mozilla-central/js/src/jsapi-tests/testJitMacroAssembler.cpp (file symbol)

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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
* vim: set ts=8 sts=2 et sw=2 tw=80:
*/
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "jit/IonAnalysis.h"
#include "jit/Linker.h"
#include "jit/MacroAssembler.h"
#include "jit/MIRGenerator.h"
#include "jit/MIRGraph.h"
#include "jit/ValueNumbering.h"
#include "js/Value.h"
#include "jsapi-tests/tests.h"
#include "jsapi-tests/testsJit.h"
#include "jit/MacroAssembler-inl.h"
using namespace js;
using namespace js::jit;
using mozilla::NegativeInfinity;
using mozilla::PositiveInfinity;
#if defined(JS_CODEGEN_X86) || defined(JS_CODEGEN_X64)
BEGIN_TEST(testJitMacroAssembler_flexibleDivMod) {
TempAllocator tempAlloc(&cx->tempLifoAlloc());
JitContext jcx(cx);
StackMacroAssembler masm(cx, tempAlloc);
AutoCreatedBy acb(masm, __func__);
PrepareJit(masm);
// Test case divides 9/2;
const uintptr_t quotient_result = 4;
const uintptr_t remainder_result = 1;
const uintptr_t dividend = 9;
const uintptr_t divisor = 2;
AllocatableGeneralRegisterSet leftOutputHandSides(GeneralRegisterSet::All());
while (!leftOutputHandSides.empty()) {
Register lhsOutput = leftOutputHandSides.takeAny();
AllocatableGeneralRegisterSet rightHandSides(GeneralRegisterSet::All());
while (!rightHandSides.empty()) {
Register rhs = rightHandSides.takeAny();
AllocatableGeneralRegisterSet remainders(GeneralRegisterSet::All());
while (!remainders.empty()) {
Register remainderOutput = remainders.takeAny();
if (lhsOutput == rhs || lhsOutput == remainderOutput ||
rhs == remainderOutput) {
continue;
}
AllocatableRegisterSet regs(RegisterSet::Volatile());
LiveRegisterSet save(regs.asLiveSet());
Label next, fail;
masm.mov(ImmWord(dividend), lhsOutput);
masm.mov(ImmWord(divisor), rhs);
masm.flexibleDivMod32(rhs, lhsOutput, remainderOutput, false, save);
masm.branch32(Assembler::NotEqual, AbsoluteAddress(&quotient_result),
lhsOutput, &fail);
masm.branch32(Assembler::NotEqual, AbsoluteAddress(&remainder_result),
remainderOutput, &fail);
// Ensure RHS was not clobbered
masm.branch32(Assembler::NotEqual, AbsoluteAddress(&divisor), rhs,
&fail);
masm.jump(&next);
masm.bind(&fail);
masm.printf("Failed");
masm.breakpoint();
masm.bind(&next);
}
}
}
return ExecuteJit(cx, masm);
}
END_TEST(testJitMacroAssembler_flexibleDivMod)
BEGIN_TEST(testJitMacroAssembler_flexibleRemainder) {
TempAllocator tempAlloc(&cx->tempLifoAlloc());
JitContext jcx(cx);
StackMacroAssembler masm(cx, tempAlloc);
AutoCreatedBy acb(masm, __func__);
PrepareJit(masm);
// Test case divides 9/2;
const uintptr_t dividend = 9;
const uintptr_t divisor = 2;
const uintptr_t remainder_result = 1;
AllocatableGeneralRegisterSet leftOutputHandSides(GeneralRegisterSet::All());
while (!leftOutputHandSides.empty()) {
Register lhsOutput = leftOutputHandSides.takeAny();
AllocatableGeneralRegisterSet rightHandSides(GeneralRegisterSet::All());
while (!rightHandSides.empty()) {
Register rhs = rightHandSides.takeAny();
if (lhsOutput == rhs) {
continue;
}
AllocatableRegisterSet regs(RegisterSet::Volatile());
LiveRegisterSet save(regs.asLiveSet());
Label next, fail;
masm.mov(ImmWord(dividend), lhsOutput);
masm.mov(ImmWord(divisor), rhs);
masm.flexibleRemainder32(rhs, lhsOutput, false, save);
masm.branch32(Assembler::NotEqual, AbsoluteAddress(&remainder_result),
lhsOutput, &fail);
// Ensure RHS was not clobbered
masm.branch32(Assembler::NotEqual, AbsoluteAddress(&divisor), rhs, &fail);
masm.jump(&next);
masm.bind(&fail);
masm.printf("Failed\n");
masm.breakpoint();
masm.bind(&next);
}
}
return ExecuteJit(cx, masm);
}
END_TEST(testJitMacroAssembler_flexibleRemainder)
BEGIN_TEST(testJitMacroAssembler_flexibleQuotient) {
TempAllocator tempAlloc(&cx->tempLifoAlloc());
JitContext jcx(cx);
StackMacroAssembler masm(cx, tempAlloc);
AutoCreatedBy acb(masm, __func__);
PrepareJit(masm);
// Test case divides 9/2;
const uintptr_t dividend = 9;
const uintptr_t divisor = 2;
const uintptr_t quotient_result = 4;
AllocatableGeneralRegisterSet leftOutputHandSides(GeneralRegisterSet::All());
while (!leftOutputHandSides.empty()) {
Register lhsOutput = leftOutputHandSides.takeAny();
AllocatableGeneralRegisterSet rightHandSides(GeneralRegisterSet::All());
while (!rightHandSides.empty()) {
Register rhs = rightHandSides.takeAny();
if (lhsOutput == rhs) {
continue;
}
AllocatableRegisterSet regs(RegisterSet::Volatile());
LiveRegisterSet save(regs.asLiveSet());
Label next, fail;
masm.mov(ImmWord(dividend), lhsOutput);
masm.mov(ImmWord(divisor), rhs);
masm.flexibleQuotient32(rhs, lhsOutput, false, save);
masm.branch32(Assembler::NotEqual, AbsoluteAddress(&quotient_result),
lhsOutput, &fail);
// Ensure RHS was not clobbered
masm.branch32(Assembler::NotEqual, AbsoluteAddress(&divisor), rhs, &fail);
masm.jump(&next);
masm.bind(&fail);
masm.printf("Failed\n");
masm.breakpoint();
masm.bind(&next);
}
}
return ExecuteJit(cx, masm);
}
END_TEST(testJitMacroAssembler_flexibleQuotient)
// To make sure ecx isn't being clobbered; globally scoped to ensure it has the
// right lifetime.
const uintptr_t guardEcx = 0xfeedbad;
bool shiftTest(JSContext* cx, const char* name,
void (*operation)(StackMacroAssembler& masm, Register, Register),
const uintptr_t* lhsInput, const uintptr_t* rhsInput,
const uintptr_t* result) {
TempAllocator tempAlloc(&cx->tempLifoAlloc());
JitContext jcx(cx);
StackMacroAssembler masm(cx, tempAlloc);
AutoCreatedBy acb(masm, __func__);
PrepareJit(masm);
JS::AutoSuppressGCAnalysis suppress;
AllocatableGeneralRegisterSet leftOutputHandSides(GeneralRegisterSet::All());
while (!leftOutputHandSides.empty()) {
Register lhsOutput = leftOutputHandSides.takeAny();
AllocatableGeneralRegisterSet rightHandSides(GeneralRegisterSet::All());
while (!rightHandSides.empty()) {
Register rhs = rightHandSides.takeAny();
// You can only use shift as the same reg if the values are the same
if (lhsOutput == rhs && *lhsInput != *rhsInput) {
continue;
}
Label next, outputFail, clobberRhs, clobberEcx, dump;
masm.mov(ImmWord(guardEcx), ecx);
masm.mov(ImmWord(*lhsInput), lhsOutput);
masm.mov(ImmWord(*rhsInput), rhs);
operation(masm, rhs, lhsOutput);
// Ensure Result is correct
masm.branch32(Assembler::NotEqual, AbsoluteAddress(result), lhsOutput,
&outputFail);
// Ensure RHS was not clobbered, unless it's also the output register.
if (lhsOutput != rhs) {
masm.branch32(Assembler::NotEqual, AbsoluteAddress(rhsInput), rhs,
&clobberRhs);
}
if (lhsOutput != ecx && rhs != ecx) {
// If neither lhsOutput nor rhs is ecx, make sure ecx has been
// preserved, otherwise it's expected to be covered by the RHS clobber
// check above, or intentionally clobbered as the output.
masm.branch32(Assembler::NotEqual, AbsoluteAddress(&guardEcx), ecx,
&clobberEcx);
}
masm.jump(&next);
masm.bind(&outputFail);
masm.printf("Incorrect output (got %d) ", lhsOutput);
masm.jump(&dump);
masm.bind(&clobberRhs);
masm.printf("rhs clobbered %d", rhs);
masm.jump(&dump);
masm.bind(&clobberEcx);
masm.printf("ecx clobbered");
masm.jump(&dump);
masm.bind(&dump);
masm.mov(ImmPtr(lhsOutput.name()), lhsOutput);
masm.printf("(lhsOutput/srcDest) %s ", lhsOutput);
masm.mov(ImmPtr(name), lhsOutput);
masm.printf("%s ", lhsOutput);
masm.mov(ImmPtr(rhs.name()), lhsOutput);
masm.printf("(shift/rhs) %s \n", lhsOutput);
// Breakpoint to force test failure.
masm.breakpoint();
masm.bind(&next);
}
}
return ExecuteJit(cx, masm);
}
BEGIN_TEST(testJitMacroAssembler_flexibleRshift) {
{
// Test case 16 >> 2 == 4;
const uintptr_t lhsInput = 16;
const uintptr_t rhsInput = 2;
const uintptr_t result = 4;
bool res = shiftTest(
cx, "flexibleRshift32",
[](StackMacroAssembler& masm, Register rhs, Register lhsOutput) {
masm.flexibleRshift32(rhs, lhsOutput);
},
&lhsInput, &rhsInput, &result);
if (!res) {
return false;
}
}
{
// Test case 16 >> 16 == 0 -- this helps cover the case where the same
// register can be passed for source and dest.
const uintptr_t lhsInput = 16;
const uintptr_t rhsInput = 16;
const uintptr_t result = 0;
bool res = shiftTest(
cx, "flexibleRshift32",
[](StackMacroAssembler& masm, Register rhs, Register lhsOutput) {
masm.flexibleRshift32(rhs, lhsOutput);
},
&lhsInput, &rhsInput, &result);
if (!res) {
return false;
}
}
return true;
}
END_TEST(testJitMacroAssembler_flexibleRshift)
BEGIN_TEST(testJitMacroAssembler_flexibleRshiftArithmetic) {
{
// Test case 4294967295 >> 2 == 4294967295;
const uintptr_t lhsInput = 4294967295;
const uintptr_t rhsInput = 2;
const uintptr_t result = 4294967295;
bool res = shiftTest(
cx, "flexibleRshift32Arithmetic",
[](StackMacroAssembler& masm, Register rhs, Register lhsOutput) {
masm.flexibleRshift32Arithmetic(rhs, lhsOutput);
},
&lhsInput, &rhsInput, &result);
if (!res) {
return false;
}
}
{
// Test case 16 >> 16 == 0 -- this helps cover the case where the same
// register can be passed for source and dest.
const uintptr_t lhsInput = 16;
const uintptr_t rhsInput = 16;
const uintptr_t result = 0;
bool res = shiftTest(
cx, "flexibleRshift32Arithmetic",
[](StackMacroAssembler& masm, Register rhs, Register lhsOutput) {
masm.flexibleRshift32Arithmetic(rhs, lhsOutput);
},
&lhsInput, &rhsInput, &result);
if (!res) {
return false;
}
}
return true;
}
END_TEST(testJitMacroAssembler_flexibleRshiftArithmetic)
BEGIN_TEST(testJitMacroAssembler_flexibleLshift) {
{
// Test case 16 << 2 == 64;
const uintptr_t lhsInput = 16;
const uintptr_t rhsInput = 2;
const uintptr_t result = 64;
bool res = shiftTest(
cx, "flexibleLshift32",
[](StackMacroAssembler& masm, Register rhs, Register lhsOutput) {
masm.flexibleLshift32(rhs, lhsOutput);
},
&lhsInput, &rhsInput, &result);
if (!res) {
return false;
}
}
{
// Test case 4 << 4 == 64; duplicated input case
const uintptr_t lhsInput = 4;
const uintptr_t rhsInput = 4;
const uintptr_t result = 64;
bool res = shiftTest(
cx, "flexibleLshift32",
[](StackMacroAssembler& masm, Register rhs, Register lhsOutput) {
masm.flexibleLshift32(rhs, lhsOutput);
},
&lhsInput, &rhsInput, &result);
if (!res) {
return false;
}
}
return true;
}
END_TEST(testJitMacroAssembler_flexibleLshift)
BEGIN_TEST(testJitMacroAssembler_truncateDoubleToInt64) {
TempAllocator tempAlloc(&cx->tempLifoAlloc());
JitContext jcx(cx);
StackMacroAssembler masm(cx, tempAlloc);
AutoCreatedBy acb(masm, __func__);
PrepareJit(masm);
AllocatableGeneralRegisterSet allRegs(GeneralRegisterSet::All());
AllocatableFloatRegisterSet allFloatRegs(FloatRegisterSet::All());
FloatRegister input = allFloatRegs.takeAny();
# ifdef JS_NUNBOX32
Register64 output(allRegs.takeAny(), allRegs.takeAny());
# else
Register64 output(allRegs.takeAny());
# endif
Register temp = allRegs.takeAny();
masm.reserveStack(sizeof(int32_t));
# define TEST(INPUT, OUTPUT) \
{ \
Label next; \
masm.loadConstantDouble(double(INPUT), input); \
masm.storeDouble(input, Operand(esp, 0)); \
masm.truncateDoubleToInt64(Address(esp, 0), Address(esp, 0), temp); \
masm.branch64(Assembler::Equal, Address(esp, 0), Imm64(OUTPUT), &next); \
masm.printf("truncateDoubleToInt64(" #INPUT ") failed\n"); \
masm.breakpoint(); \
masm.bind(&next); \
}
TEST(0, 0);
TEST(-0, 0);
TEST(1, 1);
TEST(9223372036854774784.0, 9223372036854774784);
TEST(-9223372036854775808.0, 0x8000000000000000);
TEST(9223372036854775808.0, 0x8000000000000000);
TEST(JS::GenericNaN(), 0x8000000000000000);
TEST(PositiveInfinity<double>(), 0x8000000000000000);
TEST(NegativeInfinity<double>(), 0x8000000000000000);
# undef TEST
masm.freeStack(sizeof(int32_t));
return ExecuteJit(cx, masm);
}
END_TEST(testJitMacroAssembler_truncateDoubleToInt64)
BEGIN_TEST(testJitMacroAssembler_truncateDoubleToUInt64) {
TempAllocator tempAlloc(&cx->tempLifoAlloc());
JitContext jcx(cx);
StackMacroAssembler masm(cx, tempAlloc);
AutoCreatedBy acb(masm, __func__);
PrepareJit(masm);
AllocatableGeneralRegisterSet allRegs(GeneralRegisterSet::All());
AllocatableFloatRegisterSet allFloatRegs(FloatRegisterSet::All());
FloatRegister input = allFloatRegs.takeAny();
FloatRegister floatTemp = allFloatRegs.takeAny();
# ifdef JS_NUNBOX32
Register64 output(allRegs.takeAny(), allRegs.takeAny());
# else
Register64 output(allRegs.takeAny());
# endif
Register temp = allRegs.takeAny();
masm.reserveStack(sizeof(int32_t));
# define TEST(INPUT, OUTPUT) \
{ \
Label next; \
masm.loadConstantDouble(double(INPUT), input); \
masm.storeDouble(input, Operand(esp, 0)); \
masm.truncateDoubleToUInt64(Address(esp, 0), Address(esp, 0), temp, \
floatTemp); \
masm.branch64(Assembler::Equal, Address(esp, 0), Imm64(OUTPUT), &next); \
masm.printf("truncateDoubleToUInt64(" #INPUT ") failed\n"); \
masm.breakpoint(); \
masm.bind(&next); \
}
TEST(0, 0);
TEST(1, 1);
TEST(9223372036854774784.0, 9223372036854774784);
TEST((uint64_t)0x8000000000000000, 0x8000000000000000);
TEST((uint64_t)0x8000000000000001, 0x8000000000000000);
TEST((uint64_t)0x8006004000000001, 0x8006004000000000);
TEST(-0.0, 0);
TEST(-0.5, 0);
TEST(-0.99, 0);
TEST(JS::GenericNaN(), 0x8000000000000000);
TEST(PositiveInfinity<double>(), 0x8000000000000000);
TEST(NegativeInfinity<double>(), 0x8000000000000000);
# undef TEST
masm.freeStack(sizeof(int32_t));
return ExecuteJit(cx, masm);
}
END_TEST(testJitMacroAssembler_truncateDoubleToUInt64)
BEGIN_TEST(testJitMacroAssembler_branchDoubleNotInInt64Range) {
TempAllocator tempAlloc(&cx->tempLifoAlloc());
JitContext jcx(cx);
StackMacroAssembler masm(cx, tempAlloc);
AutoCreatedBy acb(masm, __func__);
PrepareJit(masm);
AllocatableGeneralRegisterSet allRegs(GeneralRegisterSet::All());
AllocatableFloatRegisterSet allFloatRegs(FloatRegisterSet::All());
FloatRegister input = allFloatRegs.takeAny();
# ifdef JS_NUNBOX32
Register64 output(allRegs.takeAny(), allRegs.takeAny());
# else
Register64 output(allRegs.takeAny());
# endif
Register temp = allRegs.takeAny();
masm.reserveStack(sizeof(int32_t));
# define TEST(INPUT, OUTPUT) \
{ \
Label next; \
masm.loadConstantDouble(double(INPUT), input); \
masm.storeDouble(input, Operand(esp, 0)); \
if (OUTPUT) { \
masm.branchDoubleNotInInt64Range(Address(esp, 0), temp, &next); \
} else { \
Label fail; \
masm.branchDoubleNotInInt64Range(Address(esp, 0), temp, &fail); \
masm.jump(&next); \
masm.bind(&fail); \
} \
masm.printf("branchDoubleNotInInt64Range(" #INPUT ") failed\n"); \
masm.breakpoint(); \
masm.bind(&next); \
}
TEST(0, false);
TEST(-0, false);
TEST(1, false);
TEST(9223372036854774784.0, false);
TEST(-9223372036854775808.0, true);
TEST(9223372036854775808.0, true);
TEST(JS::GenericNaN(), true);
TEST(PositiveInfinity<double>(), true);
TEST(NegativeInfinity<double>(), true);
# undef TEST
masm.freeStack(sizeof(int32_t));
return ExecuteJit(cx, masm);
}
END_TEST(testJitMacroAssembler_branchDoubleNotInInt64Range)
BEGIN_TEST(testJitMacroAssembler_branchDoubleNotInUInt64Range) {
TempAllocator tempAlloc(&cx->tempLifoAlloc());
JitContext jcx(cx);
StackMacroAssembler masm(cx, tempAlloc);
AutoCreatedBy acb(masm, __func__);
PrepareJit(masm);
AllocatableGeneralRegisterSet allRegs(GeneralRegisterSet::All());
AllocatableFloatRegisterSet allFloatRegs(FloatRegisterSet::All());
FloatRegister input = allFloatRegs.takeAny();
# ifdef JS_NUNBOX32
Register64 output(allRegs.takeAny(), allRegs.takeAny());
# else
Register64 output(allRegs.takeAny());
# endif
Register temp = allRegs.takeAny();
masm.reserveStack(sizeof(int32_t));
# define TEST(INPUT, OUTPUT) \
{ \
Label next; \
masm.loadConstantDouble(double(INPUT), input); \
masm.storeDouble(input, Operand(esp, 0)); \
if (OUTPUT) { \
masm.branchDoubleNotInUInt64Range(Address(esp, 0), temp, &next); \
} else { \
Label fail; \
masm.branchDoubleNotInUInt64Range(Address(esp, 0), temp, &fail); \
masm.jump(&next); \
masm.bind(&fail); \
} \
masm.printf("branchDoubleNotInUInt64Range(" #INPUT ") failed\n"); \
masm.breakpoint(); \
masm.bind(&next); \
}
TEST(0, false);
TEST(1, false);
TEST(9223372036854774784.0, false);
TEST((uint64_t)0x8000000000000000, false);
TEST((uint64_t)0x8000000000000001, false);
TEST((uint64_t)0x8006004000000001, false);
TEST(-0.0, true);
TEST(-0.5, true);
TEST(-0.99, true);
TEST(JS::GenericNaN(), true);
TEST(PositiveInfinity<double>(), true);
TEST(NegativeInfinity<double>(), true);
# undef TEST
masm.freeStack(sizeof(int32_t));
return ExecuteJit(cx, masm);
}
END_TEST(testJitMacroAssembler_branchDoubleNotInUInt64Range)
BEGIN_TEST(testJitMacroAssembler_lshift64) {
TempAllocator tempAlloc(&cx->tempLifoAlloc());
JitContext jcx(cx);
StackMacroAssembler masm(cx, tempAlloc);
AutoCreatedBy acb(masm, __func__);
PrepareJit(masm);
AllocatableGeneralRegisterSet allRegs(GeneralRegisterSet::All());
AllocatableFloatRegisterSet allFloatRegs(FloatRegisterSet::All());
# if defined(JS_CODEGEN_X86)
Register shift = ecx;
allRegs.take(shift);
# elif defined(JS_CODEGEN_X64)
Register shift = rcx;
allRegs.take(shift);
# else
Register shift = allRegs.takeAny();
# endif
# ifdef JS_NUNBOX32
Register64 input(allRegs.takeAny(), allRegs.takeAny());
# else
Register64 input(allRegs.takeAny());
# endif
masm.reserveStack(sizeof(int32_t));
# define TEST(SHIFT, INPUT, OUTPUT) \
{ \
Label next; \
masm.move64(Imm64(INPUT), input); \
masm.move32(Imm32(SHIFT), shift); \
masm.lshift64(shift, input); \
masm.branch64(Assembler::Equal, input, Imm64(OUTPUT), &next); \
masm.printf("lshift64(" #SHIFT ", " #INPUT ") failed\n"); \
masm.breakpoint(); \
masm.bind(&next); \
} \
{ \
Label next; \
masm.move64(Imm64(INPUT), input); \
masm.lshift64(Imm32(SHIFT & 0x3f), input); \
masm.branch64(Assembler::Equal, input, Imm64(OUTPUT), &next); \
masm.printf("lshift64(Imm32(" #SHIFT "&0x3f), " #INPUT ") failed\n"); \
masm.breakpoint(); \
masm.bind(&next); \
}
TEST(0, 1, 1);
TEST(1, 1, 2);
TEST(2, 1, 4);
TEST(32, 1, 0x0000000100000000);
TEST(33, 1, 0x0000000200000000);
TEST(0, -1, 0xffffffffffffffff);
TEST(1, -1, 0xfffffffffffffffe);
TEST(2, -1, 0xfffffffffffffffc);
TEST(32, -1, 0xffffffff00000000);
TEST(0xffffffff, 1, 0x8000000000000000);
TEST(0xfffffffe, 1, 0x4000000000000000);
TEST(0xfffffffd, 1, 0x2000000000000000);
TEST(0x80000001, 1, 2);
# undef TEST
masm.freeStack(sizeof(int32_t));
return ExecuteJit(cx, masm);
}
END_TEST(testJitMacroAssembler_lshift64)
BEGIN_TEST(testJitMacroAssembler_rshift64Arithmetic) {
TempAllocator tempAlloc(&cx->tempLifoAlloc());
JitContext jcx(cx);
StackMacroAssembler masm(cx, tempAlloc);
AutoCreatedBy acb(masm, __func__);
PrepareJit(masm);
AllocatableGeneralRegisterSet allRegs(GeneralRegisterSet::All());
AllocatableFloatRegisterSet allFloatRegs(FloatRegisterSet::All());
# if defined(JS_CODEGEN_X86)
Register shift = ecx;
allRegs.take(shift);
# elif defined(JS_CODEGEN_X64)
Register shift = rcx;
allRegs.take(shift);
# else
Register shift = allRegs.takeAny();
# endif
# ifdef JS_NUNBOX32
Register64 input(allRegs.takeAny(), allRegs.takeAny());
# else
Register64 input(allRegs.takeAny());
# endif
masm.reserveStack(sizeof(int32_t));
# define TEST(SHIFT, INPUT, OUTPUT) \
{ \
Label next; \
masm.move64(Imm64(INPUT), input); \
masm.move32(Imm32(SHIFT), shift); \
masm.rshift64Arithmetic(shift, input); \
masm.branch64(Assembler::Equal, input, Imm64(OUTPUT), &next); \
masm.printf("rshift64Arithmetic(" #SHIFT ", " #INPUT ") failed\n"); \
masm.breakpoint(); \
masm.bind(&next); \
} \
{ \
Label next; \
masm.move64(Imm64(INPUT), input); \
masm.rshift64Arithmetic(Imm32(SHIFT & 0x3f), input); \
masm.branch64(Assembler::Equal, input, Imm64(OUTPUT), &next); \
masm.printf("rshift64Arithmetic(Imm32(" #SHIFT "&0x3f), " #INPUT \
") failed\n"); \
masm.breakpoint(); \
masm.bind(&next); \
}
TEST(0, 0x4000000000000000, 0x4000000000000000);
TEST(1, 0x4000000000000000, 0x2000000000000000);
TEST(2, 0x4000000000000000, 0x1000000000000000);
TEST(32, 0x4000000000000000, 0x0000000040000000);
TEST(0, 0x8000000000000000, 0x8000000000000000);
TEST(1, 0x8000000000000000, 0xc000000000000000);
TEST(2, 0x8000000000000000, 0xe000000000000000);
TEST(32, 0x8000000000000000, 0xffffffff80000000);
TEST(0xffffffff, 0x8000000000000000, 0xffffffffffffffff);
TEST(0xfffffffe, 0x8000000000000000, 0xfffffffffffffffe);
TEST(0xfffffffd, 0x8000000000000000, 0xfffffffffffffffc);
TEST(0x80000001, 0x8000000000000000, 0xc000000000000000);
# undef TEST
masm.freeStack(sizeof(int32_t));
return ExecuteJit(cx, masm);
}
END_TEST(testJitMacroAssembler_rshift64Arithmetic)
BEGIN_TEST(testJitMacroAssembler_rshift64) {
TempAllocator tempAlloc(&cx->tempLifoAlloc());
JitContext jcx(cx);
StackMacroAssembler masm(cx, tempAlloc);
AutoCreatedBy acb(masm, __func__);
PrepareJit(masm);
AllocatableGeneralRegisterSet allRegs(GeneralRegisterSet::All());
AllocatableFloatRegisterSet allFloatRegs(FloatRegisterSet::All());
# if defined(JS_CODEGEN_X86)
Register shift = ecx;
allRegs.take(shift);
# elif defined(JS_CODEGEN_X64)
Register shift = rcx;
allRegs.take(shift);
# else
Register shift = allRegs.takeAny();
# endif
# ifdef JS_NUNBOX32
Register64 input(allRegs.takeAny(), allRegs.takeAny());
# else
Register64 input(allRegs.takeAny());
# endif
masm.reserveStack(sizeof(int32_t));
# define TEST(SHIFT, INPUT, OUTPUT) \
{ \
Label next; \
masm.move64(Imm64(INPUT), input); \
masm.move32(Imm32(SHIFT), shift); \
masm.rshift64(shift, input); \
masm.branch64(Assembler::Equal, input, Imm64(OUTPUT), &next); \
masm.printf("rshift64(" #SHIFT ", " #INPUT ") failed\n"); \
masm.breakpoint(); \
masm.bind(&next); \
} \
{ \
Label next; \
masm.move64(Imm64(INPUT), input); \
masm.rshift64(Imm32(SHIFT & 0x3f), input); \
masm.branch64(Assembler::Equal, input, Imm64(OUTPUT), &next); \
masm.printf("rshift64(Imm32(" #SHIFT "&0x3f), " #INPUT ") failed\n"); \
masm.breakpoint(); \
masm.bind(&next); \
}
TEST(0, 0x4000000000000000, 0x4000000000000000);
TEST(1, 0x4000000000000000, 0x2000000000000000);
TEST(2, 0x4000000000000000, 0x1000000000000000);
TEST(32, 0x4000000000000000, 0x0000000040000000);
TEST(0, 0x8000000000000000, 0x8000000000000000);
TEST(1, 0x8000000000000000, 0x4000000000000000);
TEST(2, 0x8000000000000000, 0x2000000000000000);
TEST(32, 0x8000000000000000, 0x0000000080000000);
TEST(0xffffffff, 0x8000000000000000, 0x0000000000000001);
TEST(0xfffffffe, 0x8000000000000000, 0x0000000000000002);
TEST(0xfffffffd, 0x8000000000000000, 0x0000000000000004);
TEST(0x80000001, 0x8000000000000000, 0x4000000000000000);
# undef TEST
masm.freeStack(sizeof(int32_t));
return ExecuteJit(cx, masm);
}
END_TEST(testJitMacroAssembler_rshift64)
#endif