[Bug tree-optimization/32383] [4.3 regression] ICE with reciprocals and -ffast-math

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

------- Comment #3 from uros at gcc dot gnu dot org  2007-06-18 08:31 -------
Subject: Bug 32383

Author: uros
Date: Mon Jun 18 08:30:47 2007
New Revision: 125790

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=125790
Log:
        PR tree-optimization/32383
        * targhooks.c (default_builtin_reciprocal): Add new bool argument.
        * targhooks.h (default_builtin_reciprocal): Update prototype.
        * target.h (struct gcc_target): Update builtin_reciprocal.
        * doc/tm.texi (TARGET_BUILTIN_RECIPROCAL): Update description.
        * tree-ssa-math-opts (execute_cse_reciprocals): Skip statements
        where arg1 is not SSA_NAME.  Pass true to targetm.builtin_reciprocal
        when fndecl is in BUILT_IN_MD class.
        (execute_convert_to_rsqrt): Ditto.

        * config/i386/i386.c (ix86_builtin_reciprocal): Update for new bool
        argument.  Convert IX86_BUILTIN_SQRTPS code only when md_fn is true.
        Convert BUILT_IN_SQRTF code only  when md_fn is false.

testsuite/ChangeLog:

        PR tree-optimization/32383
        * testsuite/g++.dg/opt/pr32383.C: New test.


Added:
    trunk/gcc/testsuite/g++.dg/opt/pr32383.C
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/i386/i386.c
    trunk/gcc/doc/tm.texi
    trunk/gcc/target.h
    trunk/gcc/targhooks.c
    trunk/gcc/targhooks.h
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-ssa-math-opts.c


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32383