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Alan Hayward <alan.hayward@arm.com>
David Sherwood <david.sherwood@arm.com>
+ * doc/rtl.texi (const_poly_int): Document. Also document the
+ rtl sharing behavior.
+ * gengenrtl.c (excluded_rtx): Return true for CONST_POLY_INT.
+ * rtl.h (const_poly_int_def): New struct.
+ (rtx_def::u): Add a cpi field.
+ (CASE_CONST_UNIQUE, CASE_CONST_ANY): Add CONST_POLY_INT.
+ (CONST_POLY_INT_P, CONST_POLY_INT_COEFFS): New macros.
+ (wi::rtx_to_poly_wide_ref): New typedef
+ (const_poly_int_value, wi::to_poly_wide, rtx_to_poly_int64)
+ (poly_int_rtx_p): New functions.
+ (trunc_int_for_mode): Declare a poly_int64 version.
+ (plus_constant): Take a poly_int64 instead of a HOST_WIDE_INT.
+ (immed_wide_int_const): Take a poly_wide_int_ref rather than
+ a wide_int_ref.
+ (strip_offset): Declare.
+ (strip_offset_and_add): New function.
+ * rtl.def (CONST_POLY_INT): New rtx code.
+ * rtl.c (rtx_size): Handle CONST_POLY_INT.
+ (shared_const_p): Use poly_int_rtx_p.
+ * emit-rtl.h (gen_int_mode): Take a poly_int64 instead of a
+ HOST_WIDE_INT.
+ (gen_int_shift_amount): Likewise.
+ * emit-rtl.c (const_poly_int_hasher): New class.
+ (const_poly_int_htab): New variable.
+ (init_emit_once): Initialize it when NUM_POLY_INT_COEFFS > 1.
+ (const_poly_int_hasher::hash): New function.
+ (const_poly_int_hasher::equal): Likewise.
+ (gen_int_mode): Take a poly_int64 instead of a HOST_WIDE_INT.
+ (immed_wide_int_const): Rename to...
+ (immed_wide_int_const_1): ...this and make static.
+ (immed_wide_int_const): New function, taking a poly_wide_int_ref
+ instead of a wide_int_ref.
+ (gen_int_shift_amount): Take a poly_int64 instead of a HOST_WIDE_INT.
+ (gen_lowpart_common): Handle CONST_POLY_INT.
+ * cse.c (hash_rtx_cb, equiv_constant): Likewise.
+ * cselib.c (cselib_hash_rtx): Likewise.
+ * dwarf2out.c (const_ok_for_output_1): Likewise.
+ * expr.c (convert_modes): Likewise.
+ * print-rtl.c (rtx_writer::print_rtx, print_value): Likewise.
+ * rtlhash.c (add_rtx): Likewise.
+ * explow.c (trunc_int_for_mode): Add a poly_int64 version.
+ (plus_constant): Take a poly_int64 instead of a HOST_WIDE_INT.
+ Handle existing CONST_POLY_INT rtxes.
+ * expmed.h (expand_shift): Take a poly_int64 instead of a
+ HOST_WIDE_INT.
+ * expmed.c (expand_shift): Likewise.
+ * rtlanal.c (strip_offset): New function.
+ (commutative_operand_precedence): Give CONST_POLY_INT the same
+ precedence as CONST_DOUBLE and put CONST_WIDE_INT between that
+ and CONST_INT.
+ * rtl-tests.c (const_poly_int_tests): New struct.
+ (rtl_tests_c_tests): Use it.
+ * simplify-rtx.c (simplify_const_unary_operation): Handle
+ CONST_POLY_INT.
+ (simplify_const_binary_operation): Likewise.
+ (simplify_binary_operation_1): Fold additions of symbolic constants
+ and CONST_POLY_INTs.
+ (simplify_subreg): Handle extensions and truncations of
+ CONST_POLY_INTs.
+ (simplify_const_poly_int_tests): New struct.
+ (simplify_rtx_c_tests): Use it.
+ * wide-int.h (storage_ref): Add default constructor.
+ (wide_int_ref_storage): Likewise.
+ (trailing_wide_ints): Use GTY((user)).
+ (trailing_wide_ints::operator[]): Add a const version.
+ (trailing_wide_ints::get_precision): New function.
+ (trailing_wide_ints::extra_size): Likewise.
+
+2017-12-20 Richard Sandiford <richard.sandiford@linaro.org>
+ Alan Hayward <alan.hayward@arm.com>
+ David Sherwood <david.sherwood@arm.com>
+
* emit-rtl.h (gen_int_shift_amount): Declare.
* emit-rtl.c (gen_int_shift_amount): New function.
* asan.c (asan_emit_stack_protection): Use gen_int_shift_amount