[Bug middle-end/53688] [4.8 Regression] 191.fma3d in SPEC CPU 2000 miscompiled

[matz at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53688

--- Comment #4 from Michael Matz <matz at gcc dot gnu.org> 2012-06-21 12:18:31 UTC ---
Author: matz
Date: Thu Jun 21 12:18:23 2012
New Revision: 188852

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=188852
Log:
    PR middle-end/53688
    * builtins.c (get_memory_rtx): Always build an all-aliasing MEM_REF
    with correct size.

testsuite/
    * gcc.c-torture/execute/pr53688.c: New test.

Added:
    trunk/gcc/testsuite/gcc.c-torture/execute/pr53688.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/builtins.c
    trunk/gcc/testsuite/ChangeLog