65 lines
2.8 KiB
LLVM
65 lines
2.8 KiB
LLVM
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; RUN: llc -filetype=obj -o - %s | llvm-dwarfdump --name cntrl_flags - | FileCheck %s
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; CHECK: DW_OP_reg0 W0
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;
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; void use(unsigned char);
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; f(unsigned long long cntrl_flags,
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; int page_count)
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; {
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; unsigned char tag;
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; tag = (((cntrl_flags) >> 32) & 0xFF);
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; use(tag);
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; }
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source_filename = "test.i"
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target datalayout = "e-m:o-i64:64-i128:128-n32:64-S128"
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target triple = "arm64-apple-ios5.0.0"
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; Function Attrs: nounwind ssp uwtable
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define i32 @f(i64 %cntrl_flags) local_unnamed_addr #0 !dbg !8 {
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entry:
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tail call void @llvm.dbg.value(metadata i64 %cntrl_flags, metadata !14, metadata !DIExpression()), !dbg !18
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%shr = lshr i64 %cntrl_flags, 32, !dbg !20
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%conv = trunc i64 %shr to i8, !dbg !21
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tail call void @llvm.dbg.value(metadata i8 %conv, metadata !16, metadata !DIExpression()), !dbg !22
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tail call void @use(i8 zeroext %conv) #3, !dbg !23
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ret i32 undef, !dbg !24
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}
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declare void @use(i8 zeroext) local_unnamed_addr
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; Function Attrs: nounwind readnone speculatable
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declare void @llvm.dbg.value(metadata, metadata, metadata) #2
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attributes #0 = { nounwind ssp uwtable }
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attributes #2 = { nounwind readnone speculatable }
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attributes #3 = { nobuiltin nounwind }
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!3, !4, !5, !6}
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!llvm.ident = !{!7}
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!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)
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!1 = !DIFile(filename: "test.i", directory: "/")
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!2 = !{}
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!3 = !{i32 2, !"Dwarf Version", i32 2}
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!4 = !{i32 2, !"Debug Info Version", i32 3}
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!5 = !{i32 1, !"wchar_size", i32 4}
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!6 = !{i32 7, !"PIC Level", i32 2}
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!7 = !{!"clang version 6.0.0 (trunk 317700) (llvm/trunk 317708)"}
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!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)
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!9 = !DISubroutineType(types: !10)
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!10 = !{!11, !11}
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!11 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
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!12 = !DIBasicType(name: "long long unsigned int", size: 64, encoding: DW_ATE_unsigned)
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!13 = !{!14, !16}
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!14 = !DILocalVariable(name: "cntrl_flags", arg: 1, scope: !8, file: !1, line: 2, type: !12)
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!16 = !DILocalVariable(name: "tag", scope: !8, file: !1, line: 5, type: !17)
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!17 = !DIBasicType(name: "unsigned char", size: 8, encoding: DW_ATE_unsigned_char)
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!18 = !DILocation(line: 2, column: 22, scope: !8)
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!19 = !DILocation(line: 3, column: 31, scope: !8)
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!20 = !DILocation(line: 6, column: 24, scope: !8)
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!21 = !DILocation(line: 6, column: 8, scope: !8)
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!22 = !DILocation(line: 5, column: 16, scope: !8)
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!23 = !DILocation(line: 7, column: 2, scope: !8)
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!24 = !DILocation(line: 8, column: 1, scope: !8)
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