[PATCH] D59143: [RegisterCoalescer] Limit the number of joins for large live interval with many valnos.

[Chandler Carruth via Phabricator via llvm-commits]

chandlerc added inline comments.


================
Comment at: llvm/trunk/lib/CodeGen/RegisterCoalescer.cpp:3280-3281
+    return false;
+  if (LargeLIVisitCounter[LI.reg] < LargeIntervalFreqThreshold) {
+    LargeLIVisitCounter[LI.reg]++;
+    return false;
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This does the lookup in the hashtable twice, instead bind it to a reference?


Repository:
  rL LLVM

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D59143/new/

https://reviews.llvm.org/D59143