2 # $Id: TEMPLATE_spec.pl 24066 2008-11-27 14:51:14Z mallon $
3 # This is a template specification for the Firm-Backend
7 # the cpu architecture (ia32, ia64, mips, sparc, ppc, ...)
12 $mode_flags = "mode_Bu";
15 # The node description is done as a perl hash initializer with the
16 # following structure:
21 # op_flags => "N|L|C|X|I|F|Y|H|c|K", # optional
22 # irn_flags => "R|N|I" # optional
23 # arity => "0|1|2|3 ... |variable|dynamic|any", # optional
24 # state => "floats|pinned|mem_pinned|exc_pinned", # optional
26 # { type => "type 1", name => "name 1" },
27 # { type => "type 2", name => "name 2" },
30 # comment => "any comment for constructor", # optional
31 # reg_req => { in => [ "reg_class|register" ], out => [ "reg_class|register|in_rX" ] },
32 # cmp_attr => "c source code for comparing node attributes", # optional
33 # outs => { "out1", "out2" },# optional, creates pn_op_out1, ... consts
34 # ins => { "in1", "in2" }, # optional, creates n_op_in1, ... consts
35 # mode => "mode_Iu", # optional, predefines the mode
36 # emit => "emit code with templates", # optional for virtual nodes
37 # attr => "additional attribute arguments for constructor", # optional
38 # init_attr => "emit attribute initialization template", # optional
39 # rd_constructor => "c source code which constructs an ir_node", # optional
40 # hash_func => "name of the hash function for this operation", # optional, get the default hash function else
41 # latency => "latency of this operation (can be float)" # optional
42 # attr_type => "name of the attribute struct", # optional
45 # ... # (all nodes you need to describe)
47 # ); # close the %nodes initializer
49 # op_flags: flags for the operation, OPTIONAL (default is "N")
50 # the op_flags correspond to the firm irop_flags:
53 # C irop_flag_commutative
54 # X irop_flag_cfopcode
55 # I irop_flag_ip_cfopcode
58 # H irop_flag_highlevel
59 # c irop_flag_constlike
62 # irn_flags: special node flags, OPTIONAL (default is 0)
63 # following irn_flags are supported:
66 # I ignore for register allocation
68 # state: state of the operation, OPTIONAL (default is "floats")
70 # arity: arity of the operation, MUST NOT BE OMITTED
72 # args: the OPTIONAL arguments of the node constructor (debug, irg and block
73 # are always the first 3 arguments and are always autmatically
75 # If this key is missing the following arguments will be created:
76 # for i = 1 .. arity: ir_node *op_i
79 # outs: if a node defines more than one output, the names of the projections
80 # nodes having outs having automatically the mode mode_T
82 # comment: OPTIONAL comment for the node constructor
84 # rd_constructor: for every operation there will be a
85 # new_rd_<arch>_<op-name> function with the arguments from above
86 # which creates the ir_node corresponding to the defined operation
87 # you can either put the complete source code of this function here
89 # This key is OPTIONAL. If omitted, the following constructor will
91 # if (!op_<arch>_<op-name>) assert(0);
95 # res = new_ir_node(db, irg, block, op_<arch>_<op-name>, mode, arity, in)
98 # NOTE: rd_constructor and args are only optional if and only if arity is 0,1,2 or 3
101 # 0 - no special type
102 # 1 - caller save (register must be saved by the caller of a function)
103 # 2 - callee save (register must be saved by the called function)
104 # 4 - ignore (do not assign this register)
105 # NOTE: Last entry of each class is the largest Firm-Mode a register can hold
107 # available SPARC registers: 8 globals, 24 window regs (8 ins, 8 outs, 8 locals)
110 { name => "g0", realname => "g0", type => 4 }, # hardwired 0, behaves like /dev/null
111 { name => "g1", realname => "g1", type => 1 }, # temp. value
112 { name => "g2", realname => "g2", type => 1 },
113 { name => "g3", realname => "g3", type => 1 },
114 { name => "g4", realname => "g4", type => 1 },
115 { name => "g5", realname => "g5", type => 4 }, # reserved by SPARC ABI
116 { name => "g6", realname => "g6", type => 4 }, # reserved by SPARC ABI
117 { name => "g7", realname => "g7", type => 2 }, # reserved by SPARC ABI
119 # window's out registers
120 { name => "o0", realname => "o0", type => 1 }, # param 1 / return value from callee
121 { name => "o1", realname => "o1", type => 1 }, # param 2
122 { name => "o2", realname => "o2", type => 1 }, # param 3
123 { name => "o3", realname => "o3", type => 1 }, # param 4
124 { name => "o4", realname => "o4", type => 1 }, # param 5
125 { name => "o5", realname => "o5", type => 1 }, # param 6
126 { name => "sp", realname => "sp", type => 4 }, # our stackpointer
127 { name => "o7", realname => "o6", type => 1 }, # temp. value / address of CALL instr.
129 # window's local registers
130 { name => "l0", realname => "l0", type => 2 },
131 { name => "l1", realname => "l1", type => 2 },
132 { name => "l2", realname => "l2", type => 2 },
133 { name => "l3", realname => "l3", type => 2 },
134 { name => "l4", realname => "l4", type => 2 },
135 { name => "l5", realname => "l5", type => 2 },
136 { name => "l6", realname => "l6", type => 2 },
137 { name => "l7", realname => "l7", type => 2 },
139 # window's in registers
140 { name => "i0", realname => "i0", type => 2 }, # incoming param1 / return value to caller
141 { name => "i1", realname => "i1", type => 2 }, # param 2
142 { name => "i2", realname => "i2", type => 2 }, # param 3
143 { name => "i3", realname => "i3", type => 2 }, # param 4
144 { name => "i4", realname => "i4", type => 2 }, # param 5
145 { name => "i5", realname => "i5", type => 2 }, # param 6
146 { name => "fp", realname => "i6", type => 4 }, # our framepointer
147 { name => "i7", realname => "i7", type => 2 }, # return address - 8
151 { name => "y", realname => "y", type => 4 }, # the multiply/divide state register
152 { mode => $mode_flags, flags => "manual_ra" }
155 # { name => "psr", realname => "psr", type => 4 }, # the processor state register
156 # { name => "wim", realname => "wim", type => 4 }, # the window invalid mask register
157 # { name => "tbr", realname => "tbr", type => 4 }, # the trap base register
158 # { name => "pc", realname => "pc", type => 4 }, # the program counter register
159 # { name => "npc", realname => "npc", type => 4 }, # the next instruction addr. (PC + 1) register
160 # { mode => "mode_Iu", flags => "manual_ra" }
163 # fp registers can be accessed any time
165 { name => "f0", type => 1 },
166 { name => "f1", type => 1 },
167 { name => "f2", type => 1 },
168 { name => "f3", type => 1 },
169 { name => "f4", type => 1 },
170 { name => "f5", type => 1 },
171 { name => "f6", type => 1 },
172 { name => "f7", type => 1 },
173 { name => "f8", type => 1 },
174 { name => "f9", type => 1 },
175 { name => "f10", type => 1 },
176 { name => "f11", type => 1 },
177 { name => "f12", type => 1 },
178 { name => "f13", type => 1 },
179 { name => "f14", type => 1 },
180 { name => "f15", type => 1 },
181 { name => "f16", type => 1 },
182 { name => "f17", type => 1 },
183 { name => "f18", type => 1 },
184 { name => "f19", type => 1 },
185 { name => "f20", type => 1 },
186 { name => "f21", type => 1 },
187 { name => "f22", type => 1 },
188 { name => "f23", type => 1 },
189 { name => "f24", type => 1 },
190 { name => "f25", type => 1 },
191 { name => "f26", type => 1 },
192 { name => "f27", type => 1 },
193 { name => "f28", type => 1 },
194 { name => "f29", type => 1 },
195 { name => "f30", type => 1 },
196 { name => "f31", type => 1 },
202 # emit source reg or imm dep. on node's arity
203 RI => "${arch}_emit_reg_or_imm(node, -1);",
204 R1I => "${arch}_emit_reg_or_imm(node, 0);",
205 R2I => "${arch}_emit_reg_or_imm(node, 1);",
206 R3I => "${arch}_emit_reg_or_imm(node, 2);",
207 # simple reg emitters
208 S1 => "${arch}_emit_source_register(node, 0);",
209 S2 => "${arch}_emit_source_register(node, 1);",
210 S3 => "${arch}_emit_source_register(node, 2);",
211 S4 => "${arch}_emit_source_register(node, 3);",
212 S5 => "${arch}_emit_source_register(node, 4);",
213 S6 => "${arch}_emit_source_register(node, 5);",
214 D1 => "${arch}_emit_dest_register(node, 0);",
215 D2 => "${arch}_emit_dest_register(node, 1);",
216 D3 => "${arch}_emit_dest_register(node, 2);",
217 D4 => "${arch}_emit_dest_register(node, 3);",
218 D5 => "${arch}_emit_dest_register(node, 4);",
219 D6 => "${arch}_emit_dest_register(node, 5);",
220 # more custom emitters
221 C => "${arch}_emit_immediate(node);",
222 LM => "${arch}_emit_load_mode(node);",
223 SM => "${arch}_emit_store_mode(node);",
224 O => "${arch}_emit_offset(node);",
227 #--------------------------------------------------#
230 # _ __ _____ __ _ _ __ ___ _ __ ___ #
231 # | '_ \ / _ \ \ /\ / / | | '__| / _ \| '_ \/ __| #
232 # | | | | __/\ V V / | | | | (_) | |_) \__ \ #
233 # |_| |_|\___| \_/\_/ |_|_| \___/| .__/|___/ #
236 #--------------------------------------------------#
238 $default_attr_type = "sparc_attr_t";
239 $default_copy_attr = "sparc_copy_attr";
243 sparc_attr_t => "\tinit_sparc_attributes(res, flags, in_reqs, exec_units, n_res);",
244 sparc_load_store_attr_t => "\tinit_sparc_attributes(res, flags, in_reqs, exec_units, n_res);\n".
245 "\tinit_sparc_load_store_attributes(res, ls_mode, entity, entity_sign, offset, is_frame_entity);",
246 sparc_symconst_attr_t => "\tinit_sparc_attributes(res, flags, in_reqs, exec_units, n_res);\n".
247 "\tinit_sparc_symconst_attributes(res, entity);",
248 sparc_cmp_attr_t => "\tinit_sparc_attributes(res, flags, in_reqs, exec_units, n_res);\n",
249 sparc_jmp_cond_attr_t => "\tinit_sparc_attributes(res, flags, in_reqs, exec_units, n_res);",
250 sparc_jmp_switch_attr_t => "\tinit_sparc_attributes(res, flags, in_reqs, exec_units, n_res);",
255 sparc_attr_t => "cmp_attr_sparc",
256 sparc_load_store_attr_t => "cmp_attr_sparc_load_store",
257 sparc_symconst_attr_t => "cmp_attr_sparc_symconst",
258 sparc_jmp_cond_attr_t => "cmp_attr_sparc_jmp_cond",
259 sparc_jmp_switch_attr_t => "cmp_attr_sparc_jmp_switch",
260 sparc_cmp_attr_t => "cmp_attr_sparc_cmp",
264 # addressing modes: imm, reg, reg +/- imm, reg + reg
265 # max. imm = 13 bits signed (-4096 ... 4096)
268 my %cmp_operand_constructors = (
270 attr => "int immediate_value, bool ins_permuted, bool is_unsigned",
271 custominit => "sparc_set_attr_imm(res, immediate_value);" .
272 "\tinit_sparc_cmp_attr(res, ins_permuted, is_unsigned);",
273 reg_req => { in => [ "gp" ], out => [ "flags" ] },
277 attr => "bool ins_permuted, bool is_unsigned",
278 custominit => "init_sparc_cmp_attr(res, ins_permuted, is_unsigned);",
279 reg_req => { in => [ "gp", "gp" ], out => [ "flags" ] },
280 ins => [ "left", "right" ],
284 my %unop_operand_constructors = (
286 attr => "int immediate_value",
287 custominit => "sparc_set_attr_imm(res, immediate_value);",
288 reg_req => { in => [], out => [ "gp" ] },
291 # custominit => "set_sparc_attr_values(res, immediate_value);",
292 reg_req => { in => [ "gp" ], out => [ "gp" ] },
296 my %binop_operand_constructors = (
298 attr => "int immediate_value",
299 custominit => "sparc_set_attr_imm(res, immediate_value);",
300 reg_req => { in => [ "gp" ], out => [ "gp" ] },
304 # custominit => "set_sparc_attr_values(res, immediate_value);",
305 reg_req => { in => [ "gp", "gp" ], out => [ "gp" ] },
306 ins => [ "left", "right" ],
312 #-----------------------------------------------------------------#
315 # _ _ __ | |_ ___ __ _ ___ _ __ _ __ ___ __| | ___ ___ #
316 # | | '_ \| __/ _ \/ _` |/ _ \ '__| | '_ \ / _ \ / _` |/ _ \/ __| #
317 # | | | | | || __/ (_| | __/ | | | | | (_) | (_| | __/\__ \ #
318 # |_|_| |_|\__\___|\__, |\___|_| |_| |_|\___/ \__,_|\___||___/ #
321 #-----------------------------------------------------------------#
323 # commutative operations
327 comment => "construct Add: Add(a, b) = Add(b, a) = a + b",
329 emit => '. add %S1, %R2I, %D1',
330 constructors => \%binop_operand_constructors,
335 comment => "construct Sub: Sub(a, b) = a - b",
337 reg_req => { in => [ "gp", "gp" ], out => [ "gp" ] },
338 emit => '. sub %S1, %R2I, %D1',
339 constructors => \%binop_operand_constructors,
346 comment => "construct Load: Load(ptr, mem) = LD ptr -> reg",
347 state => "exc_pinned",
348 ins => [ "ptr", "mem" ],
349 outs => [ "res", "M" ],
350 reg_req => { in => [ "gp", "none" ], out => [ "gp", "none" ] },
351 attr_type => "sparc_load_store_attr_t",
352 attr => "ir_mode *ls_mode, ir_entity *entity, int entity_sign, long offset, bool is_frame_entity",
353 emit => '. ld%LM [%S1%O], %D1'
358 comment => "construct LoadHi: Load(ptr, mem) = sethi hi(ptr) -> reg",
359 state => "exc_pinned",
360 ins => [ "ptr", "mem" ],
361 outs => [ "res", "M" ],
362 reg_req => { in => [ "gp", "none" ], out => [ "gp", "none" ] },
363 attr_type => "sparc_load_store_attr_t",
364 attr => "ir_mode *ls_mode, ir_entity *entity, int entity_sign, long offset, bool is_frame_entity",
365 emit => '. sethi %%hi(%S1), %D1'
370 comment => "construct LoadLo: Or(in, ptr, mem) = or in lo(ptr) -> reg",
371 state => "exc_pinned",
372 ins => [ "hireg", "ptr", "mem" ],
373 outs => [ "res", "M" ],
374 reg_req => { in => [ "gp", "gp", "none" ], out => [ "gp", "none" ] },
375 attr_type => "sparc_load_store_attr_t",
376 attr => "ir_mode *ls_mode, ir_entity *entity, int entity_sign, long offset, bool is_frame_entity",
377 emit => '. or %S1, %%lo(%S2), %D1'
382 comment => "construct Store: Store(ptr, val, mem) = ST ptr,val",
384 state => "exc_pinned",
385 ins => [ "ptr", "val", "mem" ],
387 reg_req => { in => [ "gp", "gp", "none" ], out => [ "none" ] },
388 attr_type => "sparc_load_store_attr_t",
389 attr => "ir_mode *ls_mode, ir_entity *entity, int entity_sign, long offset, bool is_frame_entity",
390 emit => '. st%SM %S2, [%S1%O]'
395 comment => "construct Mov: Mov(src, dest) = MV src,dest",
397 emit => '. mov %R1I, %D1',
399 constructors => \%unop_operand_constructors,
403 comment => "alloc stack space",
404 reg_req => { in => [ "sp", "gp", "none" ], out => [ "sp:I|S", "gp", "none" ] },
405 ins => [ "stack", "size", "mem" ],
406 outs => [ "stack", "addr", "M" ],
407 emit => ". sub %S1, %S2, %D1\n",
411 comment => "free stack space",
412 reg_req => { in => [ "sp", "gp", "none" ], out => [ "sp:I|S", "none" ] },
413 ins => [ "stack", "size", "mem" ],
414 outs => [ "stack", "M" ],
415 emit => ". add %S1, %S2, %D1\n",
421 attr => "ir_entity *entity",
422 reg_req => { out => [ "gp" ] },
423 attr_type => "sparc_symconst_attr_t",
430 attr => "ir_entity *entity",
431 reg_req => { in => [ "gp" ], out => [ "gp" ] },
433 attr_type => "sparc_symconst_attr_t",
441 reg_req => { in => [ "flags" ], out => [ "none", "none" ] },
442 attr => "int proj_num",
443 attr_type => "sparc_jmp_cond_attr_t",
444 init_attr => "\tset_sparc_jmp_cond_proj_num(res, proj_num);",
451 reg_req => { out => [ "none" ] },
457 emit => '. cmp %S1, %R2I',
459 attr_type => "sparc_cmp_attr_t",
460 constructors => \%cmp_operand_constructors,
467 attr_type => "sparc_cmp_attr_t",
468 attr => "bool ins_permuted, bool is_unsigned",
469 custominit => "init_sparc_cmp_attr(res, ins_permuted, is_unsigned);",
470 reg_req => { in => [ "gp" ], out => [ "flags" ] },
478 attr => "int n_projs, long def_proj_num",
479 init_attr => "\tset_sparc_jmp_switch_n_projs(res, n_projs);\n".
480 "\tset_sparc_jmp_switch_default_proj_num(res, def_proj_num);",
481 reg_req => { in => [ "gp" ], out => [ "none" ] },
482 attr_type => "sparc_jmp_switch_attr_t",
487 comment => "construct shift logical left",
489 reg_req => { in => [ "gp", "gp" ], out => [ "gp" ] },
490 emit => '. sll %S1, %R2I, %D1',
491 constructors => \%binop_operand_constructors,
496 comment => "construct shift logical right",
498 reg_req => { in => [ "gp", "gp" ], out => [ "gp" ] },
499 emit => '. slr %S1, %R2I, %D1',
500 constructors => \%binop_operand_constructors,
505 comment => "construct shift right arithmetical",
507 reg_req => { in => [ "gp", "gp" ], out => [ "gp" ] },
508 emit => '. sra %S1, %R2I, %D1',
509 constructors => \%binop_operand_constructors,
514 comment => "construct logical and",
516 reg_req => { in => [ "gp", "gp" ], out => [ "gp" ] },
517 emit => '. and %S1, %R2I, %D1',
518 constructors => \%binop_operand_constructors,
523 comment => "construct logical or",
525 reg_req => { in => [ "gp", "gp" ], out => [ "gp" ] },
526 emit => '. or %S1, %R2I, %D1',
527 constructors => \%binop_operand_constructors,
533 # comment => "construct Mul: Mul(a, b) = Mul(b, a) = a * b",
534 # reg_req => { in => [ "gp", "gp" ], out => [ "gp" ] },
535 # emit =>'. mul %S1, %S2, %D1'
540 # comment => "construct Mul: Mul(a, const) = Mul(const, a) = a * const",
541 # reg_req => { in => [ "gp" ], out => [ "gp" ] },
542 # emit => '. mul %S1, %C, %D1'
548 # comment => "construct And: And(a, b) = And(b, a) = a AND b",
549 # reg_req => { in => [ "gp", "gp" ], out => [ "gp" ] },
550 # emit => '. and %S1, %S2, %D1'
555 # comment => "construct And: And(a, const) = And(const, a) = a AND const",
556 # reg_req => { in => [ "gp" ], out => [ "gp" ] },
557 # emit => '. and %S1, %C, %D1'
563 # comment => "construct Or: Or(a, b) = Or(b, a) = a OR b",
564 # reg_req => { in => [ "gp", "gp" ], out => [ "gp" ] },
565 # emit => '. or %S1, %S2, %D1'
571 # comment => "construct Or: Or(a, const) = Or(const, a) = a OR const",
572 # reg_req => { in => [ "gp" ], out => [ "gp" ] },
573 # emit => '. or %S1, %C, %D1'
579 # comment => "construct Eor: Eor(a, b) = Eor(b, a) = a EOR b",
580 # reg_req => { in => [ "gp", "gp" ], out => [ "gp" ] },
581 # emit => '. xor %S1, %S2, %D1'
586 # comment => "construct Eor: Eor(a, const) = Eor(const, a) = a EOR const",
587 # reg_req => { in => [ "gp" ], out => [ "gp" ] },
588 # emit => '. xor %S1, %C, %D1'
591 # not commutative operations
594 # comment => "construct Shl: Shl(a, b) = a << b",
595 # reg_req => { in => [ "gp", "gp" ], out => [ "gp" ] },
596 # emit => '. shl %S1, %S2, %D1'
601 # comment => "construct Shl: Shl(a, const) = a << const",
602 # reg_req => { in => [ "gp" ], out => [ "gp" ] },
603 # emit => '. shl %S1, %C, %D1'
608 # comment => "construct Shr: Shr(a, b) = a >> b",
609 # reg_req => { in => [ "gp", "gp" ], out => [ "in_r1" ] },
610 # emit => '. shr %S2, %D1'
615 # comment => "construct Shr: Shr(a, const) = a >> const",
616 # reg_req => { in => [ "gp" ], out => [ "gp" ] },
617 # emit => '. shr %S1, %C, %D1'
622 # comment => "construct RotR: RotR(a, b) = a ROTR b",
623 # reg_req => { in => [ "gp", "gp" ], out => [ "gp" ] },
624 # emit => '. ror %S1, %S2, %D1'
629 # comment => "construct RotL: RotL(a, b) = a ROTL b",
630 # reg_req => { in => [ "gp", "gp" ], out => [ "gp" ] },
631 # emit => '. rol %S1, %S2, %D1'
636 # comment => "construct RotL: RotL(a, const) = a ROTL const",
637 # reg_req => { in => [ "gp" ], out => [ "gp" ] },
638 # emit => '. rol %S1, %C, %D1'
643 # comment => "construct Minus: Minus(a) = -a",
644 # reg_req => { in => [ "gp" ], out => [ "gp" ] },
645 # emit => '. neg %S1, %D1'
650 # comment => "construct Increment: Inc(a) = a++",
651 # reg_req => { in => [ "gp" ], out => [ "gp" ] },
652 # emit => '. inc %S1, %D1'
657 # comment => "construct Decrement: Dec(a) = a--",
658 # reg_req => { in => [ "gp" ], out => [ "gp" ] },
659 # emit => '. dec %S1, %D1'
665 # comment => "construct Not: Not(a) = !a",
666 # reg_req => { in => [ "gp" ], out => [ "gp" ] },
667 # emit => '. not %S1, %D1'
671 #--------------------------------------------------------#
674 # | |_| | ___ __ _| |_ _ __ ___ __| | ___ ___ #
675 # | _| |/ _ \ / _` | __| | '_ \ / _ \ / _` |/ _ \/ __| #
676 # | | | | (_) | (_| | |_ | | | | (_) | (_| | __/\__ \ #
677 # |_| |_|\___/ \__,_|\__| |_| |_|\___/ \__,_|\___||___/ #
678 #--------------------------------------------------------#
680 # commutative operations
685 # comment => "construct FP Add: Add(a, b) = Add(b, a) = a + b",
686 # reg_req => { in => [ "fp", "fp" ], out => [ "fp" ] },
687 # emit => '. fadd %S1, %S2, %D1'
692 # comment => "construct FP Mul: Mul(a, b) = Mul(b, a) = a * b",
693 # reg_req => { in => [ "fp", "fp" ], out => [ "fp" ] },
694 # emit =>'. fmul %S1, %S2, %D1'
700 # comment => "construct FP Max: Max(a, b) = Max(b, a) = a > b ? a : b",
701 # reg_req => { in => [ "fp", "fp" ], out => [ "fp" ] },
702 # emit =>'. fmax %S1, %S2, %D1'
708 # comment => "construct FP Min: Min(a, b) = Min(b, a) = a < b ? a : b",
709 # reg_req => { in => [ "fp", "fp" ], out => [ "fp" ] },
710 # emit =>'. fmin %S1, %S2, %D1'
713 ## not commutative operations
717 # comment => "construct FP Sub: Sub(a, b) = a - b",
718 # reg_req => { in => [ "fp", "fp" ], out => [ "fp" ] },
719 # emit => '. fsub %S1, %S2, %D1'
723 # comment => "construct FP Div: Div(a, b) = a / b",
724 # reg_req => { in => [ "fp", "fp" ], out => [ "fp" ] },
725 # emit => '. fdiv %S1, %S2, %D1'
730 # comment => "construct FP Minus: Minus(a) = -a",
731 # reg_req => { in => [ "fp" ], out => [ "fp" ] },
732 # emit => '. fneg %S1, %D1'
740 # comment => "represents a FP constant",
741 # reg_req => { out => [ "fp" ] },
742 # emit => '. fmov %C, %D1',
745 # /* TODO: compare fConst attributes */
755 # state => "exc_pinned",
756 # comment => "construct FP Load: Load(ptr, mem) = LD ptr",
757 # reg_req => { in => [ "gp", "none" ], out => [ "fp" ] },
758 # emit => '. fmov (%S1), %D1'
764 # state => "exc_pinned",
765 # comment => "construct Store: Store(ptr, val, mem) = ST ptr,val",
766 # reg_req => { in => [ "gp", "fp", "none" ] },
767 # emit => '. fmov %S2, (%S1)'