[PATCH] D136267: [AMDGPU] Speedup GCNDownwardRPTracker::advanceBeforeNext

[Valery Pykhtin via Phabricator via llvm-commits]

vpykhtin added inline comments.


================
Comment at: llvm/lib/Target/AMDGPU/GCNRegPressure.cpp:387
+      if (It != LiveRegs.end() && It->second.none())
+        LiveRegs.erase(It);
     } else if (!LI.liveAt(SI)) {
----------------
arsenm wrote:
> I don't understand why LiveRegs is a map in the first place
The map consists of pairs register:lanemask


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D136267/new/

https://reviews.llvm.org/D136267