Revert "Reland "ARM64: Add NEON support""

test/cctest/test-utils-arm64.h

Index: test/cctest/test-utils-arm64.h
diff --git a/test/cctest/test-utils-arm64.h b/test/cctest/test-utils-arm64.h
index a8a0b0cbf94a1ae9c823a16a5384fd8d01b91eaa..e34365d4c3066beb27d9cae46e9547395852070b 100644
--- a/test/cctest/test-utils-arm64.h
+++ b/test/cctest/test-utils-arm64.h
@@ -39,11 +39,6 @@
 namespace v8 {
 namespace internal {
 
-// Structure representing Q registers in a RegisterDump.
-struct vec128_t {
-  uint64_t l;
-  uint64_t h;
-};
 
 // RegisterDump: Object allowing integer, floating point and flags registers
 // to be saved to itself for future reference.
@@ -77,14 +72,14 @@ class RegisterDump {
     return dump_.x_[code];
   }
 
-  // VRegister accessors.
+  // FPRegister accessors.
   inline uint32_t sreg_bits(unsigned code) const {
     CHECK(FPRegAliasesMatch(code));
     return dump_.s_[code];
   }
 
   inline float sreg(unsigned code) const {
-    return bit_cast<float>(sreg_bits(code));
+    return rawbits_to_float(sreg_bits(code));
   }
 
   inline uint64_t dreg_bits(unsigned code) const {
@@ -93,11 +88,9 @@ class RegisterDump {
   }
 
   inline double dreg(unsigned code) const {
-    return bit_cast<double>(dreg_bits(code));
+    return rawbits_to_double(dreg_bits(code));
   }
 
-  inline vec128_t qreg(unsigned code) const { return dump_.q_[code]; }
-
   // Stack pointer accessors.
   inline int64_t spreg() const {
     CHECK(SPRegAliasesMatch());
@@ -142,7 +135,7 @@ class RegisterDump {
   // As RegAliasesMatch, but for floating-point registers.
   bool FPRegAliasesMatch(unsigned code) const {
     CHECK(IsComplete());
-    CHECK(code < kNumberOfVRegisters);
+    CHECK(code < kNumberOfFPRegisters);
     return (dump_.d_[code] & kSRegMask) == dump_.s_[code];
   }
 
@@ -154,11 +147,8 @@ class RegisterDump {
     uint32_t w_[kNumberOfRegisters];
 
     // Floating-point registers, as raw bits.
-    uint64_t d_[kNumberOfVRegisters];
-    uint32_t s_[kNumberOfVRegisters];
-
-    // Vector registers.
-    vec128_t q_[kNumberOfVRegisters];
+    uint64_t d_[kNumberOfFPRegisters];
+    uint32_t s_[kNumberOfFPRegisters];
 
     // The stack pointer.
     uint64_t sp_;
@@ -173,18 +163,12 @@ class RegisterDump {
   } dump_;
 
   static dump_t for_sizeof();
-  static_assert(kXRegSize == kDRegSize, "X and D registers must be same size.");
-  static_assert(kWRegSize == kSRegSize, "W and S registers must be same size.");
-  static_assert(sizeof(for_sizeof().q_[0]) == kQRegSize,
-                "Array elements must be size of Q register.");
-  static_assert(sizeof(for_sizeof().d_[0]) == kDRegSize,
-                "Array elements must be size of D register.");
-  static_assert(sizeof(for_sizeof().s_[0]) == kSRegSize,
-                "Array elements must be size of S register.");
-  static_assert(sizeof(for_sizeof().x_[0]) == kXRegSize,
-                "Array elements must be size of X register.");
-  static_assert(sizeof(for_sizeof().w_[0]) == kWRegSize,
-                "Array elements must be size of W register.");
+  STATIC_ASSERT(sizeof(for_sizeof().d_[0]) == kDRegSize);
+  STATIC_ASSERT(sizeof(for_sizeof().s_[0]) == kSRegSize);
+  STATIC_ASSERT(sizeof(for_sizeof().d_[0]) == kXRegSize);
+  STATIC_ASSERT(sizeof(for_sizeof().s_[0]) == kWRegSize);
+  STATIC_ASSERT(sizeof(for_sizeof().x_[0]) == kXRegSize);
+  STATIC_ASSERT(sizeof(for_sizeof().w_[0]) == kWRegSize);
 };
 
 // Some of these methods don't use the RegisterDump argument, but they have to
@@ -199,14 +183,12 @@ bool Equal32(uint32_t expected, const RegisterDump* core, const Register& reg);
 bool Equal64(uint64_t expected, const RegisterDump* core, const Register& reg);
 
 bool EqualFP32(float expected, const RegisterDump* core,
-               const VRegister& fpreg);
+               const FPRegister& fpreg);
 bool EqualFP64(double expected, const RegisterDump* core,
-               const VRegister& fpreg);
+               const FPRegister& fpreg);
 
 bool Equal64(const Register& reg0, const RegisterDump* core,
              const Register& reg1);
-bool Equal128(uint64_t expected_h, uint64_t expected_l,
-              const RegisterDump* core, const VRegister& reg);
 
 bool EqualNzcv(uint32_t expected, uint32_t result);
 
@@ -226,8 +208,8 @@ RegList PopulateRegisterArray(Register* w, Register* x, Register* r,
                               int reg_size, int reg_count, RegList allowed);
 
 // As PopulateRegisterArray, but for floating-point registers.
-RegList PopulateVRegisterArray(VRegister* s, VRegister* d, VRegister* v,
-                               int reg_size, int reg_count, RegList allowed);
+RegList PopulateFPRegisterArray(FPRegister* s, FPRegister* d, FPRegister* v,
+                                int reg_size, int reg_count, RegList allowed);
 
 // Ovewrite the contents of the specified registers. This enables tests to
 // check that register contents are written in cases where it's likely that the