| commit | d8a99c1725ef11f24d3fdc97c4076af4d2071031 | |
| author | rakdver <rakdver@138bc75d-0d04-0410-961f-82ee72b054a4> | |
| Thu, 15 Jun 2006 09:42:03 +0000 (15 09:42 +0000) | ||
| committer | rakdver <rakdver@138bc75d-0d04-0410-961f-82ee72b054a4> | |
| Thu, 15 Jun 2006 09:42:03 +0000 (15 09:42 +0000) | ||
| tree | 85c42d4a341bc337e0b43abae07320d96c49e60f | treesnapshot (tar.gz zip) |
| parent | c81c13fbb2afca2bf70bae0d119449db5aa2e621 | commitdiff |
* tree-ssa-loop-niter.c (implies_nonnegative_p): New function.
(derive_constant_upper_bound): Derive more precise upper bound in
common cases. Return type changed to double_int.
(record_estimate): Reflect the changed return type of
derive_constant_upper_bound.
* double-int.c (double_int_zext, double_int_sext): Fix.
* gcc.dg/tree-ssa/loop-18.c: New test.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@114674 138bc75d-0d04-0410-961f-82ee72b054a4
(derive_constant_upper_bound): Derive more precise upper bound in
common cases. Return type changed to double_int.
(record_estimate): Reflect the changed return type of
derive_constant_upper_bound.
* double-int.c (double_int_zext, double_int_sext): Fix.
* gcc.dg/tree-ssa/loop-18.c: New test.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@114674 138bc75d-0d04-0410-961f-82ee72b054a4