[Arguments] Merge (7442,7496] from bleeding_edge.

src/arm/assembler-arm.cc

 // Copyright (c) 1994-2006 Sun Microsystems Inc.
 // All Rights Reserved.
 //
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions
 // are met:
 //
 // - Redistributions of source code must retain the above copyright notice,
 // this list of conditions and the following disclaimer.
 //
@@ skipping 26 matching lines @@
 #include "v8.h"
 
 #if defined(V8_TARGET_ARCH_ARM)
 
 #include "arm/assembler-arm-inl.h"
 #include "serialize.h"
 
 namespace v8 {
 namespace internal {
 
-CpuFeatures::CpuFeatures()
-    : supported_(0),
-      enabled_(0),
-      found_by_runtime_probing_(0) {
-}
+#ifdef DEBUG
+bool CpuFeatures::initialized_ = false;
+#endif
+unsigned CpuFeatures::supported_ = 0;
+unsigned CpuFeatures::found_by_runtime_probing_ = 0;
+
 
 #ifdef __arm__
 static uint64_t CpuFeaturesImpliedByCompiler() {
   uint64_t answer = 0;
 #ifdef CAN_USE_ARMV7_INSTRUCTIONS
   answer |= 1u << ARMv7;
 #endif  // def CAN_USE_ARMV7_INSTRUCTIONS
   // If the compiler is allowed to use VFP then we can use VFP too in our code
   // generation even when generating snapshots.  This won't work for cross
   // compilation.
 #if defined(__VFP_FP__) && !defined(__SOFTFP__)
   answer |= 1u << VFP3;
 #endif  // defined(__VFP_FP__) && !defined(__SOFTFP__)
 #ifdef CAN_USE_VFP_INSTRUCTIONS
   answer |= 1u << VFP3;
 #endif  // def CAN_USE_VFP_INSTRUCTIONS
   return answer;
 }
 #endif  // def __arm__
 
 
-void CpuFeatures::Probe(bool portable) {
+void CpuFeatures::Probe() {
+  ASSERT(!initialized_);
+#ifdef DEBUG
+  initialized_ = true;
+#endif
 #ifndef __arm__
   // For the simulator=arm build, use VFP when FLAG_enable_vfp3 is enabled.
   if (FLAG_enable_vfp3) {
     supported_ |= 1u << VFP3;
   }
   // For the simulator=arm build, use ARMv7 when FLAG_enable_armv7 is enabled
   if (FLAG_enable_armv7) {
     supported_ |= 1u << ARMv7;
   }
 #else  // def __arm__
-  if (portable && Serializer::enabled()) {
+  if (Serializer::enabled()) {
     supported_ |= OS::CpuFeaturesImpliedByPlatform();
     supported_ |= CpuFeaturesImpliedByCompiler();
     return;  // No features if we might serialize.
   }
 
   if (OS::ArmCpuHasFeature(VFP3)) {
     // This implementation also sets the VFP flags if
     // runtime detection of VFP returns true.
     supported_ |= 1u << VFP3;
     found_by_runtime_probing_ |= 1u << VFP3;
   }
 
   if (OS::ArmCpuHasFeature(ARMv7)) {
     supported_ |= 1u << ARMv7;
     found_by_runtime_probing_ |= 1u << ARMv7;
   }
-
-  if (!portable) found_by_runtime_probing_ = 0;
 #endif
 }
 
 
 // -----------------------------------------------------------------------------
 // Implementation of RelocInfo
 
 const int RelocInfo::kApplyMask = 0;
 
 
@@ skipping 148 matching lines @@
     al | B26 | NegOffset | fp.code() * B16;
 const Instr kLdrStrInstrTypeMask = 0xffff0000;
 const Instr kLdrStrInstrArgumentMask = 0x0000ffff;
 const Instr kLdrStrOffsetMask = 0x00000fff;
 
 
 // Spare buffer.
 static const int kMinimalBufferSize = 4*KB;
 
 
-Assembler::Assembler(void* buffer, int buffer_size)
-    : AssemblerBase(Isolate::Current()),
+Assembler::Assembler(Isolate* arg_isolate, void* buffer, int buffer_size)
+    : AssemblerBase(arg_isolate),
       positions_recorder_(this),
       allow_peephole_optimization_(false),
       emit_debug_code_(FLAG_debug_code) {
   allow_peephole_optimization_ = FLAG_peephole_optimization;
   if (buffer == NULL) {
     // Do our own buffer management.
     if (buffer_size <= kMinimalBufferSize) {
       buffer_size = kMinimalBufferSize;
 
       if (isolate()->assembler_spare_buffer() != NULL) {
@@ skipping 425 matching lines @@
     }
   }
   // If the opcode is one with a complementary version and the complementary
   // immediate fits, change the opcode.
   if (instr != NULL) {
     if ((*instr & kMovMvnMask) == kMovMvnPattern) {
       if (fits_shifter(~imm32, rotate_imm, immed_8, NULL)) {
         *instr ^= kMovMvnFlip;
         return true;
       } else if ((*instr & kMovLeaveCCMask) == kMovLeaveCCPattern) {
-        if (Isolate::Current()->cpu_features()->IsSupported(ARMv7)) {
+        if (CpuFeatures::IsSupported(ARMv7)) {
           if (imm32 < 0x10000) {
             *instr ^= kMovwLeaveCCFlip;
             *instr |= EncodeMovwImmediate(imm32);
             *rotate_imm = *immed_8 = 0;  // Not used for movw.
             return true;
           }
         }
       }
     } else if ((*instr & kCmpCmnMask) == kCmpCmnPattern) {
       if (fits_shifter(-imm32, rotate_imm, immed_8, NULL)) {
@@ skipping 43 matching lines @@
 bool Operand::is_single_instruction(Instr instr) const {
   if (rm_.is_valid()) return true;
   uint32_t dummy1, dummy2;
   if (must_use_constant_pool() ||
       !fits_shifter(imm32_, &dummy1, &dummy2, &instr)) {
     // The immediate operand cannot be encoded as a shifter operand, or use of
     // constant pool is required. For a mov instruction not setting the
     // condition code additional instruction conventions can be used.
     if ((instr & ~kCondMask) == 13*B21) {  // mov, S not set
       if (must_use_constant_pool() ||
-          !Isolate::Current()->cpu_features()->IsSupported(ARMv7)) {
+          !CpuFeatures::IsSupported(ARMv7)) {
         // mov instruction will be an ldr from constant pool (one instruction).
         return true;
       } else {
         // mov instruction will be a mov or movw followed by movt (two
         // instructions).
         return false;
       }
     } else {
       // If this is not a mov or mvn instruction there will always an additional
       // instructions - either mov or ldr. The mov might actually be two
@@ skipping 22 matching lines @@
     if (x.must_use_constant_pool() ||
         !fits_shifter(x.imm32_, &rotate_imm, &immed_8, &instr)) {
       // The immediate operand cannot be encoded as a shifter operand, so load
       // it first to register ip and change the original instruction to use ip.
       // However, if the original instruction is a 'mov rd, x' (not setting the
       // condition code), then replace it with a 'ldr rd, [pc]'.
       CHECK(!rn.is(ip));  // rn should never be ip, or will be trashed
       Condition cond = Instruction::ConditionField(instr);
       if ((instr & ~kCondMask) == 13*B21) {  // mov, S not set
         if (x.must_use_constant_pool() ||
-            !isolate()->cpu_features()->IsSupported(ARMv7)) {
+            !CpuFeatures::IsSupported(ARMv7)) {
           RecordRelocInfo(x.rmode_, x.imm32_);
           ldr(rd, MemOperand(pc, 0), cond);
         } else {
           // Will probably use movw, will certainly not use constant pool.
           mov(rd, Operand(x.imm32_ & 0xffff), LeaveCC, cond);
           movt(rd, static_cast<uint32_t>(x.imm32_) >> 16, cond);
         }
       } else {
         // If this is not a mov or mvn instruction we may still be able to avoid
         // a constant pool entry by using mvn or movw.
@@ skipping 422 matching lines @@
 
 
 // Saturating instructions.
 
 // Unsigned saturate.
 void Assembler::usat(Register dst,
                      int satpos,
                      const Operand& src,
                      Condition cond) {
   // v6 and above.
-  ASSERT(isolate()->cpu_features()->IsSupported(ARMv7));
+  ASSERT(CpuFeatures::IsSupported(ARMv7));
   ASSERT(!dst.is(pc) && !src.rm_.is(pc));
   ASSERT((satpos >= 0) && (satpos <= 31));
   ASSERT((src.shift_op_ == ASR) || (src.shift_op_ == LSL));
   ASSERT(src.rs_.is(no_reg));
 
   int sh = 0;
   if (src.shift_op_ == ASR) {
       sh = 1;
   }
 
   emit(cond | 0x6*B24 | 0xe*B20 | satpos*B16 | dst.code()*B12 |
        src.shift_imm_*B7 | sh*B6 | 0x1*B4 | src.rm_.code());
 }
 
 
 // Bitfield manipulation instructions.
 
 // Unsigned bit field extract.
 // Extracts #width adjacent bits from position #lsb in a register, and
 // writes them to the low bits of a destination register.
 //   ubfx dst, src, #lsb, #width
 void Assembler::ubfx(Register dst,
                      Register src,
                      int lsb,
                      int width,
                      Condition cond) {
   // v7 and above.
-  ASSERT(isolate()->cpu_features()->IsSupported(ARMv7));
+  ASSERT(CpuFeatures::IsSupported(ARMv7));
   ASSERT(!dst.is(pc) && !src.is(pc));
   ASSERT((lsb >= 0) && (lsb <= 31));
   ASSERT((width >= 1) && (width <= (32 - lsb)));
   emit(cond | 0xf*B23 | B22 | B21 | (width - 1)*B16 | dst.code()*B12 |
        lsb*B7 | B6 | B4 | src.code());
 }
 
 
 // Signed bit field extract.
 // Extracts #width adjacent bits from position #lsb in a register, and
 // writes them to the low bits of a destination register. The extracted
 // value is sign extended to fill the destination register.
 //   sbfx dst, src, #lsb, #width
 void Assembler::sbfx(Register dst,
                      Register src,
                      int lsb,
                      int width,
                      Condition cond) {
   // v7 and above.
-  ASSERT(isolate()->cpu_features()->IsSupported(ARMv7));
+  ASSERT(CpuFeatures::IsSupported(ARMv7));
   ASSERT(!dst.is(pc) && !src.is(pc));
   ASSERT((lsb >= 0) && (lsb <= 31));
   ASSERT((width >= 1) && (width <= (32 - lsb)));
   emit(cond | 0xf*B23 | B21 | (width - 1)*B16 | dst.code()*B12 |
        lsb*B7 | B6 | B4 | src.code());
 }
 
 
 // Bit field clear.
 // Sets #width adjacent bits at position #lsb in the destination register
 // to zero, preserving the value of the other bits.
 //   bfc dst, #lsb, #width
 void Assembler::bfc(Register dst, int lsb, int width, Condition cond) {
   // v7 and above.
-  ASSERT(isolate()->cpu_features()->IsSupported(ARMv7));
+  ASSERT(CpuFeatures::IsSupported(ARMv7));
   ASSERT(!dst.is(pc));
   ASSERT((lsb >= 0) && (lsb <= 31));
   ASSERT((width >= 1) && (width <= (32 - lsb)));
   int msb = lsb + width - 1;
   emit(cond | 0x1f*B22 | msb*B16 | dst.code()*B12 | lsb*B7 | B4 | 0xf);
 }
 
 
 // Bit field insert.
 // Inserts #width adjacent bits from the low bits of the source register
 // into position #lsb of the destination register.
 //   bfi dst, src, #lsb, #width
 void Assembler::bfi(Register dst,
                     Register src,
                     int lsb,
                     int width,
                     Condition cond) {
   // v7 and above.
-  ASSERT(isolate()->cpu_features()->IsSupported(ARMv7));
+  ASSERT(CpuFeatures::IsSupported(ARMv7));
   ASSERT(!dst.is(pc) && !src.is(pc));
   ASSERT((lsb >= 0) && (lsb <= 31));
   ASSERT((width >= 1) && (width <= (32 - lsb)));
   int msb = lsb + width - 1;
   emit(cond | 0x1f*B22 | msb*B16 | dst.code()*B12 | lsb*B7 | B4 |
        src.code());
 }
 
 
 // Status register access instructions.
@@ skipping 251 matching lines @@
 }
 
 
 void Assembler::ldrsh(Register dst, const MemOperand& src, Condition cond) {
   addrmod3(cond | L | B7 | S6 | H | B4, dst, src);
 }
 
 
 void Assembler::ldrd(Register dst1, Register dst2,
                      const MemOperand& src, Condition cond) {
-  ASSERT(isolate()->cpu_features()->IsEnabled(ARMv7));
+  ASSERT(CpuFeatures::IsEnabled(ARMv7));
   ASSERT(src.rm().is(no_reg));
   ASSERT(!dst1.is(lr));  // r14.
   ASSERT_EQ(0, dst1.code() % 2);
   ASSERT_EQ(dst1.code() + 1, dst2.code());
   addrmod3(cond | B7 | B6 | B4, dst1, src);
 }
 
 
 void Assembler::strd(Register src1, Register src2,
                      const MemOperand& dst, Condition cond) {
   ASSERT(dst.rm().is(no_reg));
   ASSERT(!src1.is(lr));  // r14.
   ASSERT_EQ(0, src1.code() % 2);
   ASSERT_EQ(src1.code() + 1, src2.code());
-  ASSERT(isolate()->cpu_features()->IsEnabled(ARMv7));
+  ASSERT(CpuFeatures::IsEnabled(ARMv7));
   addrmod3(cond | B7 | B6 | B5 | B4, src1, dst);
 }
 
 // Load/Store multiple instructions.
 void Assembler::ldm(BlockAddrMode am,
                     Register base,
                     RegList dst,
                     Condition cond) {
   // ABI stack constraint: ldmxx base, {..sp..}  base != sp  is not restartable.
   ASSERT(base.is(sp) || (dst & sp.bit()) == 0);
@@ skipping 215 matching lines @@
 // Support for VFP.
 
 void Assembler::vldr(const DwVfpRegister dst,
                      const Register base,
                      int offset,
                      const Condition cond) {
   // Ddst = MEM(Rbase + offset).
   // Instruction details available in ARM DDI 0406A, A8-628.
   // cond(31-28) | 1101(27-24)| U001(23-20) | Rbase(19-16) |
   // Vdst(15-12) | 1011(11-8) | offset
-  ASSERT(isolate()->cpu_features()->IsEnabled(VFP3));
+  ASSERT(CpuFeatures::IsEnabled(VFP3));
   int u = 1;
   if (offset < 0) {
     offset = -offset;
     u = 0;
   }
 
   ASSERT(offset >= 0);
   if ((offset % 4) == 0 && (offset / 4) < 256) {
     emit(cond | u*B23 | 0xD1*B20 | base.code()*B16 | dst.code()*B12 |
          0xB*B8 | ((offset / 4) & 255));
@@ skipping 21 matching lines @@
 
 
 void Assembler::vldr(const SwVfpRegister dst,
                      const Register base,
                      int offset,
                      const Condition cond) {
   // Sdst = MEM(Rbase + offset).
   // Instruction details available in ARM DDI 0406A, A8-628.
   // cond(31-28) | 1101(27-24)| U001(23-20) | Rbase(19-16) |
   // Vdst(15-12) | 1010(11-8) | offset
-  ASSERT(isolate()->cpu_features()->IsEnabled(VFP3));
+  ASSERT(CpuFeatures::IsEnabled(VFP3));
   int u = 1;
   if (offset < 0) {
     offset = -offset;
     u = 0;
   }
   int sd, d;
   dst.split_code(&sd, &d);
   ASSERT(offset >= 0);
 
   if ((offset % 4) == 0 && (offset / 4) < 256) {
@@ skipping 23 matching lines @@
 
 
 void Assembler::vstr(const DwVfpRegister src,
                      const Register base,
                      int offset,
                      const Condition cond) {
   // MEM(Rbase + offset) = Dsrc.
   // Instruction details available in ARM DDI 0406A, A8-786.
   // cond(31-28) | 1101(27-24)| U000(23-20) | | Rbase(19-16) |
   // Vsrc(15-12) | 1011(11-8) | (offset/4)
-  ASSERT(isolate()->cpu_features()->IsEnabled(VFP3));
+  ASSERT(CpuFeatures::IsEnabled(VFP3));
   int u = 1;
   if (offset < 0) {
     offset = -offset;
     u = 0;
   }
   ASSERT(offset >= 0);
   if ((offset % 4) == 0 && (offset / 4) < 256) {
     emit(cond | u*B23 | 0xD0*B20 | base.code()*B16 | src.code()*B12 |
          0xB*B8 | ((offset / 4) & 255));
   } else {
@@ skipping 20 matching lines @@
 
 
 void Assembler::vstr(const SwVfpRegister src,
                      const Register base,
                      int offset,
                      const Condition cond) {
   // MEM(Rbase + offset) = SSrc.
   // Instruction details available in ARM DDI 0406A, A8-786.
   // cond(31-28) | 1101(27-24)| U000(23-20) | Rbase(19-16) |
   // Vdst(15-12) | 1010(11-8) | (offset/4)
-  ASSERT(isolate()->cpu_features()->IsEnabled(VFP3));
+  ASSERT(CpuFeatures::IsEnabled(VFP3));
   int u = 1;
   if (offset < 0) {
     offset = -offset;
     u = 0;
   }
   int sd, d;
   src.split_code(&sd, &d);
   ASSERT(offset >= 0);
   if ((offset % 4) == 0 && (offset / 4) < 256) {
     emit(cond | u*B23 | d*B22 | 0xD0*B20 | base.code()*B16 | sd*B12 |
@@ skipping 25 matching lines @@
   uint64_t i;
   memcpy(&i, &d, 8);
 
   *lo = i & 0xffffffff;
   *hi = i >> 32;
 }
 
 // Only works for little endian floating point formats.
 // We don't support VFP on the mixed endian floating point platform.
 static bool FitsVMOVDoubleImmediate(double d, uint32_t *encoding) {
-  ASSERT(Isolate::Current()->cpu_features()->IsEnabled(VFP3));
+  ASSERT(CpuFeatures::IsEnabled(VFP3));
 
   // VMOV can accept an immediate of the form:
   //
   //  +/- m * 2^(-n) where 16 <= m <= 31 and 0 <= n <= 7
   //
   // The immediate is encoded using an 8-bit quantity, comprised of two
   // 4-bit fields. For an 8-bit immediate of the form:
   //
   //  [abcdefgh]
   //
@@ skipping 32 matching lines @@
 
   return true;
 }
 
 
 void Assembler::vmov(const DwVfpRegister dst,
                      double imm,
                      const Condition cond) {
   // Dd = immediate
   // Instruction details available in ARM DDI 0406B, A8-640.
-  ASSERT(isolate()->cpu_features()->IsEnabled(VFP3));
+  ASSERT(CpuFeatures::IsEnabled(VFP3));
 
   uint32_t enc;
   if (FitsVMOVDoubleImmediate(imm, &enc)) {
     // The double can be encoded in the instruction.
     emit(cond | 0xE*B24 | 0xB*B20 | dst.code()*B12 | 0xB*B8 | enc);
   } else {
     // Synthesise the double from ARM immediates. This could be implemented
     // using vldr from a constant pool.
     uint32_t lo, hi;
     DoubleAsTwoUInt32(imm, &lo, &hi);
@@ skipping 16 matching lines @@
     }
   }
 }
 
 
 void Assembler::vmov(const SwVfpRegister dst,
                      const SwVfpRegister src,
                      const Condition cond) {
   // Sd = Sm
   // Instruction details available in ARM DDI 0406B, A8-642.
-  ASSERT(isolate()->cpu_features()->IsEnabled(VFP3));
+  ASSERT(CpuFeatures::IsEnabled(VFP3));
   int sd, d, sm, m;
   dst.split_code(&sd, &d);
   src.split_code(&sm, &m);
   emit(cond | 0xE*B24 | d*B22 | 0xB*B20 | sd*B12 | 0xA*B8 | B6 | m*B5 | sm);
 }
 
 
 void Assembler::vmov(const DwVfpRegister dst,
                      const DwVfpRegister src,
                      const Condition cond) {
   // Dd = Dm
   // Instruction details available in ARM DDI 0406B, A8-642.
-  ASSERT(isolate()->cpu_features()->IsEnabled(VFP3));
+  ASSERT(CpuFeatures::IsEnabled(VFP3));
   emit(cond | 0xE*B24 | 0xB*B20 |
        dst.code()*B12 | 0x5*B9 | B8 | B6 | src.code());
 }
 
 
 void Assembler::vmov(const DwVfpRegister dst,
                      const Register src1,
                      const Register src2,
                      const Condition cond) {
   // Dm = <Rt,Rt2>.
   // Instruction details available in ARM DDI 0406A, A8-646.
   // cond(31-28) | 1100(27-24)| 010(23-21) | op=0(20) | Rt2(19-16) |
   // Rt(15-12) | 1011(11-8) | 00(7-6) | M(5) | 1(4) | Vm
-  ASSERT(isolate()->cpu_features()->IsEnabled(VFP3));
+  ASSERT(CpuFeatures::IsEnabled(VFP3));
   ASSERT(!src1.is(pc) && !src2.is(pc));
   emit(cond | 0xC*B24 | B22 | src2.code()*B16 |
        src1.code()*B12 | 0xB*B8 | B4 | dst.code());
 }
 
 
 void Assembler::vmov(const Register dst1,
                      const Register dst2,
                      const DwVfpRegister src,
                      const Condition cond) {
   // <Rt,Rt2> = Dm.
   // Instruction details available in ARM DDI 0406A, A8-646.
   // cond(31-28) | 1100(27-24)| 010(23-21) | op=1(20) | Rt2(19-16) |
   // Rt(15-12) | 1011(11-8) | 00(7-6) | M(5) | 1(4) | Vm
-  ASSERT(isolate()->cpu_features()->IsEnabled(VFP3));
+  ASSERT(CpuFeatures::IsEnabled(VFP3));
   ASSERT(!dst1.is(pc) && !dst2.is(pc));
   emit(cond | 0xC*B24 | B22 | B20 | dst2.code()*B16 |
        dst1.code()*B12 | 0xB*B8 | B4 | src.code());
 }
 
 
 void Assembler::vmov(const SwVfpRegister dst,
                      const Register src,
                      const Condition cond) {
   // Sn = Rt.
   // Instruction details available in ARM DDI 0406A, A8-642.
   // cond(31-28) | 1110(27-24)| 000(23-21) | op=0(20) | Vn(19-16) |
   // Rt(15-12) | 1010(11-8) | N(7)=0 | 00(6-5) | 1(4) | 0000(3-0)
-  ASSERT(isolate()->cpu_features()->IsEnabled(VFP3));
+  ASSERT(CpuFeatures::IsEnabled(VFP3));
   ASSERT(!src.is(pc));
   int sn, n;
   dst.split_code(&sn, &n);
   emit(cond | 0xE*B24 | sn*B16 | src.code()*B12 | 0xA*B8 | n*B7 | B4);
 }
 
 
 void Assembler::vmov(const Register dst,
                      const SwVfpRegister src,
                      const Condition cond) {
   // Rt = Sn.
   // Instruction details available in ARM DDI 0406A, A8-642.
   // cond(31-28) | 1110(27-24)| 000(23-21) | op=1(20) | Vn(19-16) |
   // Rt(15-12) | 1010(11-8) | N(7)=0 | 00(6-5) | 1(4) | 0000(3-0)
-  ASSERT(isolate()->cpu_features()->IsEnabled(VFP3));
+  ASSERT(CpuFeatures::IsEnabled(VFP3));
   ASSERT(!dst.is(pc));
   int sn, n;
   src.split_code(&sn, &n);
   emit(cond | 0xE*B24 | B20 | sn*B16 | dst.code()*B12 | 0xA*B8 | n*B7 | B4);
 }
 
 
 // Type of data to read from or write to VFP register.
 // Used as specifier in generic vcvt instruction.
 enum VFPType { S32, U32, F32, F64 };
@@ skipping 104 matching lines @@
     return (cond | 0xE*B24 | B23 | D*B22 | 0x3*B20 | 0x7*B16 |
             Vd*B12 | 0x5*B9 | sz*B8 | B7 | B6 | M*B5 | Vm);
   }
 }
 
 
 void Assembler::vcvt_f64_s32(const DwVfpRegister dst,
                              const SwVfpRegister src,
                              VFPConversionMode mode,
                              const Condition cond) {
-  ASSERT(isolate()->cpu_features()->IsEnabled(VFP3));
+  ASSERT(CpuFeatures::IsEnabled(VFP3));
   emit(EncodeVCVT(F64, dst.code(), S32, src.code(), mode, cond));
 }
 
 
 void Assembler::vcvt_f32_s32(const SwVfpRegister dst,
                              const SwVfpRegister src,
                              VFPConversionMode mode,
                              const Condition cond) {
-  ASSERT(isolate()->cpu_features()->IsEnabled(VFP3));
+  ASSERT(CpuFeatures::IsEnabled(VFP3));
   emit(EncodeVCVT(F32, dst.code(), S32, src.code(), mode, cond));
 }
 
 
 void Assembler::vcvt_f64_u32(const DwVfpRegister dst,
                              const SwVfpRegister src,
                              VFPConversionMode mode,
                              const Condition cond) {
-  ASSERT(isolate()->cpu_features()->IsEnabled(VFP3));
+  ASSERT(CpuFeatures::IsEnabled(VFP3));
   emit(EncodeVCVT(F64, dst.code(), U32, src.code(), mode, cond));
 }
 
 
 void Assembler::vcvt_s32_f64(const SwVfpRegister dst,
                              const DwVfpRegister src,
                              VFPConversionMode mode,
                              const Condition cond) {
-  ASSERT(isolate()->cpu_features()->IsEnabled(VFP3));
+  ASSERT(CpuFeatures::IsEnabled(VFP3));
   emit(EncodeVCVT(S32, dst.code(), F64, src.code(), mode, cond));
 }
 
 
 void Assembler::vcvt_u32_f64(const SwVfpRegister dst,
                              const DwVfpRegister src,
                              VFPConversionMode mode,
                              const Condition cond) {
-  ASSERT(isolate()->cpu_features()->IsEnabled(VFP3));
+  ASSERT(CpuFeatures::IsEnabled(VFP3));
   emit(EncodeVCVT(U32, dst.code(), F64, src.code(), mode, cond));
 }
 
 
 void Assembler::vcvt_f64_f32(const DwVfpRegister dst,
                              const SwVfpRegister src,
                              VFPConversionMode mode,
                              const Condition cond) {
-  ASSERT(isolate()->cpu_features()->IsEnabled(VFP3));
+  ASSERT(CpuFeatures::IsEnabled(VFP3));
   emit(EncodeVCVT(F64, dst.code(), F32, src.code(), mode, cond));
 }
 
 
 void Assembler::vcvt_f32_f64(const SwVfpRegister dst,
                              const DwVfpRegister src,
                              VFPConversionMode mode,
                              const Condition cond) {
-  ASSERT(isolate()->cpu_features()->IsEnabled(VFP3));
+  ASSERT(CpuFeatures::IsEnabled(VFP3));
   emit(EncodeVCVT(F32, dst.code(), F64, src.code(), mode, cond));
 }
 
 
 void Assembler::vneg(const DwVfpRegister dst,
                      const DwVfpRegister src,
                      const Condition cond) {
   emit(cond | 0xE*B24 | 0xB*B20 | B16 | dst.code()*B12 |
        0x5*B9 | B8 | B6 | src.code());
 }
 
 
 void Assembler::vabs(const DwVfpRegister dst,
                      const DwVfpRegister src,
                      const Condition cond) {
   emit(cond | 0xE*B24 | 0xB*B20 | dst.code()*B12 |
        0x5*B9 | B8 | 0x3*B6 | src.code());
 }
 
 
 void Assembler::vadd(const DwVfpRegister dst,
                      const DwVfpRegister src1,
                      const DwVfpRegister src2,
                      const Condition cond) {
   // Dd = vadd(Dn, Dm) double precision floating point addition.
   // Dd = D:Vd; Dm=M:Vm; Dn=N:Vm.
   // Instruction details available in ARM DDI 0406A, A8-536.
   // cond(31-28) | 11100(27-23)| D=?(22) | 11(21-20) | Vn(19-16) |
   // Vd(15-12) | 101(11-9) | sz(8)=1 | N(7)=0 | 0(6) | M=?(5) | 0(4) | Vm(3-0)
-  ASSERT(isolate()->cpu_features()->IsEnabled(VFP3));
+  ASSERT(CpuFeatures::IsEnabled(VFP3));
   emit(cond | 0xE*B24 | 0x3*B20 | src1.code()*B16 |
        dst.code()*B12 | 0x5*B9 | B8 | src2.code());
 }
 
 
 void Assembler::vsub(const DwVfpRegister dst,
                      const DwVfpRegister src1,
                      const DwVfpRegister src2,
                      const Condition cond) {
   // Dd = vsub(Dn, Dm) double precision floating point subtraction.
   // Dd = D:Vd; Dm=M:Vm; Dn=N:Vm.
   // Instruction details available in ARM DDI 0406A, A8-784.
   // cond(31-28) | 11100(27-23)| D=?(22) | 11(21-20) | Vn(19-16) |
   // Vd(15-12) | 101(11-9) | sz(8)=1 | N(7)=0 | 1(6) | M=?(5) | 0(4) | Vm(3-0)
-  ASSERT(isolate()->cpu_features()->IsEnabled(VFP3));
+  ASSERT(CpuFeatures::IsEnabled(VFP3));
   emit(cond | 0xE*B24 | 0x3*B20 | src1.code()*B16 |
        dst.code()*B12 | 0x5*B9 | B8 | B6 | src2.code());
 }
 
 
 void Assembler::vmul(const DwVfpRegister dst,
                      const DwVfpRegister src1,
                      const DwVfpRegister src2,
                      const Condition cond) {
   // Dd = vmul(Dn, Dm) double precision floating point multiplication.
   // Dd = D:Vd; Dm=M:Vm; Dn=N:Vm.
   // Instruction details available in ARM DDI 0406A, A8-784.
   // cond(31-28) | 11100(27-23)| D=?(22) | 10(21-20) | Vn(19-16) |
   // Vd(15-12) | 101(11-9) | sz(8)=1 | N(7)=0 | 0(6) | M=?(5) | 0(4) | Vm(3-0)
-  ASSERT(isolate()->cpu_features()->IsEnabled(VFP3));
+  ASSERT(CpuFeatures::IsEnabled(VFP3));
   emit(cond | 0xE*B24 | 0x2*B20 | src1.code()*B16 |
        dst.code()*B12 | 0x5*B9 | B8 | src2.code());
 }
 
 
 void Assembler::vdiv(const DwVfpRegister dst,
                      const DwVfpRegister src1,
                      const DwVfpRegister src2,
                      const Condition cond) {
   // Dd = vdiv(Dn, Dm) double precision floating point division.
   // Dd = D:Vd; Dm=M:Vm; Dn=N:Vm.
   // Instruction details available in ARM DDI 0406A, A8-584.
   // cond(31-28) | 11101(27-23)| D=?(22) | 00(21-20) | Vn(19-16) |
   // Vd(15-12) | 101(11-9) | sz(8)=1 | N(7)=? | 0(6) | M=?(5) | 0(4) | Vm(3-0)
-  ASSERT(isolate()->cpu_features()->IsEnabled(VFP3));
+  ASSERT(CpuFeatures::IsEnabled(VFP3));
   emit(cond | 0xE*B24 | B23 | src1.code()*B16 |
        dst.code()*B12 | 0x5*B9 | B8 | src2.code());
 }
 
 
 void Assembler::vcmp(const DwVfpRegister src1,
                      const DwVfpRegister src2,
                      const Condition cond) {
   // vcmp(Dd, Dm) double precision floating point comparison.
   // Instruction details available in ARM DDI 0406A, A8-570.
   // cond(31-28) | 11101 (27-23)| D=?(22) | 11 (21-20) | 0100 (19-16) |
   // Vd(15-12) | 101(11-9) | sz(8)=1 | E(7)=0 | 1(6) | M(5)=? | 0(4) | Vm(3-0)
-  ASSERT(isolate()->cpu_features()->IsEnabled(VFP3));
+  ASSERT(CpuFeatures::IsEnabled(VFP3));
   emit(cond | 0xE*B24 |B23 | 0x3*B20 | B18 |
        src1.code()*B12 | 0x5*B9 | B8 | B6 | src2.code());
 }
 
 
 void Assembler::vcmp(const DwVfpRegister src1,
                      const double src2,
                      const Condition cond) {
   // vcmp(Dd, Dm) double precision floating point comparison.
   // Instruction details available in ARM DDI 0406A, A8-570.
   // cond(31-28) | 11101 (27-23)| D=?(22) | 11 (21-20) | 0101 (19-16) |
   // Vd(15-12) | 101(11-9) | sz(8)=1 | E(7)=0 | 1(6) | M(5)=? | 0(4) | 0000(3-0)
-  ASSERT(isolate()->cpu_features()->IsEnabled(VFP3));
+  ASSERT(CpuFeatures::IsEnabled(VFP3));
   ASSERT(src2 == 0.0);
   emit(cond | 0xE*B24 |B23 | 0x3*B20 | B18 | B16 |
        src1.code()*B12 | 0x5*B9 | B8 | B6);
 }
 
 
 void Assembler::vmsr(Register dst, Condition cond) {
   // Instruction details available in ARM DDI 0406A, A8-652.
   // cond(31-28) | 1110 (27-24) | 1110(23-20)| 0001 (19-16) |
   // Rt(15-12) | 1010 (11-8) | 0(7) | 00 (6-5) | 1(4) | 0000(3-0)
-  ASSERT(isolate()->cpu_features()->IsEnabled(VFP3));
+  ASSERT(CpuFeatures::IsEnabled(VFP3));
   emit(cond | 0xE*B24 | 0xE*B20 |  B16 |
        dst.code()*B12 | 0xA*B8 | B4);
 }
 
 
 void Assembler::vmrs(Register dst, Condition cond) {
   // Instruction details available in ARM DDI 0406A, A8-652.
   // cond(31-28) | 1110 (27-24) | 1111(23-20)| 0001 (19-16) |
   // Rt(15-12) | 1010 (11-8) | 0(7) | 00 (6-5) | 1(4) | 0000(3-0)
-  ASSERT(isolate()->cpu_features()->IsEnabled(VFP3));
+  ASSERT(CpuFeatures::IsEnabled(VFP3));
   emit(cond | 0xE*B24 | 0xF*B20 |  B16 |
        dst.code()*B12 | 0xA*B8 | B4);
 }
 
 
 void Assembler::vsqrt(const DwVfpRegister dst,
                       const DwVfpRegister src,
                       const Condition cond) {
   // cond(31-28) | 11101 (27-23)| D=?(22) | 11 (21-20) | 0001 (19-16) |
   // Vd(15-12) | 101(11-9) | sz(8)=1 | 11 (7-6) | M(5)=? | 0(4) | Vm(3-0)
-  ASSERT(isolate()->cpu_features()->IsEnabled(VFP3));
+  ASSERT(CpuFeatures::IsEnabled(VFP3));
   emit(cond | 0xE*B24 | B23 | 0x3*B20 | B16 |
        dst.code()*B12 | 0x5*B9 | B8 | 3*B6 | src.code());
 }
 
 
 // Pseudo instructions.
 void Assembler::nop(int type) {
   // This is mov rx, rx.
   ASSERT(0 <= type && type <= 14);  // mov pc, pc is not a nop.
   emit(al | 13*B21 | type*B12 | type);
@@ skipping 253 matching lines @@
 
   // Since a constant pool was just emitted, move the check offset forward by
   // the standard interval.
   next_buffer_check_ = pc_offset() + kCheckConstInterval;
 }
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_ARM