[Bug target/43897] [4.4/4.5/4.6 Regression] IA-64 asm clobbers are ignored

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43897

--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> 2010-12-06 
19:32:02 UTC ---
Author: jakub
Date: Mon Dec  6 19:31:57 2010
New Revision: 167516

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=167516
Log:
    PR target/43897
    * config/ia64/ia64.c (rtx_needs_barrier): Handle asm CLOBBER
    as a store into that register.

    * gcc.target/ia64/pr43897.c: New test.

Added:
    trunk/gcc/testsuite/gcc.target/ia64/pr43897.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/ia64/ia64.c
    trunk/gcc/testsuite/ChangeLog