commit 13a250107cf888f47f98f72c85941f669b87e22e
author Craig Topper <craig.topper@sifive.com> Sat Apr 17 10:47:04 2021 -0700
committer Copybara-Service <copybara-worker@google.com> Sat Apr 17 21:33:17 2021 -0700
tree 154109930865a7bd91ebdcfe2425cc150cf45881
parent 4effb8c5c843563b0fcc8703b50e9f12f856a948

[TableGen] Remove local SmallSet from TypeSetByHwMode::insert.

This keeps track of which modes are in VVT so we can find out
if a mode is missing later. But we can just ask VVT whether it
has a particular mode.

GitOrigin-RevId: a5e579cc2b8db6f088b7401623ad35d6c702c553

utils/TableGen/CodeGenDAGPatterns.cpp

diff --git a/utils/TableGen/CodeGenDAGPatterns.cpp b/utils/TableGen/CodeGenDAGPatterns.cpp
index 4ab2f1c..72fe9fa 100644
--- a/utils/TableGen/CodeGenDAGPatterns.cpp
+++ b/utils/TableGen/CodeGenDAGPatterns.cpp
@@ -111,10 +111,8 @@
   bool ContainsDefault = false;
   MVT DT = MVT::Other;
 
-  SmallSet<unsigned, 4> Modes;
   for (const auto &P : VVT) {
     unsigned M = P.first;
-    Modes.insert(M);
     // Make sure there exists a set for each specific mode from VVT.
     Changed |= getOrCreate(M).insert(P.second).second;
     // Cache VVT's default mode.
@@ -128,7 +126,7 @@
   // modes in "this" that do not exist in VVT.
   if (ContainsDefault)
     for (auto &I : *this)
-      if (!Modes.count(I.first))
+      if (!VVT.hasMode(I.first))
         Changed |= I.second.insert(DT).second;
 
   return Changed;