Select DW_AT_const_value size based on global variable size.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132239 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp b/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp
index 212b086..9e4a61d 100644
--- a/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp
+++ b/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp
@@ -493,13 +493,21 @@
/// addConstantValue - Add constant value entry in variable DIE.
bool CompileUnit::addConstantValue(DIE *Die, ConstantInt *CI,
bool Unsigned) {
- if (CI->getBitWidth() <= 64) {
+ unsigned CIBitWidth = CI->getBitWidth();
+ if (CIBitWidth <= 64) {
+ unsigned form = 0;
+ switch (CIBitWidth) {
+ case 8: form = dwarf::DW_FORM_data1; break;
+ case 16: form = dwarf::DW_FORM_data2; break;
+ case 32: form = dwarf::DW_FORM_data4; break;
+ case 64: form = dwarf::DW_FORM_data8; break;
+ default:
+ form = Unsigned ? dwarf::DW_FORM_udata : dwarf::DW_FORM_sdata;
+ }
if (Unsigned)
- addUInt(Die, dwarf::DW_AT_const_value, dwarf::DW_FORM_udata,
- CI->getZExtValue());
+ addUInt(Die, dwarf::DW_AT_const_value, form, CI->getZExtValue());
else
- addSInt(Die, dwarf::DW_AT_const_value, dwarf::DW_FORM_sdata,
- CI->getSExtValue());
+ addSInt(Die, dwarf::DW_AT_const_value, form, CI->getSExtValue());
return true;
}