From 4d0fea95aec72f932efa83a0601b98c177e59a85 Mon Sep 17 00:00:00 2001
From: Alon Zakai <alonzakai@gmail.com>
Date: Sun, 11 Sep 2016 11:39:31 -0700
Subject: thread relooper jumps

---
 src/asm2wasm.h | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'src/asm2wasm.h')

diff --git a/src/asm2wasm.h b/src/asm2wasm.h
index 84db006c4..478a0dd7c 100644
--- a/src/asm2wasm.h
+++ b/src/asm2wasm.h
@@ -522,6 +522,8 @@ void Asm2WasmBuilder::processAsm(Ref ast) {
     optimizingBuilder = make_unique<OptimizingIncrementalModuleBuilder>(&wasm, numFunctions, [&](PassRunner& passRunner) {
       // run autodrop first, before optimizations
       passRunner.add<AutoDrop>();
+      // optimize relooper label variable usage at the wasm level, where it is easy
+      passRunner.add("relooper-jump-threading");
     });
   }
 
@@ -802,6 +804,7 @@ void Asm2WasmBuilder::processAsm(Ref ast) {
       add->right = parent->builder.makeConst(Literal((int32_t)parent->functionTableStarts[tableName]));
     }
   };
+
   PassRunner passRunner(&wasm);
   passRunner.add<FinalizeCalls>(this);
   passRunner.add<ReFinalize>(); // FinalizeCalls changes call types, need to percolate
-- 
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