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Diffstat (limited to 'gcc/tree-vect-patterns.c')
| -rw-r--r-- | gcc/tree-vect-patterns.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/gcc/tree-vect-patterns.c b/gcc/tree-vect-patterns.c index 4138d41..11a5019 100644 --- a/gcc/tree-vect-patterns.c +++ b/gcc/tree-vect-patterns.c @@ -991,6 +991,11 @@ vect_operation_fits_smaller_type (gimple stmt, tree def, tree *new_type, || TREE_CODE (const_oprnd) != INTEGER_CST) return false; + /* If oprnd has other uses besides that in stmt we cannot mark it + as being part of a pattern only. */ + if (!has_single_use (oprnd)) + return false; + /* If we are in the middle of a sequence, we use DEF from a previous statement. Otherwise, OPRND has to be a result of type promotion. */ if (*new_type) |