From a7645a3c66668da5e2bc772a8e5ab03dc301610c Mon Sep 17 00:00:00 2001 From: Bill Wendling Date: Tue, 4 Dec 2012 06:20:49 +0000 Subject: Add a 'count' field to the DWARF subrange. 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 --- lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'lib/CodeGen') diff --git a/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp b/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp index 718e0dc..f5f36e4 100644 --- a/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp +++ b/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp @@ -1252,6 +1252,7 @@ void CompileUnit::constructSubrangeDIE(DIE &Buffer, DISubrange SR, addDIEEntry(DW_Subrange, dwarf::DW_AT_type, dwarf::DW_FORM_ref4, IndexTy); uint64_t L = SR.getLo(); uint64_t H = SR.getHi(); + int64_t Count = 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 +1266,8 @@ void CompileUnit::constructSubrangeDIE(DIE &Buffer, DISubrange SR, } if (L) addUInt(DW_Subrange, dwarf::DW_AT_lower_bound, 0, L); - addUInt(DW_Subrange, dwarf::DW_AT_upper_bound, 0, H); + if (H > 0 || Count != 0) + addUInt(DW_Subrange, dwarf::DW_AT_upper_bound, 0, H); Buffer.addChild(DW_Subrange); } -- cgit v1.1