[Bug rtl-optimization/40838] gcc shouldn't assume that the stack is aligned

[ubizjak at gmail dot com]

------- Comment #73 from ubizjak at gmail dot com  2010-04-29 07:50 -------
>From the manual:

`-mstackrealign'
     Realign the stack at entry.  On the Intel x86, the `-mstackrealign'
     option will generate an alternate prologue and epilogue that
     realigns the runtime stack if necessary.  This supports mixing
     legacy codes that keep a 4-byte aligned stack with modern codes
     that keep a 16-byte stack for SSE compatibility.  See also the
     attribute `force_align_arg_pointer', applicable to individual
     functions.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40838