bf66003a4f
PTX does not support negative values in .bNN data directives and we must typecast such values to unsigned before printing them. MCAsmInfo can now specify whether such casting is necessary for particular target. Differential Revision: https://reviews.llvm.org/D83423
44 lines
1.8 KiB
LLVM
44 lines
1.8 KiB
LLVM
; RUN: llc < %s -mtriple=nvptx64-nvidia-cuda | FileCheck %s
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; Produced at -O0 from:
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; struct {
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; char : 3;
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; char a : 6;
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; } __attribute__((__packed__)) b;
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; Note that DWARF 2 counts bit offsets backwards from the high end of
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; the storage unit to the high end of the bit field.
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; CHECK: .section .debug_info
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; CHECK: .b8 3 // Abbrev {{.*}} DW_TAG_structure_type
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; CHECK: .b8 3 // DW_AT_decl_line
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; CHECK-NEXT: .b8 1 // DW_AT_byte_size
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; CHECK-NEXT: .b8 6 // DW_AT_bit_size
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; Negative offset must be encoded as an unsigned integer.
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; CHECK-NEXT: .b64 0xffffffffffffffff // DW_AT_bit_offset
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; CHECK-NEXT: .b8 2 // DW_AT_data_member_location
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%struct.anon = type { i16 }
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@b = global %struct.anon zeroinitializer, align 1, !dbg !0
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!llvm.dbg.cu = !{!2}
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!llvm.module.flags = !{!10, !11, !12, !13}
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!llvm.ident = !{!14}
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!0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression())
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!1 = distinct !DIGlobalVariable(name: "b", scope: !2, file: !3, line: 4, type: !6, isLocal: false, isDefinition: true)
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!2 = distinct !DICompileUnit(language: DW_LANG_C99, file: !3, producer: "clang version 11.0.0 ", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !4, globals: !5, nameTableKind: None, sysroot: "/")
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!3 = !DIFile(filename: "repro.c", directory: "/tmp")
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!4 = !{}
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!5 = !{!0}
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!6 = distinct !DICompositeType(tag: DW_TAG_structure_type, file: !3, line: 1, size: 16, elements: !7)
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!7 = !{!8}
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!8 = !DIDerivedType(tag: DW_TAG_member, name: "a", scope: !6, file: !3, line: 3, baseType: !9, size: 6, offset: 3, flags: DIFlagBitField, extraData: i64 0)
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!9 = !DIBasicType(name: "char", size: 8, encoding: DW_ATE_signed_char)
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!10 = !{i32 7, !"Dwarf Version", i32 2}
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!11 = !{i32 2, !"Debug Info Version", i32 3}
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!12 = !{i32 1, !"wchar_size", i32 4}
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!13 = !{i32 7, !"PIC Level", i32 2}
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!14 = !{!"clang version 11.0.0 "}
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