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1; RUN: llc -filetype=obj -o - %s | llvm-dwarfdump --name cntrl_flags - | FileCheck %s
2; CHECK: DW_OP_reg0 W0
3;
4; void use(unsigned char);
5; f(unsigned long long cntrl_flags,
6;                           int page_count)
7; {
8;         unsigned char tag;
9;         tag = (((cntrl_flags) >> 32) & 0xFF);
10;         use(tag);
11; }
12
13source_filename = "test.i"
14target datalayout = "e-m:o-i64:64-i128:128-n32:64-S128"
15target triple = "arm64-apple-ios5.0.0"
16
17; Function Attrs: nounwind ssp uwtable
18define i32 @f(i64 %cntrl_flags) local_unnamed_addr #0 !dbg !8 {
19entry:
20  tail call void @llvm.dbg.value(metadata i64 %cntrl_flags, metadata !14, metadata !DIExpression()), !dbg !18
21  %shr = lshr i64 %cntrl_flags, 32, !dbg !20
22  %conv = trunc i64 %shr to i8, !dbg !21
23  tail call void @llvm.dbg.value(metadata i8 %conv, metadata !16, metadata !DIExpression()), !dbg !22
24  tail call void @use(i8 zeroext %conv) #3, !dbg !23
25  ret i32 undef, !dbg !24
26}
27
28declare void @use(i8 zeroext) local_unnamed_addr
29
30; Function Attrs: nounwind readnone speculatable
31declare void @llvm.dbg.value(metadata, metadata, metadata) #2
32
33attributes #0 = { nounwind ssp uwtable }
34attributes #2 = { nounwind readnone speculatable }
35attributes #3 = { nobuiltin nounwind }
36
37!llvm.dbg.cu = !{!0}
38!llvm.module.flags = !{!3, !4, !5, !6}
39!llvm.ident = !{!7}
40
41!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 6.0.0 (trunk 317700) (llvm/trunk 317708)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2)
42!1 = !DIFile(filename: "test.i", directory: "/")
43!2 = !{}
44!3 = !{i32 2, !"Dwarf Version", i32 2}
45!4 = !{i32 2, !"Debug Info Version", i32 3}
46!5 = !{i32 1, !"wchar_size", i32 4}
47!6 = !{i32 7, !"PIC Level", i32 2}
48!7 = !{!"clang version 6.0.0 (trunk 317700) (llvm/trunk 317708)"}
49!8 = distinct !DISubprogram(name: "f", scope: !1, file: !1, line: 2, type: !9, isLocal: false, isDefinition: true, scopeLine: 4, flags: DIFlagPrototyped, isOptimized: true, unit: !0, retainedNodes: !13)
50!9 = !DISubroutineType(types: !10)
51!10 = !{!11, !11}
52!11 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
53!12 = !DIBasicType(name: "long long unsigned int", size: 64, encoding: DW_ATE_unsigned)
54!13 = !{!14, !16}
55!14 = !DILocalVariable(name: "cntrl_flags", arg: 1, scope: !8, file: !1, line: 2, type: !12)
56!16 = !DILocalVariable(name: "tag", scope: !8, file: !1, line: 5, type: !17)
57!17 = !DIBasicType(name: "unsigned char", size: 8, encoding: DW_ATE_unsigned_char)
58!18 = !DILocation(line: 2, column: 22, scope: !8)
59!19 = !DILocation(line: 3, column: 31, scope: !8)
60!20 = !DILocation(line: 6, column: 24, scope: !8)
61!21 = !DILocation(line: 6, column: 8, scope: !8)
62!22 = !DILocation(line: 5, column: 16, scope: !8)
63!23 = !DILocation(line: 7, column: 2, scope: !8)
64!24 = !DILocation(line: 8, column: 1, scope: !8)
65