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| author | Jakub Jelinek <jakub@redhat.com> | 2013-05-13 13:04:26 +0200 |
|---|---|---|
| committer | Jakub Jelinek <jakub@gcc.gnu.org> | 2013-05-13 13:04:26 +0200 |
| commit | ae6fa899e7000352aa8573a23b1e92c225337ea1 (patch) | |
| tree | 6346bea605532f76d3b46ee9bfb0d6588ee811de /gcc/ChangeLog | |
| parent | 4502fe8dfcb1cc2c59b50b868ac75fb5cdd742fc (diff) | |
| download | gcc-ae6fa899e7000352aa8573a23b1e92c225337ea1.tar.gz | |
re PR tree-optimization/45216 (Rotate expressions not recognized at tree level)
PR tree-optimization/45216
PR tree-optimization/57157
* tree-ssa-forwprop.c (simplify_rotate): Only recognize
the (-Y) & (B - 1) variant if OP is |.
* expmed.c (expand_shift_1): For rotations by const0_rtx just
return shifted. Use (-op1) & (prec - 1) as other_amount
instead of prec - op1.
* c-c++-common/rotate-1.c: Add 32 tests with +.
* c-c++-common/rotate-1a.c: Adjust.
* c-c++-common/rotate-2.c: Add 32 tests with +, expect
only 48 rotates.
* c-c++-common/rotate-2b.c: New test.
* c-c++-common/rotate-3.c: Add 32 tests with +.
* c-c++-common/rotate-4.c: Add 32 tests with +, expect
only 48 rotates.
* c-c++-common/rotate-4b.c: New test.
* c-c++-common/rotate-5.c: New test.
From-SVN: r198823
Diffstat (limited to 'gcc/ChangeLog')
| -rw-r--r-- | gcc/ChangeLog | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 8a3a7338789..785b0907e3f 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,13 @@ +2013-05-13 Jakub Jelinek <jakub@redhat.com> + + PR tree-optimization/45216 + PR tree-optimization/57157 + * tree-ssa-forwprop.c (simplify_rotate): Only recognize + the (-Y) & (B - 1) variant if OP is |. + * expmed.c (expand_shift_1): For rotations by const0_rtx just + return shifted. Use (-op1) & (prec - 1) as other_amount + instead of prec - op1. + 2013-05-13 Martin Jambor <mjambor@suse.cz> PR middle-end/42371 |