Remove `Push` (#2867)

Push and Pop have been superseded by tuples for their original
intended purpose of supporting multivalue. Pop is still used to
represent block arguments for exception handling, but there are no
plans to use Push for anything now or in the future.

1 files changed, 0 insertions, 3 deletions

diff --git a/src/ir/ExpressionManipulator.cpp b/src/ir/ExpressionManipulator.cpp
index 590d0c1ba..a9fd3c599 100644
--- a/src/ir/ExpressionManipulator.cpp
+++ b/src/ir/ExpressionManipulator.cpp
@@ -257,9 +257,6 @@ flexibleCopy(Expression* original, Module& wasm, CustomCopier custom) {
     Expression* visitUnreachable(Unreachable* curr) {
       return builder.makeUnreachable();
     }
-    Expression* visitPush(Push* curr) {
-      return builder.makePush(copy(curr->value));
-    }
     Expression* visitPop(Pop* curr) { return builder.makePop(curr->type); }
     Expression* visitTupleMake(TupleMake* curr) {
       std::vector<Expression*> operands;