[Bug target/39137] [4.4 Regression] -mpreferred-stack-boundary=2 causes lots of dynamic realign

[jakub at gcc dot gnu dot org]

------- Comment #14 from jakub at gcc dot gnu dot org  2009-02-12 08:03 -------
Won't this break Ada again (with -malign-double=2)?  I think we should reject
-malign-double= for -m64.

Alternatively, what about making MAX_STACK_ALIGNMENT a parameter instead, so
kernel could use -mmax-stack-boundary=2 -mpreferred-stack-boundary=2?  i386.c
would ensure this variable is at least as big as ix86_preferred_stack_boundary.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39137