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| author | rguenth <rguenth@138bc75d-0d04-0410-961f-82ee72b054a4> | 2007-04-22 11:26:49 +0000 |
|---|---|---|
| committer | rguenth <rguenth@138bc75d-0d04-0410-961f-82ee72b054a4> | 2007-04-22 11:26:49 +0000 |
| commit | 790963ba44baf09182e90c5ed2238ffc0724f2f9 (patch) | |
| tree | 989716dba1a060e7c03260037932273b5ed3d9a2 /libjava/classpath/lib/java | |
| parent | db84bdf218ed79d7b40c473d3da1900826d13bd9 (diff) | |
| download | ppe42-gcc-790963ba44baf09182e90c5ed2238ffc0724f2f9.tar.gz ppe42-gcc-790963ba44baf09182e90c5ed2238ffc0724f2f9.zip | |
2007-04-22 Richard Guenther <rguenther@suse.de>
PR tree-optimization/29789
* tree-ssa-loop-im.c (stmt_cost): Adjust cost of shifts.
(rewrite_reciprocal): New helper split out from
determine_invariantness_stmt.
(rewrite_bittest): Likewise.
(determine_invariantness_stmt): Rewrite (A >> B) & 1 to
A & (1 << B) if (1 << B) is loop invariant but (A >> B)
is not.
* gcc.dg/tree-ssa/ssa-lim-1.c: New testcase.
* gcc.dg/tree-ssa/ssa-lim-2.c: Likewise.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@124042 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'libjava/classpath/lib/java')
0 files changed, 0 insertions, 0 deletions
