src/x87/macro-assembler-x87.h - Issue 293743005: Introduce x87 port

Unified Diff: src/x87/macro-assembler-x87.h

Issue 293743005: Introduce x87 port (Closed) Base URL: git://github.com/v8/v8.git@master

Patch Set: rebase Created 6 years, 7 months ago

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Index: src/x87/macro-assembler-x87.h

diff --git a/src/ia32/macro-assembler-ia32.h b/src/x87/macro-assembler-x87.h

similarity index 95%

copy from src/ia32/macro-assembler-ia32.h

copy to src/x87/macro-assembler-x87.h

index 71e7427d2d46259b10060f1021aada1920ecba44..e5206da9f645d1218310b92b9d414bfca77b2812 100644

--- a/src/ia32/macro-assembler-ia32.h

+++ b/src/x87/macro-assembler-x87.h

@@ -2,8 +2,8 @@

// Use of this source code is governed by a BSD-style license that can be

// found in the LICENSE file.

-#ifndef V8_IA32_MACRO_ASSEMBLER_IA32_H_

-#define V8_IA32_MACRO_ASSEMBLER_IA32_H_

+#ifndef V8_X87_MACRO_ASSEMBLER_X87_H_

+#define V8_X87_MACRO_ASSEMBLER_X87_H_

#include "assembler.h"

#include "frames.h"

@@ -63,7 +63,6 @@ class MacroAssembler: public Assembler {

void RememberedSetHelper(Register object, // Used for debug code.

- SaveFPRegsMode save_fp,

RememberedSetFinalAction and_then);

void CheckPageFlag(Register object,

@@ -138,7 +137,6 @@ class MacroAssembler: public Assembler {

int offset,

- SaveFPRegsMode save_fp,

RememberedSetAction remembered_set_action = EMIT_REMEMBERED_SET,

SmiCheck smi_check = INLINE_SMI_CHECK);

@@ -149,14 +147,12 @@ class MacroAssembler: public Assembler {

int offset,

- SaveFPRegsMode save_fp,

RememberedSetAction remembered_set_action = EMIT_REMEMBERED_SET,

SmiCheck smi_check = INLINE_SMI_CHECK) {

RecordWriteField(context,

offset + kHeapObjectTag,

value,

scratch,

- save_fp,

remembered_set_action,

smi_check);

}

@@ -171,7 +167,6 @@ class MacroAssembler: public Assembler {

- SaveFPRegsMode save_fp,

RememberedSetAction remembered_set_action = EMIT_REMEMBERED_SET,

SmiCheck smi_check = INLINE_SMI_CHECK);

@@ -184,7 +179,6 @@ class MacroAssembler: public Assembler {

- SaveFPRegsMode save_fp,

RememberedSetAction remembered_set_action = EMIT_REMEMBERED_SET,

SmiCheck smi_check = INLINE_SMI_CHECK);

@@ -195,8 +189,7 @@ class MacroAssembler: public Assembler {

Handle<Map> map,

- Register scratch2,

- SaveFPRegsMode save_fp);

+ Register scratch2);

// ---------------------------------------------------------------------------

// Debugger Support

@@ -211,14 +204,14 @@ class MacroAssembler: public Assembler {

// arguments in register eax and sets up the number of arguments in

// register edi and the pointer to the first argument in register

// esi.

- void EnterExitFrame(bool save_doubles);

+ void EnterExitFrame();

void EnterApiExitFrame(int argc);

// Leave the current exit frame. Expects the return value in

// register eax:edx (untouched) and the pointer to the first

// argument in register esi.

- void LeaveExitFrame(bool save_doubles);

+ void LeaveExitFrame();

// Leave the current exit frame. Expects the return value in

// register eax (untouched).

@@ -326,12 +319,6 @@ class MacroAssembler: public Assembler {

void GetBuiltinEntry(Register target, Builtins::JavaScript id);

// Expression support

- // cvtsi2sd instruction only writes to the low 64-bit of dst register, which

- // hinders register renaming and makes dependence chains longer. So we use

- // xorps to clear the dst register before cvtsi2sd to solve this issue.

- void Cvtsi2sd(XMMRegister dst, Register src) { Cvtsi2sd(dst, Operand(src)); }

- void Cvtsi2sd(XMMRegister dst, const Operand& src);

// Support for constant splitting.

bool IsUnsafeImmediate(const Immediate& x);

void SafeMove(Register dst, const Immediate& x);

@@ -368,8 +355,7 @@ class MacroAssembler: public Assembler {

void StoreNumberToDoubleElements(Register maybe_number,

- Register scratch1,

- XMMRegister scratch2,

+ Register scratch,

Label* fail,

int offset = 0);

@@ -430,21 +416,16 @@ class MacroAssembler: public Assembler {

void ClampUint8(Register reg);

- void ClampDoubleToUint8(XMMRegister input_reg,

- XMMRegister scratch_reg,

- Register result_reg);

void SlowTruncateToI(Register result_reg, Register input_reg,

int offset = HeapNumber::kValueOffset - kHeapObjectTag);

void TruncateHeapNumberToI(Register result_reg, Register input_reg);

- void TruncateDoubleToI(Register result_reg, XMMRegister input_reg);

+ void TruncateX87TOSToI(Register result_reg);

- void DoubleToI(Register result_reg, XMMRegister input_reg,

- XMMRegister scratch, MinusZeroMode minus_zero_mode,

+ void X87TOSToI(Register result_reg, MinusZeroMode minus_zero_mode,

Label* conversion_failed, Label::Distance dst = Label::kFar);

- void TaggedToI(Register result_reg, Register input_reg, XMMRegister temp,

+ void TaggedToI(Register result_reg, Register input_reg,

MinusZeroMode minus_zero_mode, Label* lost_precision);

// Smi tagging support.

@@ -465,7 +446,7 @@ class MacroAssembler: public Assembler {

j(not_carry, is_smi);

}

- void LoadUint32(XMMRegister dst, Register src, XMMRegister scratch);

+ void LoadUint32NoSSE2(Register src);

// Jump the register contains a smi.

inline void JumpIfSmi(Register value,

@@ -500,7 +481,6 @@ class MacroAssembler: public Assembler {

sar(reg, shift);

and_(reg, Immediate(mask));

}

- void LoadPowerOf2(XMMRegister dst, Register scratch, int power);

// Abort execution if argument is not a number, enabled via --debug-code.

void AssertNumber(Register object);

@@ -717,19 +697,14 @@ class MacroAssembler: public Assembler {

void StubReturn(int argc);

// Call a runtime routine.

- void CallRuntime(const Runtime::Function* f,

- int num_arguments,

- SaveFPRegsMode save_doubles = kDontSaveFPRegs);

- void CallRuntimeSaveDoubles(Runtime::FunctionId id) {

+ void CallRuntime(const Runtime::Function* f, int num_arguments);

+ // Convenience function: Same as above, but takes the fid instead.

+ void CallRuntime(Runtime::FunctionId id) {

const Runtime::Function* function = Runtime::FunctionForId(id);

- CallRuntime(function, function->nargs, kSaveFPRegs);

+ CallRuntime(function, function->nargs);

}

- // Convenience function: Same as above, but takes the fid instead.

- void CallRuntime(Runtime::FunctionId id,

- int num_arguments,

- SaveFPRegsMode save_doubles = kDontSaveFPRegs) {

- CallRuntime(Runtime::FunctionForId(id), num_arguments, save_doubles);

+ void CallRuntime(Runtime::FunctionId id, int num_arguments) {

+ CallRuntime(Runtime::FunctionForId(id), num_arguments);

}

// Convenience function: call an external reference.

@@ -815,9 +790,6 @@ class MacroAssembler: public Assembler {

void Move(Register dst, const Immediate& x);

void Move(const Operand& dst, const Immediate& x);

- // Move an immediate into an XMM register.

- void Move(XMMRegister dst, double val);

// Push a handle value.

void Push(Handle<Object> handle) { push(Immediate(handle)); }

void Push(Smi* smi) { Push(Handle<Smi>(smi, isolate())); }

@@ -827,6 +799,9 @@ class MacroAssembler: public Assembler {

return code_object_;

}

+ // Insert code to verify that the x87 stack has the specified depth (0-7)

+ void VerifyX87StackDepth(uint32_t depth);

// Emit code for a truncating division by a constant. The dividend register is

// unchanged, the result is in edx, and eax gets clobbered.

void TruncatingDiv(Register dividend, int32_t divisor);

@@ -963,7 +938,7 @@ class MacroAssembler: public Assembler {

const CallWrapper& call_wrapper = NullCallWrapper());

void EnterExitFramePrologue();

- void EnterExitFrameEpilogue(int argc, bool save_doubles);

+ void EnterExitFrameEpilogue(int argc);

void LeaveExitFrameEpilogue(bool restore_context);

@@ -1089,4 +1064,4 @@ extern void LogGeneratedCodeCoverage(const char* file_line);

} } // namespace v8::internal

-#endif // V8_IA32_MACRO_ASSEMBLER_IA32_H_

+#endif // V8_X87_MACRO_ASSEMBLER_X87_H_

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