------- Comment #1 from zuxy dot meng at gmail dot com 2006-06-17 06:25 -------
Created an attachment (id=11685)
--> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=11685&action=view)
The file that gcc fails to compile correctly.
Use gcc -S -msse and look at the assembly. GCC allocates __m128 locals directly
on the stack without adjusting ESP, which might not be 16-byte aligned. But GCC
uses movaps, which requires its operand to be 16-byte aligned, to access those
locals.
ICC solves this problem by adding
pushl %ebp
movl %esp, %ebp
andl $-16, %esp
to the function prolog
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28069
