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Add a 'count' field to the DWARF subrange.

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The count field is necessary because there isn't a difference between the 'lo'
and 'hi' attributes for a one-element array and a zero-element array. When the
count is '0', we know that this is a zero-element array. When it's >=1, then
it's a normal constant sized array. When it's -1, then the array is unbounded.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169218 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Bill Wendling
2012-12-04 06:20:49 +00:00
parent 319d594e22
commit a7645a3c66
19 changed files with 158 additions and 18 deletions
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2
test/DebugInfo/array.ll
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@ -29,6 +29,6 @@ declare void @llvm.dbg.declare(metadata, metadata) nounwind readnone
;CHECK-NOT: DW_AT_lower_bound
;CHECK-NOT: DW_AT_upper_bound
;CHECK-NEXT: End Of Children Mark
!10 = metadata !{i32 589857, i64 1, i64 0} ; [ DW_TAG_subrange_type ]
!10 = metadata !{i32 589857, i64 1, i64 0, i64 -1} ; [ DW_TAG_subrange_type ]
!11 = metadata !{i32 4, i32 7, metadata !7, null}
!12 = metadata !{i32 5, i32 3, metadata !7, null}