Revert of Remove obsolete V8_INFINITY macro.

src/ppc/code-stubs-ppc.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 <limits>
-
 #include "src/v8.h"
 
 #if V8_TARGET_ARCH_PPC
 
 #include "src/base/bits.h"
 #include "src/bootstrapper.h"
 #include "src/code-stubs.h"
 #include "src/codegen.h"
 #include "src/ic/handler-compiler.h"
 #include "src/ic/ic.h"
@@ skipping 776 matching lines @@
       // for non-constant cases of +/-0.5 as these hardly occur.
       Label not_plus_half, not_minus_inf1, not_minus_inf2;
 
       // Test for 0.5.
       __ LoadDoubleLiteral(double_scratch, 0.5, scratch);
       __ fcmpu(double_exponent, double_scratch);
       __ bne(&not_plus_half);
 
       // Calculates square root of base.  Check for the special case of
       // Math.pow(-Infinity, 0.5) == Infinity (ECMA spec, 15.8.2.13).
-      __ LoadDoubleLiteral(double_scratch,
-                           -std::numeric_limits<double>::infinity(), scratch);
+      __ LoadDoubleLiteral(double_scratch, -V8_INFINITY, scratch);
       __ fcmpu(double_base, double_scratch);
       __ bne(&not_minus_inf1);
       __ fneg(double_result, double_scratch);
       __ b(&done);
       __ bind(&not_minus_inf1);
 
       // Add +0 to convert -0 to +0.
       __ fadd(double_scratch, double_base, kDoubleRegZero);
       __ fsqrt(double_result, double_scratch);
       __ b(&done);
 
       __ bind(&not_plus_half);
       __ LoadDoubleLiteral(double_scratch, -0.5, scratch);
       __ fcmpu(double_exponent, double_scratch);
       __ bne(&call_runtime);
 
       // Calculates square root of base.  Check for the special case of
       // Math.pow(-Infinity, -0.5) == 0 (ECMA spec, 15.8.2.13).
-      __ LoadDoubleLiteral(double_scratch,
-                           -std::numeric_limits<double>::infinity(), scratch);
+      __ LoadDoubleLiteral(double_scratch, -V8_INFINITY, scratch);
       __ fcmpu(double_base, double_scratch);
       __ bne(&not_minus_inf2);
       __ fmr(double_result, kDoubleRegZero);
       __ b(&done);
       __ bind(&not_minus_inf2);
 
       // Add +0 to convert -0 to +0.
       __ fadd(double_scratch, double_base, kDoubleRegZero);
       __ LoadDoubleLiteral(double_result, 1.0, scratch);
       __ fsqrt(double_scratch, double_scratch);
@@ skipping 4053 matching lines @@
                               kStackUnwindSpace,
                               MemOperand(fp, 6 * kPointerSize), NULL);
 }
 
 
 #undef __
 }
 }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_PPC