PPC: Fix simulator and re-enable wasm tests.

test/cctest/wasm/test-run-wasm-module.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 <stdlib.h>
 #include <string.h>
 
 #include "src/wasm/encoder.h"
 #include "src/wasm/wasm-macro-gen.h"
 #include "src/wasm/wasm-module.h"
@@ skipping 10 matching lines @@
 namespace {
 void TestModule(WasmModuleIndex* module, int32_t expected_result) {
   Isolate* isolate = CcTest::InitIsolateOnce();
   int32_t result =
       CompileAndRunWasmModule(isolate, module->Begin(), module->End());
   CHECK_EQ(expected_result, result);
 }
 }  // namespace
 
 
-// TODO(tizer): Figure out why this crashes with PPC.
-#if !defined(V8_TARGET_ARCH_PPC) && !defined(V8_TARGET_ARCH_PPC64)
-
 // A raw test that skips the WasmModuleBuilder.
 TEST(Run_WasmModule_CallAdd_rev) {
   static const byte data[] = {
       // sig#0 ------------------------------------------
       kDeclSignatures, 2, 0, kLocalI32,    // void -> int
       2, kLocalI32, kLocalI32, kLocalI32,  // int,int -> int
       // func#0 (main) ----------------------------------
       kDeclFunctions, 2, kDeclFunctionExport, 0, 0,  // sig index
       6, 0,                                          // body size
       kExprCallFunction, 1,                          // --
       kExprI8Const, 77,                              // --
       kExprI8Const, 22,                              // --
       // func#1 -----------------------------------------
       0,                 // no name, not exported
       1, 0,              // sig index
       5, 0,              // body size
       kExprI32Add,       // --
       kExprGetLocal, 0,  // --
       kExprGetLocal, 1,  // --
   };
 
   Isolate* isolate = CcTest::InitIsolateOnce();
   int32_t result =
       CompileAndRunWasmModule(isolate, data, data + arraysize(data));
   CHECK_EQ(99, result);
 }
 
-#endif
-
 
 TEST(Run_WasmModule_Return114) {
   static const int32_t kReturnValue = 114;
   Zone zone;
   WasmModuleBuilder* builder = new (&zone) WasmModuleBuilder(&zone);
   uint16_t f_index = builder->AddFunction();
   WasmFunctionBuilder* f = builder->FunctionAt(f_index);
   f->ReturnType(kAstI32);
   f->Exported(1);
   byte code[] = {WASM_I8(kReturnValue)};
   f->EmitCode(code, sizeof(code));
   WasmModuleWriter* writer = builder->Build(&zone);
   TestModule(writer->WriteTo(&zone), kReturnValue);
 }
 
 
-// TODO(tizer): Figure out why this crashes with PPC.
-#if !defined(V8_TARGET_ARCH_PPC) && !defined(V8_TARGET_ARCH_PPC64)
-
 TEST(Run_WasmModule_CallAdd) {
   Zone zone;
   WasmModuleBuilder* builder = new (&zone) WasmModuleBuilder(&zone);
   uint16_t f1_index = builder->AddFunction();
   WasmFunctionBuilder* f = builder->FunctionAt(f1_index);
   f->ReturnType(kAstI32);
   uint16_t param1 = f->AddParam(kAstI32);
   uint16_t param2 = f->AddParam(kAstI32);
   byte code1[] = {WASM_I32_ADD(WASM_GET_LOCAL(param1), WASM_GET_LOCAL(param2))};
   uint32_t local_indices1[] = {2, 4};
   f->EmitCode(code1, sizeof(code1), local_indices1, sizeof(local_indices1) / 4);
   uint16_t f2_index = builder->AddFunction();
   f = builder->FunctionAt(f2_index);
   f->ReturnType(kAstI32);
   f->Exported(1);
   byte code2[] = {WASM_CALL_FUNCTION(f1_index, WASM_I8(77), WASM_I8(22))};
   f->EmitCode(code2, sizeof(code2));
   WasmModuleWriter* writer = builder->Build(&zone);
   TestModule(writer->WriteTo(&zone), 99);
 }
 
-#endif
-
 
 TEST(Run_WasmModule_ReadLoadedDataSegment) {
   static const byte kDataSegmentDest0 = 12;
   Zone zone;
   WasmModuleBuilder* builder = new (&zone) WasmModuleBuilder(&zone);
   uint16_t f_index = builder->AddFunction();
   WasmFunctionBuilder* f = builder->FunctionAt(f_index);
   f->ReturnType(kAstI32);
   f->Exported(1);
   byte code[] = {
@@ skipping 34 matching lines @@
               WASM_BRV(2, WASM_I8(-1)), WASM_INC_LOCAL_BY(localIndex, 4))),
       WASM_I8(11))};
   uint32_t local_indices[] = {7, 19, 25, 28};
   f->EmitCode(code, sizeof(code), local_indices, sizeof(local_indices) / 4);
   WasmModuleWriter* writer = builder->Build(&zone);
   TestModule(writer->WriteTo(&zone), 11);
 }
 #endif
 
 
-#if !defined(V8_WITH_ASAN) && !defined(V8_TARGET_ARCH_PPC) && \
-    !defined(V8_TARGET_ARCH_PPC64)
-// TODO(tizer): Figure out why this crashes with PPC.
+#if !defined(V8_WITH_ASAN)
 // TODO(bradnelson): Figure out why this crashes under asan.
 TEST(Run_WasmModule_CallMain_recursive) {
   Zone zone;
   WasmModuleBuilder* builder = new (&zone) WasmModuleBuilder(&zone);
   uint16_t f_index = builder->AddFunction();
   WasmFunctionBuilder* f = builder->FunctionAt(f_index);
   f->ReturnType(kAstI32);
   uint16_t localIndex = f->AddLocal(kAstI32);
   f->Exported(1);
   byte code[] = {WASM_BLOCK(
       2, WASM_SET_LOCAL(localIndex,
                         WASM_LOAD_MEM(MachineType::Int32(), WASM_ZERO)),
       WASM_IF_ELSE(WASM_I32_LTS(WASM_GET_LOCAL(localIndex), WASM_I8(5)),
                    WASM_BLOCK(2, WASM_STORE_MEM(MachineType::Int32(), WASM_ZERO,
                                                 WASM_INC_LOCAL(localIndex)),
                               WASM_BRV(1, WASM_CALL_FUNCTION0(0))),
                    WASM_BRV(0, WASM_I8(55))))};
   uint32_t local_indices[] = {3, 11, 21, 24};
   f->EmitCode(code, sizeof(code), local_indices, sizeof(local_indices) / 4);
   WasmModuleWriter* writer = builder->Build(&zone);
   TestModule(writer->WriteTo(&zone), 55);
 }
 #endif
 
 
-#if !defined(V8_WITH_ASAN) && !defined(V8_TARGET_ARCH_PPC) && \
-    !defined(V8_TARGET_ARCH_PPC64)
-// TODO(tizer): Figure out why this fails with PPC.
+#if !defined(V8_WITH_ASAN)
 // TODO(bradnelson): Figure out why this crashes under asan.
 TEST(Run_WasmModule_Global) {
   Zone zone;
   WasmModuleBuilder* builder = new (&zone) WasmModuleBuilder(&zone);
   uint32_t global1 = builder->AddGlobal(MachineType::Int32(), 0);
   uint32_t global2 = builder->AddGlobal(MachineType::Int32(), 0);
   uint16_t f1_index = builder->AddFunction();
   WasmFunctionBuilder* f = builder->FunctionAt(f1_index);
   f->ReturnType(kAstI32);
   byte code1[] = {
       WASM_I32_ADD(WASM_LOAD_GLOBAL(global1), WASM_LOAD_GLOBAL(global2))};
   f->EmitCode(code1, sizeof(code1));
   uint16_t f2_index = builder->AddFunction();
   f = builder->FunctionAt(f2_index);
   f->ReturnType(kAstI32);
   f->Exported(1);
   byte code2[] = {WASM_STORE_GLOBAL(global1, WASM_I32(56)),
                   WASM_STORE_GLOBAL(global2, WASM_I32(41)),
                   WASM_RETURN(WASM_CALL_FUNCTION0(f1_index))};
   f->EmitCode(code2, sizeof(code2));
   WasmModuleWriter* writer = builder->Build(&zone);
   TestModule(writer->WriteTo(&zone), 97);
 }
 #endif