X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ir%2Fbe%2Fscripts%2Fgenerate_new_opcodes.pl;h=a61fcad565a4c8792c19f4a07ab0c57e92611515;hb=39cb52264857d7c21c7141ba82bb55adaa78064d;hp=f250a4225e20df2567c6c4c214521d51a35024c1;hpb=f28e94beb62a32e9532b314ba78d9221ef11439e;p=libfirm diff --git a/ir/be/scripts/generate_new_opcodes.pl b/ir/be/scripts/generate_new_opcodes.pl index f250a4225..a61fcad56 100755 --- a/ir/be/scripts/generate_new_opcodes.pl +++ b/ir/be/scripts/generate_new_opcodes.pl @@ -1,5 +1,24 @@ #!/usr/bin/perl -w +# +# Copyright (C) 1995-2008 University of Karlsruhe. All right reserved. +# +# This file is part of libFirm. +# +# This file may be distributed and/or modified under the terms of the +# GNU General Public License version 2 as published by the Free Software +# Foundation and appearing in the file LICENSE.GPL included in the +# packaging of this file. +# +# Licensees holding valid libFirm Professional Edition licenses may use +# this file in accordance with the libFirm Commercial License. +# Agreement provided with the Software. +# +# This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE +# WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR +# PURPOSE. +# + # This script generates the C code which creates the irop's and # their coresponding node constructors for all operations in a given spec # so they can be used as normal firm nodes. @@ -18,8 +37,17 @@ my $line_nr = 0; our $arch; our $additional_opcodes; our %nodes; +our %operands; our %cpu; +our $default_op_attr_type; +our $default_attr_type; our $default_cmp_attr; +our $default_copy_attr; +our %init_attr; +our $custom_init_attr_func; +our %compare_attr; +our %copy_attr; +our %reg_classes; # include spec file @@ -27,20 +55,63 @@ my $return; no strict "subs"; unless ($return = do $specfile) { - warn "couldn't parse $specfile: $@" if $@; - warn "couldn't do $specfile: $!" unless defined $return; - warn "couldn't run $specfile" unless $return; + die "Fatal error: couldn't parse $specfile: $@" if $@; + die "Fatal error: couldn't do $specfile: $!" unless defined $return; + die "Fatal error: couldn't run $specfile" unless $return; } use strict "subs"; my $target_c = $target_dir."/gen_".$arch."_new_nodes.c.inl"; my $target_h = $target_dir."/gen_".$arch."_new_nodes.h"; +if(!defined($default_attr_type)) { + $default_attr_type = "${arch}_attr_t"; +} +if(!defined(%init_attr)) { + %init_attr = ( + "$default_attr_type" => "\tinit_${arch}_attributes(res, flags, in_reqs, out_reqs, exec_units, n_res);", + ); +} +if(!defined($default_cmp_attr)) { + $default_cmp_attr = "${arch}_compare_attr"; +} +if(!defined(%compare_attr)) { + %compare_attr = ( + "${default_attr_type}" => "${default_cmp_attr}", + ); +} + +# Operands are really just nodes with some special constraints, we check +# these and create new entries in the nodes hashmap +foreach my $op (keys(%operands)) { + my %operand = %{ $operands{"$op"} }; + my %op_node; + + # constraints + if(defined($operand{op_flags})) { die "Fatal error: operands can't have op_flags ($op)"; } + if(defined($operand{cmp_attr})) { die "Fatal error: cmp_attr not allowed for operands ($op)"; } + if(defined($operand{mode})) { die "Operand must not have a mode defined ($op)"; } + if(defined($operand{out_arity})) { die "operand must not have out_arity defined ($op)"; } + if(defined($nodes{$op})) { die "$op defined as operand and as node"; }; + + + foreach my $flag (keys(%operand)) { + $op_node{$flag} = $operand{$flag}; + } + $op_node{op_flags} = "O"; + $op_node{cmp_attr} = 'return 1;'; + $op_node{mode} = 'mode_ANY'; + + $nodes{$op} = \%op_node; +} + #print Dumper(%nodes); #print Dumper(%operands); # create c code file from specs +my @obst_limit_func; +my @obst_reg_reqs; my @obst_opvar; # stack for the "ir_op *op__ = NULL;" statements my @obst_get_opvar; # stack for the get_op__() functions my @obst_constructor; # stack for node constructor functions @@ -55,51 +126,126 @@ my $arity; my $cmp_attr_func; my $temp; my $n_opcodes = 0; # number of opcodes +my $ARITY_VARIABLE = -1; +my $ARITY_DYNAMIC = -2; +my %requirements = (); +my %limit_bitsets = (); +my %reg2class = (); +my %regclass2len = (); + +# build register->class hashes +foreach my $class_name (keys(%reg_classes)) { + my @class = @{ $reg_classes{"$class_name"} }; + my $old_classname = $class_name; + + pop(@class); + + $class_name = $arch."_".$class_name; + + my $idx = 0; + foreach (@class) { + $reg2class{$_->{name}} = { + "class" => $old_classname, + "index" => $idx + }; + $idx++; + } + + $regclass2len{$old_classname} = $idx; +} + # for registering additional opcodes $n_opcodes += $additional_opcodes if (defined($additional_opcodes)); -push(@obst_header, "void ".$arch."_create_opcodes(void);\n"); +push(@obst_header, "void ".$arch."_create_opcodes(const arch_irn_ops_t *be_ops);\n"); push(@obst_enum_op, "typedef enum _$arch\_opcodes {\n"); foreach my $op (keys(%nodes)) { my %n = %{ $nodes{"$op"} }; my $known_mode; - my $n_res = 0; my $num_outs = 0; + my $out_arity; my @out_flags; - # determine arity from in requirements - $arity = exists($n{"arity"}) ? $n{"arity"} : 0; - if (exists($n{"reg_req"}) && exists($n{"reg_req"}{"in"})) { + # determine arity + $arity = 0; + if(exists($n{"arity"})) { + $arity = $n{"arity"}; + } elsif (exists($n{"reg_req"}) && exists($n{"reg_req"}{"in"})) { $arity = scalar(@{ $n{"reg_req"}{"in"} }); + } elsif (exists($n{"ins"})) { + $arity = scalar(@{ $n{"ins"} }); + } + if($arity eq "variable") { + $arity = $ARITY_VARIABLE; + } elsif($arity eq "dynamic") { + $arity = $ARITY_DYNAMIC; + } + + # determine out arity + $out_arity = 0; + if(exists($n{"out_arity"})) { + $out_arity = $n{"out_arity"}; + } elsif (exists($n{"reg_req"}) && exists($n{"reg_req"}{"out"})) { + $out_arity = scalar(@{ $n{"reg_req"}{"out"} }); + } elsif (exists($n{"outs"})) { + $out_arity = scalar(@{ $n{"outs"} }); + } + if($out_arity eq "variable") { + $out_arity = $ARITY_VARIABLE; + } elsif($out_arity eq "dynamic") { + $out_arity = $ARITY_DYNAMIC; } $orig_op = $op; $op = $arch."_".$op; $temp = ""; - # define some proj numbers + # define proj numbers and in numbers if (exists($n{"outs"})) { undef my @outs; @outs = @{ $n{"outs"} }; + if($out_arity >= 0 && scalar(@outs) != $out_arity) { + die "Fatal error: Op ${op} has different number of outs and out_arity\n"; + } + $num_outs = $#outs + 1; push(@obst_proj, "\nenum pn_$op {\n"); for (my $idx = 0; $idx <= $#outs; $idx++) { # check, if we have additional flags annotated to out - if ($outs[$idx] =~ /:(S|I(\|(S|I))*)/) { + if ($outs[$idx] =~ /:((S|I)(\|(S|I))*)/) { push(@out_flags, $1); - $outs[$idx] =~ s/:(S|I(\|(S|I))*)//; + $outs[$idx] =~ s/:((S|I)(\|(S|I))*)//; } - push(@obst_proj, " pn_$op\_".$outs[$idx]." = $idx,\n"); + push(@obst_proj, "\tpn_$op\_".$outs[$idx]." = $idx,\n"); } push(@obst_proj, "};\n"); + # outs have names, it must be a mode_T node $known_mode = "mode_T"; } + if (exists($n{"ins"})) { + undef my @ins; + + @ins = @{ $n{"ins"} }; + if($arity >= 0 && scalar(@ins) != $arity) { + die "Fatal error: Op ${op} has different number of ins and arity\n"; + } + + push(@obst_proj, "\nenum n_$op {\n"); + + for (my $idx = 0; $idx <= $#ins; $idx++) { + push(@obst_proj, "\tn_${op}_".$ins[$idx]." = $idx,\n"); + } + + push(@obst_proj, "};\n"); + } + + # determine mode if (exists($n{"mode"})) { $known_mode = $n{"mode"}; } @@ -114,58 +260,91 @@ foreach my $op (keys(%nodes)) { push(@obst_header, "ir_op *get_op_$op(void);\n"); push(@obst_header, "int is_$op(const ir_node *n);\n"); - $cmp_attr_func = 0; - # create compare attribute function if needed - if (exists($n{"cmp_attr"}) || defined($default_cmp_attr)) { + my $attr_type= $n{"attr_type"}; + if(!defined($attr_type)) { + $attr_type = $default_attr_type; + } + + # determine hash function + my $hash_func; + if (exists($n{"hash_func"})) { + $hash_func = $n{"hash_func"}; + } + + # determine compare function + my $cmp_attr_func; + if (exists($n{"cmp_attr"})) { + my $cmpcode = $n{"cmp_attr"}; + push(@obst_cmp_attr, "static int cmp_attr_$op(ir_node *a, ir_node *b) {\n"); - push(@obst_cmp_attr, "\t$arch\_attr_t *attr_a = get_$arch\_attr(a);\n"); - push(@obst_cmp_attr, "\t$arch\_attr_t *attr_b = get_$arch\_attr(b);\n"); - push(@obst_cmp_attr, "\t(void) attr_a;\n"); - push(@obst_cmp_attr, "\t(void) attr_b;\n"); - if(exists($n{"cmp_attr"})) { - push(@obst_cmp_attr, "\t".$n{"cmp_attr"}."\n"); + if($cmpcode =~ m/attr_a/) { + push(@obst_cmp_attr, "\t${attr_type} *attr_a = get_irn_generic_attr(a);\n"); } else { - push(@obst_cmp_attr, "\t$default_cmp_attr\n"); + push(@obst_cmp_attr, "\t(void) a;\n"); } + if($cmpcode =~ m/attr_b/) { + push(@obst_cmp_attr, "\t${attr_type} *attr_b = get_irn_generic_attr(b);\n"); + } else { + push(@obst_cmp_attr, "\t(void) b;\n"); + } + push(@obst_cmp_attr, "\t${cmpcode}\n"); push(@obst_cmp_attr, "}\n\n"); - $cmp_attr_func = 1; + $cmp_attr_func = "cmp_attr_${op}"; + } else { + if(defined($compare_attr{${attr_type}})) { + $cmp_attr_func = $compare_attr{${attr_type}}; + } else { + die "Fatal error: No compare function defined for ${attr_type} attributes."; + } } if (exists($n{"rd_constructor"}) && $n{"rd_constructor"} =~ /^NONE$/i) { # we explicitly skip the constructor if the specification entry says NONE - } - else { - $n{"comment"} = "construct $op" if(!exists($n{"comment"})); - $n{"comment"} =~ s/^"|"$//g; # remove " - $n{"comment"} = "/* ".$n{"comment"}." */\n"; - push(@obst_constructor, $n{"comment"}); + } else { + my $comment = $n{"comment"}; + if(!exists($n{"comment"})) { + $comment = "construct ${orig_op} node"; + } + $comment = + "/**\n". + " * ${comment}\n". + " */\n"; + + push(@obst_constructor, $comment); # create constructor head my $complete_args = ""; - my $arg_names = ""; $temp = ""; - $temp = "ir_node *new_rd_$op(dbg_info *db, ir_graph *irg, ir_node *block"; - if (!exists($n{"args"}) || $n{"args"} =~ /^DEFAULT$/i) { # default args - if ($arity !~ /^\d+$/) { - print "DEFAULT args require numeric arity (0, 1, 2, ...)! Ignoring op $orig_op!\n"; - next; + $temp = "ir_node *new_bd_$op(dbg_info *db, ir_node *block"; + if (!exists($n{"args"})) { # default args + if ($arity == $ARITY_VARIABLE) { + $complete_args = ", int arity, ir_node *in[]"; + } elsif ($arity == $ARITY_DYNAMIC) { + $complete_args = ""; + } else { + for (my $i = 0; $i < $arity; $i++) { + my $opname = "op${i}"; + if (exists($n{"ins"})) { + my @ins = @{ $n{"ins"} }; + $opname = $ins[$i]; + } + + $complete_args .= ", ir_node *${opname}"; + } } - for (my $i = 1; $i <= $arity; $i++) { - $complete_args .= ", ir_node *op".$i; - $arg_names .= ", op".$i; + if ($out_arity == $ARITY_VARIABLE) { + $complete_args .= ", int n_res"; } + if (!defined($known_mode)) { $complete_args .= ", ir_mode *mode"; - $arg_names .= ", mode"; } - } - else { # user defined args + } else { # user defined args for my $href (@{ $n{"args"} }) { $href->{"type"} .= " " if ($href->{"type"} !~ / [*]?$/); # put a space between name and type if there is none at the end $complete_args .= ", ".$href->{"type"}.$href->{"name"}; - $arg_names .= ", ".$href->{"name"}; } } @@ -174,29 +353,45 @@ foreach my $op (keys(%nodes)) { $complete_args .= ", ".$n{"attr"}; } - # $complete_args = substr($complete_args, 2); $temp .= "$complete_args)"; - push(@obst_constructor, $temp." {\n"); - push(@obst_header, $n{"comment"}); + push(@obst_constructor, $temp."\n{\n"); + push(@obst_header, $comment); push(@obst_header, $temp.";\n"); # emit constructor code - if (!exists($n{"rd_constructor"}) || $n{"rd_constructor"} =~ /^DEFAULT$/i) { # default constructor - if ($arity !~ /^\d+$/) { - print "DEFAULT rd_constructor requires numeric arity! Ignoring op $orig_op!\n"; - next; + if (!exists($n{"rd_constructor"})) { # default constructor + $temp = "\tir_node *res;\n"; + $temp .= "\tir_op *op = op_${op};\n"; + $temp .= "\tint flags = 0;\n"; + + if($arity == $ARITY_DYNAMIC) { + $temp .= "\tint arity = -1;\n"; + $temp .= "\tir_node **in = NULL;\n"; + } elsif($arity == $ARITY_VARIABLE) { + } else { + $temp .= "\tint arity = $arity;\n"; + if($arity > 0) { + $temp .= "\tir_node *in[$arity];\n"; + } else { + $temp .= "\tir_node **in = NULL;\n"; + } + } + if($out_arity == $ARITY_DYNAMIC) { + $temp .= "\tint n_res = -1;\n"; + } elsif($out_arity == $ARITY_VARIABLE) { + } else { + $temp .= "\tint n_res = ${out_arity};\n"; } - $temp = "\tir_node *res;\n"; - $temp .= "\tir_node *in[$arity];\n" if ($arity > 0); - $temp .= "\tint flags = 0;\n"; - $temp .= "\t$arch\_attr_t *attr;\n" if (exists($n{"init_attr"})); + if (defined($known_mode)) { + $temp .= "\tir_mode *mode = ${known_mode};\n"; + } - my $exec_units = "NULL"; # set up static variables for cpu execution unit assigments if (exists($n{"units"})) { $temp .= gen_execunit_list_initializer($n{"units"}); - $exec_units = "_exec_units"; + } else { + $temp .= "\tstatic const be_execution_unit_t ***exec_units = NULL;\n"; } undef my $in_req_var; @@ -212,134 +407,121 @@ foreach my $op (keys(%nodes)) { undef my @out; @out = @{ $req{"out"} } if exists(($req{"out"})); + for(my $idx = 0; $idx < $#in; $idx++) { + my $req = $in[$idx]; + generate_requirements($req, \%n, $op, $idx, 1); + } + for(my $idx = 0; $idx < $#out; $idx++) { + my $req = $out[$idx]; + generate_requirements($req, \%n, $op, $idx, 0); + } + if (@in) { - $in_req_var = "_in_req_$op"; - $temp .= "\tstatic const $arch\_register_req_t *".$in_req_var."[] =\n"; + if($arity >= 0 && scalar(@in) != $arity) { + die "Fatal error: Arity and number of in requirements don't match for ${op}\n"; + } + + $temp .= "\tstatic const arch_register_req_t *in_reqs[] =\n"; $temp .= "\t{\n"; for ($idx = 0; $idx <= $#in; $idx++) { - $temp .= "\t\t".$op."_reg_req_in_".$idx.",\n"; + my $req = $in[$idx]; + my $reqstruct = generate_requirements($req, \%n, $op, $idx, 1); + $temp .= "\t\t& ${reqstruct},\n"; } $temp .= "\t};\n"; + } else { + if($arity > 0) { + die "Fatal error: need in requirements for ${op}\n"; + } + $temp .= "\tstatic const arch_register_req_t **in_reqs = NULL;\n"; } if (@out) { - $out_req_var = "_out_req_$op"; + if($out_arity >= 0 && scalar(@out) != $out_arity) { + die "Fatal error: Out-Arity and number of out requirements don't match for ${op}\n"; + } - $temp .= "\tstatic const $arch\_register_req_t *".$out_req_var."[] =\n"; + $temp .= "\tstatic const arch_register_req_t *out_reqs[] =\n"; $temp .= "\t{\n"; for ($idx = 0; $idx <= $#out; $idx++) { - $temp .= "\t\t".$op."_reg_req_out_".$idx.",\n"; + my $req = $out[$idx]; + my $reqstruct = generate_requirements($req, \%n, $op, $idx, 0); + $temp .= "\t\t& ${reqstruct},\n"; } $temp .= "\t};\n"; + } else { + if($out_arity > 0) { + die "Fatal error: need out requirements for ${op}\n"; + } + $temp .= "\tstatic const arch_register_req_t **out_reqs = NULL;\n"; } + } else { + $temp .= "\tstatic const arch_register_req_t **in_reqs = NULL;\n"; + $temp .= "\tstatic const arch_register_req_t **out_reqs = NULL;\n"; + } + if(exists($n{"init_attr"})) { + $temp .= "\t${attr_type} *attr;\n"; } $temp .= "\n"; - $temp .= "\tif (!op_$op) {\n"; - $temp .= "\t\tassert(0);\n"; - $temp .= "\t\treturn NULL;\n"; - $temp .= "\t}\n\n"; - for (my $i = 1; $i <= $arity; $i++) { - $temp .= "\tin[".($i - 1)."] = op".$i.";\n"; + + if($arity > 0) { + $temp .= "\t/* construct in array */\n"; + for (my $i = 0; $i < $arity; $i++) { + my $opname = "op${i}"; + if (exists($n{"ins"})) { + my @ins = @{ $n{"ins"} }; + $opname = $ins[$i]; + } + + $temp .= "\tin[${i}] = ${opname};\n"; + } + $temp .= "\n"; } # set flags if (exists($n{"irn_flags"})) { + $temp .= "\t/* flags */\n"; foreach my $flag (split(/\|/, $n{"irn_flags"})) { if ($flag eq "R") { - $temp .= "\tflags |= arch_irn_flags_rematerializable; /* op can be easily recalculated */\n"; - } - elsif ($flag eq "N") { - $temp .= "\tflags |= arch_irn_flags_dont_spill; /* op is NOT spillable */\n"; - } - elsif ($flag eq "I") { - $temp .= "\tflags |= arch_irn_flags_ignore; /* ignore op for register allocation */\n"; - } - elsif ($flag eq "S") { - $temp .= "\tflags |= arch_irn_flags_modify_sp; /* op modifies stack pointer */\n"; + $temp .= "\tflags |= arch_irn_flags_rematerializable;\n"; + } elsif ($flag eq "N") { + $temp .= "\tflags |= arch_irn_flags_dont_spill;\n"; + } else { + die "Fatal error: unknown flag $flag for ${op}\n"; } } + $temp .= "\n"; } - my $in_param; - my $out_param; - # allocate memory and set pointer to register requirements - if (exists($n{"reg_req"})) { - my %req = %{ $n{"reg_req"} }; - - undef my @in; - @in = @{ $req{"in"} } if (exists($req{"in"})); - undef my @out; - @out = @{ $req{"out"} } if exists(($req{"out"})); - - if (@in) { - $in_param = $in_req_var; - } - else { - $in_param = "NULL"; - } - - if (@out) { - $n_res = $#out + 1; - $out_param = "$out_req_var, $exec_units, $n_res"; - } - else { - $out_param = "NULL, $exec_units, 0"; - } - } - else { - $in_param = "NULL"; - $out_param = "NULL, $exec_units, 0"; - } - $temp .= "\n\t/* create node */\n"; - - my $latency = 1; - if (exists($n{"latency"})) { - $latency = $n{"latency"}; - } + $temp .= "\t/* create node */\n"; + $temp .= "\tassert(op != NULL);\n"; + $temp .= "\tres = new_ir_node(db, current_ir_graph, block, op, mode, arity, in);\n"; + $temp .= "\n"; - my $mode = "mode"; - if (defined($known_mode)) { - $mode = $known_mode; + $temp .= "\t/* init node attributes */\n"; + # lookup init function + my $attr_init_code = $init_attr{$attr_type}; + if(!defined($attr_init_code)) { + die "Fatal error: Couldn't find attribute initialisation code for type '${attr_type}'"; } - $temp .= "\tres = new_ir_node(db, irg, block, op_$op, $mode, $arity, ".($arity > 0 ? "in" : "NULL").");\n"; - - $temp .= "\n\t/* init node attributes */\n"; - $temp .= "\tinit_$arch\_attributes(res, flags, $in_param, $out_param, $latency);\n"; - - # set flags for outs - if ($#out_flags >= 0) { - $temp .= "\n\t/* set flags for outs */\n"; - for (my $idx = 0; $idx <= $#out_flags; $idx++) { - my $flags = ""; - my $prefix = ""; - - foreach my $flag (split(/\|/, $out_flags[$idx])) { - if ($flag eq "I") { - $flags .= $prefix."arch_irn_flags_ignore"; - $prefix = " | "; - } - elsif ($flag eq "S") { - $flags .= $prefix."arch_irn_flags_modify_sp"; - $prefix = " | "; - } - } - - $temp .= "\tset_$arch\_out_flags(res, $flags, $idx);\n"; - } + $temp .= "${attr_init_code}\n"; + if(defined($custom_init_attr_func)) { + $temp .= &$custom_init_attr_func(\%n, $op); } - + $temp .= "\n"; if (exists($n{"init_attr"})) { - $temp .= "\tattr = get_$arch\_attr(res);\n"; - $temp .= $n{"init_attr"}."\n"; + $temp .= "\tattr = get_irn_generic_attr(res);\n"; + $temp .= "\t".$n{"init_attr"}."\n"; } - $temp .= "\n\t/* optimize node */\n"; + $temp .= "\t/* optimize node */\n"; $temp .= "\tres = optimize_node(res);\n"; - $temp .= "\tirn_vrfy_irg(res, irg);\n\n"; + $temp .= "\tirn_vrfy_irg(res, current_ir_graph);\n"; + $temp .= "\n"; - $temp .= "\n\treturn res;\n"; + $temp .= "\treturn res;\n"; push(@obst_constructor, $temp); } @@ -357,17 +539,40 @@ foreach my $op (keys(%nodes)) { push(@obst_new_irop, "\n\tmemset(&ops, 0, sizeof(ops));\n"); + push(@obst_new_irop, "\tops.be_ops = be_ops;\n"); push(@obst_new_irop, "\tops.dump_node = $arch\_dump_node;\n"); - if ($cmp_attr_func) { - push(@obst_new_irop, "\tops.node_cmp_attr = cmp_attr_$op;\n"); + if (defined($cmp_attr_func)) { + push(@obst_new_irop, "\tops.node_cmp_attr = ${cmp_attr_func};\n"); + } + my $copy_attr_func = $copy_attr{$attr_type}; + if (!defined($copy_attr_func)) { + $copy_attr_func = $default_copy_attr; + } + if (defined($copy_attr_func)) { + push(@obst_new_irop, "\tops.copy_attr = ${copy_attr_func};\n"); + } + if (defined($hash_func)) { + push(@obst_new_irop, "\tops.hash = ${hash_func};\n"); } $n_opcodes++; + my $n_res = $out_arity; + if($n_res < 0) { + $n_res = "20"; # hacky.... + } $temp = "\top_$op = new_ir_op(cur_opcode + iro_$op, \"$op\", op_pin_state_".$n{"state"}.", ".$n{"op_flags"}; - $temp .= "|M, ".translate_arity($arity).", 0, sizeof($arch\_attr_t) + $n_res * sizeof(arch_register_t *), &ops);\n"; + $temp .= "|M, ".translate_arity($arity).", 0, sizeof(${attr_type}), &ops);\n"; push(@obst_new_irop, $temp); - push(@obst_new_irop, "\tset_op_tag(op_$op, &$arch\_op_tag);\n"); + push(@obst_new_irop, "\tset_op_tag(op_$op, $arch\_op_tag);\n"); + if(defined($default_op_attr_type)) { + push(@obst_new_irop, "\tattr = &attrs[iro_$op];\n"); + if(defined($n{op_attr_init})) { + push(@obst_new_irop, "\t".$n{op_attr_init}."\n"); + } + push(@obst_new_irop, "\tset_op_attr(op_$op, attr);\n"); + } + push(@obst_enum_op, "\tiro_$op,\n"); push(@obst_header, "\n"); @@ -379,9 +584,9 @@ push(@obst_enum_op, "\n} $arch\_opcodes;\n\n"); # emit the code -open(OUT, ">$target_c") || die("Could not open $target_c, reason: $!\n"); +open(OUT, ">$target_c") || die("Fatal error: Could not open $target_c, reason: $!\n"); -print OUT "#include \"gen_$arch\_regalloc_if_t.h\"\n\n"; +print OUT "#include \"gen_$arch\_regalloc_if.h\"\n\n"; print OUT @obst_cmp_attr; print OUT "\n"; print OUT @obst_opvar; @@ -416,10 +621,11 @@ if (length($arch) >= 4) { $d = uc(substr($arch, 3, 1)); } -print OUT "static unsigned $arch\_op_tag = FOURCC('$a', '$b', '$c', '$d');\n"; - print OUT<$target_h") || die("Could not open $target_h, reason: $!\n"); +open(OUT, ">$target_h") || die("Fatal error: Could not open $target_h, reason: $!\n"); + +my $creation_time = localtime(time()); +my $tmp = uc($arch); + +print OUT<{"reg_req"}{"$inout"})) { + my @reqs = @{ $n->{"reg_req"}{"$inout"} }; + + for (my $idx = 0; $idx <= $#reqs; $idx++) { + my $class = undef; + my ($req,) = split(/:/, $reqs[$idx]); + + if ($req eq "none") { + $class = "none"; + } elsif (is_reg_class($req)) { + $class = $req; + } else { + my @regs = split(/ /, $req); +GET_CLASS: foreach my $reg (@regs) { + if ($reg =~ /!?(in|out)\_r\d+/ || $reg =~ /!in/) { + $class = "UNKNOWN_CLASS"; + } else { + $class = get_reg_class($reg); + if (!defined $class) { + die("Fatal error: Could not get ".uc($inout)." register class for '$op' pos $idx (reg $reg) ... exiting.\n"); + } else { + last GET_CLASS; + } # !defined class + } # if (reg =~ ... + } # foreach + } # if + + push(@idx_class, $class); + } # for + } # if + + return @idx_class; +} + +### +# Generates the function for a given $op and a given IN-index +# which returns a subset of possible register from a register class +# @return classname from which the subset is derived or undef and +# pos which corresponds to in/out reference position or undef +### +sub build_subset_class_func { + my $neg = undef; + my $class = undef; + my $has_limit = 0; + my $limit_name; + my $same_pos = 0; + my $different_pos = 0; + my $temp; + my @obst_init; + my @obst_limits; + my @obst_ignore; + my @limit_array; + my $limit_reqs; #used for name mangling + + # build function header + my $node = shift; + my $op = shift; + my $idx = shift; + my $is_in = shift; + my @regs = split(/ /, shift); + my $flags = shift; + + my @idx_class = build_inout_idx_class($node, $op, !$is_in); + + # set/unset registers +CHECK_REQS: foreach (@regs) { + if (!$is_in && /(!)?in_r(\d+)/) { + my $bit_pos = 1 << ($2 - 1); + if ($different_pos & $bit_pos) { + if ($1) { + print STDERR "duplicate !in constraint\n"; + } else { + print STDERR "conflicting !in and in constraints\n"; + } + return (undef, undef, undef, undef); + } + + if ($same_pos & $bit_pos) { + if ($1) { + print STDERR "conflicting !in and in constraints\n"; + } else { + print STDERR "duplicate in constraint\n"; + } + return (undef, undef, undef, undef); + } + + if ($1) { + $different_pos |= $bit_pos; + } else { + $same_pos |= $bit_pos; + } + + $class = $idx_class[$2 - 1]; + next CHECK_REQS; + } + + # check for negate + if (substr($_, 0, 1) eq "!") { + if (defined($neg) && $neg == 0) { + # we have seen a positiv constraint as first one but this one is negative + # this doesn't make sense + print STDERR "Mixed positive and negative constraints for the same slot are not allowed.\n"; + return (undef, undef, undef, undef); + } + + if (!defined($neg)) { + $has_limit = 1; + } + + $_ = substr($_, 1); # skip '!' + $neg = 1; + } else { + if (defined($neg) && $neg == 1) { + # we have seen a negative constraint as first one but this one is positive + # this doesn't make sense + print STDERR "Mixed positive and negative constraints for the same slot are not allowed.\n"; + return (undef, undef, undef, undef); + } + + $has_limit = 1; + $neg = 0; + } + + # check if register belongs to one of the given classes + $temp = get_reg_class($_); + if (!defined($temp)) { + print STDERR "Unknown register '$_'!\n"; + return (undef, undef, undef, undef); + } + + # set class + if (!defined($class)) { + $class = $temp; + } elsif ($class ne $temp) { + # all registers must belong to the same class + print STDERR "Registerclass mismatch. '$_' is not member of class '$class'.\n"; + return (undef, undef, undef, undef); + } + + # calculate position inside the initializer bitfield (only 32 bits per + # element) + my $regidx = get_reg_index($_); + my $arrayp = $regidx / 32; + push(@{$limit_array[$arrayp]}, $_); + $limit_reqs .= "$_ "; + } + + # don't allow ignore regs in negative constraints + if($neg) { + my @cur_class = @{ $reg_classes{"$class"} }; + for (my $idx = 0; $idx <= $#cur_class; $idx++) { + if (defined($cur_class[$idx]{"type"}) && ($cur_class[$idx]{"type"} & 4)) { + my $reg = $cur_class[$idx]{"name"}; + my $regix = get_reg_index($reg); + my $arrayp = $regix / 32; + push(@{$limit_array[$arrayp]}, $reg); + $limit_reqs .= "$reg "; + } + } + } + + if ($has_limit == 1) { + $limit_name = "${arch}_limit_".mangle_requirements($limit_reqs, $class); + + if(defined($limit_bitsets{$limit_name})) { + $limit_name = $limit_bitsets{$limit_name}; + return ($class, $limit_name, $same_pos, $different_pos); + } + + $limit_bitsets{$limit_name} = $limit_name; + + push(@obst_limit_func, "static const unsigned " . $limit_name . "[] = { "); + my $first = 1; + my $limitbitsetlen = $regclass2len{$class}; + my $limitarraylen = ($limitbitsetlen+31) / 32; + for(my $i = 0; $i < $limitarraylen; $i++) { + + my $limitarraypart = $limit_array[$i]; + if($first) { + $first = 0; + } else { + push(@obst_limit_func, ", "); + } + my $temp; + if($neg) { + $temp = "0xFFFFFFFF"; + } + foreach my $reg (@{$limitarraypart}) { + if($neg) { + $temp .= " & ~"; + } elsif(defined($temp)) { + $temp .= " | "; + } + $temp .= "BIT(REG_".uc(${reg}).")"; + } + if(defined($temp)) { + push(@obst_limit_func, "${temp}"); + } else { + push(@obst_limit_func, "0"); + } + } + push(@obst_limit_func, " };\n"); + } + + return ($class, $limit_name, $same_pos, $different_pos); +} + +### +# Generate register requirements structure +### +sub generate_requirements { + my ($reqs, $flags) = split(/:/, shift); + my $node = shift; + my $op = shift; + my $idx = shift; + my $is_in = shift; + my $class = ""; + my $result; + + my @req_type_mask; + if (defined($flags)) { + foreach my $f (split(/|/, $flags)) { + if ($f eq "I") { + push(@req_type_mask, "arch_register_req_type_ignore"); + } elsif ($f eq "S") { + push(@req_type_mask, "arch_register_req_type_produces_sp"); + } + } + } + + if ($reqs eq "none") { + + $result = <