[Bug rtl-optimization/53352] Incorrect CSE optimization on RTL expressions with a paradoxical subreg

[rsandifo at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53352

--- Comment #9 from rsandifo at gcc dot gnu.org <rsandifo at gcc dot gnu.org> 
2012-05-18 09:04:47 UTC ---
Author: rsandifo
Date: Fri May 18 09:04:38 2012
New Revision: 187648

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=187648
Log:
gcc/
2012-05-15  Meador Inge  <mead...@codesourcery.com>

    PR rtl-optimization/53352
    * cse.c (equiv_constant): Ignore paradoxical subregs.

gcc/testsuite/
2012-05-15  Meador Inge  <mead...@codesourcery.com>

    PR rtl-optimization/53352
    * gcc.dg/pr53352.c: New test.

Added:
    trunk/gcc/testsuite/gcc.dg/pr53352.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/cse.c
    trunk/gcc/testsuite/ChangeLog