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gcc:
authorbonzini <bonzini@138bc75d-0d04-0410-961f-82ee72b054a4>
Thu, 21 Jul 2005 07:24:34 +0000 (07:24 +0000)
committerbonzini <bonzini@138bc75d-0d04-0410-961f-82ee72b054a4>
Thu, 21 Jul 2005 07:24:34 +0000 (07:24 +0000)
commit7e3cc6817ae6be36340eb0c1978c1b3210cab69e
tree1ae11d72157fada15be9c9e63cd5c9c48811abca
parenta195a2e0542f43ead546c488f0f7e687d2837570
gcc:
2005-07-21  Paolo Bonzini  <bonzini@gnu.org>
            Zdenek Dvorak  <dvorakz@suse.cz>

PR tree-optimization/19210
* common.opt (Wunsafe-loop-optimizations, funsafe-loop-optimizations):
New.
* Makefile.in (tree-ssa-loop-niter.o): Depend intl.o.
* loop-iv.c (get_simple_loop_desc): If -funsafe-loop-optimizations,
rely on unproven assumptions.
* predict.c (predict_loops): Adjust call to number_of_iterations_exit.
* tree-flow.h (number_of_iterations_exit): Add final parameter.
* tree-scalar-evolution.c (number_of_iterations_in_loop): Adjust call
to number_of_iterations_exit.
* tree-ssa-loop-ivcanon.c (empty_loop_p): Likewise.
* tree-ssa-loop-ivopts.c (niter_for_exit): Likewise.
* tree-ssa-loop-niter.c (find_loop_niter,
estimate_numbers_of_iterations_loop): Likewise.
(number_of_iterations_exit): Honor the new options.
* doc/invoke.texi (Wunsafe-loop-optimizations,
funsafe-loop-optimizations): Document them.

gcc/testsuite:
2005-07-21  Paolo Bonzini  <bonzini@gnu.org>

        * gcc.dg/tree-ssa/pr19210-1.c: New.
        * gcc.dg/tree-ssa/pr19210-2.c: New.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@102225 138bc75d-0d04-0410-961f-82ee72b054a4
14 files changed:
gcc/ChangeLog
gcc/Makefile.in
gcc/common.opt
gcc/doc/invoke.texi
gcc/loop-iv.c
gcc/predict.c
gcc/testsuite/ChangeLog
gcc/testsuite/gcc.dg/tree-ssa/pr19210-1.c [new file with mode: 0644]
gcc/testsuite/gcc.dg/tree-ssa/pr19210-2.c [new file with mode: 0644]
gcc/tree-flow.h
gcc/tree-scalar-evolution.c
gcc/tree-ssa-loop-ivcanon.c
gcc/tree-ssa-loop-ivopts.c
gcc/tree-ssa-loop-niter.c