[Bug target/32893] zlib segfault in inflate_table() compiled w/ -O -msse2 ftree-vectorize

[mahatma at eu dot by]

------- Comment #23 from mahatma at eu dot by  2009-08-10 17:48 -------
(In reply to comment #17)

> URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=129764
> Log:
>         PR tree-optimization/32893
>         * tree-vectorize.c (vect_can_force_dr_alignment_p): Check
>         STACK_BOUNDARY instead of PREFERRED_STACK_BOUNDARY.

In 4.4 STACK_BOUNDARY changed to MAX_STACK_ALIGNMENT in this place.
MAX_STACK_ALIGNMENT is STACK_BOUNDARY "by default", but in i386.h:
#define MAX_STACK_ALIGNMENT MAX_OFILE_ALIGNMENT

I not check code dependences more, but starting from 4.4.0 this error alive
(Bug 40985). Are there are regression or something else?

PS May be reopen this bug with other version or Bug 40985 as regression report?


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32893