1 files changed, 2 insertions, 18 deletions

diff --git a/src/passes/LegalizeJSInterface.cpp b/src/passes/LegalizeJSInterface.cpp
index 6002c7ad7..cde4373f8 100644
--- a/src/passes/LegalizeJSInterface.cpp
+++ b/src/passes/LegalizeJSInterface.cpp
@@ -29,9 +29,6 @@
 // across modules, we still want to legalize dynCalls so JS can call into the
 // table even to a signature that is not legal.
 //
-// This pass also legalizes according to asm.js FFI rules, which
-// disallow f32s. TODO: an option to not do that, if it matters?
-//
 
 #include <utility>
 #include "wasm.h"
@@ -124,9 +121,9 @@ private:
   template<typename T>
   bool isIllegal(T* t) {
     for (auto param : t->params) {
-      if (param == i64 || param == f32) return true;
+      if (param == i64) return true;
     }
-    return t->result == i64 || t->result == f32;
+    return t->result == i64;
   }
 
   // Check if an export should be legalized.
@@ -158,9 +155,6 @@ private:
         call->operands.push_back(I64Utilities::recreateI64(builder, legal->params.size(), legal->params.size() + 1));
         legal->params.push_back(i32);
         legal->params.push_back(i32);
-      } else if (param == f32) {
-        call->operands.push_back(builder.makeUnary(DemoteFloat64, builder.makeGetLocal(legal->params.size(), f64)));
-        legal->params.push_back(f64);
       } else {
         call->operands.push_back(builder.makeGetLocal(legal->params.size(), param));
         legal->params.push_back(param);
@@ -177,9 +171,6 @@ private:
       block->list.push_back(I64Utilities::getI64Low(builder, index));
       block->finalize();
       legal->body = block;
-    } else if (func->result == f32) {
-      legal->result = f64;
-      legal->body = builder.makeUnary(PromoteFloat32, call);
     } else {
       legal->result = func->result;
       legal->body = call;
@@ -216,9 +207,6 @@ private:
         call->operands.push_back(I64Utilities::getI64High(builder, func->params.size()));
         type->params.push_back(i32);
         type->params.push_back(i32);
-      } else if (param == f32) {
-        call->operands.push_back(builder.makeUnary(PromoteFloat32, builder.makeGetLocal(func->params.size(), f32)));
-        type->params.push_back(f64);
       } else {
         call->operands.push_back(builder.makeGetLocal(func->params.size(), param));
         type->params.push_back(param);
@@ -232,10 +220,6 @@ private:
       Expression* get = builder.makeCall(f->name, {}, call->type);
       func->body = I64Utilities::recreateI64(builder, call, get);
       type->result = i32;
-    } else if (imFunctionType->result == f32) {
-      call->type = f64;
-      func->body = builder.makeUnary(DemoteFloat64, call);
-      type->result = f64;
     } else {
       call->type = imFunctionType->result;
       func->body = call;