[Bug tree-optimization/43220] [4.3/4.4 Regression] Paritially optimized __builtin_save_stack/__builtin_restore_stack causes segmentation fault

[rguenth at gcc dot gnu dot org]

------- Comment #4 from rguenth at gcc dot gnu dot org  2010-03-01 16:57 -------
Subject: Bug 43220

Author: rguenth
Date: Mon Mar  1 16:57:02 2010
New Revision: 157149

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=157149
Log:
2010-03-01  Richard Guenther  <rguent...@suse.de>

        PR tree-optimization/43220
        * tree-ssa-ccp.c (optimize_stack_restore): Do not optimize
        BUILT_IN_STACK_{SAVE,RESTORE} around alloca.

        * gcc.c-torture/execute/pr43220.c: New testcase.

Added:
    trunk/gcc/testsuite/gcc.c-torture/execute/pr43220.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-ssa-ccp.c


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43220