luke
/
OpenSTA
mirror of https://github.com/The-OpenROAD-Project/OpenSTA.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Search::pathClkPathArrival use ClkInfo:::crprClkPath

This commit is contained in:
James Cherry 2020-09-16 12:41:14 -07:00
parent 0eea513a90
commit 285dc50ce0
1 changed files with 12 additions and 12 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

24
search/Search.cc
View File

@ -2258,16 +2258,18 @@ Search::clkPathArrival(const Path *clk_path,
Arrival
Search::pathClkPathArrival(const Path *path) const
{
PathRef src_clk_path;
pathClkPathArrival1(path, src_clk_path);
if (!src_clk_path.isNull())
return clkPathArrival(&src_clk_path);
else {
// Check for input arrival clock.
ClockEdge *clk_edge = path->clkEdge(this);
if (clk_edge)
return clk_edge->time();
// Use crpr clk path to find the clock arrival at the source register.
ClkInfo *clk_info = path->clkInfo(this);
if (clk_info->isPropagated()) {
PathVertexRep &crpr_clk_path = clk_info->crprClkPath();
if (!crpr_clk_path.isNull()) {
return crpr_clk_path.arrival(this);
}
}
// Check for input arrival clock.
ClockEdge *clk_edge = path->clkEdge(this);
if (clk_edge)
return clk_edge->time();
return 0.0;
}
@ -2450,7 +2452,6 @@ Search::thruClkInfo(PathVertex *from_path,
// the clkinfo.
const Pin *gen_clk_src = nullptr;
if (from_clk_info->isGenClkSrcPath()
&& sdc_->crprActive()
&& sdc_->isClock(to_pin)) {
// Don't care that it could be a regular clock root.
gen_clk_src = to_pin;
@ -2458,8 +2459,7 @@ Search::thruClkInfo(PathVertex *from_path,
}
PathVertex *to_crpr_clk_path = nullptr;
if (sdc_->crprActive()
&& to_vertex->isRegClk()) {
if (to_vertex->isRegClk()) {
to_crpr_clk_path = from_path;
changed = true;
}