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32e4544198
The count attribute is more accurate with regards to the size of an array. It also obviates the upper bound attribute in the subrange. We can also better handle an unbound array by setting the count to -1 instead of the lower bound to 1 and upper bound to 0. llvm-svn: 169312
35 lines
2.0 KiB
LLVM
35 lines
2.0 KiB
LLVM
; RUN: llc -O0 < %s | FileCheck %s
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; Do not emit AT_upper_bound for an unbounded array.
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; radar 9241695
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define i32 @main() nounwind ssp {
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entry:
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%retval = alloca i32, align 4
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%a = alloca [0 x i32], align 4
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store i32 0, i32* %retval
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call void @llvm.dbg.declare(metadata !{[0 x i32]* %a}, metadata !6), !dbg !11
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ret i32 0, !dbg !12
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}
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declare void @llvm.dbg.declare(metadata, metadata) nounwind readnone
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!llvm.dbg.sp = !{!0}
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!0 = metadata !{i32 589870, i32 0, metadata !1, metadata !"main", metadata !"main", metadata !"", metadata !1, i32 3, metadata !3, i1 false, i1 true, i32 0, i32 0, i32 0, i32 0, i1 false, i32 ()* @main, null} ; [ DW_TAG_subprogram ]
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!1 = metadata !{i32 589865, metadata !"array.c", metadata !"/private/tmp", metadata !2} ; [ DW_TAG_file_type ]
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!2 = metadata !{i32 589841, i32 0, i32 12, metadata !"array.c", metadata !"/private/tmp", metadata !"clang version 3.0 (trunk 129138)", i1 true, i1 false, metadata !"", i32 0} ; [ DW_TAG_compile_unit ]
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!3 = metadata !{i32 589845, metadata !1, metadata !"", metadata !1, i32 0, i64 0, i64 0, i32 0, i32 0, i32 0, metadata !4, i32 0, i32 0} ; [ DW_TAG_subroutine_type ]
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!4 = metadata !{metadata !5}
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!5 = metadata !{i32 589860, metadata !2, metadata !"int", null, i32 0, i64 32, i64 32, i64 0, i32 0, i32 5} ; [ DW_TAG_base_type ]
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!6 = metadata !{i32 590080, metadata !7, metadata !"a", metadata !1, i32 4, metadata !8, i32 0} ; [ DW_TAG_auto_variable ]
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!7 = metadata !{i32 589835, metadata !0, i32 3, i32 12, metadata !1, i32 0} ; [ DW_TAG_lexical_block ]
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!8 = metadata !{i32 589825, metadata !2, metadata !"", metadata !2, i32 0, i64 0, i64 32, i32 0, i32 0, metadata !5, metadata !9, i32 0, i32 0} ; [ DW_TAG_array_type ]
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!9 = metadata !{metadata !10}
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;CHECK: DW_TAG_subrange_type
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;CHECK-NEXT: DW_AT_type
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;CHECK-NOT: DW_AT_lower_bound
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;CHECK-NOT: DW_AT_upper_bound
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;CHECK-NEXT: End Of Children Mark
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!10 = metadata !{i32 589857, i64 0, i64 -1} ; [ DW_TAG_subrange_type ]
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!11 = metadata !{i32 4, i32 7, metadata !7, null}
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!12 = metadata !{i32 5, i32 3, metadata !7, null}
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