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Assert some island port constraints.

This commit is contained in:
Stephen Williams 2008-06-01 19:42:44 -07:00
parent 7898f4e402
commit 916f300448
1 changed files with 5 additions and 1 deletions
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6
vvp/vvp_island.cc
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@ -216,6 +216,7 @@ void vvp_island::add_port(const char*key, vvp_net_t*net)
void vvp_island::add_branch(vvp_island_branch*branch, const char*pa, const char*pb) void vvp_island::add_branch(vvp_island_branch*branch, const char*pa, const char*pb)
{ {
assert(ports_);
branch->a = ports_->sym_get_value(pa); branch->a = ports_->sym_get_value(pa);
branch->b = ports_->sym_get_value(pb); branch->b = ports_->sym_get_value(pb);
@ -248,7 +249,10 @@ void vvp_island::add_branch(vvp_island_branch*branch, const char*pa, const char*
vvp_net_t* vvp_island::find_port(const char*key) vvp_net_t* vvp_island::find_port(const char*key)
{ {
return ports_->sym_get_value(key); if (ports_ == 0)
return 0;
else
return ports_->sym_get_value(key);
} }
void vvp_island::compile_cleanup() void vvp_island::compile_cleanup()