------- Comment #39 from mikulas at artax dot karlin dot mff dot cuni dot cz
2009-09-20 06:30 -------
The updated patch fixes align-counterexample1.c, but not
align-counterexample2.c. Note that you must align the stack for all functions
that have some SSE operations, because you never know if the registers will be
spilled. The generated code is:
.globl f
.type f, @function
f:
pxor %xmm0, %xmm0
subl $28, %esp
xorl %eax, %eax
.p2align 5,,24
.L2:
movaps %xmm0, p(%eax)
addl $16, %eax
cmpl $400, %eax
jne .L2
movaps %xmm0, (%esp)
call g
movdqa (%esp), %xmm0
xorl %eax, %eax
.p2align 5,,24
.L3:
movaps %xmm0, q(%eax)
addl $16, %eax
cmpl $400, %eax
jne .L3
addl $28, %esp
ret
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40838
