------- Comment #7 from niklaus at gmail dot com 2008-09-06 18:28 -------
(In reply to comment #5) > Subject: Re: wrong-code on i486-linux-gnu with -O[12], -O0 works > > Because on x86 gnu/Linux, the precision is set to 80bits rather than > 64bit like it is on windows. > > Does increasing bits cause floating point errors. How could 64 bit precison give correct result where as 80 bit give incorrect one. I mean with changing the pow to powl and double to long double fixes the issue with optimization. Isn't long double precision 80 bits ? Also 1 more question . [EMAIL PROTECTED]:~/prog/tju$ gcc -O2 -mfpmath=sse bug_short.c -lm bug_short.c:1: warning: SSE instruction set disabled, using 387 arithmetics Shouldn't this be SSE instruction enabled and 387 disabled. 387 is causing the problem right ? I could be wrong , thats what i could figure out from the mail thread you marked as duplicate. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37390 ------- You are receiving this mail because: ------- You are on the CC list for the bug, or are watching someone who is. -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
