Hi,
2007/3/2, Rupert Wood <me@xxxxxxxxx>:
I think he wants the perftest.c.099t.optimized file that'd be generated on disk.
ah, okay, didn't use that option for now, so i didn't know that the
necessary info is written to files :) Here it comes:
;; Function test (test)
Analyzing Edge Insertions.
test ()
{
unsigned int ivtmp.28;
uint8_t ivtmp.27;
uint8_t pretmp.25;
uint8_t ctr;
<bb 0>:
ivtmp.28 = 0;
<L0>:;
ctr = (uint8_t) ivtmp.28;
xx = ctr;
ivtmp.28 = ivtmp.28 + 1;
if (ivtmp.28 != 64) goto <L0>; else goto <L1>;
<L1>:;
return;
}
Hm. It creates "unsigned int" for this comparison.
Now trying without the assignment within the loop:
;; Function test (test)
Analyzing Edge Insertions.
test ()
{
uint8_t ivtmp.27;
uint8_t pretmp.25;
uint8_t ctr;
<bb 0>:
ctr = 0;
<L0>:;
__asm__ __volatile__("nop"::);
ctr = ctr + 1;
if (ctr != 64) goto <L0>; else goto <L1>;
<L1>:;
return;
}
Here, ctr is taken for the comparison, not one of those ivtmp variables.
...Michael
