http://llvm.org/bugs/show_bug.cgi?id=16967
Bug ID: 16967
Summary: Debug info for non-type template parameters lacks
DW_AT_location depending on layout
Product: clang
Version: trunk
Hardware: PC
OS: All
Status: NEW
Severity: normal
Priority: P
Component: LLVM Codegen
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected]
Classification: Unclassified
consider:
struct Type {
unsigned int Data1;
unsigned short Data2, Data3;
unsigned char Data4;
};
template<const Type *G>
const Type *func() {
return G;
}
extern const Type Y;
const Type Y = {};
int main() {
func<&Y>();
}
compile with:
~/llvm/build/bin/clang /var/tmp/dlb.cpp -o /var/tmp/dlb -g
dwarfdump shows:
0x000000df: DW_TAG_template_value_parameter [9]
DW_AT_type [DW_FORM_ref4] (cu + 0x00e9 => {0x000000e9})
DW_AT_name [DW_FORM_strp] ( .debug_str[0x000000a7] = "G")
We are missing DW_AT_location
in the following gdb session:
Temporary breakpoint 1, main () at /var/tmp/dlb.cpp:15
15 func<&Y>();
(gdb) step
func<&Y> () at /var/tmp/dlb.cpp:9
9 return G;
(gdb) p G
$1 = <optimized out>
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