When this function is compiled with -O, it works. When it's compiled without -O,
it reports error "error: can't find a register in class `GENERAL_REGS' while
reloading `asm'".
I think that syntactic corectness of language shouldn't depend on optimization
flags --- it should either report error in both cases or always succeed.
void f(char *p)
{
asm volatile
(""::"m"(p[0]),"m"(p[0]),"m"(p[0]),"m"(p[0]),"m"(p[0]),"m"(p[0]),"m"(p[0]),"m"(p[0]));
}
--
Summary: Complilation success depends on optimization being used
Product: gcc
Version: 3.4.3
Status: UNCONFIRMED
Severity: minor
Priority: P3
Component: c
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: mikulas at artax dot karlin dot mff dot cuni dot cz
CC: gcc-bugs at gcc dot gnu dot org
GCC build triplet: i686-pc-linux-gnu
GCC host triplet: i686-pc-linux-gnu
GCC target triplet: i686-pc-linux-gnu
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20645
