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Improved some warning messages

This commit is contained in:
Clifford Wolf 2014-12-27 03:40:27 +01:00
parent 12ca6538a4
commit 7751c491fb
1 changed files with 18 additions and 6 deletions
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18
frontends/verilog/verilog_lexer.l
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@ -254,8 +254,12 @@ supply1 { return TOK_SUPPLY1; }
}
"/*"[ \t]*(synopsys|synthesis)[ \t]*translate_off[ \t]*"*/" {
static bool printed_warning = false;
if (!printed_warning) {
log_warning("Found one of those horrible `(synopsys|synthesis) translate_off' comments.\n"
"It is strongly suggested to use `ifdef constructs instead!\n");
"Yosys does support them but it is recommended to use `ifdef constructs instead!\n");
printed_warning = true;
}
BEGIN(SYNOPSYS_TRANSLATE_OFF);
}
<SYNOPSYS_TRANSLATE_OFF>. /* ignore synopsys translate_off body */
@ -266,13 +270,21 @@ supply1 { return TOK_SUPPLY1; }
BEGIN(SYNOPSYS_FLAGS);
}
<SYNOPSYS_FLAGS>full_case {
static bool printed_warning = false;
if (!printed_warning) {
log_warning("Found one of those horrible `(synopsys|synthesis) full_case' comments.\n"
"It is strongly suggested to use verilog x-values and default branches instead!\n");
"Yosys does support them but it is recommended to use verilog `full_case' attributes instead!\n");
printed_warning = true;
}
return TOK_SYNOPSYS_FULL_CASE;
}
<SYNOPSYS_FLAGS>parallel_case {
static bool printed_warning = false;
if (!printed_warning) {
log_warning("Found one of those horrible `(synopsys|synthesis) parallel_case' comments.\n"
"It is strongly suggested to use verilog `parallel_case' attributes instead!\n");
"Yosys does support them but it is recommended to use verilog `parallel_case' attributes instead!\n");
printed_warning = true;
}
return TOK_SYNOPSYS_PARALLEL_CASE;
}
<SYNOPSYS_FLAGS>. /* ignore everything else */