[Bug rtl-optimization/47698] CMOV accessing volatile memory with read side effect

[kyukhin at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47698

--- Comment #6 from Kirill Yukhin <kyukhin at gcc dot gnu.org> 2011-11-07 08:42:00 UTC ---
Author: kyukhin
Date: Mon Nov  7 08:41:55 2011
New Revision: 181075

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=181075
Log:
gcc/
    PR rtl-optimization/47698
    * ifconv.c (noce_operand_ok): prevent CMOV generation
    for volatile mem.

gcc/testsuite/
    PR rtl-optimization/47698
    * gcc.target/i386/47698.c: New test.


Added:
    trunk/gcc/testsuite/gcc.target/i386/47698.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/ifcvt.c
    trunk/gcc/testsuite/ChangeLog