JavaScriptCore-1097.13.tar.gz

[apple/javascriptcore.git] / assembler / MacroAssemblerX86.h

diff --git a/assembler/MacroAssemblerX86.h b/assembler/MacroAssemblerX86.h
index 6e962406d1545e100e728810d82c400ac7a0129d..088fe196b9f84a2c23375de9f8a43f3c2f77f098 100644 (file)
--- a/assembler/MacroAssemblerX86.h
+++ b/assembler/MacroAssemblerX86.h
@@ -26,9 +26,7 @@
 #ifndef MacroAssemblerX86_h
 #define MacroAssemblerX86_h
 
-#include <wtf/Platform.h>
-
-#if ENABLE(ASSEMBLER) && PLATFORM(X86)
+#if ENABLE(ASSEMBLER) && CPU(X86)
 
 #include "MacroAssemblerX86Common.h"
 
@@ -36,63 +34,69 @@ namespace JSC {
 
 class MacroAssemblerX86 : public MacroAssemblerX86Common {
 public:
-    MacroAssemblerX86()
-        : m_isSSE2Present(isSSE2Present())
-    {
-    }
-
     static const Scale ScalePtr = TimesFour;
 
     using MacroAssemblerX86Common::add32;
     using MacroAssemblerX86Common::and32;
+    using MacroAssemblerX86Common::branchAdd32;
+    using MacroAssemblerX86Common::branchSub32;
     using MacroAssemblerX86Common::sub32;
     using MacroAssemblerX86Common::or32;
     using MacroAssemblerX86Common::load32;
     using MacroAssemblerX86Common::store32;
     using MacroAssemblerX86Common::branch32;
     using MacroAssemblerX86Common::call;
+    using MacroAssemblerX86Common::jump;
+    using MacroAssemblerX86Common::addDouble;
     using MacroAssemblerX86Common::loadDouble;
+    using MacroAssemblerX86Common::storeDouble;
     using MacroAssemblerX86Common::convertInt32ToDouble;
 
-    void add32(Imm32 imm, RegisterID src, RegisterID dest)
+    void add32(TrustedImm32 imm, RegisterID src, RegisterID dest)
     {
         m_assembler.leal_mr(imm.m_value, src, dest);
     }
 
-    void add32(Imm32 imm, AbsoluteAddress address)
+    void add32(TrustedImm32 imm, AbsoluteAddress address)
     {
         m_assembler.addl_im(imm.m_value, address.m_ptr);
     }
     
-    void addWithCarry32(Imm32 imm, AbsoluteAddress address)
+    void add64(TrustedImm32 imm, AbsoluteAddress address)
     {
-        m_assembler.adcl_im(imm.m_value, address.m_ptr);
+        m_assembler.addl_im(imm.m_value, address.m_ptr);
+        m_assembler.adcl_im(imm.m_value >> 31, reinterpret_cast<const char*>(address.m_ptr) + sizeof(int32_t));
     }
-    
-    void and32(Imm32 imm, AbsoluteAddress address)
+
+    void and32(TrustedImm32 imm, AbsoluteAddress address)
     {
         m_assembler.andl_im(imm.m_value, address.m_ptr);
     }
     
-    void or32(Imm32 imm, AbsoluteAddress address)
+    void or32(TrustedImm32 imm, AbsoluteAddress address)
     {
         m_assembler.orl_im(imm.m_value, address.m_ptr);
     }
 
-    void sub32(Imm32 imm, AbsoluteAddress address)
+    void sub32(TrustedImm32 imm, AbsoluteAddress address)
     {
         m_assembler.subl_im(imm.m_value, address.m_ptr);
     }
 
-    void load32(void* address, RegisterID dest)
+    void load32(const void* address, RegisterID dest)
     {
         m_assembler.movl_mr(address, dest);
     }
 
-    void loadDouble(void* address, FPRegisterID dest)
+    void addDouble(AbsoluteAddress address, FPRegisterID dest)
+    {
+        m_assembler.addsd_mr(address.m_ptr, dest);
+    }
+
+    void storeDouble(FPRegisterID src, const void* address)
     {
         ASSERT(isSSE2Present());
-        m_assembler.movsd_mr(address, dest);
+        m_assembler.movsd_rm(src, address);
     }
 
     void convertInt32ToDouble(AbsoluteAddress src, FPRegisterID dest)
@@ -100,7 +104,7 @@ public:
         m_assembler.cvtsi2sd_mr(src.m_ptr, dest);
     }
 
-    void store32(Imm32 imm, void* address)
+    void store32(TrustedImm32 imm, void* address)
     {
         m_assembler.movl_i32m(imm.m_value, address);
     }
@@ -110,13 +114,25 @@ public:
         m_assembler.movl_rm(src, address);
     }
 
-    Jump branch32(Condition cond, AbsoluteAddress left, RegisterID right)
+    Jump branchAdd32(ResultCondition cond, TrustedImm32 imm, AbsoluteAddress dest)
+    {
+        m_assembler.addl_im(imm.m_value, dest.m_ptr);
+        return Jump(m_assembler.jCC(x86Condition(cond)));
+    }
+
+    Jump branchSub32(ResultCondition cond, TrustedImm32 imm, AbsoluteAddress dest)
+    {
+        m_assembler.subl_im(imm.m_value, dest.m_ptr);
+        return Jump(m_assembler.jCC(x86Condition(cond)));
+    }
+
+    Jump branch32(RelationalCondition cond, AbsoluteAddress left, RegisterID right)
     {
         m_assembler.cmpl_rm(right, left.m_ptr);
         return Jump(m_assembler.jCC(x86Condition(cond)));
     }
 
-    Jump branch32(Condition cond, AbsoluteAddress left, Imm32 right)
+    Jump branch32(RelationalCondition cond, AbsoluteAddress left, TrustedImm32 right)
     {
         m_assembler.cmpl_im(right.m_value, left.m_ptr);
         return Jump(m_assembler.jCC(x86Condition(cond)));
@@ -127,6 +143,12 @@ public:
         return Call(m_assembler.call(), Call::Linkable);
     }
 
+    // Address is a memory location containing the address to jump to
+    void jump(AbsoluteAddress address)
+    {
+        m_assembler.jmp_m(address.m_ptr);
+    }
+
     Call tailRecursiveCall()
     {
         return Call::fromTailJump(jump());
@@ -138,52 +160,51 @@ public:
     }
 
 
-    DataLabelPtr moveWithPatch(ImmPtr initialValue, RegisterID dest)
+    DataLabelPtr moveWithPatch(TrustedImmPtr initialValue, RegisterID dest)
     {
         m_assembler.movl_i32r(initialValue.asIntptr(), dest);
         return DataLabelPtr(this);
     }
 
-    Jump branchPtrWithPatch(Condition cond, RegisterID left, DataLabelPtr& dataLabel, ImmPtr initialRightValue = ImmPtr(0))
+    Jump branchPtrWithPatch(RelationalCondition cond, RegisterID left, DataLabelPtr& dataLabel, TrustedImmPtr initialRightValue = TrustedImmPtr(0))
     {
         m_assembler.cmpl_ir_force32(initialRightValue.asIntptr(), left);
         dataLabel = DataLabelPtr(this);
         return Jump(m_assembler.jCC(x86Condition(cond)));
     }
 
-    Jump branchPtrWithPatch(Condition cond, Address left, DataLabelPtr& dataLabel, ImmPtr initialRightValue = ImmPtr(0))
+    Jump branchPtrWithPatch(RelationalCondition cond, Address left, DataLabelPtr& dataLabel, TrustedImmPtr initialRightValue = TrustedImmPtr(0))
     {
         m_assembler.cmpl_im_force32(initialRightValue.asIntptr(), left.offset, left.base);
         dataLabel = DataLabelPtr(this);
         return Jump(m_assembler.jCC(x86Condition(cond)));
     }
 
-    DataLabelPtr storePtrWithPatch(ImmPtr initialValue, ImplicitAddress address)
+    DataLabelPtr storePtrWithPatch(TrustedImmPtr initialValue, ImplicitAddress address)
     {
         m_assembler.movl_i32m(initialValue.asIntptr(), address.offset, address.base);
         return DataLabelPtr(this);
     }
 
-    Label loadPtrWithPatchToLEA(Address address, RegisterID dest)
+    static bool supportsFloatingPoint() { return isSSE2Present(); }
+    // See comment on MacroAssemblerARMv7::supportsFloatingPointTruncate()
+    static bool supportsFloatingPointTruncate() { return isSSE2Present(); }
+    static bool supportsFloatingPointSqrt() { return isSSE2Present(); }
+    static bool supportsFloatingPointAbs() { return isSSE2Present(); }
+    
+    static FunctionPtr readCallTarget(CodeLocationCall call)
     {
-        Label label(this);
-        load32(address, dest);
-        return label;
+        intptr_t offset = reinterpret_cast<int32_t*>(call.dataLocation())[-1];
+        return FunctionPtr(reinterpret_cast<void*>(reinterpret_cast<uintptr_t>(call.dataLocation()) + offset));
     }
 
-    bool supportsFloatingPoint() const { return m_isSSE2Present; }
-    // See comment on MacroAssemblerARMv7::supportsFloatingPointTruncate()
-    bool supportsFloatingPointTruncate() const { return m_isSSE2Present; }
-
 private:
-    const bool m_isSSE2Present;
-
     friend class LinkBuffer;
     friend class RepatchBuffer;
 
     static void linkCall(void* code, Call call, FunctionPtr function)
     {
-        X86Assembler::linkCall(code, call.m_jmp, function.value());
+        X86Assembler::linkCall(code, call.m_label, function.value());
     }
 
     static void repatchCall(CodeLocationCall call, CodeLocationLabel destination)