Implement v128.{load,store}{8,16,32,64}_lane instructions (#3278)

These instructions are proposed in https://github.com/WebAssembly/simd/pull/350.
This PR implements them throughout Binaryen except in the C/JS APIs and in the
fuzzer, where it leaves TODOs instead. Right now these instructions are just
being implemented for prototyping so adding them to the APIs isn't critical and
they aren't generally available to be fuzzed in Wasm engines.

1 files changed, 10 insertions, 0 deletions

diff --git a/src/ir/effects.h b/src/ir/effects.h
index dc6c10645..1a713f944 100644
--- a/src/ir/effects.h
+++ b/src/ir/effects.h
@@ -385,6 +385,16 @@ struct EffectAnalyzer
       implicitTrap = true;
     }
   }
+  void visitSIMDLoadStoreLane(SIMDLoadStoreLane* curr) {
+    if (curr->isLoad()) {
+      readsMemory = true;
+    } else {
+      writesMemory = true;
+    }
+    if (!ignoreImplicitTraps) {
+      implicitTrap = true;
+    }
+  }
   void visitMemoryInit(MemoryInit* curr) {
     writesMemory = true;
     if (!ignoreImplicitTraps) {