https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81761
Bug ID: 81761
Summary: assembler error on __func__ et al. on attribute target
overloads
Product: gcc
Version: 8.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: msebor at gcc dot gnu.org
Target Milestone: ---
Using the assert() macro or the __func__ special identifier in two or more
overloads of a function that differ only in their attribute target
specification leads to assembler errors caused by the identifiers not being
sufficiently differentiated from one another. The test case below shows the
problem on x86_64 but the same issue is likely to affect the powerpc64 back
end.
$ cat a.c && gcc -Wall -Wextra -xc++ a.c && ./a.out
#include <assert.h>
#define A "arch=silvermont"
void __attribute__ ((target ("default")))
foo ()
{
assert (!__builtin_cpu_is ("silvermont"));
}
void __attribute__ ((target (A)))
foo ()
{
assert (__builtin_cpu_is ("silvermont"));
}
/tmp/ccX8mC6W.s: Assembler messages:
/tmp/ccX8mC6W.s:82: Error: symbol `_ZZ3foovE19__PRETTY_FUNCTION__' is already
defined
