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| author | Jakub Jelinek <jakub@redhat.com> | 2012-03-29 16:55:53 +0200 |
|---|---|---|
| committer | Jakub Jelinek <jakub@gcc.gnu.org> | 2012-03-29 16:55:53 +0200 |
| commit | b84b294aaf4947356da9d3586f41e625e20ad712 (patch) | |
| tree | 274cc1094842855917f6bd74a09485f76700237e /gcc/tree-vect-slp.c | |
| parent | 37b9a3bd0b517e7c277f255bb4c2a6c52249a4f4 (diff) | |
| download | gcc-b84b294aaf4947356da9d3586f41e625e20ad712.zip gcc-b84b294aaf4947356da9d3586f41e625e20ad712.tar.gz gcc-b84b294aaf4947356da9d3586f41e625e20ad712.tar.bz2 | |
re PR tree-optimization/52760 (Revision 185599 causes miscompare on sphinx3)
PR tree-optimization/52760
* tree-vect-slp.c (vect_get_constant_vectors): Convert constant_p
shift count for {L,R}{SHIFT,ROTATE}_EXPR to TREE_TYPE (vector_type).
* gcc.c-torture/execute/pr52760.c: New test.
From-SVN: r185965
Diffstat (limited to 'gcc/tree-vect-slp.c')
| -rw-r--r-- | gcc/tree-vect-slp.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/gcc/tree-vect-slp.c b/gcc/tree-vect-slp.c index c142bbb..0ab6be0 100644 --- a/gcc/tree-vect-slp.c +++ b/gcc/tree-vect-slp.c @@ -2337,8 +2337,23 @@ vect_get_constant_vectors (tree op, slp_tree slp_node, op = gimple_call_arg (stmt, op_num); break; + case LSHIFT_EXPR: + case RSHIFT_EXPR: + case LROTATE_EXPR: + case RROTATE_EXPR: + op = gimple_op (stmt, op_num + 1); + /* Unlike the other binary operators, shifts/rotates have + the shift count being int, instead of the same type as + the lhs, so make sure the scalar is the right type if + we are dealing with vectors of + long long/long/short/char. */ + if (op_num == 1 && constant_p) + op = fold_convert (TREE_TYPE (vector_type), op); + break; + default: op = gimple_op (stmt, op_num + 1); + break; } } |