[Bug target/36502] i386/darwin generates unnecessary stack ops in every function

["hjl at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>]

------- Comment #48 from hjl at gcc dot gnu dot org  2010-09-07 21:19 -------
Subject: Bug 36502

Author: hjl
Date: Tue Sep  7 21:18:55 2010
New Revision: 163971

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=163971
Log:
Redefine STACK_BOUNDARY/PREFERRED_STACK_BOUNDARY for Darwin/x86.

gcc/

2010-09-07  H.J. Lu  <hjl.tools@gmail.com>
            Jack Howarth <howarth@bromo.med.uc.edu>

        PR target/36502
        PR target/42313
        PR target/44651
        * gcc/config/i386/darwin.h (STACK_BOUNDARY): Redefine as 128 for
        profiling or 64-bit MS_ABI and as BITS_PER_WORD otherwise.
        (PREFERRED_STACK_BOUNDARY): Replace STACK_BOUNDARY with 128 in
        MAX macro.

gcc/testsuite/

2010-09-07  Jack Howarth <howarth@bromo.med.uc.edu>

        PR target/36502
        * gcc.target/i386/pr36502.c: New test.

        PR target/42313
        PR target/44651
        * gcc.target/i386/builtin-unreachable.c: Don't skip on darwin.
        * gcc/testsuite/gcc.dg/stack-usage-1.c: Use default on i386/Darwin.

Added:
    trunk/gcc/testsuite/gcc.target/i386/pr36502.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/i386/darwin.h
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/testsuite/gcc.dg/stack-usage-1.c
    trunk/gcc/testsuite/gcc.target/i386/builtin-unreachable.c


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36502