[wasm] Detect unrepresentability in the float32-to-int32 conversion correctly on arm.

test/cctest/compiler/test-run-machops.cc

 // Copyright 2014 the V8 project authors. All rights reserved. Use of this
 // source code is governed by a BSD-style license that can be found in the
 // LICENSE file.
 
 #include <cmath>
 #include <functional>
 #include <limits>
 
 #include "src/base/bits.h"
 #include "src/base/ieee754.h"
@@ skipping 4012 matching lines @@
         *i >= static_cast<float>(std::numeric_limits<int32_t>::min())) {
       CHECK_FLOAT_EQ(static_cast<int32_t>(*i), m.Call(*i));
     }
   }
 }
 
 
 TEST(RunTruncateFloat32ToUint32) {
   BufferedRawMachineAssemblerTester<uint32_t> m(MachineType::Float32());
   m.Return(m.TruncateFloat32ToUint32(m.Parameter(0)));
-  {
     FOR_UINT32_INPUTS(i) {
       volatile float input = static_cast<float>(*i);
       // This condition on 'input' is required because
-      // static_cast<float>(std::numeric_limits<uint32_t>::max()) results in a
-      // value outside uint32 range.
-      if (input < static_cast<float>(std::numeric_limits<uint32_t>::max())) {
+      // static_cast<float>(UINT32_MAX) results in a value outside uint32 range.
+      if (input < (static_cast<float>(static_cast<uint64_t>(UINT32_MAX) + 1))) {
         CHECK_EQ(static_cast<uint32_t>(input), m.Call(input));
       }
     }
-  }
-  {
-    FOR_FLOAT32_INPUTS(i) {
-      if (*i <= static_cast<float>(std::numeric_limits<uint32_t>::max()) &&
-          *i >= static_cast<float>(std::numeric_limits<uint32_t>::min())) {
-        CHECK_FLOAT_EQ(static_cast<uint32_t>(*i), m.Call(*i));
+    FOR_FLOAT32_INPUTS(j) {
+      if (*j < (static_cast<float>(static_cast<uint64_t>(UINT32_MAX) + 1)) &&
+          *j > -1) {
+        CHECK_FLOAT_EQ(static_cast<uint32_t>(*j), m.Call(*j));
       }
     }
-  }
 }
 
 
 TEST(RunChangeFloat64ToInt32_A) {
   BufferedRawMachineAssemblerTester<int32_t> m;
   double magic = 11.1;
   m.Return(m.ChangeFloat64ToInt32(m.Float64Constant(magic)));
   CHECK_EQ(static_cast<int32_t>(magic), m.Call());
 }
 
@@ skipping 2347 matching lines @@
   r.Goto(&merge);
   r.Bind(&merge);
   Node* phi = r.Phi(MachineRepresentation::kWord32, fa, fb);
   r.Return(phi);
   CHECK_EQ(1, r.Call(1));
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8