 declare void @llvm.dbg.value(metadata, metadata, metadata) #1
27 attributes #0 = { nounwind }
28 attributes #1 = { nounwind readnone speculatable }
29 attributes #2 = { nounwind }
32 !llvm.module.flags = !{!6, !7, !8}
35 !0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 7.0.0", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, retainedTypes: !3)
36 !1 = !DIFile(filename: "debug_value.c", directory: "./")
39 !4 = !DIBasicType(name: "char", size: 8, encoding: DW_ATE_unsigned_char)
40 !5 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
41 !6 = !{i32 2, !"Dwarf Version", i32 4}
42 !7 = !{i32 2, !"Debug Info Version", i32 3}
43 !8 = !{i32 1, !"wchar_size", i32 4}
44 !9 = !{!"clang version 7.0.0"}
45 !10 = distinct !DISubprogram(name: "bar", scope: !1, file: !1, line: 16, type: !11, isLocal: false, isDefinition: true, scopeLine: 16, flags: DIFlagPrototyped, isOptimized: true, unit: !0, retainedNodes: !14)
46 !11 = !DISubroutineType(types: !12)
48 !13 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !5, size: 64)
49 !14 = !{!15, !16, !17}
50 !15 = !DILocalVariable(name: "a", arg: 1, scope: !10, file: !1, line: 16, type: !13)
51 !16 = !DILocalVariable(name: "b", arg: 2, scope: !10, file: !1, line: 16, type: !5)
52 !17 = !DILocalVariable(name: "t", scope: !10, file: !1, line: 17, type: !4)
53 !18 = !DILocation(line: 16, column: 14, scope: !10)
54 !19 = !DILocation(line: 16, column: 21, scope: !10)
55 !20 = !DILocation(line: 17, column: 11, scope: !10)
56 !21 = !DILocation(line: 17, column: 7, scope: !10)
57 !22 = !DILocation(line: 18, column: 10, scope: !10)
58 !23 = !DILocation(line: 18, column: 2, scope: !10)
59 !24 = !DILocation(line: 19, column: 2, scope: !10)
60 !25 = !DILocation(line: 20, column: 1, scope: !10)