JavaScriptCore-1097.3.3.tar.gz

[apple/javascriptcore.git] / assembler / MacroAssemblerARM.h

diff --git a/assembler/MacroAssemblerARM.h b/assembler/MacroAssemblerARM.h
index 21b8de8fffdde06583d34c31acd03f2f0d48178e..829ec532e924b6a7db3f78dbb9b912e20eb23a03 100644 (file)
--- a/assembler/MacroAssemblerARM.h
+++ b/assembler/MacroAssemblerARM.h
@@ -1,6 +1,6 @@
 /*
  * Copyright (C) 2008 Apple Inc.
 /*
  * Copyright (C) 2008 Apple Inc.

- * Copyright (C) 2009 University of Szeged
+ * Copyright (C) 2009, 2010 University of Szeged

  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without


@@ -28,8 +28,6 @@
 #ifndef MacroAssemblerARM_h
 #define MacroAssemblerARM_h
 
 #ifndef MacroAssemblerARM_h
 #define MacroAssemblerARM_h
 

-#include <wtf/Platform.h>
-

 #if ENABLE(ASSEMBLER) && CPU(ARM_TRADITIONAL)
 
 #include "ARMAssembler.h"
 #if ENABLE(ASSEMBLER) && CPU(ARM_TRADITIONAL)
 
 #include "ARMAssembler.h"


@@ -42,7 +40,10 @@ class MacroAssemblerARM : public AbstractMacroAssembler<ARMAssembler> {
     static const int DoubleConditionBitSpecial = 0x10;
     COMPILE_ASSERT(!(DoubleConditionBitSpecial & DoubleConditionMask), DoubleConditionBitSpecial_should_not_interfere_with_ARMAssembler_Condition_codes);
 public:
     static const int DoubleConditionBitSpecial = 0x10;
     COMPILE_ASSERT(!(DoubleConditionBitSpecial & DoubleConditionMask), DoubleConditionBitSpecial_should_not_interfere_with_ARMAssembler_Condition_codes);
 public:

-    enum Condition {
+    typedef ARMRegisters::FPRegisterID FPRegisterID;
+    static const int MaximumCompactPtrAlignedAddressOffset = 0x7FFFFFFF;
+
+    enum RelationalCondition {

         Equal = ARMAssembler::EQ,
         NotEqual = ARMAssembler::NE,
         Above = ARMAssembler::HI,
         Equal = ARMAssembler::EQ,
         NotEqual = ARMAssembler::NE,
         Above = ARMAssembler::HI,


@@ -52,7 +53,10 @@ public:
         GreaterThan = ARMAssembler::GT,
         GreaterThanOrEqual = ARMAssembler::GE,
         LessThan = ARMAssembler::LT,
         GreaterThan = ARMAssembler::GT,
         GreaterThanOrEqual = ARMAssembler::GE,
         LessThan = ARMAssembler::LT,

-        LessThanOrEqual = ARMAssembler::LE,
+        LessThanOrEqual = ARMAssembler::LE
+    };
+
+    enum ResultCondition {

         Overflow = ARMAssembler::VS,
         Signed = ARMAssembler::MI,
         Zero = ARMAssembler::EQ,
         Overflow = ARMAssembler::VS,
         Signed = ARMAssembler::MI,
         Zero = ARMAssembler::EQ,


@@ -86,14 +90,14 @@ public:
         m_assembler.adds_r(dest, dest, src);
     }
 
         m_assembler.adds_r(dest, dest, src);
     }
 

-    void add32(Imm32 imm, Address address)
+    void add32(TrustedImm32 imm, Address address)

     {
         load32(address, ARMRegisters::S1);
         add32(imm, ARMRegisters::S1);
         store32(ARMRegisters::S1, address);
     }
 
     {
         load32(address, ARMRegisters::S1);
         add32(imm, ARMRegisters::S1);
         store32(ARMRegisters::S1, address);
     }
 

-    void add32(Imm32 imm, RegisterID dest)
+    void add32(TrustedImm32 imm, RegisterID dest)

     {
         m_assembler.adds_r(dest, dest, m_assembler.getImm(imm.m_value, ARMRegisters::S0));
     }
     {
         m_assembler.adds_r(dest, dest, m_assembler.getImm(imm.m_value, ARMRegisters::S0));
     }


@@ -104,12 +108,17 @@ public:
         add32(ARMRegisters::S1, dest);
     }
 
         add32(ARMRegisters::S1, dest);
     }
 

+    void add32(RegisterID src, TrustedImm32 imm, RegisterID dest)
+    {
+        m_assembler.adds_r(dest, src, m_assembler.getImm(imm.m_value, ARMRegisters::S0));
+    }
+

     void and32(RegisterID src, RegisterID dest)
     {
         m_assembler.ands_r(dest, dest, src);
     }
 
     void and32(RegisterID src, RegisterID dest)
     {
         m_assembler.ands_r(dest, dest, src);
     }
 

-    void and32(Imm32 imm, RegisterID dest)
+    void and32(TrustedImm32 imm, RegisterID dest)

     {
         ARMWord w = m_assembler.getImm(imm.m_value, ARMRegisters::S0, true);
         if (w & ARMAssembler::OP2_INV_IMM)
     {
         ARMWord w = m_assembler.getImm(imm.m_value, ARMRegisters::S0, true);
         if (w & ARMAssembler::OP2_INV_IMM)


@@ -118,6 +127,15 @@ public:
             m_assembler.ands_r(dest, dest, w);
     }
 
             m_assembler.ands_r(dest, dest, w);
     }
 

+    void and32(TrustedImm32 imm, RegisterID src, RegisterID dest)
+    {
+        ARMWord w = m_assembler.getImm(imm.m_value, ARMRegisters::S0, true);
+        if (w & ARMAssembler::OP2_INV_IMM)
+            m_assembler.bics_r(dest, src, w & ~ARMAssembler::OP2_INV_IMM);
+        else
+            m_assembler.ands_r(dest, src, w);
+    }
+

     void lshift32(RegisterID shift_amount, RegisterID dest)
     {
         ARMWord w = ARMAssembler::getOp2(0x1f);
     void lshift32(RegisterID shift_amount, RegisterID dest)
     {
         ARMWord w = ARMAssembler::getOp2(0x1f);


@@ -127,11 +145,16 @@ public:
         m_assembler.movs_r(dest, m_assembler.lsl_r(dest, ARMRegisters::S0));
     }
 
         m_assembler.movs_r(dest, m_assembler.lsl_r(dest, ARMRegisters::S0));
     }
 

-    void lshift32(Imm32 imm, RegisterID dest)
+    void lshift32(TrustedImm32 imm, RegisterID dest)

     {
         m_assembler.movs_r(dest, m_assembler.lsl(dest, imm.m_value & 0x1f));
     }
 
     {
         m_assembler.movs_r(dest, m_assembler.lsl(dest, imm.m_value & 0x1f));
     }
 

+    void lshift32(RegisterID src, TrustedImm32 imm, RegisterID dest)
+    {
+        m_assembler.movs_r(dest, m_assembler.lsl(src, imm.m_value & 0x1f));
+    }
+

     void mul32(RegisterID src, RegisterID dest)
     {
         if (src == dest) {
     void mul32(RegisterID src, RegisterID dest)
     {
         if (src == dest) {


@@ -141,7 +164,7 @@ public:
         m_assembler.muls_r(dest, dest, src);
     }
 
         m_assembler.muls_r(dest, dest, src);
     }
 

-    void mul32(Imm32 imm, RegisterID src, RegisterID dest)
+    void mul32(TrustedImm32 imm, RegisterID src, RegisterID dest)

     {
         move(imm, ARMRegisters::S0);
         m_assembler.muls_r(dest, src, ARMRegisters::S0);
     {
         move(imm, ARMRegisters::S0);
         m_assembler.muls_r(dest, src, ARMRegisters::S0);


@@ -152,21 +175,26 @@ public:
         m_assembler.rsbs_r(srcDest, srcDest, ARMAssembler::getOp2(0));
     }
 
         m_assembler.rsbs_r(srcDest, srcDest, ARMAssembler::getOp2(0));
     }
 

-    void not32(RegisterID dest)
-    {
-        m_assembler.mvns_r(dest, dest);
-    }
-

     void or32(RegisterID src, RegisterID dest)
     {
         m_assembler.orrs_r(dest, dest, src);
     }
 
     void or32(RegisterID src, RegisterID dest)
     {
         m_assembler.orrs_r(dest, dest, src);
     }
 

-    void or32(Imm32 imm, RegisterID dest)
+    void or32(TrustedImm32 imm, RegisterID dest)

     {
         m_assembler.orrs_r(dest, dest, m_assembler.getImm(imm.m_value, ARMRegisters::S0));
     }
 
     {
         m_assembler.orrs_r(dest, dest, m_assembler.getImm(imm.m_value, ARMRegisters::S0));
     }
 

+    void or32(TrustedImm32 imm, RegisterID src, RegisterID dest)
+    {
+        m_assembler.orrs_r(dest, src, m_assembler.getImm(imm.m_value, ARMRegisters::S0));
+    }
+
+    void or32(RegisterID op1, RegisterID op2, RegisterID dest)
+    {
+        m_assembler.orrs_r(dest, op1, op2);
+    }
+

     void rshift32(RegisterID shift_amount, RegisterID dest)
     {
         ARMWord w = ARMAssembler::getOp2(0x1f);
     void rshift32(RegisterID shift_amount, RegisterID dest)
     {
         ARMWord w = ARMAssembler::getOp2(0x1f);


@@ -175,10 +203,34 @@ public:
 
         m_assembler.movs_r(dest, m_assembler.asr_r(dest, ARMRegisters::S0));
     }
 
         m_assembler.movs_r(dest, m_assembler.asr_r(dest, ARMRegisters::S0));
     }

+    
+    void rshift32(TrustedImm32 imm, RegisterID dest)
+    {
+        rshift32(dest, imm, dest);
+    }

 
 

-    void rshift32(Imm32 imm, RegisterID dest)
+    void rshift32(RegisterID src, TrustedImm32 imm, RegisterID dest)

     {
     {

-        m_assembler.movs_r(dest, m_assembler.asr(dest, imm.m_value & 0x1f));
+        m_assembler.movs_r(dest, m_assembler.asr(src, imm.m_value & 0x1f));
+    }
+    
+    void urshift32(RegisterID shift_amount, RegisterID dest)
+    {
+        ARMWord w = ARMAssembler::getOp2(0x1f);
+        ASSERT(w != ARMAssembler::INVALID_IMM);
+        m_assembler.and_r(ARMRegisters::S0, shift_amount, w);
+        
+        m_assembler.movs_r(dest, m_assembler.lsr_r(dest, ARMRegisters::S0));
+    }
+    
+    void urshift32(TrustedImm32 imm, RegisterID dest)
+    {
+        m_assembler.movs_r(dest, m_assembler.lsr(dest, imm.m_value & 0x1f));
+    }
+    
+    void urshift32(RegisterID src, TrustedImm32 imm, RegisterID dest)
+    {
+        m_assembler.movs_r(dest, m_assembler.lsr(src, imm.m_value & 0x1f));

     }
 
     void sub32(RegisterID src, RegisterID dest)
     }
 
     void sub32(RegisterID src, RegisterID dest)


@@ -186,12 +238,12 @@ public:
         m_assembler.subs_r(dest, dest, src);
     }
 
         m_assembler.subs_r(dest, dest, src);
     }
 

-    void sub32(Imm32 imm, RegisterID dest)
+    void sub32(TrustedImm32 imm, RegisterID dest)

     {
         m_assembler.subs_r(dest, dest, m_assembler.getImm(imm.m_value, ARMRegisters::S0));
     }
 
     {
         m_assembler.subs_r(dest, dest, m_assembler.getImm(imm.m_value, ARMRegisters::S0));
     }
 

-    void sub32(Imm32 imm, Address address)
+    void sub32(TrustedImm32 imm, Address address)

     {
         load32(address, ARMRegisters::S1);
         sub32(imm, ARMRegisters::S1);
     {
         load32(address, ARMRegisters::S1);
         sub32(imm, ARMRegisters::S1);


@@ -204,14 +256,51 @@ public:
         sub32(ARMRegisters::S1, dest);
     }
 
         sub32(ARMRegisters::S1, dest);
     }
 

+    void sub32(RegisterID src, TrustedImm32 imm, RegisterID dest)
+    {
+        m_assembler.subs_r(dest, src, m_assembler.getImm(imm.m_value, ARMRegisters::S0));
+    }
+

     void xor32(RegisterID src, RegisterID dest)
     {
         m_assembler.eors_r(dest, dest, src);
     }
 
     void xor32(RegisterID src, RegisterID dest)
     {
         m_assembler.eors_r(dest, dest, src);
     }
 

-    void xor32(Imm32 imm, RegisterID dest)
+    void xor32(TrustedImm32 imm, RegisterID dest)
+    {
+        if (imm.m_value == -1)
+            m_assembler.mvns_r(dest, dest);
+        else
+            m_assembler.eors_r(dest, dest, m_assembler.getImm(imm.m_value, ARMRegisters::S0));
+    }
+
+    void xor32(TrustedImm32 imm, RegisterID src, RegisterID dest)
+    {
+        if (imm.m_value == -1)
+            m_assembler.mvns_r(dest, src);
+        else    
+            m_assembler.eors_r(dest, src, m_assembler.getImm(imm.m_value, ARMRegisters::S0));
+    }
+
+    void countLeadingZeros32(RegisterID src, RegisterID dest)
+    {
+#if WTF_ARM_ARCH_AT_LEAST(5)
+        m_assembler.clz_r(dest, src);
+#else
+        UNUSED_PARAM(src);
+        UNUSED_PARAM(dest);
+        ASSERT_NOT_REACHED();
+#endif
+    }
+
+    void load8(ImplicitAddress address, RegisterID dest)
+    {
+        m_assembler.dataTransfer32(true, dest, address.base, address.offset, true);
+    }
+
+    void load8(BaseIndex address, RegisterID dest)

     {
     {

-        m_assembler.eors_r(dest, dest, m_assembler.getImm(imm.m_value, ARMRegisters::S0));
+        m_assembler.baseIndexTransfer32(true, dest, address.base, address.index, static_cast<int>(address.scale), address.offset, true);

     }
 
     void load32(ImplicitAddress address, RegisterID dest)
     }
 
     void load32(ImplicitAddress address, RegisterID dest)


@@ -233,6 +322,11 @@ public:
     }
 #endif
 
     }
 #endif
 

+    void load16Unaligned(BaseIndex address, RegisterID dest)
+    {
+        load16(address, dest);
+    }
+

     DataLabel32 load32WithAddressOffsetPatch(Address address, RegisterID dest)
     {
         DataLabel32 dataLabel(this);
     DataLabel32 load32WithAddressOffsetPatch(Address address, RegisterID dest)
     {
         DataLabel32 dataLabel(this);


@@ -240,21 +334,26 @@ public:
         m_assembler.dtr_ur(true, dest, address.base, ARMRegisters::S0);
         return dataLabel;
     }
         m_assembler.dtr_ur(true, dest, address.base, ARMRegisters::S0);
         return dataLabel;
     }

-
-    Label loadPtrWithPatchToLEA(Address address, RegisterID dest)
+    
+    DataLabelCompact load32WithCompactAddressOffsetPatch(Address address, RegisterID dest)

     {
     {

-        Label label(this);
-        load32(address, dest);
-        return label;
+        DataLabelCompact dataLabel(this);
+        load32WithAddressOffsetPatch(address, dest);
+        return dataLabel;

     }
 
     void load16(BaseIndex address, RegisterID dest)
     {
     }
 
     void load16(BaseIndex address, RegisterID dest)
     {

-        m_assembler.add_r(ARMRegisters::S0, address.base, m_assembler.lsl(address.index, address.scale));
-        if (address.offset>=0)
-            m_assembler.ldrh_u(dest, ARMRegisters::S0, ARMAssembler::getOp2Byte(address.offset));
+        m_assembler.add_r(ARMRegisters::S1, address.base, m_assembler.lsl(address.index, address.scale));
+        load16(Address(ARMRegisters::S1, address.offset), dest);
+    }
+    
+    void load16(ImplicitAddress address, RegisterID dest)
+    {
+        if (address.offset >= 0)
+            m_assembler.ldrh_u(dest, address.base, m_assembler.getOffsetForHalfwordDataTransfer(address.offset, ARMRegisters::S0));

         else
         else

-            m_assembler.ldrh_d(dest, ARMRegisters::S0, ARMAssembler::getOp2Byte(-address.offset));
+            m_assembler.ldrh_d(dest, address.base, m_assembler.getOffsetForHalfwordDataTransfer(-address.offset, ARMRegisters::S0));

     }
 
     DataLabel32 store32WithAddressOffsetPatch(RegisterID src, Address address)
     }
 
     DataLabel32 store32WithAddressOffsetPatch(RegisterID src, Address address)


@@ -275,7 +374,7 @@ public:
         m_assembler.baseIndexTransfer32(false, src, address.base, address.index, static_cast<int>(address.scale), address.offset);
     }
 
         m_assembler.baseIndexTransfer32(false, src, address.base, address.index, static_cast<int>(address.scale), address.offset);
     }
 

-    void store32(Imm32 imm, ImplicitAddress address)
+    void store32(TrustedImm32 imm, ImplicitAddress address)

     {
         if (imm.m_isPointer)
             m_assembler.ldr_un_imm(ARMRegisters::S1, imm.m_value);
     {
         if (imm.m_isPointer)
             m_assembler.ldr_un_imm(ARMRegisters::S1, imm.m_value);


@@ -290,7 +389,7 @@ public:
         m_assembler.dtr_u(false, src, ARMRegisters::S0, 0);
     }
 
         m_assembler.dtr_u(false, src, ARMRegisters::S0, 0);
     }
 

-    void store32(Imm32 imm, void* address)
+    void store32(TrustedImm32 imm, void* address)

     {
         m_assembler.ldr_un_imm(ARMRegisters::S0, reinterpret_cast<ARMWord>(address));
         if (imm.m_isPointer)
     {
         m_assembler.ldr_un_imm(ARMRegisters::S0, reinterpret_cast<ARMWord>(address));
         if (imm.m_isPointer)


@@ -316,13 +415,13 @@ public:
         push(ARMRegisters::S1);
     }
 
         push(ARMRegisters::S1);
     }
 

-    void push(Imm32 imm)
+    void push(TrustedImm32 imm)

     {
         move(imm, ARMRegisters::S0);
         push(ARMRegisters::S0);
     }
 
     {
         move(imm, ARMRegisters::S0);
         push(ARMRegisters::S0);
     }
 

-    void move(Imm32 imm, RegisterID dest)
+    void move(TrustedImm32 imm, RegisterID dest)

     {
         if (imm.m_isPointer)
             m_assembler.ldr_un_imm(dest, imm.m_value);
     {
         if (imm.m_isPointer)
             m_assembler.ldr_un_imm(dest, imm.m_value);


@@ -335,9 +434,9 @@ public:
         m_assembler.mov_r(dest, src);
     }
 
         m_assembler.mov_r(dest, src);
     }
 

-    void move(ImmPtr imm, RegisterID dest)
+    void move(TrustedImmPtr imm, RegisterID dest)

     {
     {

-        move(Imm32(imm), dest);
+        move(TrustedImm32(imm), dest);

     }
 
     void swap(RegisterID reg1, RegisterID reg2)
     }
 
     void swap(RegisterID reg1, RegisterID reg2)


@@ -359,77 +458,84 @@ public:
             move(src, dest);
     }
 
             move(src, dest);
     }
 

-    Jump branch32(Condition cond, RegisterID left, RegisterID right, int useConstantPool = 0)
+    Jump branch8(RelationalCondition cond, Address left, TrustedImm32 right)
+    {
+        load8(left, ARMRegisters::S1);
+        return branch32(cond, ARMRegisters::S1, right);
+    }
+
+    Jump branch8(RelationalCondition cond, BaseIndex left, TrustedImm32 right)
+    {
+        ASSERT(!(right.m_value & 0xFFFFFF00));
+        load8(left, ARMRegisters::S1);
+        return branch32(cond, ARMRegisters::S1, right);
+    }
+
+    Jump branch32(RelationalCondition cond, RegisterID left, RegisterID right, int useConstantPool = 0)

     {
         m_assembler.cmp_r(left, right);
         return Jump(m_assembler.jmp(ARMCondition(cond), useConstantPool));
     }
 
     {
         m_assembler.cmp_r(left, right);
         return Jump(m_assembler.jmp(ARMCondition(cond), useConstantPool));
     }
 

-    Jump branch32(Condition cond, RegisterID left, Imm32 right, int useConstantPool = 0)
+    Jump branch32(RelationalCondition cond, RegisterID left, TrustedImm32 right, int useConstantPool = 0)

     {
         if (right.m_isPointer) {
             m_assembler.ldr_un_imm(ARMRegisters::S0, right.m_value);
             m_assembler.cmp_r(left, ARMRegisters::S0);
     {
         if (right.m_isPointer) {
             m_assembler.ldr_un_imm(ARMRegisters::S0, right.m_value);
             m_assembler.cmp_r(left, ARMRegisters::S0);

-        } else
-            m_assembler.cmp_r(left, m_assembler.getImm(right.m_value, ARMRegisters::S0));
+        } else {
+            ARMWord tmp = (right.m_value == 0x80000000) ? ARMAssembler::INVALID_IMM : m_assembler.getOp2(-right.m_value);
+            if (tmp != ARMAssembler::INVALID_IMM)
+                m_assembler.cmn_r(left, tmp);
+            else
+                m_assembler.cmp_r(left, m_assembler.getImm(right.m_value, ARMRegisters::S0));
+        }

         return Jump(m_assembler.jmp(ARMCondition(cond), useConstantPool));
     }
 
         return Jump(m_assembler.jmp(ARMCondition(cond), useConstantPool));
     }
 

-    Jump branch32(Condition cond, RegisterID left, Address right)
+    Jump branch32(RelationalCondition cond, RegisterID left, Address right)

     {
         load32(right, ARMRegisters::S1);
         return branch32(cond, left, ARMRegisters::S1);
     }
 
     {
         load32(right, ARMRegisters::S1);
         return branch32(cond, left, ARMRegisters::S1);
     }
 

-    Jump branch32(Condition cond, Address left, RegisterID right)
+    Jump branch32(RelationalCondition cond, Address left, RegisterID right)

     {
         load32(left, ARMRegisters::S1);
         return branch32(cond, ARMRegisters::S1, right);
     }
 
     {
         load32(left, ARMRegisters::S1);
         return branch32(cond, ARMRegisters::S1, right);
     }
 

-    Jump branch32(Condition cond, Address left, Imm32 right)
+    Jump branch32(RelationalCondition cond, Address left, TrustedImm32 right)

     {
         load32(left, ARMRegisters::S1);
         return branch32(cond, ARMRegisters::S1, right);
     }
 
     {
         load32(left, ARMRegisters::S1);
         return branch32(cond, ARMRegisters::S1, right);
     }
 

-    Jump branch32(Condition cond, BaseIndex left, Imm32 right)
+    Jump branch32(RelationalCondition cond, BaseIndex left, TrustedImm32 right)

     {
         load32(left, ARMRegisters::S1);
         return branch32(cond, ARMRegisters::S1, right);
     }
 
     {
         load32(left, ARMRegisters::S1);
         return branch32(cond, ARMRegisters::S1, right);
     }
 

-    Jump branch32WithUnalignedHalfWords(Condition cond, BaseIndex left, Imm32 right)
+    Jump branch32WithUnalignedHalfWords(RelationalCondition cond, BaseIndex left, TrustedImm32 right)

     {
         load32WithUnalignedHalfWords(left, ARMRegisters::S1);
         return branch32(cond, ARMRegisters::S1, right);
     }
 
     {
         load32WithUnalignedHalfWords(left, ARMRegisters::S1);
         return branch32(cond, ARMRegisters::S1, right);
     }
 

-    Jump branch16(Condition cond, BaseIndex left, RegisterID right)
-    {
-        UNUSED_PARAM(cond);
-        UNUSED_PARAM(left);
-        UNUSED_PARAM(right);
-        ASSERT_NOT_REACHED();
-        return jump();
-    }
-
-    Jump branch16(Condition cond, BaseIndex left, Imm32 right)
+    Jump branchTest8(ResultCondition cond, Address address, TrustedImm32 mask = TrustedImm32(-1))

     {
     {

-        load16(left, ARMRegisters::S0);
-        move(right, ARMRegisters::S1);
-        m_assembler.cmp_r(ARMRegisters::S0, ARMRegisters::S1);
-        return m_assembler.jmp(ARMCondition(cond));
+        load8(address, ARMRegisters::S1);
+        return branchTest32(cond, ARMRegisters::S1, mask);

     }
 
     }
 

-    Jump branchTest32(Condition cond, RegisterID reg, RegisterID mask)
+    Jump branchTest32(ResultCondition cond, RegisterID reg, RegisterID mask)

     {
         ASSERT((cond == Zero) || (cond == NonZero));
         m_assembler.tst_r(reg, mask);
         return Jump(m_assembler.jmp(ARMCondition(cond)));
     }
 
     {
         ASSERT((cond == Zero) || (cond == NonZero));
         m_assembler.tst_r(reg, mask);
         return Jump(m_assembler.jmp(ARMCondition(cond)));
     }
 

-    Jump branchTest32(Condition cond, RegisterID reg, Imm32 mask = Imm32(-1))
+    Jump branchTest32(ResultCondition cond, RegisterID reg, TrustedImm32 mask = TrustedImm32(-1))

     {
         ASSERT((cond == Zero) || (cond == NonZero));
         ARMWord w = m_assembler.getImm(mask.m_value, ARMRegisters::S0, true);
     {
         ASSERT((cond == Zero) || (cond == NonZero));
         ARMWord w = m_assembler.getImm(mask.m_value, ARMRegisters::S0, true);


@@ -440,13 +546,13 @@ public:
         return Jump(m_assembler.jmp(ARMCondition(cond)));
     }
 
         return Jump(m_assembler.jmp(ARMCondition(cond)));
     }
 

-    Jump branchTest32(Condition cond, Address address, Imm32 mask = Imm32(-1))
+    Jump branchTest32(ResultCondition cond, Address address, TrustedImm32 mask = TrustedImm32(-1))

     {
         load32(address, ARMRegisters::S1);
         return branchTest32(cond, ARMRegisters::S1, mask);
     }
 
     {
         load32(address, ARMRegisters::S1);
         return branchTest32(cond, ARMRegisters::S1, mask);
     }
 

-    Jump branchTest32(Condition cond, BaseIndex address, Imm32 mask = Imm32(-1))
+    Jump branchTest32(ResultCondition cond, BaseIndex address, TrustedImm32 mask = TrustedImm32(-1))

     {
         load32(address, ARMRegisters::S1);
         return branchTest32(cond, ARMRegisters::S1, mask);
     {
         load32(address, ARMRegisters::S1);
         return branchTest32(cond, ARMRegisters::S1, mask);


@@ -459,7 +565,7 @@ public:
 
     void jump(RegisterID target)
     {
 
     void jump(RegisterID target)
     {

-        move(target, ARMRegisters::pc);
+        m_assembler.bx(target);

     }
 
     void jump(Address address)
     }
 
     void jump(Address address)


@@ -467,20 +573,27 @@ public:
         load32(address, ARMRegisters::pc);
     }
 
         load32(address, ARMRegisters::pc);
     }
 

-    Jump branchAdd32(Condition cond, RegisterID src, RegisterID dest)
+    Jump branchAdd32(ResultCondition cond, RegisterID src, RegisterID dest)

     {
         ASSERT((cond == Overflow) || (cond == Signed) || (cond == Zero) || (cond == NonZero));
         add32(src, dest);
         return Jump(m_assembler.jmp(ARMCondition(cond)));
     }
 
     {
         ASSERT((cond == Overflow) || (cond == Signed) || (cond == Zero) || (cond == NonZero));
         add32(src, dest);
         return Jump(m_assembler.jmp(ARMCondition(cond)));
     }
 

-    Jump branchAdd32(Condition cond, Imm32 imm, RegisterID dest)
+    Jump branchAdd32(ResultCondition cond, TrustedImm32 imm, RegisterID dest)

     {
         ASSERT((cond == Overflow) || (cond == Signed) || (cond == Zero) || (cond == NonZero));
         add32(imm, dest);
         return Jump(m_assembler.jmp(ARMCondition(cond)));
     }
 
     {
         ASSERT((cond == Overflow) || (cond == Signed) || (cond == Zero) || (cond == NonZero));
         add32(imm, dest);
         return Jump(m_assembler.jmp(ARMCondition(cond)));
     }
 

+    Jump branchAdd32(ResultCondition cond, RegisterID src, TrustedImm32 imm, RegisterID dest)
+    {
+        ASSERT((cond == Overflow) || (cond == Signed) || (cond == Zero) || (cond == NonZero));
+        add32(src, imm, dest);
+        return Jump(m_assembler.jmp(ARMCondition(cond)));
+    }
+

     void mull32(RegisterID src1, RegisterID src2, RegisterID dest)
     {
         if (src1 == dest) {
     void mull32(RegisterID src1, RegisterID src2, RegisterID dest)
     {
         if (src1 == dest) {


@@ -491,7 +604,7 @@ public:
         m_assembler.cmp_r(ARMRegisters::S1, m_assembler.asr(dest, 31));
     }
 
         m_assembler.cmp_r(ARMRegisters::S1, m_assembler.asr(dest, 31));
     }
 

-    Jump branchMul32(Condition cond, RegisterID src, RegisterID dest)
+    Jump branchMul32(ResultCondition cond, RegisterID src, RegisterID dest)

     {
         ASSERT((cond == Overflow) || (cond == Signed) || (cond == Zero) || (cond == NonZero));
         if (cond == Overflow) {
     {
         ASSERT((cond == Overflow) || (cond == Signed) || (cond == Zero) || (cond == NonZero));
         if (cond == Overflow) {


@@ -503,7 +616,7 @@ public:
         return Jump(m_assembler.jmp(ARMCondition(cond)));
     }
 
         return Jump(m_assembler.jmp(ARMCondition(cond)));
     }
 

-    Jump branchMul32(Condition cond, Imm32 imm, RegisterID src, RegisterID dest)
+    Jump branchMul32(ResultCondition cond, TrustedImm32 imm, RegisterID src, RegisterID dest)

     {
         ASSERT((cond == Overflow) || (cond == Signed) || (cond == Zero) || (cond == NonZero));
         if (cond == Overflow) {
     {
         ASSERT((cond == Overflow) || (cond == Signed) || (cond == Zero) || (cond == NonZero));
         if (cond == Overflow) {


@@ -516,21 +629,42 @@ public:
         return Jump(m_assembler.jmp(ARMCondition(cond)));
     }
 
         return Jump(m_assembler.jmp(ARMCondition(cond)));
     }
 

-    Jump branchSub32(Condition cond, RegisterID src, RegisterID dest)
+    Jump branchSub32(ResultCondition cond, RegisterID src, RegisterID dest)

     {
         ASSERT((cond == Overflow) || (cond == Signed) || (cond == Zero) || (cond == NonZero));
         sub32(src, dest);
         return Jump(m_assembler.jmp(ARMCondition(cond)));
     }
 
     {
         ASSERT((cond == Overflow) || (cond == Signed) || (cond == Zero) || (cond == NonZero));
         sub32(src, dest);
         return Jump(m_assembler.jmp(ARMCondition(cond)));
     }
 

-    Jump branchSub32(Condition cond, Imm32 imm, RegisterID dest)
+    Jump branchSub32(ResultCondition cond, TrustedImm32 imm, RegisterID dest)

     {
         ASSERT((cond == Overflow) || (cond == Signed) || (cond == Zero) || (cond == NonZero));
         sub32(imm, dest);
         return Jump(m_assembler.jmp(ARMCondition(cond)));
     }
 
     {
         ASSERT((cond == Overflow) || (cond == Signed) || (cond == Zero) || (cond == NonZero));
         sub32(imm, dest);
         return Jump(m_assembler.jmp(ARMCondition(cond)));
     }
 

-    Jump branchOr32(Condition cond, RegisterID src, RegisterID dest)
+    Jump branchSub32(ResultCondition cond, RegisterID src, TrustedImm32 imm, RegisterID dest)
+    {
+        ASSERT((cond == Overflow) || (cond == Signed) || (cond == Zero) || (cond == NonZero));
+        sub32(src, imm, dest);
+        return Jump(m_assembler.jmp(ARMCondition(cond)));
+    }
+
+    Jump branchSub32(ResultCondition cond, RegisterID op1, RegisterID op2, RegisterID dest)
+    {
+        ASSERT((cond == Overflow) || (cond == Signed) || (cond == Zero) || (cond == NonZero));
+        m_assembler.subs_r(dest, op1, op2);
+        return Jump(m_assembler.jmp(ARMCondition(cond)));
+    }
+
+    Jump branchNeg32(ResultCondition cond, RegisterID srcDest)
+    {
+        ASSERT((cond == Overflow) || (cond == Signed) || (cond == Zero) || (cond == NonZero));
+        neg32(srcDest);
+        return Jump(m_assembler.jmp(ARMCondition(cond)));
+    }
+
+    Jump branchOr32(ResultCondition cond, RegisterID src, RegisterID dest)

     {
         ASSERT((cond == Signed) || (cond == Zero) || (cond == NonZero));
         or32(src, dest);
     {
         ASSERT((cond == Signed) || (cond == Zero) || (cond == NonZero));
         or32(src, dest);


@@ -544,16 +678,19 @@ public:
 
     Call nearCall()
     {
 
     Call nearCall()
     {

+#if WTF_ARM_ARCH_AT_LEAST(5)
+        ensureSpace(2 * sizeof(ARMWord), sizeof(ARMWord));
+        m_assembler.loadBranchTarget(ARMRegisters::S1, ARMAssembler::AL, true);
+        return Call(m_assembler.blx(ARMRegisters::S1), Call::LinkableNear);
+#else

         prepareCall();
         return Call(m_assembler.jmp(ARMAssembler::AL, true), Call::LinkableNear);
         prepareCall();
         return Call(m_assembler.jmp(ARMAssembler::AL, true), Call::LinkableNear);

+#endif

     }
 
     Call call(RegisterID target)
     {
     }
 
     Call call(RegisterID target)
     {

-        prepareCall();
-        move(ARMRegisters::pc, target);
-        JmpSrc jmpSrc;
-        return Call(jmpSrc, Call::None);
+        return Call(m_assembler.blx(target), Call::None);

     }
 
     void call(Address address)
     }
 
     void call(Address address)


@@ -563,65 +700,57 @@ public:
 
     void ret()
     {
 
     void ret()
     {

-        m_assembler.mov_r(ARMRegisters::pc, linkRegister);
+        m_assembler.bx(linkRegister);

     }
 
     }
 

-    void set32(Condition cond, RegisterID left, RegisterID right, RegisterID dest)
+    void compare32(RelationalCondition cond, RegisterID left, RegisterID right, RegisterID dest)

     {
         m_assembler.cmp_r(left, right);
         m_assembler.mov_r(dest, ARMAssembler::getOp2(0));
         m_assembler.mov_r(dest, ARMAssembler::getOp2(1), ARMCondition(cond));
     }
 
     {
         m_assembler.cmp_r(left, right);
         m_assembler.mov_r(dest, ARMAssembler::getOp2(0));
         m_assembler.mov_r(dest, ARMAssembler::getOp2(1), ARMCondition(cond));
     }
 

-    void set32(Condition cond, RegisterID left, Imm32 right, RegisterID dest)
+    void compare32(RelationalCondition cond, RegisterID left, TrustedImm32 right, RegisterID dest)

     {
         m_assembler.cmp_r(left, m_assembler.getImm(right.m_value, ARMRegisters::S0));
         m_assembler.mov_r(dest, ARMAssembler::getOp2(0));
         m_assembler.mov_r(dest, ARMAssembler::getOp2(1), ARMCondition(cond));
     }
 
     {
         m_assembler.cmp_r(left, m_assembler.getImm(right.m_value, ARMRegisters::S0));
         m_assembler.mov_r(dest, ARMAssembler::getOp2(0));
         m_assembler.mov_r(dest, ARMAssembler::getOp2(1), ARMCondition(cond));
     }
 

-    void set8(Condition cond, RegisterID left, RegisterID right, RegisterID dest)
+    void compare8(RelationalCondition cond, Address left, TrustedImm32 right, RegisterID dest)

     {
     {

-        // ARM doesn't have byte registers
-        set32(cond, left, right, dest);
+        load8(left, ARMRegisters::S1);
+        compare32(cond, ARMRegisters::S1, right, dest);

     }
 
     }
 

-    void set8(Condition cond, Address left, RegisterID right, RegisterID dest)
+    void test32(ResultCondition cond, RegisterID reg, TrustedImm32 mask, RegisterID dest)

     {
     {

-        // ARM doesn't have byte registers
-        load32(left, ARMRegisters::S1);
-        set32(cond, ARMRegisters::S1, right, dest);
-    }
-
-    void set8(Condition cond, RegisterID left, Imm32 right, RegisterID dest)
-    {
-        // ARM doesn't have byte registers
-        set32(cond, left, right, dest);
-    }
-
-    void setTest32(Condition cond, Address address, Imm32 mask, RegisterID dest)
-    {
-        load32(address, ARMRegisters::S1);

         if (mask.m_value == -1)
         if (mask.m_value == -1)

-            m_assembler.cmp_r(0, ARMRegisters::S1);
+            m_assembler.cmp_r(0, reg);

         else
         else

-            m_assembler.tst_r(ARMRegisters::S1, m_assembler.getImm(mask.m_value, ARMRegisters::S0));
+            m_assembler.tst_r(reg, m_assembler.getImm(mask.m_value, ARMRegisters::S0));

         m_assembler.mov_r(dest, ARMAssembler::getOp2(0));
         m_assembler.mov_r(dest, ARMAssembler::getOp2(1), ARMCondition(cond));
     }
 
         m_assembler.mov_r(dest, ARMAssembler::getOp2(0));
         m_assembler.mov_r(dest, ARMAssembler::getOp2(1), ARMCondition(cond));
     }
 

-    void setTest8(Condition cond, Address address, Imm32 mask, RegisterID dest)
+    void test32(ResultCondition cond, Address address, TrustedImm32 mask, RegisterID dest)
+    {
+        load32(address, ARMRegisters::S1);
+        test32(cond, ARMRegisters::S1, mask, dest);
+    }
+
+    void test8(ResultCondition cond, Address address, TrustedImm32 mask, RegisterID dest)

     {
     {

-        // ARM doesn't have byte registers
-        setTest32(cond, address, mask, dest);
+        load8(address, ARMRegisters::S1);
+        test32(cond, ARMRegisters::S1, mask, dest);

     }
 
     }
 

-    void add32(Imm32 imm, RegisterID src, RegisterID dest)
+    void add32(TrustedImm32 imm, RegisterID src, RegisterID dest)

     {
         m_assembler.add_r(dest, src, m_assembler.getImm(imm.m_value, ARMRegisters::S0));
     }
 
     {
         m_assembler.add_r(dest, src, m_assembler.getImm(imm.m_value, ARMRegisters::S0));
     }
 

-    void add32(Imm32 imm, AbsoluteAddress address)
+    void add32(TrustedImm32 imm, AbsoluteAddress address)

     {
         m_assembler.ldr_un_imm(ARMRegisters::S1, reinterpret_cast<ARMWord>(address.m_ptr));
         m_assembler.dtr_u(true, ARMRegisters::S1, ARMRegisters::S1, 0);
     {
         m_assembler.ldr_un_imm(ARMRegisters::S1, reinterpret_cast<ARMWord>(address.m_ptr));
         m_assembler.dtr_u(true, ARMRegisters::S1, ARMRegisters::S1, 0);


@@ -630,7 +759,7 @@ public:
         m_assembler.dtr_u(false, ARMRegisters::S1, ARMRegisters::S0, 0);
     }
 
         m_assembler.dtr_u(false, ARMRegisters::S1, ARMRegisters::S0, 0);
     }
 

-    void sub32(Imm32 imm, AbsoluteAddress address)
+    void sub32(TrustedImm32 imm, AbsoluteAddress address)

     {
         m_assembler.ldr_un_imm(ARMRegisters::S1, reinterpret_cast<ARMWord>(address.m_ptr));
         m_assembler.dtr_u(true, ARMRegisters::S1, ARMRegisters::S1, 0);
     {
         m_assembler.ldr_un_imm(ARMRegisters::S1, reinterpret_cast<ARMWord>(address.m_ptr));
         m_assembler.dtr_u(true, ARMRegisters::S1, ARMRegisters::S1, 0);


@@ -639,28 +768,43 @@ public:
         m_assembler.dtr_u(false, ARMRegisters::S1, ARMRegisters::S0, 0);
     }
 
         m_assembler.dtr_u(false, ARMRegisters::S1, ARMRegisters::S0, 0);
     }
 

-    void load32(void* address, RegisterID dest)
+    void load32(const void* address, RegisterID dest)

     {
         m_assembler.ldr_un_imm(ARMRegisters::S0, reinterpret_cast<ARMWord>(address));
         m_assembler.dtr_u(true, dest, ARMRegisters::S0, 0);
     }
 
     {
         m_assembler.ldr_un_imm(ARMRegisters::S0, reinterpret_cast<ARMWord>(address));
         m_assembler.dtr_u(true, dest, ARMRegisters::S0, 0);
     }
 

-    Jump branch32(Condition cond, AbsoluteAddress left, RegisterID right)
+    Jump branch32(RelationalCondition cond, AbsoluteAddress left, RegisterID right)

     {
         load32(left.m_ptr, ARMRegisters::S1);
         return branch32(cond, ARMRegisters::S1, right);
     }
 
     {
         load32(left.m_ptr, ARMRegisters::S1);
         return branch32(cond, ARMRegisters::S1, right);
     }
 

-    Jump branch32(Condition cond, AbsoluteAddress left, Imm32 right)
+    Jump branch32(RelationalCondition cond, AbsoluteAddress left, TrustedImm32 right)

     {
         load32(left.m_ptr, ARMRegisters::S1);
         return branch32(cond, ARMRegisters::S1, right);
     }
 
     {
         load32(left.m_ptr, ARMRegisters::S1);
         return branch32(cond, ARMRegisters::S1, right);
     }
 

+    void relativeTableJump(RegisterID index, int scale)
+    {
+        ASSERT(scale >= 0 && scale <= 31);
+        m_assembler.add_r(ARMRegisters::pc, ARMRegisters::pc, m_assembler.lsl(index, scale));
+
+        // NOP the default prefetching
+        m_assembler.mov_r(ARMRegisters::r0, ARMRegisters::r0);
+    }
+

     Call call()
     {
     Call call()
     {

+#if WTF_ARM_ARCH_AT_LEAST(5)
+        ensureSpace(2 * sizeof(ARMWord), sizeof(ARMWord));
+        m_assembler.loadBranchTarget(ARMRegisters::S1, ARMAssembler::AL, true);
+        return Call(m_assembler.blx(ARMRegisters::S1), Call::Linkable);
+#else

         prepareCall();
         return Call(m_assembler.jmp(ARMAssembler::AL, true), Call::Linkable);
         prepareCall();
         return Call(m_assembler.jmp(ARMAssembler::AL, true), Call::Linkable);

+#endif

     }
 
     Call tailRecursiveCall()
     }
 
     Call tailRecursiveCall()


@@ -673,21 +817,21 @@ public:
         return Call::fromTailJump(oldJump);
     }
 
         return Call::fromTailJump(oldJump);
     }
 

-    DataLabelPtr moveWithPatch(ImmPtr initialValue, RegisterID dest)
+    DataLabelPtr moveWithPatch(TrustedImmPtr initialValue, RegisterID dest)

     {
         DataLabelPtr dataLabel(this);
         m_assembler.ldr_un_imm(dest, reinterpret_cast<ARMWord>(initialValue.m_value));
         return dataLabel;
     }
 
     {
         DataLabelPtr dataLabel(this);
         m_assembler.ldr_un_imm(dest, reinterpret_cast<ARMWord>(initialValue.m_value));
         return dataLabel;
     }
 

-    Jump branchPtrWithPatch(Condition cond, RegisterID left, DataLabelPtr& dataLabel, ImmPtr initialRightValue = ImmPtr(0))
+    Jump branchPtrWithPatch(RelationalCondition cond, RegisterID left, DataLabelPtr& dataLabel, TrustedImmPtr initialRightValue = TrustedImmPtr(0))

     {
         dataLabel = moveWithPatch(initialRightValue, ARMRegisters::S1);
         Jump jump = branch32(cond, left, ARMRegisters::S1, true);
         return jump;
     }
 
     {
         dataLabel = moveWithPatch(initialRightValue, ARMRegisters::S1);
         Jump jump = branch32(cond, left, ARMRegisters::S1, true);
         return jump;
     }
 

-    Jump branchPtrWithPatch(Condition cond, Address left, DataLabelPtr& dataLabel, ImmPtr initialRightValue = ImmPtr(0))
+    Jump branchPtrWithPatch(RelationalCondition cond, Address left, DataLabelPtr& dataLabel, TrustedImmPtr initialRightValue = TrustedImmPtr(0))

     {
         load32(left, ARMRegisters::S1);
         dataLabel = moveWithPatch(initialRightValue, ARMRegisters::S0);
     {
         load32(left, ARMRegisters::S1);
         dataLabel = moveWithPatch(initialRightValue, ARMRegisters::S0);


@@ -695,7 +839,7 @@ public:
         return jump;
     }
 
         return jump;
     }
 

-    DataLabelPtr storePtrWithPatch(ImmPtr initialValue, ImplicitAddress address)
+    DataLabelPtr storePtrWithPatch(TrustedImmPtr initialValue, ImplicitAddress address)

     {
         DataLabelPtr dataLabel = moveWithPatch(initialValue, ARMRegisters::S1);
         store32(ARMRegisters::S1, address);
     {
         DataLabelPtr dataLabel = moveWithPatch(initialValue, ARMRegisters::S1);
         store32(ARMRegisters::S1, address);


@@ -704,26 +848,32 @@ public:
 
     DataLabelPtr storePtrWithPatch(ImplicitAddress address)
     {
 
     DataLabelPtr storePtrWithPatch(ImplicitAddress address)
     {

-        return storePtrWithPatch(ImmPtr(0), address);
+        return storePtrWithPatch(TrustedImmPtr(0), address);

     }
 
     // Floating point operators
     }
 
     // Floating point operators

-    bool supportsFloatingPoint() const
+    static bool supportsFloatingPoint()

     {
         return s_isVFPPresent;
     }
 
     {
         return s_isVFPPresent;
     }
 

-    bool supportsFloatingPointTruncate() const
+    static bool supportsFloatingPointTruncate()

     {
         return false;
     }
 
     {
         return false;
     }
 

+    static bool supportsFloatingPointSqrt()
+    {
+        return s_isVFPPresent;
+    }
+    static bool supportsFloatingPointAbs() { return false; }
+

     void loadDouble(ImplicitAddress address, FPRegisterID dest)
     {
         m_assembler.doubleTransfer(true, dest, address.base, address.offset);
     }
 
     void loadDouble(ImplicitAddress address, FPRegisterID dest)
     {
         m_assembler.doubleTransfer(true, dest, address.base, address.offset);
     }
 

-    void loadDouble(void* address, FPRegisterID dest)
+    void loadDouble(const void* address, FPRegisterID dest)

     {
         m_assembler.ldr_un_imm(ARMRegisters::S0, (ARMWord)address);
         m_assembler.fdtr_u(true, dest, ARMRegisters::S0, 0);
     {
         m_assembler.ldr_un_imm(ARMRegisters::S0, (ARMWord)address);
         m_assembler.fdtr_u(true, dest, ARMRegisters::S0, 0);


@@ -736,7 +886,7 @@ public:
 
     void addDouble(FPRegisterID src, FPRegisterID dest)
     {
 
     void addDouble(FPRegisterID src, FPRegisterID dest)
     {

-        m_assembler.faddd_r(dest, dest, src);
+        m_assembler.vadd_f64_r(dest, dest, src);

     }
 
     void addDouble(Address src, FPRegisterID dest)
     }
 
     void addDouble(Address src, FPRegisterID dest)


@@ -747,7 +897,7 @@ public:
 
     void divDouble(FPRegisterID src, FPRegisterID dest)
     {
 
     void divDouble(FPRegisterID src, FPRegisterID dest)
     {

-        m_assembler.fdivd_r(dest, dest, src);
+        m_assembler.vdiv_f64_r(dest, dest, src);

     }
 
     void divDouble(Address src, FPRegisterID dest)
     }
 
     void divDouble(Address src, FPRegisterID dest)


@@ -759,7 +909,7 @@ public:
 
     void subDouble(FPRegisterID src, FPRegisterID dest)
     {
 
     void subDouble(FPRegisterID src, FPRegisterID dest)
     {

-        m_assembler.fsubd_r(dest, dest, src);
+        m_assembler.vsub_f64_r(dest, dest, src);

     }
 
     void subDouble(Address src, FPRegisterID dest)
     }
 
     void subDouble(Address src, FPRegisterID dest)


@@ -770,7 +920,7 @@ public:
 
     void mulDouble(FPRegisterID src, FPRegisterID dest)
     {
 
     void mulDouble(FPRegisterID src, FPRegisterID dest)
     {

-        m_assembler.fmuld_r(dest, dest, src);
+        m_assembler.vmul_f64_r(dest, dest, src);

     }
 
     void mulDouble(Address src, FPRegisterID dest)
     }
 
     void mulDouble(Address src, FPRegisterID dest)


@@ -779,10 +929,20 @@ public:
         mulDouble(ARMRegisters::SD0, dest);
     }
 
         mulDouble(ARMRegisters::SD0, dest);
     }
 

+    void sqrtDouble(FPRegisterID src, FPRegisterID dest)
+    {
+        m_assembler.vsqrt_f64_r(dest, src);
+    }
+    
+    void absDouble(FPRegisterID, FPRegisterID)
+    {
+        ASSERT_NOT_REACHED();
+    }
+

     void convertInt32ToDouble(RegisterID src, FPRegisterID dest)
     {
     void convertInt32ToDouble(RegisterID src, FPRegisterID dest)
     {

-        m_assembler.fmsr_r(dest, src);
-        m_assembler.fsitod_r(dest, dest);
+        m_assembler.vmov_vfp_r(dest << 1, src);
+        m_assembler.vcvt_f64_s32_r(dest, dest << 1);

     }
 
     void convertInt32ToDouble(Address src, FPRegisterID dest)
     }
 
     void convertInt32ToDouble(Address src, FPRegisterID dest)


@@ -804,8 +964,8 @@ public:
 
     Jump branchDouble(DoubleCondition cond, FPRegisterID left, FPRegisterID right)
     {
 
     Jump branchDouble(DoubleCondition cond, FPRegisterID left, FPRegisterID right)
     {

-        m_assembler.fcmpd_r(left, right);
-        m_assembler.fmstat();
+        m_assembler.vcmp_f64_r(left, right);
+        m_assembler.vmrs_apsr();

         if (cond & DoubleConditionBitSpecial)
             m_assembler.cmp_r(ARMRegisters::S0, ARMRegisters::S0, ARMAssembler::VS);
         return Jump(m_assembler.jmp(static_cast<ARMAssembler::Condition>(cond & ~DoubleConditionMask)));
         if (cond & DoubleConditionBitSpecial)
             m_assembler.cmp_r(ARMRegisters::S0, ARMRegisters::S0, ARMAssembler::VS);
         return Jump(m_assembler.jmp(static_cast<ARMAssembler::Condition>(cond & ~DoubleConditionMask)));


@@ -829,25 +989,48 @@ public:
     // (specifically, in this case, 0).
     void branchConvertDoubleToInt32(FPRegisterID src, RegisterID dest, JumpList& failureCases, FPRegisterID fpTemp)
     {
     // (specifically, in this case, 0).
     void branchConvertDoubleToInt32(FPRegisterID src, RegisterID dest, JumpList& failureCases, FPRegisterID fpTemp)
     {

-        m_assembler.ftosid_r(ARMRegisters::SD0, src);
-        m_assembler.fmrs_r(dest, ARMRegisters::SD0);
+        m_assembler.vcvt_s32_f64_r(ARMRegisters::SD0 << 1, src);
+        m_assembler.vmov_arm_r(dest, ARMRegisters::SD0 << 1);

 
         // Convert the integer result back to float & compare to the original value - if not equal or unordered (NaN) then jump.
 
         // Convert the integer result back to float & compare to the original value - if not equal or unordered (NaN) then jump.

-        m_assembler.fsitod_r(ARMRegisters::SD0, ARMRegisters::SD0);
+        m_assembler.vcvt_f64_s32_r(ARMRegisters::SD0, ARMRegisters::SD0 << 1);

         failureCases.append(branchDouble(DoubleNotEqualOrUnordered, src, ARMRegisters::SD0));
 
         // If the result is zero, it might have been -0.0, and 0.0 equals to -0.0
         failureCases.append(branchTest32(Zero, dest));
     }
 
         failureCases.append(branchDouble(DoubleNotEqualOrUnordered, src, ARMRegisters::SD0));
 
         // If the result is zero, it might have been -0.0, and 0.0 equals to -0.0
         failureCases.append(branchTest32(Zero, dest));
     }
 

-    void zeroDouble(FPRegisterID srcDest)
+    Jump branchDoubleNonZero(FPRegisterID reg, FPRegisterID scratch)

     {
         m_assembler.mov_r(ARMRegisters::S0, ARMAssembler::getOp2(0));
     {
         m_assembler.mov_r(ARMRegisters::S0, ARMAssembler::getOp2(0));

-        convertInt32ToDouble(ARMRegisters::S0, srcDest);
+        convertInt32ToDouble(ARMRegisters::S0, scratch);
+        return branchDouble(DoubleNotEqual, reg, scratch);
+    }
+
+    Jump branchDoubleZeroOrNaN(FPRegisterID reg, FPRegisterID scratch)
+    {
+        m_assembler.mov_r(ARMRegisters::S0, ARMAssembler::getOp2(0));
+        convertInt32ToDouble(ARMRegisters::S0, scratch);
+        return branchDouble(DoubleEqualOrUnordered, reg, scratch);
+    }
+
+    void nop()
+    {
+        m_assembler.nop();
+    }
+
+    static FunctionPtr readCallTarget(CodeLocationCall call)
+    {
+        return FunctionPtr(reinterpret_cast<void(*)()>(ARMAssembler::readCallTarget(call.dataLocation())));

     }
 
 protected:
     }
 
 protected:

-    ARMAssembler::Condition ARMCondition(Condition cond)
+    ARMAssembler::Condition ARMCondition(RelationalCondition cond)
+    {
+        return static_cast<ARMAssembler::Condition>(cond);
+    }
+
+    ARMAssembler::Condition ARMCondition(ResultCondition cond)

     {
         return static_cast<ARMAssembler::Condition>(cond);
     }
     {
         return static_cast<ARMAssembler::Condition>(cond);
     }


@@ -864,44 +1047,56 @@ protected:
 
     void prepareCall()
     {
 
     void prepareCall()
     {

+#if WTF_ARM_ARCH_VERSION < 5

         ensureSpace(2 * sizeof(ARMWord), sizeof(ARMWord));
 
         m_assembler.mov_r(linkRegister, ARMRegisters::pc);
         ensureSpace(2 * sizeof(ARMWord), sizeof(ARMWord));
 
         m_assembler.mov_r(linkRegister, ARMRegisters::pc);

+#endif

     }
 
     void call32(RegisterID base, int32_t offset)
     {
     }
 
     void call32(RegisterID base, int32_t offset)
     {

+#if WTF_ARM_ARCH_AT_LEAST(5)
+        int targetReg = ARMRegisters::S1;
+#else
+        int targetReg = ARMRegisters::pc;
+#endif
+        int tmpReg = ARMRegisters::S1;
+

         if (base == ARMRegisters::sp)
             offset += 4;
 
         if (offset >= 0) {
             if (offset <= 0xfff) {
                 prepareCall();
         if (base == ARMRegisters::sp)
             offset += 4;
 
         if (offset >= 0) {
             if (offset <= 0xfff) {
                 prepareCall();

-                m_assembler.dtr_u(true, ARMRegisters::pc, base, offset);
+                m_assembler.dtr_u(true, targetReg, base, offset);

             } else if (offset <= 0xfffff) {
             } else if (offset <= 0xfffff) {

-                m_assembler.add_r(ARMRegisters::S0, base, ARMAssembler::OP2_IMM | (offset >> 12) | (10 << 8));
+                m_assembler.add_r(tmpReg, base, ARMAssembler::OP2_IMM | (offset >> 12) | (10 << 8));

                 prepareCall();
                 prepareCall();

-                m_assembler.dtr_u(true, ARMRegisters::pc, ARMRegisters::S0, offset & 0xfff);
+                m_assembler.dtr_u(true, targetReg, tmpReg, offset & 0xfff);

             } else {
             } else {

-                ARMWord reg = m_assembler.getImm(offset, ARMRegisters::S0);
+                m_assembler.moveImm(offset, tmpReg);

                 prepareCall();
                 prepareCall();

-                m_assembler.dtr_ur(true, ARMRegisters::pc, base, reg);
+                m_assembler.dtr_ur(true, targetReg, base, tmpReg);

             }
         } else  {
             offset = -offset;
             if (offset <= 0xfff) {
                 prepareCall();
             }
         } else  {
             offset = -offset;
             if (offset <= 0xfff) {
                 prepareCall();

-                m_assembler.dtr_d(true, ARMRegisters::pc, base, offset);
+                m_assembler.dtr_d(true, targetReg, base, offset);

             } else if (offset <= 0xfffff) {
             } else if (offset <= 0xfffff) {

-                m_assembler.sub_r(ARMRegisters::S0, base, ARMAssembler::OP2_IMM | (offset >> 12) | (10 << 8));
+                m_assembler.sub_r(tmpReg, base, ARMAssembler::OP2_IMM | (offset >> 12) | (10 << 8));

                 prepareCall();
                 prepareCall();

-                m_assembler.dtr_d(true, ARMRegisters::pc, ARMRegisters::S0, offset & 0xfff);
+                m_assembler.dtr_d(true, targetReg, tmpReg, offset & 0xfff);

             } else {
             } else {

-                ARMWord reg = m_assembler.getImm(offset, ARMRegisters::S0);
+                m_assembler.moveImm(offset, tmpReg);

                 prepareCall();
                 prepareCall();

-                m_assembler.dtr_dr(true, ARMRegisters::pc, base, reg);
+                m_assembler.dtr_dr(true, targetReg, base, tmpReg);

             }
         }
             }
         }

+#if WTF_ARM_ARCH_AT_LEAST(5)
+        m_assembler.blx(targetReg);
+#endif

     }
 
 private:
     }
 
 private:


@@ -910,7 +1105,7 @@ private:
 
     static void linkCall(void* code, Call call, FunctionPtr function)
     {
 
     static void linkCall(void* code, Call call, FunctionPtr function)
     {

-        ARMAssembler::linkCall(code, call.m_jmp, function.value());
+        ARMAssembler::linkCall(code, call.m_label, function.value());

     }
 
     static void repatchCall(CodeLocationCall call, CodeLocationLabel destination)
     }
 
     static void repatchCall(CodeLocationCall call, CodeLocationLabel destination)