diff options
Diffstat (limited to 'gcc/combine.c')
| -rw-r--r-- | gcc/combine.c | 27 |
1 files changed, 1 insertions, 26 deletions
diff --git a/gcc/combine.c b/gcc/combine.c index e3c8209..de3afcc 100644 --- a/gcc/combine.c +++ b/gcc/combine.c @@ -9674,31 +9674,6 @@ reg_num_sign_bit_copies_for_combine (const_rtx x, enum machine_mode mode, return NULL; } -/* Return the number of "extended" bits there are in X, when interpreted - as a quantity in MODE whose signedness is indicated by UNSIGNEDP. For - unsigned quantities, this is the number of high-order zero bits. - For signed quantities, this is the number of copies of the sign bit - minus 1. In both case, this function returns the number of "spare" - bits. For example, if two quantities for which this function returns - at least 1 are added, the addition is known not to overflow. - - This function will always return 0 unless called during combine, which - implies that it must be called from a define_split. */ - -unsigned int -extended_count (const_rtx x, enum machine_mode mode, int unsignedp) -{ - if (nonzero_sign_valid == 0) - return 0; - - return (unsignedp - ? (HWI_COMPUTABLE_MODE_P (mode) - ? (unsigned int) (GET_MODE_PRECISION (mode) - 1 - - floor_log2 (nonzero_bits (x, mode))) - : 0) - : num_sign_bit_copies (x, mode) - 1); -} - /* This function is called from `simplify_shift_const' to merge two outer operations. Specifically, we have already found that we need to perform operation *POP0 with constant *PCONST0 at the outermost @@ -13912,7 +13887,7 @@ unmentioned_reg_p (rtx equiv, rtx expr) return for_each_rtx (&equiv, unmentioned_reg_p_1, expr); } -void +DEBUG_FUNCTION void dump_combine_stats (FILE *file) { fprintf |