ARM: Always use the overflow flag to check for NaNs participating in a floati...

src/arm/assembler-arm.h

Index: src/arm/assembler-arm.h
===================================================================
--- src/arm/assembler-arm.h	(revision 6268)
+++ src/arm/assembler-arm.h	(working copy)
@@ -298,13 +298,18 @@
 const DwVfpRegister d15 = { 15 };
 
 // VFP FPSCR constants.
-static const uint32_t kVFPExceptionMask = 0xf;
+static const uint32_t kVFPNConditionFlagBit = 1 << 31;
+static const uint32_t kVFPZConditionFlagBit = 1 << 30;
+static const uint32_t kVFPCConditionFlagBit = 1 << 29;
+static const uint32_t kVFPVConditionFlagBit = 1 << 28;
+
+static const uint32_t kVFPFlushToZeroMask = 1 << 24;
+
 static const uint32_t kVFPRoundingModeMask = 3 << 22;
-static const uint32_t kVFPFlushToZeroMask = 1 << 24;
 static const uint32_t kVFPRoundToMinusInfinityBits = 2 << 22;
-static const uint32_t kVFPZConditionFlagBit = 1 << 30;
-static const uint32_t kVFPInvalidExceptionBit = 1;
 
+static const uint32_t kVFPExceptionMask = 0xf;
+
 // Coprocessor register
 struct CRegister {
   bool is_valid() const { return 0 <= code_ && code_ < 16; }