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[placer1] Ignore timing of TMG_IGNORE nets

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This commit is contained in:
Eddie Hung 2018-11-10 20:05:36 -08:00
parent 15d9b3d3cc
commit 200fb3f664
1 changed files with 5 additions and 5 deletions
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10
common/place_common.cc
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@ -28,19 +28,19 @@ NEXTPNR_NAMESPACE_BEGIN
wirelen_t get_net_metric(const Context *ctx, const NetInfo *net, MetricType type, float &tns) wirelen_t get_net_metric(const Context *ctx, const NetInfo *net, MetricType type, float &tns)
{ {
wirelen_t wirelength = 0; wirelen_t wirelength = 0;
Loc driver_loc;
bool driver_gb;
CellInfo *driver_cell = net->driver.cell; CellInfo *driver_cell = net->driver.cell;
if (!driver_cell) if (!driver_cell)
return 0; return 0;
if (driver_cell->bel == BelId()) if (driver_cell->bel == BelId())
return 0; return 0;
driver_gb = ctx->getBelGlobalBuf(driver_cell->bel); bool driver_gb = ctx->getBelGlobalBuf(driver_cell->bel);
driver_loc = ctx->getBelLocation(driver_cell->bel);
if (driver_gb) if (driver_gb)
return 0; return 0;
IdString clock_port;
bool driver_tmg_ignore = ctx->getPortTimingClass(driver_cell, net->driver.port, clock_port);
delay_t negative_slack = 0; delay_t negative_slack = 0;
delay_t worst_slack = std::numeric_limits<delay_t>::max(); delay_t worst_slack = std::numeric_limits<delay_t>::max();
Loc driver_loc = ctx->getBelLocation(driver_cell->bel);
int xmin = driver_loc.x, xmax = driver_loc.x, ymin = driver_loc.y, ymax = driver_loc.y; int xmin = driver_loc.x, xmax = driver_loc.x, ymin = driver_loc.y, ymax = driver_loc.y;
for (auto load : net->users) { for (auto load : net->users) {
if (load.cell == nullptr) if (load.cell == nullptr)
@ -48,7 +48,7 @@ wirelen_t get_net_metric(const Context *ctx, const NetInfo *net, MetricType type
CellInfo *load_cell = load.cell; CellInfo *load_cell = load.cell;
if (load_cell->bel == BelId()) if (load_cell->bel == BelId())
continue; continue;
if (ctx->timing_driven && type == MetricType::COST) { if (!driver_tmg_ignore && ctx->timing_driven && type == MetricType::COST) {
delay_t net_delay = ctx->predictDelay(net, load); delay_t net_delay = ctx->predictDelay(net, load);
auto slack = load.budget - net_delay; auto slack = load.budget - net_delay;
if (slack < 0) if (slack < 0)