[Bug target/65810] powerpc64 alignment of r2 insufficient for loading long-double constants

[amodra at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65810

--- Comment #7 from Alan Modra <amodra at gcc dot gnu.org> ---
Author: amodra
Date: Tue Apr 28 03:47:19 2015
New Revision: 222498

URL: https://gcc.gnu.org/viewcvs?rev=222498&root=gcc&view=rev
Log:
        PR target/65810
        * config/rs6000/rs6000.c (POWERPC64_TOC_POINTER_ALIGNMENT): Define.
        (offsettable_ok_by_alignment): Use minimum of decl and toc
        pointer alignment.  Replace dead code with assertion.
        (use_toc_relative_ref): Add mode arg.  Return false in -mcmodel=medium
        case if size exceeds toc pointer alignment.
        (rs6000_legitimize_reload_address): Update use_toc_relative_ref call.
        (rs6000_emit_move): Likewise.
        * configure.ac: Add linker toc pointer alignment check.
        * configure: Regenerate.
        * config.in: Regenerate.


Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config.in
    trunk/gcc/config/rs6000/rs6000.c
    trunk/gcc/configure
    trunk/gcc/configure.ac