diff options
Diffstat (limited to 'gcc/fold-const.c')
| -rw-r--r-- | gcc/fold-const.c | 44 |
1 files changed, 0 insertions, 44 deletions
diff --git a/gcc/fold-const.c b/gcc/fold-const.c index e85ead8..893aacc 100644 --- a/gcc/fold-const.c +++ b/gcc/fold-const.c @@ -9700,50 +9700,6 @@ tree_expr_nonzero_p (tree t) return false; } -/* Return true if `r' is known to be non-negative. - Only handles constants at the moment. */ - -int -rtl_expr_nonnegative_p (rtx r) -{ - switch (GET_CODE (r)) - { - case CONST_INT: - return INTVAL (r) >= 0; - - case CONST_DOUBLE: - if (GET_MODE (r) == VOIDmode) - return CONST_DOUBLE_HIGH (r) >= 0; - return 0; - - case CONST_VECTOR: - { - int units, i; - rtx elt; - - units = CONST_VECTOR_NUNITS (r); - - for (i = 0; i < units; ++i) - { - elt = CONST_VECTOR_ELT (r, i); - if (!rtl_expr_nonnegative_p (elt)) - return 0; - } - - return 1; - } - - case SYMBOL_REF: - case LABEL_REF: - /* These are always nonnegative. */ - return 1; - - default: - return 0; - } -} - - /* See if we are applying CODE, a relational to the highest or lowest possible integer of TYPE. If so, then the result is a compile time constant. */ |