Remove the explicit SDNodeIterator::operator= in favor of the implicit default

There doesn't seem to be any need to assert that iterator assignment is
between iterators over the same node - if you want to reuse an iterator
variable to iterate another node, that's perfectly acceptable. Just
don't mix comparisons between iterators into disjoint sequences, as
usual.

llvm-svn: 231135

1 files changed, 2 insertions, 0 deletions

diff --git a/llvm/utils/TableGen/AsmMatcherEmitter.cpp b/llvm/utils/TableGen/AsmMatcherEmitter.cpp
index 909ecd4665f..12bb075eec9 100644
--- a/llvm/utils/TableGen/AsmMatcherEmitter.cpp
+++ b/llvm/utils/TableGen/AsmMatcherEmitter.cpp
@@ -441,6 +441,8 @@ struct MatchableInfo {
     : AsmVariantID(0), AsmString(Alias->AsmString), TheDef(Alias->TheDef), DefRec(Alias.release()) {
   }
 
+  MatchableInfo(const MatchableInfo&) = default;
+
   ~MatchableInfo() {
     delete DefRec.dyn_cast<const CodeGenInstAlias*>();
   }