Merge branch 'master' of github.com:steveicarus/iverilog
This commit is contained in:
Stephen Williams
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.TH iverilog 1 "Nov 8th, 2017" "" "Version %M.%n%E"
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.TH iverilog 1 "Sep 20th, 2019" "" "Version %M.%n%E"
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.SH NAME
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iverilog - Icarus Verilog compiler
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.SH SYNOPSIS
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.B iverilog
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[\-ESuVv] [\-Bpath] [\-ccmdfile|\-fcmdfile] [\-Dmacro[=defn]]
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[\-EiSuVv] [\-Bpath] [\-ccmdfile|\-fcmdfile] [\-Dmacro[=defn]]
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[\-Pparameter=value] [\-pflag=value] [\-dname]
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[\-g1995\:|\-g2001\:|\-g2005\:|\-g2005-sv\:|\-g2009\:|\-g2012\:|\-g<feature>]
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[\-Iincludedir] [\-mmodule] [\-M[mode=]file] [\-Nfile] [\-ooutputfilename]
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@ -80,6 +80,11 @@ use any of the new \fIIEEE1800\fP keywords.
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Enable or disable (default) support for Verilog\-AMS.
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Very little Verilog\-AMS specific functionality is currently supported.
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.TP 8
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.B -gassertions\fI|\fP-gno-assertions
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Enable (default) or disable SystemVerilog assertions. When enabled,
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assertion statements are elaborated. When disabled, assertion statements
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are parsed but ignored.
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.TP 8
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.B -gspecify\fI|\fP-gno-specify
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Enable or disable (default) specify block support. When enabled,
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specify block code is elaborated. When disabled, specify blocks are
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@ -151,6 +156,13 @@ for Verilog include files. The \fB\-I\fP switch may be used many times
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to specify several directories to search, the directories are searched
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in the order they appear on the command line.
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.TP 8
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.B -i
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Ignore missing modules. Normally it is an error if a module instantiation
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refers to an undefined module. This option causes the compiler to skip
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over that instantiation. It will also stop the compiler returning an
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error if there are no top level modules. This allows the compiler to be
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used to check incomplete designs for errors.
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.TP 8
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.B -l\fIfile\fP
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Add the specified file to the list of source files to be compiled,
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but mark it as a library file. All modules contained within that
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@ -578,7 +590,7 @@ Tips on using, debugging, and developing the compiler can be found at
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.SH COPYRIGHT
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.nf
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Copyright \(co 2002\-2017 Stephen Williams
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Copyright \(co 2002\-2019 Stephen Williams
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This document can be freely redistributed according to the terms of the
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GNU General Public License version 2.0
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2
main.cc
2
main.cc
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@ -1174,7 +1174,7 @@ int main(int argc, char*argv[])
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if (roots.empty()) {
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cerr << "No top level modules, and no -s option." << endl;
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return 1;
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return ignore_missing_modules ? 0 : 1;
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}
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62
parse.y
62
parse.y
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@ -666,6 +666,7 @@ static void current_function_set_statement(const YYLTYPE&loc, vector<Statement*>
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%type <specpath> specify_edge_path specify_edge_path_decl
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%type <real_type> non_integer_type
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%type <int_val> assert_or_assume
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%type <int_val> atom2_type
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%type <int_val> module_start module_end
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@ -714,6 +715,13 @@ source_text
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| /* empty */
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;
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assert_or_assume
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: K_assert
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{ $$ = 1; } /* IEEE1800-2012: Table 20-7 */
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| K_assume
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{ $$ = 4; } /* IEEE1800-2012: Table 20-7 */
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;
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assertion_item /* IEEE1800-2012: A.6.10 */
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: concurrent_assertion_item
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;
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@ -1830,18 +1838,60 @@ property_expr /* IEEE1800-2012 A.2.10 */
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;
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procedural_assertion_statement /* IEEE1800-2012 A.6.10 */
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: K_assert '(' expression ')' statement %prec less_than_K_else
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{ yyerror(@1, "sorry: Simple immediate assertion statements not implemented.");
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// $assertcontrol is not yet supported.
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: assert_or_assume '(' expression ')' statement_or_null %prec less_than_K_else
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{
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if (gn_assertions_flag) {
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list<PExpr*>arg_list;
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PCallTask*tmp1 = new PCallTask(lex_strings.make("$error"), arg_list);
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FILE_NAME(tmp1, @1);
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PCondit*tmp2 = new PCondit($3, $5, tmp1);
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FILE_NAME(tmp2, @1);
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$$ = tmp2;
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} else {
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$$ = 0;
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}
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| K_assert '(' expression ')' K_else statement
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{ yyerror(@1, "sorry: Simple immediate assertion statements not implemented.");
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}
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| assert_or_assume '(' expression ')' K_else statement_or_null
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{
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if (gn_assertions_flag) {
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PCondit*tmp = new PCondit($3, 0, $6);
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FILE_NAME(tmp, @1);
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$$ = tmp;
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} else {
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$$ = 0;
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}
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| K_assert '(' expression ')' statement K_else statement
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{ yyerror(@1, "sorry: Simple immediate assertion statements not implemented.");
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}
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| assert_or_assume '(' expression ')' statement_or_null K_else statement_or_null
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{
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if (gn_assertions_flag) {
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PCondit*tmp = new PCondit($3, $5, $7);
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FILE_NAME(tmp, @1);
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$$ = tmp;
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} else {
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$$ = 0;
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}
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}
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| K_cover '(' expression ')' statement_or_null
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// Coverage collection is not currently supported.
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{ $$ = 0; }
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| assert_or_assume '(' error ')' statement_or_null %prec less_than_K_else
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{ yyerror(@1, "error: Malformed conditional expression.");
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$$ = $5;
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}
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| assert_or_assume '(' error ')' K_else statement_or_null
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{ yyerror(@1, "error: Malformed conditional expression.");
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$$ = $6;
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}
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| assert_or_assume '(' error ')' statement_or_null K_else statement_or_null
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{ yyerror(@1, "error: Malformed conditional expression.");
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$$ = $5;
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}
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| K_cover '(' error ')' statement_or_null
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{ yyerror(@1, "error: Malformed conditional expression.");
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$$ = $5;
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}
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;
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/* The property_qualifier rule is as literally described in the LRM,
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