From d0ed3b81922fe1a6650853931b2a2b26b8d526c6 Mon Sep 17 00:00:00 2001
From: magumagu <magumagu9@gmail.com>
Date: Thu, 22 May 2014 19:20:43 -0700
Subject: [PATCH] Jit: Use infinity and NaN from numeric_limits.

MSVC's implementation of INFINITY is unusable.
---
 .../PowerPC/Interpreter/Interpreter_FPUtils.h    | 16 ++++++++++++----
 1 file changed, 12 insertions(+), 4 deletions(-)

diff --git a/Source/Core/Core/PowerPC/Interpreter/Interpreter_FPUtils.h b/Source/Core/Core/PowerPC/Interpreter/Interpreter_FPUtils.h
index c5d24f7a03..906913c423 100644
--- a/Source/Core/Core/PowerPC/Interpreter/Interpreter_FPUtils.h
+++ b/Source/Core/Core/PowerPC/Interpreter/Interpreter_FPUtils.h
@@ -4,6 +4,8 @@
 
 #pragma once
 
+#include <limits>
+
 #include "Common/CPUDetect.h"
 #include "Common/MathUtil.h"
 #include "Core/PowerPC/Interpreter/Interpreter.h"
@@ -307,7 +309,8 @@ inline double ApproximateReciprocal(double val)
 
 	// Special case 0
 	if (mantissa == 0 && exponent == 0)
-		return sign ? -INFINITY : INFINITY;
+		return sign ? -std::numeric_limits<double>::infinity() :
+		               std::numeric_limits<double>::infinity();
 	// Special case NaN-ish numbers
 	if (exponent == (0x7FFLL << 52))
 	{
@@ -364,17 +367,22 @@ inline double ApproximateReciprocalSquareRoot(double val)
 
 	// Special case 0
 	if (mantissa == 0 && exponent == 0)
-		return sign ? -INFINITY : INFINITY;
+		return sign ? -std::numeric_limits<double>::infinity() :
+		               std::numeric_limits<double>::infinity();
 	// Special case NaN-ish numbers
 	if (exponent == (0x7FFLL << 52))
 	{
 		if (mantissa == 0)
-			return sign ? NAN : 0.0;
+		{
+			if (sign)
+				return std::numeric_limits<double>::quiet_NaN();
+			return 0.0;
+		}
 		return 0.0 + valf;
 	}
 	// Negative numbers return NaN
 	if (sign)
-		return NAN;
+		return std::numeric_limits<double>::quiet_NaN();
 
 	if (!exponent)
 	{