From: Richard Sandiford <richard.sandiford@arm.com>
To: gcc-patches@gcc.gnu.org
Subject: [22/67] Replace !VECTOR_MODE_P with is_a <scalar_int_mode>
Date: Fri, 09 Dec 2016 13:07:00 -0000 [thread overview]
Message-ID: <87twadl08e.fsf@e105548-lin.cambridge.arm.com> (raw)
In-Reply-To: <87h96dp8u6.fsf@e105548-lin.cambridge.arm.com> (Richard Sandiford's message of "Fri, 09 Dec 2016 12:48:01 +0000")
This patch replaces some checks of !VECTOR_MODE_P with checks
of is_a <scalar_int_mode>, in cases where the scalar integer
modes were the only useful alternatives left.
gcc/
2016-11-24 Richard Sandiford <richard.sandiford@arm.com>
Alan Hayward <alan.hayward@arm.com>
David Sherwood <david.sherwood@arm.com>
* simplify-rtx.c (simplify_binary_operation_1): Use
is_a <scalar_int_mode> instead of !VECTOR_MODE_P.
diff --git a/gcc/simplify-rtx.c b/gcc/simplify-rtx.c
index cb0e43d..e5e7a71 100644
--- a/gcc/simplify-rtx.c
+++ b/gcc/simplify-rtx.c
@@ -2124,7 +2124,7 @@ simplify_binary_operation_1 (enum rtx_code code, machine_mode mode,
rtx tem, reversed, opleft, opright;
HOST_WIDE_INT val;
unsigned int width = GET_MODE_PRECISION (mode);
- scalar_int_mode int_mode;
+ scalar_int_mode int_mode, inner_mode;
/* Even if we can't compute a constant result,
there are some cases worth simplifying. */
@@ -3357,27 +3357,24 @@ simplify_binary_operation_1 (enum rtx_code code, machine_mode mode,
(subreg:M1 (ashiftrt:M2 (reg:M2) (const_int <c1 + c2>))
<low_part>). */
if (code == ASHIFTRT
- && !VECTOR_MODE_P (mode)
+ && is_a <scalar_int_mode> (mode, &int_mode)
&& SUBREG_P (op0)
&& CONST_INT_P (op1)
&& GET_CODE (SUBREG_REG (op0)) == LSHIFTRT
- && !VECTOR_MODE_P (GET_MODE (SUBREG_REG (op0)))
+ && is_a <scalar_int_mode> (GET_MODE (SUBREG_REG (op0)),
+ &inner_mode)
&& CONST_INT_P (XEXP (SUBREG_REG (op0), 1))
- && (GET_MODE_BITSIZE (GET_MODE (SUBREG_REG (op0)))
- > GET_MODE_BITSIZE (mode))
+ && GET_MODE_BITSIZE (inner_mode) > GET_MODE_BITSIZE (int_mode)
&& (INTVAL (XEXP (SUBREG_REG (op0), 1))
- == (GET_MODE_BITSIZE (GET_MODE (SUBREG_REG (op0)))
- - GET_MODE_BITSIZE (mode)))
+ == GET_MODE_BITSIZE (inner_mode) - GET_MODE_BITSIZE (int_mode))
&& subreg_lowpart_p (op0))
{
rtx tmp = GEN_INT (INTVAL (XEXP (SUBREG_REG (op0), 1))
+ INTVAL (op1));
- machine_mode inner_mode = GET_MODE (SUBREG_REG (op0));
- tmp = simplify_gen_binary (ASHIFTRT,
- GET_MODE (SUBREG_REG (op0)),
+ tmp = simplify_gen_binary (ASHIFTRT, inner_mode,
XEXP (SUBREG_REG (op0), 0),
tmp);
- return lowpart_subreg (mode, tmp, inner_mode);
+ return lowpart_subreg (int_mode, tmp, inner_mode);
}
canonicalize_shift:
if (SHIFT_COUNT_TRUNCATED && CONST_INT_P (op1))
next prev parent reply other threads:[~2016-12-09 13:07 UTC|newest]
Thread overview: 79+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-12-09 12:48 [0/67] Add wrapper classes for machine_modes Richard Sandiford
2016-12-09 12:50 ` [1/67] Add an E_ prefix to mode names and update case statements Richard Sandiford
2016-12-09 12:52 ` [2/67] Make machine_mode a class Richard Sandiford
2016-12-15 22:34 ` Trevor Saunders
2016-12-09 12:53 ` [3/67] Add GDB pretty printer for machine mode classes Richard Sandiford
2016-12-09 12:54 ` [4/67] Add FOR_EACH iterators for modes Richard Sandiford
2016-12-09 12:55 ` [6/67] Make GET_MODE_WIDER return an opt_mode Richard Sandiford
2016-12-09 12:55 ` [5/67] Small tweak to array_value_type Richard Sandiford
2016-12-09 12:57 ` [8/67] Simplify gen_trunc/extend_conv_libfunc Richard Sandiford
2016-12-09 12:57 ` [7/67] Add scalar_float_mode Richard Sandiford
2016-12-09 14:19 ` David Malcolm
2016-12-09 14:30 ` Richard Sandiford
2016-12-09 12:58 ` [9/67] Add SCALAR_FLOAT_TYPE_MODE Richard Sandiford
2016-12-09 12:59 ` [10/67] Make assemble_real take a scalar_float_mode Richard Sandiford
2016-12-09 13:00 ` [0/67] Add wrapper classes for machine_modes Richard Biener
2016-12-09 13:54 ` Richard Sandiford
2016-12-09 13:00 ` [12/67] Use opt_scalar_float_mode when iterating over float modes Richard Sandiford
2016-12-09 13:00 ` [11/67] Add a float_mode_for_size helper function Richard Sandiford
2016-12-09 13:01 ` [13/67] Make floatn_mode return an opt_scalar_float_mode Richard Sandiford
2016-12-09 13:02 ` [14/67] Make libgcc_floating_mode_supported_p take a scalar_float_mode Richard Sandiford
2016-12-09 13:03 ` [16/67] Add scalar_int_mode_pod Richard Sandiford
2016-12-09 13:03 ` [15/67] Add scalar_int_mode Richard Sandiford
2016-12-09 13:04 ` [17/67] Add an int_mode_for_size helper function Richard Sandiford
2016-12-09 13:05 ` [19/67] Add a smallest_int_mode_for_size " Richard Sandiford
2016-12-09 13:05 ` [18/67] Make int_mode_for_mode return an opt_scalar_int_mode Richard Sandiford
2016-12-09 13:06 ` [20/67] Replace MODE_INT checks with is_int_mode Richard Sandiford
2016-12-09 13:07 ` [21/67] Replace SCALAR_INT_MODE_P checks with is_a <scalar_int_mode> Richard Sandiford
2016-12-09 13:07 ` Richard Sandiford [this message]
2016-12-09 13:08 ` [24/67] Replace a != BLKmode check " Richard Sandiford
2016-12-09 13:22 ` Richard Biener
2016-12-09 14:42 ` Richard Sandiford
2016-12-09 13:08 ` [23/67] Replace != VOIDmode checks " Richard Sandiford
2016-12-09 13:09 ` [25/67] Use is_a <scalar_int_mode> for bitmask optimisations Richard Sandiford
2016-12-09 13:10 ` [27/67] Use is_a <scalar_int_mode> before LOAD_EXTEND_OP Richard Sandiford
2016-12-09 13:10 ` [26/67] Use is_a <scalar_int_mode> in subreg/extract simplifications Richard Sandiford
2016-12-09 13:11 ` [28/67] Use is_a <scalar_int_mode> for miscellaneous types of test Richard Sandiford
2016-12-09 13:12 ` [30/67] Use scalar_int_mode for doubleword splits Richard Sandiford
2016-12-09 13:12 ` [29/67] Make some *_loc_descriptor helpers take scalar_int_mode Richard Sandiford
2016-12-09 13:13 ` [31/67] Use scalar_int_mode for move2add Richard Sandiford
2016-12-09 13:14 ` [33/67] Add a NARROWEST_INT_MODE macro Richard Sandiford
2016-12-09 13:14 ` [32/67] Check is_a <scalar_int_mode> before calling valid_pointer_mode Richard Sandiford
2016-12-09 13:15 ` [34/67] Add a SCALAR_INT_TYPE_MODE macro Richard Sandiford
2016-12-09 13:16 ` [36/67] Use scalar_int_mode in the RTL iv routines Richard Sandiford
2016-12-09 13:16 ` [35/67] Add uses of as_a <scalar_int_mode> Richard Sandiford
2016-12-09 13:17 ` [38/67] Move SCALAR_INT_MODE_P out of strict_volatile_bitfield_p Richard Sandiford
2016-12-09 13:17 ` [37/67] Use scalar_int_mode when emitting cstores Richard Sandiford
2016-12-09 13:18 ` [39/67] Two changes to the get_best_mode interface Richard Sandiford
2016-12-09 13:19 ` [40/67] Use scalar_int_mode for extraction_insn fields Richard Sandiford
2016-12-09 13:20 ` [42/67] Use scalar_int_mode in simplify_shift_const_1 Richard Sandiford
2016-12-09 13:20 ` [41/67] Split scalar integer handling out of force_to_mode Richard Sandiford
2016-12-09 13:22 ` [43/67] Use scalar_int_mode in simplify_comparison Richard Sandiford
2016-12-09 13:22 ` [44/67] Make simplify_and_const_int take a scalar_int_mode Richard Sandiford
2016-12-09 13:23 ` [45/67] Make extract_left_shift " Richard Sandiford
2016-12-09 13:23 ` [46/67] Make widest_int_mode_for_size return " Richard Sandiford
2016-12-09 13:24 ` [47/67] Make subroutines of nonzero_bits operate on scalar_int_mode Richard Sandiford
2016-12-09 13:25 ` [49/67] Simplify nonzero/num_sign_bits hooks Richard Sandiford
2016-12-09 13:25 ` [48/67] Make subroutines of num_sign_bit_copies operate on scalar_int_mode Richard Sandiford
2016-12-09 13:28 ` [50/67] Add helper routines for SUBREG_PROMOTED_VAR_P subregs Richard Sandiford
2016-12-09 13:30 ` [51/67] Use opt_scalar_int_mode when iterating over integer modes Richard Sandiford
2016-12-09 13:30 ` [52/67] Use scalar_int_mode in extract/store_bit_field Richard Sandiford
2016-12-09 13:31 ` [53/67] Pass a mode to const_scalar_mask_from_tree Richard Sandiford
2016-12-09 13:31 ` [54/67] Add explicit int checks for alternative optab implementations Richard Sandiford
2016-12-09 13:33 ` [55/67] Use scalar_int_mode in simplify_const_unary_operation Richard Sandiford
2016-12-09 13:33 ` [56/67] Use the more specific type when two modes are known to be equal Richard Sandiford
2016-12-09 13:34 ` [57/67] Use scalar_int_mode in expand_expr_addr_expr Richard Sandiford
2016-12-09 13:35 ` [58/67] Use scalar_int_mode in a try_combine optimisation Richard Sandiford
2016-12-09 13:36 ` [60/67] Pass scalar_int_modes to do_jump_by_parts_* Richard Sandiford
2016-12-09 13:36 ` [59/67] Add a rtx_jump_table_data::get_data_mode helper Richard Sandiford
2016-12-09 13:37 ` [61/67] Use scalar_int_mode in the AArch64 port Richard Sandiford
2016-12-09 13:38 ` [63/67] Simplifications after type switch Richard Sandiford
2016-12-09 13:38 ` [62/67] Big machine_mode to scalar_int_mode replacement Richard Sandiford
2016-12-09 13:40 ` [64/67] Add a scalar_mode class Richard Sandiford
2016-12-09 13:40 ` [66/67] Add a scalar_mode_pod class Richard Sandiford
2016-12-09 13:40 ` [65/67] Use scalar_mode in the AArch64 port Richard Sandiford
2016-12-09 13:41 ` [67/67] Add a complex_mode class Richard Sandiford
2016-12-09 18:20 ` [0/67] Add wrapper classes for machine_modes Sandra Loosemore
2017-05-05 7:08 ` Jeff Law
2017-05-24 14:33 ` Richard Sandiford
2017-06-28 17:27 ` Jeff Law
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