[Bug target/66866] [miscompile] incorrect load address on manual vector shuffle

[uros at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66866

--- Comment #8 from uros at gcc dot gnu.org ---
Author: uros
Date: Wed Jul 15 22:20:17 2015
New Revision: 225852

URL: https://gcc.gnu.org/viewcvs?rev=225852&root=gcc&view=rev
Log:
        PR target/66866
        * config/i386/i386-protos.h (ix86_expand_pextr): New prototype.
        * config/i386/i386.c (ix86_expand_pextr): New function.
        (ix86_expand_pinsr): Handle V1TI and TI modes.  Call ix86_expand_pextr
        for non-lowpart subregs.
        * config/i386/i386.md (extzv<mode>): Expand with ix86_expand_pextr.
        (insv<mode>): Use SWI248 mode iterator.
        (insv<mode>_1): Ditto.

testsuite/ChangeLog:

        PR target/66866
        * g++.dg/pr66866.C: New test.


Added:
    trunk/gcc/testsuite/g++.dg/pr66866.C
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/i386/i386-protos.h
    trunk/gcc/config/i386/i386.c
    trunk/gcc/config/i386/i386.md
    trunk/gcc/testsuite/ChangeLog