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Added handling of multiple async paths in proc_arst

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This commit is contained in:
Clifford Wolf 2013-10-19 00:50:13 +02:00
parent 8e8f1994b8
commit 56ea230676
2 changed files with 21 additions and 8 deletions
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12
passes/proc/proc_arst.cc
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@ -23,6 +23,9 @@
#include <stdlib.h>
#include <stdio.h>
// defined in proc_clean.cc
extern void proc_clean_case(RTLIL::CaseRule *cs, bool &did_something, int &count, int max_depth);
static bool check_signal(RTLIL::Module *mod, RTLIL::SigSpec signal, RTLIL::SigSpec ref, bool &polarity)
{
if (signal.width != 1)
@ -132,10 +135,18 @@ static void eliminate_const(RTLIL::Module *mod, RTLIL::CaseRule *cs, RTLIL::SigS
eliminate_const(mod, cs2, const_sig, polarity);
}
}
int dummy_count = 0;
bool did_something = true;
while (did_something) {
did_something = false;
proc_clean_case(cs, did_something, dummy_count, 1);
}
}
static void proc_arst(RTLIL::Module *mod, RTLIL::Process *proc, SigMap &assign_map)
{
restart_proc_arst:
if (proc->root_case.switches.size() != 1)
return;
@ -173,6 +184,7 @@ static void proc_arst(RTLIL::Module *mod, RTLIL::Process *proc, SigMap &assign_m
action.second = rval;
}
eliminate_const(mod, &proc->root_case, root_sig, polarity);
goto restart_proc_arst;
}
}
}