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

[jakub at gcc dot gnu.org]

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

--- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> 2010-12-07 
15:33:02 UTC ---
Author: jakub
Date: Tue Dec  7 15:32:58 2010
New Revision: 167551

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=167551
Log:
    Backport from mainline
    2010-12-06  Jakub Jelinek  <ja...@redhat.com>

    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:
    branches/gcc-4_5-branch/gcc/testsuite/gcc.target/ia64/pr43897.c
Modified:
    branches/gcc-4_5-branch/gcc/ChangeLog
    branches/gcc-4_5-branch/gcc/config/ia64/ia64.c
    branches/gcc-4_5-branch/gcc/testsuite/ChangeLog