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Merge pull request #1162 from whitequark/rtlil-case-attrs

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Allow attributes on individual switch cases in RTLIL
This commit is contained in:
Clifford Wolf 2019-07-09 16:56:29 +02:00 • committed by David Shah
parent 17e0cc010c
commit 76f20492a4
3 changed files with 15 additions and 5 deletions
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13
frontends/ilang/ilang_parser.y
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@ -282,14 +282,14 @@ proc_stmt:
} case_body sync_list TOK_END EOL;
switch_stmt:
attr_list TOK_SWITCH sigspec EOL {
TOK_SWITCH sigspec EOL {
RTLIL::SwitchRule *rule = new RTLIL::SwitchRule;
rule->signal = *$3;
rule->signal = *$2;
rule->attributes = attrbuf;
switch_stack.back()->push_back(rule);
attrbuf.clear();
delete $3;
} switch_body TOK_END EOL;
delete $2;
} attr_list switch_body TOK_END EOL;
attr_list:
/* empty */ |
@ -298,9 +298,11 @@ attr_list:
switch_body:
switch_body TOK_CASE {
RTLIL::CaseRule *rule = new RTLIL::CaseRule;
rule->attributes = attrbuf;
switch_stack.back()->back()->cases.push_back(rule);
switch_stack.push_back(&rule->switches);
case_stack.push_back(rule);
attrbuf.clear();
} compare_list EOL case_body {
switch_stack.pop_back();
case_stack.pop_back();
@ -319,12 +321,15 @@ compare_list:
/* empty */;
case_body:
case_body attr_stmt |
case_body switch_stmt |
case_body assign_stmt |
/* empty */;
assign_stmt:
TOK_ASSIGN sigspec sigspec EOL {
if (attrbuf.size() != 0)
rtlil_frontend_ilang_yyerror("dangling attribute");
case_stack.back()->actions.push_back(RTLIL::SigSig(*$2, *$3));
delete $2;
delete $3;