[Bug rtl-optimization/23098] [4.1 Regression] store of 0.0 to float

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

------- Comment #14 from sayle at gcc dot gnu dot org  2005-12-31 00:39 -------
Subject: Bug 23098

Author: sayle
Date: Sat Dec 31 00:39:42 2005
New Revision: 109192

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=109192
Log:

        PR target/25213
        Backport from mainline
        2005-09-06  Jakub Jelinek  <jakub@redhat.com>

        PR rtl-optimization/23098
        * cse.c (fold_rtx_mem): Call delegitimize_address target hook.
        * simplify-rtx.c (constant_pool_reference_p): New function.
        * rtl.h (constant_pool_reference_p): New prototype.
        * config/i386/i386.md (pushf split, mov[sdx]f split): Use
        constant_pool_reference_p in condition and
        avoid_constant_pool_reference in preparation statements.

        * gcc.dg/pr23098.c: Backport testcase from mainline.


Added:
    branches/gcc-3_4-branch/gcc/testsuite/gcc.dg/pr23098.c
Modified:
    branches/gcc-3_4-branch/gcc/ChangeLog
    branches/gcc-3_4-branch/gcc/config/i386/i386.md
    branches/gcc-3_4-branch/gcc/cse.c
    branches/gcc-3_4-branch/gcc/rtl.h
    branches/gcc-3_4-branch/gcc/simplify-rtx.c
    branches/gcc-3_4-branch/gcc/testsuite/ChangeLog


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23098