Sent from my iPhone
On Jan 22, 2009, at 5:54 PM, "hjl dot tools at gmail dot com" > wrote:
On x86, CX is used for shift. If CX is used for a variable, it
may not be preserved with shift:
[...@gnu-9 reg-1]$ cat r.c
extern void abort (void);
void
foo (int x)
{
if (x != 8)
abort ();
}
vo
On x86, CX is used for shift. If CX is used for a variable, it
may not be preserved with shift:
[...@gnu-9 reg-1]$ cat r.c
extern void abort (void);
void
foo (int x)
{
if (x != 8)
abort ();
}
void
bar (int g)
{
register int x __asm__("ecx");
x = 5;
foo (1 << g);
if (x != 5)
