[Bug c/20284] New: CCP still doesn't look inside initializers for structures
franck dot bui-huu at innova-card dot com
gcc-bugzilla@gcc.gnu.org
Wed Mar 2 15:15:00 GMT 2005
GCC can't optimise this simple code:
static const struct my_struct {
int a;
int b;
} foo = { .a = 2, .b = 3};
int main(int argc, char **argv)
{
int volatile tmp;
tmp = foo.a * foo.b;
return 0;
}
GCC generates a "mul" opcode whereas every things are constant.
--
Summary: CCP still doesn't look inside initializers for
structures
Product: gcc
Version: 3.4.2
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: c
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: franck dot bui-huu at innova-card dot com
CC: gcc-bugs at gcc dot gnu dot org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20284
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