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Subject: [Bug rtl-optimization/19398] secondary reloads don't consider "m" alternatives
Date: Tue, 20 Nov 2012 18:03:00 -0000
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X-Bugzilla-Component: rtl-optimization
X-Bugzilla-Keywords: missed-optimization, ra
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19398

--- Comment #14 from uros at gcc dot gnu.org 2012-11-20 18:02:49 UTC ---
Author: uros
Date: Tue Nov 20 18:02:36 2012
New Revision: 193671

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=193671
Log:
2012-11-20  Uros Bizjak  <ubizjak@gmail.com>

    * config/i386/i386.md (fix_trunc<MODEF:mode><SWI48:mode>_sse): Macroize
    insn from fix_trunc<mode>{si,di}_sse using SWI48 mode iterator.
    (peephole2 to avoid vector decoded forms): Macroize peephole2
    using MODEF mode iterator.  Use SWI48 mode iterator instead of SWI48x.

2012-11-20  Uros Bizjak  <ubizjak@gmail.com>

    PR target/19398
    * config/i386/i386.md
    (peephole2 to shorten x87->SSE reload sequences): Remove peephole2.
    * config/i386/i386.h (enum ix86_tune_indices)
    <IX86_TUNE_SHORTEN_X87_SSE>: Remove.
    * config/i386/i386.h (initial_ix86_tune_features): Update.

2012-11-20  Vladimir Makarov  <vmakarov@redhat.com>

    PR target/19398
    * lra-constraints.c (process_alt_operands): Discourage reloads
    through secodnary memory.

testsuite/ChangeLog:

2012-11-20  Uros Bizjak  <ubizjak@gmail.com>

    PR target/19398
    * gcc.target/i386/pr19398.c: New test.


Added:
    trunk/gcc/testsuite/gcc.target/i386/pr19398.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/i386/i386.c
    trunk/gcc/config/i386/i386.h
    trunk/gcc/config/i386/i386.md
    trunk/gcc/lra-constraints.c
    trunk/gcc/testsuite/ChangeLog