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| author | Jakub Jelinek <jakub@redhat.com> | 2019-02-06 10:16:19 +0100 |
|---|---|---|
| committer | Jakub Jelinek <jakub@gcc.gnu.org> | 2019-02-06 10:16:19 +0100 |
| commit | 4763581763de6049c938ea7129d738d497004a06 (patch) | |
| tree | 36db92da41720345c8b90ec4dd599bb527a46a17 /gcc/fold-const-call.c | |
| parent | ce4321c918aa0d17ecd7da6c3deb43524b1729cf (diff) | |
| download | gcc-4763581763de6049c938ea7129d738d497004a06.zip gcc-4763581763de6049c938ea7129d738d497004a06.tar.gz gcc-4763581763de6049c938ea7129d738d497004a06.tar.bz2 | |
re PR middle-end/89210 (ICE tree check: expected integer_cst, have real_cst in to_wide, at tree.h:5600)
PR middle-end/89210
* fold-const-call.c (fold_const_vec_convert): Pass true as last
operand to new_unary_operation only if both element types are integral
and it isn't a widening conversion. Return NULL_TREE if
new_unary_operation failed.
* c-c++-common/builtin-convertvector-2.c: New test.
From-SVN: r268573
Diffstat (limited to 'gcc/fold-const-call.c')
| -rw-r--r-- | gcc/fold-const-call.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/gcc/fold-const-call.c b/gcc/fold-const-call.c index 439043a..702c8b4 100644 --- a/gcc/fold-const-call.c +++ b/gcc/fold-const-call.c @@ -665,8 +665,17 @@ fold_const_vec_convert (tree ret_type, tree arg) && SCALAR_FLOAT_TYPE_P (TREE_TYPE (ret_type))) code = FLOAT_EXPR; + /* We can't handle steps directly when extending, since the + values need to wrap at the original precision first. */ + bool step_ok_p + = (INTEGRAL_TYPE_P (TREE_TYPE (ret_type)) + && INTEGRAL_TYPE_P (TREE_TYPE (arg_type)) + && (TYPE_PRECISION (TREE_TYPE (ret_type)) + <= TYPE_PRECISION (TREE_TYPE (arg_type)))); tree_vector_builder elts; - elts.new_unary_operation (ret_type, arg, true); + if (!elts.new_unary_operation (ret_type, arg, step_ok_p)) + return NULL_TREE; + unsigned int count = elts.encoded_nelts (); for (unsigned int i = 0; i < count; ++i) { |