Bug 1720781 - Part 1: Remove no longer needed CheckObjCoercible. r=iain

This check is no longer needed after <tc39/ecma262#2267>. Differential Revision: https://phabricator.services.mozilla.com/D120609
mozilla · Jul 23, 2021 · 7475a0a · 7475a0a
1 parent a4a5bf6
commit 7475a0a
Showing 1 changed file with 0 additions and 6 deletions.
diff --git a/js/src/frontend/ElemOpEmitter.cpp b/js/src/frontend/ElemOpEmitter.cpp
@@ -29,12 +29,6 @@ bool ElemOpEmitter::prepareForObj() {
 bool ElemOpEmitter::prepareForKey() {
   MOZ_ASSERT(state_ == State::Obj);
 
-  if (!isSuper() && isIncDec()) {
-    if (!bce_->emit1(JSOp::CheckObjCoercible)) {
-      //            [stack] OBJ
-      return false;
-    }
-  }
   if (isCall()) {
     if (!bce_->emit1(JSOp::Dup)) {
       //            [stack] # if Super