[Bug target/26915] missed sized opt returning -1.0

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

------- Comment #6 from uros at gcc dot gnu dot org  2006-11-04 23:12 -------
Subject: Bug 26915

Author: uros
Date: Sat Nov  4 23:12:16 2006
New Revision: 118484

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=118484
Log:
        PR target/26915
        * config/i386/i386.c (standard_80387_constant_p): Treat -0.0 and -1.0
        as a valid 80387 constant.
        (standard_80387_constant_opcode): Return "#" for -0.0 and -1.0.
        * config/i386/i386.md (unnamed splitter): Split the load of
        constant -0.0 or -1.0  into the load of 0.0 or 1.0, followed
        by negation.

testsuite/ChangeLog:

        PR target/26915
        * gcc.target/i386/387-12.c: New test.
~

Added:
    trunk/gcc/testsuite/gcc.target/i386/387-12.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/i386/i386.c
    trunk/gcc/config/i386/i386.md
    trunk/gcc/testsuite/ChangeLog


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26915