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Merge pull request #1428 from YosysHQ/clifford/fixbtor 

Fix btor back-end to use "state" instead of "input" for undef init bits
This commit is contained in:
Clifford Wolf 2019-10-02 13:48:09 +02:00 committed by GitHub
parent da347b9f7e a84a2d74c7
commit 6028f5df1a
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 9 additions and 6 deletions
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13
backends/btor/btor.cc
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@ -569,7 +569,7 @@ struct BtorWorker
int nid_init_val = -1;
if (!initval.is_fully_undef())
nid_init_val = get_sig_nid(initval);
nid_init_val = get_sig_nid(initval, -1, false, true);
int sid = get_bv_sid(GetSize(sig_q));
int nid = next_nid++;
@ -681,7 +681,7 @@ struct BtorWorker
{
if (verbose)
btorf("; initval = %s\n", log_signal(firstword));
nid_init_val = get_sig_nid(firstword);
nid_init_val = get_sig_nid(firstword, -1, false, true);
}
else
{
@ -693,8 +693,8 @@ struct BtorWorker
if (thisword.is_fully_undef())
continue;
Const thisaddr(i, abits);
int nid_thisword = get_sig_nid(thisword);
int nid_thisaddr = get_sig_nid(thisaddr);
int nid_thisword = get_sig_nid(thisword, -1, false, true);
int nid_thisaddr = get_sig_nid(thisaddr, -1, false, true);
int last_nid_init_val = nid_init_val;
nid_init_val = next_nid++;
if (verbose)
@ -792,7 +792,7 @@ struct BtorWorker
cell_recursion_guard.erase(cell);
}
int get_sig_nid(SigSpec sig, int to_width = -1, bool is_signed = false)
int get_sig_nid(SigSpec sig, int to_width = -1, bool is_signed = false, bool is_init = false)
{
int nid = -1;
sigmap.apply(sig);
@ -823,6 +823,9 @@ struct BtorWorker
int sid = get_bv_sid(GetSize(sig));
int nid_input = next_nid++;
if (is_init)
btorf("%d state %d\n", nid_input, sid);
else
btorf("%d input %d\n", nid_input, sid);
int nid_masked_input;