MIPS64: Add big-endian support for mips64.

test/cctest/test-assembler-mips64.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 572 matching lines @@
   assm.GetCode(&desc);
   Handle<Code> code = isolate->factory()->NewCode(
       desc, Code::ComputeFlags(Code::STUB), Handle<Code>());
   F3 f = FUNCTION_CAST<F3>(code->entry());
   t.ui = 0x11223344;
   t.si = 0x99aabbcc;
   Object* dummy = CALL_GENERATED_CODE(f, &t, 0, 0, 0, 0);
   USE(dummy);
 
   CHECK_EQ(static_cast<int32_t>(0x11223344), t.r1);
-  CHECK_EQ(static_cast<int32_t>(0x3344), t.r2);
-  CHECK_EQ(static_cast<int32_t>(0xffffbbcc), t.r3);
-  CHECK_EQ(static_cast<int32_t>(0x0000bbcc), t.r4);
-  CHECK_EQ(static_cast<int32_t>(0xffffffcc), t.r5);
-  CHECK_EQ(static_cast<int32_t>(0x3333bbcc), t.r6);
+  if (kArchEndian == kLittle)  {
+    CHECK_EQ(static_cast<int32_t>(0x3344), t.r2);
+    CHECK_EQ(static_cast<int32_t>(0xffffbbcc), t.r3);
+    CHECK_EQ(static_cast<int32_t>(0x0000bbcc), t.r4);
+    CHECK_EQ(static_cast<int32_t>(0xffffffcc), t.r5);
+    CHECK_EQ(static_cast<int32_t>(0x3333bbcc), t.r6);
+  } else {
+    CHECK_EQ(static_cast<int32_t>(0x1122), t.r2);
+    CHECK_EQ(static_cast<int32_t>(0xffff99aa), t.r3);
+    CHECK_EQ(static_cast<int32_t>(0x000099aa), t.r4);
+    CHECK_EQ(static_cast<int32_t>(0xffffff99), t.r5);
+    CHECK_EQ(static_cast<int32_t>(0x99aa3333), t.r6);
+  }
 }
 
 
 TEST(MIPS7) {
   // Test floating point compare and branch instructions.
   CcTest::InitializeVM();
   Isolate* isolate = CcTest::i_isolate();
   HandleScope scope(isolate);
 
   typedef struct {
@@ skipping 411 matching lines @@
     assm.GetCode(&desc);
     Handle<Code> code = isolate->factory()->NewCode(
         desc, Code::ComputeFlags(Code::STUB), Handle<Code>());
     F3 f = FUNCTION_CAST<F3>(code->entry());
     t.reg_init = 0xaabbccdd;
     t.mem_init = 0x11223344;
 
     Object* dummy = CALL_GENERATED_CODE(f, &t, 0, 0, 0, 0);
     USE(dummy);
 
-    CHECK_EQ(static_cast<int32_t>(0x44bbccdd), t.lwl_0);
-    CHECK_EQ(static_cast<int32_t>(0x3344ccdd), t.lwl_1);
-    CHECK_EQ(static_cast<int32_t>(0x223344dd), t.lwl_2);
-    CHECK_EQ(static_cast<int32_t>(0x11223344), t.lwl_3);
+    if (kArchEndian == kLittle) {
+      CHECK_EQ(static_cast<int32_t>(0x44bbccdd), t.lwl_0);
+      CHECK_EQ(static_cast<int32_t>(0x3344ccdd), t.lwl_1);
+      CHECK_EQ(static_cast<int32_t>(0x223344dd), t.lwl_2);
+      CHECK_EQ(static_cast<int32_t>(0x11223344), t.lwl_3);
 
-    CHECK_EQ(static_cast<int32_t>(0x11223344), t.lwr_0);
-    CHECK_EQ(static_cast<int32_t>(0xaa112233), t.lwr_1);
-    CHECK_EQ(static_cast<int32_t>(0xaabb1122), t.lwr_2);
-    CHECK_EQ(static_cast<int32_t>(0xaabbcc11), t.lwr_3);
+      CHECK_EQ(static_cast<int32_t>(0x11223344), t.lwr_0);
+      CHECK_EQ(static_cast<int32_t>(0xaa112233), t.lwr_1);
+      CHECK_EQ(static_cast<int32_t>(0xaabb1122), t.lwr_2);
+      CHECK_EQ(static_cast<int32_t>(0xaabbcc11), t.lwr_3);
 
-    CHECK_EQ(static_cast<int32_t>(0x112233aa), t.swl_0);
-    CHECK_EQ(static_cast<int32_t>(0x1122aabb), t.swl_1);
-    CHECK_EQ(static_cast<int32_t>(0x11aabbcc), t.swl_2);
-    CHECK_EQ(static_cast<int32_t>(0xaabbccdd), t.swl_3);
+      CHECK_EQ(static_cast<int32_t>(0x112233aa), t.swl_0);
+      CHECK_EQ(static_cast<int32_t>(0x1122aabb), t.swl_1);
+      CHECK_EQ(static_cast<int32_t>(0x11aabbcc), t.swl_2);
+      CHECK_EQ(static_cast<int32_t>(0xaabbccdd), t.swl_3);
 
-    CHECK_EQ(static_cast<int32_t>(0xaabbccdd), t.swr_0);
-    CHECK_EQ(static_cast<int32_t>(0xbbccdd44), t.swr_1);
-    CHECK_EQ(static_cast<int32_t>(0xccdd3344), t.swr_2);
-    CHECK_EQ(static_cast<int32_t>(0xdd223344), t.swr_3);
+      CHECK_EQ(static_cast<int32_t>(0xaabbccdd), t.swr_0);
+      CHECK_EQ(static_cast<int32_t>(0xbbccdd44), t.swr_1);
+      CHECK_EQ(static_cast<int32_t>(0xccdd3344), t.swr_2);
+      CHECK_EQ(static_cast<int32_t>(0xdd223344), t.swr_3);
+    } else {
+      CHECK_EQ(static_cast<int32_t>(0x11223344), t.lwl_0);
+      CHECK_EQ(static_cast<int32_t>(0x223344dd), t.lwl_1);
+      CHECK_EQ(static_cast<int32_t>(0x3344ccdd), t.lwl_2);
+      CHECK_EQ(static_cast<int32_t>(0x44bbccdd), t.lwl_3);
+
+      CHECK_EQ(static_cast<int32_t>(0xaabbcc11), t.lwr_0);
+      CHECK_EQ(static_cast<int32_t>(0xaabb1122), t.lwr_1);
+      CHECK_EQ(static_cast<int32_t>(0xaa112233), t.lwr_2);
+      CHECK_EQ(static_cast<int32_t>(0x11223344), t.lwr_3);
+
+      CHECK_EQ(static_cast<int32_t>(0xaabbccdd), t.swl_0);
+      CHECK_EQ(static_cast<int32_t>(0x11aabbcc), t.swl_1);
+      CHECK_EQ(static_cast<int32_t>(0x1122aabb), t.swl_2);
+      CHECK_EQ(static_cast<int32_t>(0x112233aa), t.swl_3);
+
+      CHECK_EQ(static_cast<int32_t>(0xdd223344), t.swr_0);
+      CHECK_EQ(static_cast<int32_t>(0xccdd3344), t.swr_1);
+      CHECK_EQ(static_cast<int32_t>(0xbbccdd44), t.swr_2);
+      CHECK_EQ(static_cast<int32_t>(0xaabbccdd), t.swr_3);
+    }
   }
 }
 
 
 TEST(MIPS12) {
   CcTest::InitializeVM();
   Isolate* isolate = CcTest::i_isolate();
   HandleScope scope(isolate);
 
   typedef struct {
@@ skipping 4399 matching lines @@
   };
 
   size_t nr_test_cases = sizeof(tc) / sizeof(TestCaseBal);
   for (size_t i = 0; i < nr_test_cases; ++i) {
     CHECK_EQ(tc[i].expected_res, run_bal(tc[i].offset));
   }
 }
 
 
 #undef __