[Bug c/31361] SSE2 generation bug with shifts

[prakash at punnoor dot de]

------- Comment #2 from prakash at punnoor dot de  2007-03-26 10:53 -------
Uhm, looking at the docs again, I am not so sure whether I understood the shift
instructions correctly. It seems I cannot shift the (in this case) 32 bit
portions individually? Rather the second operand to psrld has to be seen as a
128bit value instead of 4 32bit values? Then my code is buggy. But anyway I am
still wondering why -O0 and -O1 are giving different results though.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31361