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ecp5: Don't reroute existing globals

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Signed-off-by: David Shah <dave@ds0.me>
This commit is contained in:
David Shah 2020-01-20 14:58:38 +00:00
parent 84fec7e82f
commit 9dc8e1e35d
1 changed files with 2 additions and 1 deletions
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3
ecp5/globals.cc
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@ -457,7 +457,8 @@ class Ecp5GlobalRouter
log_info("Promoting globals...\n");
auto clocks = get_clocks();
for (auto clock : clocks) {
bool is_noglobal = bool_or_default(clock->attrs, ctx->id("noglobal"), false);
bool is_noglobal = bool_or_default(clock->attrs, ctx->id("noglobal"), false) ||
bool_or_default(clock->attrs, ctx->id("ECP5_IS_GLOBAL"), false);
if (is_noglobal)
continue;
log_info(" promoting clock net %s to global network\n", clock->name.c_str(ctx));