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[Bug target/24779] [4.0 Regression] Python miscompilation - TOC reload



------- Comment #12 from amodra at gcc dot gnu dot org  2005-11-18 05:55 -------
Subject: Bug 24779

Author: amodra
Date: Fri Nov 18 05:55:16 2005
New Revision: 107160

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=107160
Log:
        PR target/24779
        Backport 2005-03-13  David Edelsohn  <edelsohn@gnu.org>,
        2005-03-20  David Edelsohn  <edelsohn@gnu.org>,
        2005-03-24  David Edelsohn  <edelsohn@gnu.org>,
        2005-09-11  David Edelsohn  <edelsohn@gnu.org>
        * config/rs6000/rs6000.c (easy_fp_constant): SFmode constant
        0.0f is easy.  Return 0 for SFmode and DFmode before reload when
        flag_unsafe_math_optimizations not enabled.
        (reg_or_none500mem_operand): New predicate.
        (zero_reg_mem_operand): New predicate.
        (rs6000_generate_compare): Test flag_finite_math_only, not
        flag_unsafe_math_optimizations.
        * config/rs6000/rs6000.h (PREDICATES): Add zero_reg_mem_operand
        and reg_or_none500mem_operand.
        * config/rs6000/rs6000-protos.h (zero_reg_mem_operand): Prototype.
        (reg_or_none500mem_operand): Likewise.
        * config/rs6000/rs6000.md (extendsfdf2): Change operand1 predicate
        to reg_or_none500mem_operand.
        (extendsfdf2_fpr): Add MEM alternative.
        (movdf splitter): Use const_double_operand predicate.
        (extenddftf2_internal): Change operand2 predicate to
        zero_reg_mem_operand.


Modified:
    branches/gcc-4_0-branch/gcc/ChangeLog
    branches/gcc-4_0-branch/gcc/config/rs6000/rs6000-protos.h
    branches/gcc-4_0-branch/gcc/config/rs6000/rs6000.c
    branches/gcc-4_0-branch/gcc/config/rs6000/rs6000.h
    branches/gcc-4_0-branch/gcc/config/rs6000/rs6000.md


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24779


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