Merge V8 5.4.500.40

Test: Manual - built & ran d8
Change-Id: I4edfa2853d3e565b729723645395688ece3193f4
diff --git a/src/compiler/instruction-codes.h b/src/compiler/instruction-codes.h
index 0b3132f..c6689d8 100644
--- a/src/compiler/instruction-codes.h
+++ b/src/compiler/instruction-codes.h
@@ -57,6 +57,7 @@
   V(ArchTableSwitch)                      \
   V(ArchNop)                              \
   V(ArchDebugBreak)                       \
+  V(ArchImpossible)                       \
   V(ArchComment)                          \
   V(ArchThrowTerminator)                  \
   V(ArchDeoptimize)                       \
@@ -89,19 +90,27 @@
   V(AtomicStoreWord8)                     \
   V(AtomicStoreWord16)                    \
   V(AtomicStoreWord32)                    \
+  V(Ieee754Float64Acos)                   \
+  V(Ieee754Float64Acosh)                  \
+  V(Ieee754Float64Asin)                   \
+  V(Ieee754Float64Asinh)                  \
   V(Ieee754Float64Atan)                   \
-  V(Ieee754Float64Atan2)                  \
   V(Ieee754Float64Atanh)                  \
+  V(Ieee754Float64Atan2)                  \
   V(Ieee754Float64Cbrt)                   \
   V(Ieee754Float64Cos)                    \
+  V(Ieee754Float64Cosh)                   \
   V(Ieee754Float64Exp)                    \
   V(Ieee754Float64Expm1)                  \
   V(Ieee754Float64Log)                    \
   V(Ieee754Float64Log1p)                  \
   V(Ieee754Float64Log10)                  \
   V(Ieee754Float64Log2)                   \
+  V(Ieee754Float64Pow)                    \
   V(Ieee754Float64Sin)                    \
-  V(Ieee754Float64Tan)
+  V(Ieee754Float64Sinh)                   \
+  V(Ieee754Float64Tan)                    \
+  V(Ieee754Float64Tanh)
 
 #define ARCH_OPCODE_LIST(V)  \
   COMMON_ARCH_OPCODE_LIST(V) \
@@ -170,7 +179,9 @@
   kUnorderedEqual,
   kUnorderedNotEqual,
   kOverflow,
-  kNotOverflow
+  kNotOverflow,
+  kPositiveOrZero,
+  kNegative
 };
 
 inline FlagsCondition NegateFlagsCondition(FlagsCondition condition) {