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Yosys can now parse https://github.com/verilog-to-routing/vtr-verilog-to-routing/blob/master/vtr_flow/primitives.v ,

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(specify block ignored).
Must use 'read_verilog -defer' due to a parameter not assigned a default value.
This commit is contained in:
Udi Finkelstein 2018-08-20 00:08:08 +03:00
parent 28cfc75a90
commit 95241c8f4d
1 changed files with 22 additions and 10 deletions
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32
frontends/verilog/verilog_parser.y
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@ -654,7 +654,7 @@ specify_item:
// | pulsestyle_declaration
// | showcancelled_declaration
| path_declaration
// | system_timing_declaration
| system_timing_declaration
;
specparam_declaration:
@ -693,8 +693,8 @@ simple_path_declaration :
;
path_delay_value :
//list_of_path_delay_expressions
'(' list_of_path_delay_expressions ')'
list_of_path_delay_expressions |
%prec '(' list_of_path_delay_expressions ')'
;
list_of_path_delay_expressions :
@ -724,12 +724,17 @@ parallel_path_description :
'(' specify_input_terminal_descriptor opt_polarity_operator '=' '>' specify_output_terminal_descriptor ')' ;
full_path_description :
'(' list_of_path_inputs opt_polarity_operator '*' '>' list_of_path_outputs ')' ;
'(' list_of_path_inputs '*' '>' list_of_path_outputs ')' ;
// This was broken into 2 rules to solve shift/reduce conflicts
list_of_path_inputs :
specify_input_terminal_descriptor |
list_of_path_inputs ',' specify_input_terminal_descriptor ;
specify_input_terminal_descriptor opt_polarity_operator |
specify_input_terminal_descriptor more_path_inputs opt_polarity_operator ;
more_path_inputs :
',' specify_input_terminal_descriptor |
more_path_inputs ',' specify_input_terminal_descriptor ;
list_of_path_outputs :
specify_output_terminal_descriptor |
list_of_path_outputs ',' specify_output_terminal_descriptor ;
@ -747,11 +752,18 @@ specify_input_terminal_descriptor :
specify_output_terminal_descriptor :
TOK_ID ;
/*
system_timing_declaration :
;
*/
TOK_ID '(' system_timing_args ')' ';' ;
system_timing_arg :
TOK_POSEDGE TOK_ID |
TOK_NEGEDGE TOK_ID |
expr ;
system_timing_args :
system_timing_arg |
system_timing_args ',' system_timing_arg ;
/*
t_path_delay_expression :
path_delay_expression;