summaryrefslogtreecommitdiff
path: root/gcc/config/cris/predicates.md
diff options
context:
space:
mode:
authorupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
committerupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
commit554fd8c5195424bdbcabf5de30fdc183aba391bd (patch)
tree976dc5ab7fddf506dadce60ae936f43f58787092 /gcc/config/cris/predicates.md
downloadcbb-gcc-4.6.4-554fd8c5195424bdbcabf5de30fdc183aba391bd.tar.bz2
cbb-gcc-4.6.4-554fd8c5195424bdbcabf5de30fdc183aba391bd.tar.xz
obtained gcc-4.6.4.tar.bz2 from upstream website;upstream
verified gcc-4.6.4.tar.bz2.sig; imported gcc-4.6.4 source tree from verified upstream tarball. downloading a git-generated archive based on the 'upstream' tag should provide you with a source tree that is binary identical to the one extracted from the above tarball. if you have obtained the source via the command 'git clone', however, do note that line-endings of files in your working directory might differ from line-endings of the respective files in the upstream repository.
Diffstat (limited to 'gcc/config/cris/predicates.md')
-rw-r--r--gcc/config/cris/predicates.md174
1 files changed, 174 insertions, 0 deletions
diff --git a/gcc/config/cris/predicates.md b/gcc/config/cris/predicates.md
new file mode 100644
index 000000000..edd16bbdd
--- /dev/null
+++ b/gcc/config/cris/predicates.md
@@ -0,0 +1,174 @@
+;; Operand and operator predicates for the GCC CRIS port.
+;; Copyright (C) 2005, 2007 Free Software Foundation, Inc.
+
+;; This file is part of GCC.
+;;
+;; GCC is free software; you can redistribute it and/or modify
+;; it under the terms of the GNU General Public License as published by
+;; the Free Software Foundation; either version 3, or (at your option)
+;; any later version.
+;;
+;; GCC is distributed in the hope that it will be useful,
+;; but WITHOUT ANY WARRANTY; without even the implied warranty of
+;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+;; GNU General Public License for more details.
+;;
+;; You should have received a copy of the GNU General Public License
+;; along with GCC; see the file COPYING3. If not see
+;; <http://www.gnu.org/licenses/>.
+
+
+;; Operator predicates.
+
+(define_predicate "cris_orthogonal_operator"
+ (match_code "plus, minus, ior, and, umin"))
+
+(define_predicate "cris_commutative_orth_op"
+ (match_code "plus, ior, and, umin"))
+
+;; By the name, you might think we should include MULT. We don't because
+;; it doesn't accept the same addressing modes as the others (only
+;; registers) and there's also the problem of handling TARGET_MUL_BUG.
+
+(define_predicate "cris_operand_extend_operator"
+ (match_code "plus, minus, umin"))
+
+(define_predicate "cris_additive_operand_extend_operator"
+ (match_code "plus, minus"))
+
+(define_predicate "cris_extend_operator"
+ (match_code "zero_extend, sign_extend"))
+
+(define_predicate "cris_plus_or_bound_operator"
+ (match_code "plus, umin"))
+
+;; Used as an operator to get a handle on a already-known-valid MEM rtx:es
+;; (no need to validate the address), where some address expression parts
+;; have their own match_operand.
+
+(define_predicate "cris_mem_op"
+ (match_code "mem"))
+
+(define_predicate "cris_load_multiple_op"
+ (and (match_code "parallel")
+ (match_test "cris_movem_load_rest_p (op, 0)")))
+
+(define_predicate "cris_store_multiple_op"
+ (and (match_code "parallel")
+ (match_test "cris_store_multiple_op_p (op)")))
+
+
+;; Operand helper predicates.
+
+(define_predicate "cris_bdap_const_operand"
+ (and (match_code "label_ref, symbol_ref, const_int, const_double, const")
+ (ior (not (match_test "flag_pic"))
+ (match_test "cris_valid_pic_const (op, true)"))))
+
+(define_predicate "cris_simple_address_operand"
+ (ior (match_operand:SI 0 "register_operand")
+ (and (match_code "post_inc")
+ (match_test "register_operand (XEXP (op, 0), Pmode)"))))
+
+(define_predicate "cris_simple_operand"
+ (ior (match_operand 0 "register_operand")
+ (and (match_code "mem")
+ (match_test "cris_simple_address_operand (XEXP (op, 0),
+ Pmode)"))))
+
+;; The caller needs to use :SI.
+(define_predicate "cris_bdap_sign_extend_operand"
+; Disabled until <URL:http://gcc.gnu.org/ml/gcc-patches/2005-10/msg01376.html>
+; or <URL:http://gcc.gnu.org/ml/gcc-patches/2005-10/msg00940.html> is committed.
+ (match_test "0"))
+; (and (match_code "sign_extend")
+; (and (match_test "MEM_P (XEXP (op, 0))")
+; (match_test "cris_simple_address_operand (XEXP (XEXP (op, 0), 0),
+; Pmode)"))))
+
+;; FIXME: Should not have to test for 1.
+(define_predicate "cris_scale_int_operand"
+ (and (match_code "const_int")
+ (ior (ior (match_test "op == GEN_INT (4)")
+ (match_test "op == const2_rtx"))
+ (match_test "op == const1_rtx"))))
+
+;; FIXME: Should be able to assume (reg int).
+(define_predicate "cris_biap_mult_operand"
+ (and (match_code "mult")
+ (ior (and (match_test "register_operand (XEXP (op, 0), Pmode)")
+ (match_test "cris_scale_int_operand (XEXP (op, 1), Pmode)"))
+ (and (match_test "cris_scale_int_operand (XEXP (op, 0), Pmode)")
+ (match_test "register_operand (XEXP (op, 1), Pmode)")))))
+
+
+;; Operand predicates.
+
+;; This checks a part of an address, the one that is not a plain register
+;; for an addressing mode using BDAP.
+;; Allowed operands are either:
+;; a) a register
+;; b) a CONST operand (but not a symbol when generating PIC)
+;; c) a [r] or [r+] in SImode, or sign-extend from HI or QI.
+
+(define_predicate "cris_bdap_operand"
+ (ior (match_operand 0 "cris_bdap_const_operand")
+ (ior (match_operand:SI 0 "cris_simple_operand")
+ (match_operand:SI 0 "cris_bdap_sign_extend_operand"))))
+
+;; This is similar to cris_bdap_operand:
+;; It checks a part of an address, the one that is not a plain register
+;; for an addressing mode using BDAP or BIAP.
+;; Allowed operands are either:
+;; a) a register
+;; b) a CONST operand (but not a symbol when generating PIC)
+;; c) a mult of (1, 2 or 4) and a register
+;; d) a [r] or [r+] in SImode, or sign-extend from HI or QI. */
+
+(define_predicate "cris_bdap_biap_operand"
+ (ior (match_operand 0 "cris_bdap_operand")
+ (match_operand 0 "cris_biap_mult_operand")))
+
+;; Since with -fPIC, not all symbols are valid PIC symbols or indeed
+;; general_operands, we have to have a predicate that matches it for the
+;; "movsi" expander.
+;; FIXME: Can s/special_// when PR 20413 is fixed.
+
+(define_special_predicate "cris_general_operand_or_symbol"
+ (ior (match_operand 0 "general_operand")
+ (and (match_code "const, symbol_ref, label_ref")
+ ; The following test is actually just an assertion.
+ (match_test "cris_pic_symbol_type_of (op) != cris_no_symbol"))))
+
+;; A predicate for the anon movsi expansion, one that fits a PCREL
+;; operand as well as general_operand.
+
+(define_special_predicate "cris_general_operand_or_pic_source"
+ (ior (match_operand 0 "general_operand")
+ (and (match_test "flag_pic")
+ (match_test "cris_valid_pic_const (op, false)"))))
+
+;; Since a PLT symbol is not a general_operand, we have to have a
+;; predicate that matches it when we need it. We use this in the expanded
+;; "call" and "call_value" anonymous patterns.
+
+(define_predicate "cris_nonmemory_operand_or_callable_symbol"
+ (ior (match_operand 0 "nonmemory_operand")
+ (and (match_code "const")
+ (and
+ (match_test "GET_CODE (XEXP (op, 0)) == UNSPEC")
+ (ior
+ (match_test "XINT (XEXP (op, 0), 1) == CRIS_UNSPEC_PLT_PCREL")
+ (match_test "XINT (XEXP (op, 0), 1) == CRIS_UNSPEC_PCREL"))))))
+
+;; This matches a (MEM (general_operand)) or
+;; (MEM (cris_general_operand_or_symbol)). The second one isn't a valid
+;; memory_operand, so we need this predicate to recognize call
+;; destinations before we change them to a PLT operand (by wrapping in
+;; UNSPEC CRIS_UNSPEC_PLT).
+
+(define_predicate "cris_mem_call_operand"
+ (and (match_code "mem")
+ (ior (match_operand 0 "memory_operand")
+ (match_test "cris_general_operand_or_symbol (XEXP (op, 0),
+ Pmode)"))))