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Change Dfg pattern dumps to use --dump-dfg-patterns (#7455)

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Dumping Dfg patterns can take a non-trivial amount of time, so do it
only with --dump-dfg-patterns, instead of with --stats.
Also further improve dumping format.
This commit is contained in:
Geza Lore
2026-04-21 12:07:19 +01:00
committed by GitHub
parent 2ef979a39c
commit 2b9d006097
11 changed files with 301 additions and 247 deletions
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src/V3DfgOptimizer.cpp
+2 -2
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@@ -154,9 +154,9 @@ class DataflowOptimize final {
for (auto& cp : acyclicComps) V3DfgPasses::peephole(*cp, m_ctx.m_peepholeContext);
endOfStage("peephole", dfg, acyclicComps);
// Accumulate patterns for reporting
if (v3Global.opt.stats()) {
if (v3Global.opt.dumpDfgPatterns()) {
V3DfgPasses::dumpPatterns(acyclicComps);
endOfStage("patterns");
endOfStage("dumpPatterns");
}
for (auto& cp : acyclicComps) V3DfgPasses::pushDownSels(*cp, m_ctx.m_pushDownSelsContext);
endOfStage("pushDownSels", dfg, acyclicComps);