[turbofan] Add Float32(Max|Min) machine operators.

src/compiler/mips64/code-generator-mips64.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 "src/ast/scopes.h"
 #include "src/compiler/code-generator.h"
 #include "src/compiler/code-generator-impl.h"
 #include "src/compiler/gap-resolver.h"
 #include "src/compiler/node-matchers.h"
 #include "src/compiler/osr.h"
@@ skipping 1371 matching lines @@
       break;
     }
     case kMips64Float64RoundTiesEven: {
       ASSEMBLE_ROUND_DOUBLE_TO_DOUBLE(round);
       break;
     }
     case kMips64Float32RoundTiesEven: {
       ASSEMBLE_ROUND_FLOAT_TO_FLOAT(round);
       break;
     }
+    case kMips64Float32Max: {
+      Label compare_nan, done_compare;
+      __ MaxNaNCheck_s(i.OutputSingleRegister(), i.InputSingleRegister(0),
+                       i.InputSingleRegister(1), &compare_nan);
+      __ Branch(&done_compare);
+      __ bind(&compare_nan);
+      __ Move(i.OutputSingleRegister(),
+              std::numeric_limits<float>::quiet_NaN());
+      __ bind(&done_compare);
+      break;
+    }
     case kMips64Float64Max: {
       Label compare_nan, done_compare;
       __ MaxNaNCheck_d(i.OutputDoubleRegister(), i.InputDoubleRegister(0),
                        i.InputDoubleRegister(1), &compare_nan);
       __ Branch(&done_compare);
       __ bind(&compare_nan);
       __ Move(i.OutputDoubleRegister(),
               std::numeric_limits<double>::quiet_NaN());
       __ bind(&done_compare);
       break;
     }
+    case kMips64Float32Min: {
+      Label compare_nan, done_compare;
+      __ MinNaNCheck_s(i.OutputSingleRegister(), i.InputSingleRegister(0),
+                       i.InputSingleRegister(1), &compare_nan);
+      __ Branch(&done_compare);
+      __ bind(&compare_nan);
+      __ Move(i.OutputSingleRegister(),
+              std::numeric_limits<float>::quiet_NaN());
+      __ bind(&done_compare);
+      break;
+    }
     case kMips64Float64Min: {
       Label compare_nan, done_compare;
       __ MinNaNCheck_d(i.OutputDoubleRegister(), i.InputDoubleRegister(0),
                        i.InputDoubleRegister(1), &compare_nan);
       __ Branch(&done_compare);
       __ bind(&compare_nan);
       __ Move(i.OutputDoubleRegister(),
               std::numeric_limits<double>::quiet_NaN());
       __ bind(&done_compare);
       break;
@@ skipping 1052 matching lines @@
       padding_size -= v8::internal::Assembler::kInstrSize;
     }
   }
 }
 
 #undef __
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8