X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ir%2Fbe%2Fscripts%2Fgenerate_emitter.pl;h=b05af7eaabea3db3b59c0061148458ef23c183a9;hb=c23b55879df97f49fc6f1e95651f9f28a980b620;hp=b007f64434d4e79aea8269de2699336762e1e7d8;hpb=bdaff6480b3794396e59837399b22f0c4d6aaa23;p=libfirm diff --git a/ir/be/scripts/generate_emitter.pl b/ir/be/scripts/generate_emitter.pl index b007f6443..b05af7eaa 100755 --- a/ir/be/scripts/generate_emitter.pl +++ b/ir/be/scripts/generate_emitter.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 C code which emits assembler code for the # assembler ir nodes. It takes a "emit" key from the node specification # and substitutes lines starting with . with a corresponding fprintf(). @@ -8,12 +27,17 @@ use strict; use Data::Dumper; +use File::Basename; -my $specfile = $ARGV[0]; -my $target_dir = $ARGV[1]; +my $myname = $0; +our $specfile = $ARGV[0]; +our $target_dir = $ARGV[1]; our $arch; +our $comment_string = "/*"; +our $comment_string_end = "*/" ; our %nodes; +our $new_emit_syntax = 0; # include spec file @@ -21,12 +45,24 @@ 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 $return; } use strict "subs"; +if ($new_emit_syntax) { + my $newscript = dirname($myname) . "/generate_emitter_new.pl"; + unless ($return = do "$newscript") { + die "Fatal error: couldn't parse $newscript: $@" if $@; + die "Fatal error: couldn't do $newscript: $!" unless defined $return; + die "Fatal error: couldn't run $newscript" unless $return; + } + exit; +} + +my $comment_string_quoted = quotemeta($comment_string); + my $target_c = $target_dir."/gen_".$arch."_emitter.c"; my $target_h = $target_dir."/gen_".$arch."_emitter.h"; @@ -39,14 +75,21 @@ foreach my $op (keys(%nodes)) { my %n = %{ $nodes{"$op"} }; # skip this node description if no emit information is available - next if (!$n{"emit"} || length($n{"emit"}) < 1); + next if (!defined($n{"emit"})); $line = "static void emit_".$arch."_".$op."(const ir_node *n, $arch\_emit_env_t *env)"; + + push(@obst_register, " BE_EMIT($op);\n"); + + if($n{"emit"} eq "") { + push(@obst_func, $line." {\n"); + push(@obst_func, "}\n\n"); + next; + } + push(@obst_func, $line." {\n FILE *F = env->out;\n"); push(@obst_func, " char cmd_buf[256], cmnt_buf[256];\n"); push(@obst_func, " const lc_arg_env_t *arg_env = $arch\_get_arg_env();\n\n"); - push(@obst_register, " BE_EMIT($op);\n"); - my @emit = split(/\n/, $n{"emit"}); foreach my $template (@emit) { @@ -61,7 +104,8 @@ foreach my $op (keys(%nodes)) { my $cnt = 0; my $buf = 'cmd_buf'; - foreach $template (split(/\/\*/, $fmt, 2)) { + push(@obst_func, $indent."cmnt_buf[0] = '\\0';\n"); + foreach $template (split(/$comment_string_quoted/, $fmt, 2)) { my @params; my $res = ""; $cnt++; @@ -70,32 +114,39 @@ foreach my $op (keys(%nodes)) { if ($cnt == 2) { # add the comment begin string - $res .= "/*"; - $buf = "cmnt_buf"; + $res .= $comment_string; + $buf = "cmnt_buf"; } # substitute all format parameter - while ($template =~ /\%([ASD])(\d)|\%([COM])|\%(\w+)/) { + while ($template =~ /(\%\%)|\%([ASDX])(\d)|\%([COM])|\%(\w+)/) { $res .= $`; # get everything before the match - if ($1 && $1 eq "S") { + if ($1) { + $res .= "%%"; + } + elsif ($2 && $2 eq "S") { push(@params, "n"); - $res .= "%".$2."S"; # substitute %Sx with %xS + $res .= "%".$3."S"; # substitute %Sx with %xS } - elsif ($1 && $1 eq "D") { + elsif ($2 && $2 eq "D") { push(@params, "n"); - $res .= "%".$2."D"; # substitute %Dx with %xD + $res .= "%".$3."D"; # substitute %Dx with %xD } - elsif ($1 && $1 eq "A") { - push(@params, "get_irn_n(n, ".($2 - 1).")"); + elsif ($2 && $2 eq "X") { + push(@params, "n"); + $res .= "%".$3."X"; # substitute %Xx with %xX + } + elsif ($2 && $2 eq "A") { + push(@params, "get_irn_n(n, ".($3 - 1).")"); $res .= "%+F"; } - elsif ($3) { + elsif ($4) { push(@params, "n"); - $res .= "%".$3; + $res .= "%".$4; } - elsif ($4) { # backend provided function to call, has to return a string - push(@params, $4."(n, env)"); + elsif ($5) { # backend provided function to call, has to return a string + push(@params, $5."(n, env)"); $res .= "\%s"; } @@ -108,56 +159,57 @@ foreach my $op (keys(%nodes)) { push(@obst_func, $indent.'lc_esnprintf(arg_env, '.$buf.', 256, "'.$res.'"'.$parm.');'."\n"); } + push(@obst_func, $indent.'lc_efprintf(arg_env, F, "\t%-35s %-60s '.$comment_string.' %+F (%+G) '.$comment_string_end.'\n", cmd_buf, cmnt_buf, n, n);'."\n"); } else { push(@obst_func, $template,"\n"); } } - push(@obst_func, ' lc_efprintf(arg_env, F, "\t%-35s %-60s /* %+F */\n", cmd_buf, cmnt_buf, n);'."\n"); push(@obst_func, "}\n\n"); } -open(OUT, ">$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<$target_c") || die("Could not open $target_c, reason: $!\n"); +open(OUT, ">$target_c") || die("Fatal error: Could not open $target_c, reason: $!\n"); $creation_time = localtime(time()); print OUT<