Use the 'count' attribute instead of the 'upper_bound' attribute.
If we have a type 'int a[1]' and a type 'int b[0]', the generated DWARF is the
same for both of them because we use the 'upper_bound' attribute. Instead use
the 'count' attrbute, which gives the correct number of elements in the array.
<rdar://problem/12566646>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167806 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp b/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp
index 2b07dda..bcb002c 100644
--- a/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp
+++ b/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp
@@ -1252,6 +1252,7 @@
addDIEEntry(DW_Subrange, dwarf::DW_AT_type, dwarf::DW_FORM_ref4, IndexTy);
uint64_t L = SR.getLo();
uint64_t H = SR.getHi();
+ uint64_t C = SR.getCount();
// The L value defines the lower bounds which is typically zero for C/C++. The
// H value is the upper bounds. Values are 64 bit. H - L + 1 is the size
@@ -1265,7 +1266,7 @@
}
if (L)
addUInt(DW_Subrange, dwarf::DW_AT_lower_bound, 0, L);
- addUInt(DW_Subrange, dwarf::DW_AT_upper_bound, 0, H);
+ addUInt(DW_Subrange, dwarf::DW_AT_count, 0, C);
Buffer.addChild(DW_Subrange);
}