[Bug tree-optimization/60577] [4.7/4.8 Regression] inefficient FDO instrumentation code

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60577

--- Comment #8 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Fri Mar 21 11:52:50 2014
New Revision: 208746

URL: http://gcc.gnu.org/viewcvs?rev=208746&root=gcc&view=rev
Log:
2014-03-21  Richard Biener  <rguent...@suse.de>

    PR tree-optimization/60577
    * tree-core.h (struct tree_base): Document nothrow_flag use
    in VAR_DECL_NONALIASED.
    * tree.h (VAR_DECL_NONALIASED): New.
    (may_be_aliased): Adjust.
    * coverage.c (build_var): Set VAR_DECL_NONALIASED.

    * gcc.dg/tree-ssa/ssa-lim-11.c: New testcase.

Added:
    trunk/gcc/testsuite/gcc.dg/tree-ssa/ssa-lim-11.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/coverage.c
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-core.h
    trunk/gcc/tree.h