[wasm] Do not use setjmp/longjmp in cctests.

test/cctest/wasm/test-run-wasm-64.cc

 // Copyright 2015 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 <stdint.h>
 #include <stdlib.h>
 #include <string.h>
 
 #include "src/base/bits.h"
 #include "src/wasm/wasm-macro-gen.h"
@@ skipping 1301 matching lines @@
   BUILD(r, WASM_I64_REINTERPRET_F64(
                WASM_LOAD_MEM(MachineType::Float64(), WASM_ZERO)));
 
   FOR_INT32_INPUTS(i) {
     int64_t expected = static_cast<int64_t>(*i) * 0x300010001;
     r.module().WriteMemory(&memory[0], expected);
     CHECK_EQ(expected, r.Call());
   }
 }
 
+// Do not run this test in a simulator because of signalling NaN issues on ia32.
+#if (V8_HOST_ARCH_IA32 || V8_HOST_ARCH_X64) && \

[Rodolph Perfetta (ARM), 2017/02/08 01:40:55]

This test will only run on ia32 or x64 now, if you want to avoid simulators
only: #ifndef USE_SIMULATOR

[ahaas, 2017/02/08 09:11:46]

Thanks, I was not aware of this flag.

+    (V8_TARGET_ARCH_IA32 || V8_TARGET_ARCH_X64)
+
 WASM_EXEC_TEST(SignallingNanSurvivesI64ReinterpretF64) {
   REQUIRE(I64ReinterpretF64);
   WasmRunner<int64_t> r(execution_mode);
   BUILD(r, WASM_I64_REINTERPRET_F64(WASM_SEQ(kExprF64Const, 0x00, 0x00, 0x00,
                                              0x00, 0x00, 0x00, 0xf4, 0x7f)));
 
   // This is a signalling nan.
   CHECK_EQ(0x7ff4000000000000, r.Call());
 }
+#endif
 
 WASM_EXEC_TEST(F64ReinterpretI64) {
   REQUIRE(F64ReinterpretI64);
   WasmRunner<int64_t, int64_t> r(execution_mode);
   int64_t* memory = r.module().AddMemoryElems<int64_t>(8);
 
   BUILD(r, WASM_STORE_MEM(MachineType::Float64(), WASM_ZERO,
                           WASM_F64_REINTERPRET_I64(WASM_GET_LOCAL(0))),
         WASM_GET_LOCAL(0));
 
@@ skipping 300 matching lines @@
   r.module().AddMemoryElems<int64_t>(8);
 
   BUILD(r, kExprI64Const, 0x00,        // --
         kExprI32ConvertI64,            // --
         kExprI64Const, 0x00,           // --
         kExprI64StoreMem, 0x03, 0x00,  // --
         kExprI32Const, 0x00);          // --
 
   r.Call();
 }