[Bug target/15617] building groff-1.19.1 with "-Os -march=pentium4" causes sig 11

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2004-06-02 01:58 -------
This looks like a case where the stack pointer is misaligned, movaps requires 16byte (128bit) aligned 
addresses So this caused by -Os implying -mpreferred-stack-boundary=32 which is wrong for SSE.  
Maybe the fix would be to imply -mpreferred-stack-boundary=128 if -msse (or is it -msse2) is turned 
on with -Os, this also causes var_arg25.c (I think) to fail at -Os.

Jan I added you as CC to find your opinion  on my suggestion.  I think a huge amount of people will run 
into this if they used -Os without knowning what is going on.

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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15617