https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110087
--- Comment #7 from Uroš Bizjak <ubizjak at gmail dot com> ---
Similar conversion, not performed by gcc:
--cut here--
#include <stdbool.h>
_Bool foo (void);
int bar (int r)
{
if (foo ())
r++;
return r;
}
--cut here--
gcc -O2:
movl %edi, %ebx
call foo
cmpb $1, %al
sbbl $-1, %ebx
movl %ebx, %eax
could be:
movl %edi, %ebx
callq foo
movzbl %al, %eax
addl %ebx, %eax
