MIPS: Support r6 max, min floating point instructions.

test/cctest/test-assembler-mips.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 1472 matching lines @@
     double inputsb[kTableLength] = {3.0,  2.0,  3.0,  dnan, 0.0,   -0.0, dnan,
                                     dinf, dinf, 42.0, dinf, dminf, dnan};
     double outputsdmin[kTableLength] = {2.0,   2.0,   3.0,  3.0,  -0.0,
                                         -0.0,  dinf,  dinf, 42.0, 42.0,
                                         dminf, dminf, dnan};
     double outputsdmax[kTableLength] = {3.0,  3.0,  3.0,  3.0,  0.0,  0.0, dinf,
                                         dinf, dinf, dinf, dinf, dinf, dnan};
 
     float inputse[kTableLength] = {2.0,  3.0,  fnan, 3.0,   -0.0, 0.0, finf,
                                    fnan, 42.0, finf, fminf, finf, fnan};
-    float inputsf[kTableLength] = {3.0,  2.0,  3.0,  fnan, -0.0,  0.0, fnan,
+    float inputsf[kTableLength] = {3.0,  2.0,  3.0,  fnan, 0.0,   -0.0, fnan,
                                    finf, finf, 42.0, finf, fminf, fnan};
     float outputsfmin[kTableLength] = {2.0,   2.0,   3.0,  3.0,  -0.0,
                                        -0.0,  finf,  finf, 42.0, 42.0,
                                        fminf, fminf, fnan};
     float outputsfmax[kTableLength] = {3.0,  3.0,  3.0,  3.0,  0.0,  0.0, finf,
                                        finf, finf, finf, finf, finf, fnan};
 
     __ ldc1(f4, MemOperand(a0, offsetof(TestFloat, a)));
     __ ldc1(f8, MemOperand(a0, offsetof(TestFloat, b)));
     __ lwc1(f2, MemOperand(a0, offsetof(TestFloat, e)));
@@ skipping 13 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());
     for (int i = 0; i < kTableLength; i++) {
       test.a = inputsa[i];
       test.b = inputsb[i];
       test.e = inputse[i];
       test.f = inputsf[i];
 
-      (CALL_GENERATED_CODE(isolate, f, &test, 0, 0, 0, 0));
+      CALL_GENERATED_CODE(isolate, f, &test, 0, 0, 0, 0);
 
-      if (i < kTableLength - 1) {
-        CHECK_EQ(test.c, outputsdmin[i]);
-        CHECK_EQ(test.d, outputsdmax[i]);
-        CHECK_EQ(test.g, outputsfmin[i]);
-        CHECK_EQ(test.h, outputsfmax[i]);
-      } else {
-        CHECK(std::isnan(test.c));
-        CHECK(std::isnan(test.d));
-        CHECK(std::isnan(test.g));
-        CHECK(std::isnan(test.h));
-      }
+      CHECK_EQ(0, memcmp(&test.c, &outputsdmin[i], sizeof(test.c)));
+      CHECK_EQ(0, memcmp(&test.d, &outputsdmax[i], sizeof(test.d)));
+      CHECK_EQ(0, memcmp(&test.g, &outputsfmin[i], sizeof(test.g)));
+      CHECK_EQ(0, memcmp(&test.h, &outputsfmax[i], sizeof(test.h)));
     }
   }
 }
 
 
 TEST(rint_d)  {
   if (IsMipsArchVariant(kMips32r6)) {
     const int kTableLength = 30;
     CcTest::InitializeVM();
     Isolate* isolate = CcTest::i_isolate();
@@ skipping 3835 matching lines @@
   Handle<Code> code = isolate->factory()->NewCode(
       desc, Code::ComputeFlags(Code::STUB), Handle<Code>());
   F2 f = FUNCTION_CAST<F2>(code->entry());
 
   int32_t res = reinterpret_cast<int32_t>(
       CALL_GENERATED_CODE(isolate, f, 42, 42, 0, 0, 0));
   CHECK_EQ(res, 0);
 }
 
 #undef __