本文整理汇总了C++中specializedthunkjit::JumpList类的典型用法代码示例。如果您正苦于以下问题：C++ JumpList类的具体用法？C++ JumpList怎么用？C++ JumpList使用的例子？那么, 这里精选的类代码示例或许可以为您提供帮助。
在下文中一共展示了JumpList类的3个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: powThunkGenerator
MacroAssemblerCodePtr powThunkGenerator(JSGlobalData* globalData, ExecutablePool* pool)
{
#if USE(JSVALUE64) || USE(JSVALUE32_64)
SpecializedThunkJIT jit(2, globalData, pool);
if (!jit.supportsFloatingPoint())
return globalData->jitStubs->ctiNativeCall();
jit.loadDouble(&oneConstant, SpecializedThunkJIT::fpRegT1);
jit.loadDoubleArgument(0, SpecializedThunkJIT::fpRegT0, SpecializedThunkJIT::regT0);
MacroAssembler::Jump nonIntExponent;
jit.loadInt32Argument(1, SpecializedThunkJIT::regT0, nonIntExponent);
jit.appendFailure(jit.branch32(MacroAssembler::LessThan, SpecializedThunkJIT::regT0, MacroAssembler::Imm32(0)));
MacroAssembler::Jump exponentIsZero = jit.branchTest32(MacroAssembler::Zero, SpecializedThunkJIT::regT0);
MacroAssembler::Label startLoop(jit.label());
MacroAssembler::Jump exponentIsEven = jit.branchTest32(MacroAssembler::Zero, SpecializedThunkJIT::regT0, MacroAssembler::Imm32(1));
jit.mulDouble(SpecializedThunkJIT::fpRegT0, SpecializedThunkJIT::fpRegT1);
exponentIsEven.link(&jit);
jit.mulDouble(SpecializedThunkJIT::fpRegT0, SpecializedThunkJIT::fpRegT0);
jit.rshift32(MacroAssembler::Imm32(1), SpecializedThunkJIT::regT0);
jit.branchTest32(MacroAssembler::NonZero, SpecializedThunkJIT::regT0).linkTo(startLoop, &jit);
exponentIsZero.link(&jit);
{
SpecializedThunkJIT::JumpList doubleResult;
jit.branchConvertDoubleToInt32(SpecializedThunkJIT::fpRegT1, SpecializedThunkJIT::regT0, doubleResult, SpecializedThunkJIT::fpRegT0);
jit.returnInt32(SpecializedThunkJIT::regT0);
doubleResult.link(&jit);
jit.returnDouble(SpecializedThunkJIT::fpRegT1);
}
if (jit.supportsFloatingPointSqrt()) {
nonIntExponent.link(&jit);
jit.loadDouble(&negativeHalfConstant, SpecializedThunkJIT::fpRegT3);
jit.loadDoubleArgument(1, SpecializedThunkJIT::fpRegT2, SpecializedThunkJIT::regT0);
jit.appendFailure(jit.branchDouble(MacroAssembler::DoubleLessThanOrEqual, SpecializedThunkJIT::fpRegT0, SpecializedThunkJIT::fpRegT1));
jit.appendFailure(jit.branchDouble(MacroAssembler::DoubleNotEqualOrUnordered, SpecializedThunkJIT::fpRegT2, SpecializedThunkJIT::fpRegT3));
jit.sqrtDouble(SpecializedThunkJIT::fpRegT0, SpecializedThunkJIT::fpRegT0);
jit.divDouble(SpecializedThunkJIT::fpRegT0, SpecializedThunkJIT::fpRegT1);
SpecializedThunkJIT::JumpList doubleResult;
jit.branchConvertDoubleToInt32(SpecializedThunkJIT::fpRegT1, SpecializedThunkJIT::regT0, doubleResult, SpecializedThunkJIT::fpRegT0);
jit.returnInt32(SpecializedThunkJIT::regT0);
doubleResult.link(&jit);
jit.returnDouble(SpecializedThunkJIT::fpRegT1);
} else
jit.appendFailure(nonIntExponent);
return jit.finalize(globalData->jitStubs->ctiNativeCall());
#else
UNUSED_PARAM(pool);
return globalData->jitStubs->ctiNativeCall();
#endif
}示例2: ceilThunkGenerator
MacroAssemblerCodeRef ceilThunkGenerator(VM* vm)
{
SpecializedThunkJIT jit(vm, 1);
if (!UnaryDoubleOpWrapper(ceil) || !jit.supportsFloatingPoint())
return MacroAssemblerCodeRef::createSelfManagedCodeRef(vm->jitStubs->ctiNativeCall(vm));
MacroAssembler::Jump nonIntJump;
jit.loadInt32Argument(0, SpecializedThunkJIT::regT0, nonIntJump);
jit.returnInt32(SpecializedThunkJIT::regT0);
nonIntJump.link(&jit);
jit.loadDoubleArgument(0, SpecializedThunkJIT::fpRegT0, SpecializedThunkJIT::regT0);
#if CPU(ARM64)
jit.ceilDouble(SpecializedThunkJIT::fpRegT0, SpecializedThunkJIT::fpRegT0);
#else
jit.callDoubleToDoublePreservingReturn(UnaryDoubleOpWrapper(ceil));
#endif // CPU(ARM64)
SpecializedThunkJIT::JumpList doubleResult;
jit.branchConvertDoubleToInt32(SpecializedThunkJIT::fpRegT0, SpecializedThunkJIT::regT0, doubleResult, SpecializedThunkJIT::fpRegT1);
jit.returnInt32(SpecializedThunkJIT::regT0);
doubleResult.link(&jit);
jit.returnDouble(SpecializedThunkJIT::fpRegT0);
return jit.finalize(vm->jitStubs->ctiNativeTailCall(vm), "ceil");
}示例3: floorThunkGenerator
MacroAssemblerCodeRef floorThunkGenerator(VM* vm)
{
SpecializedThunkJIT jit(vm, 1);
MacroAssembler::Jump nonIntJump;
if (!UnaryDoubleOpWrapper(floor) || !jit.supportsFloatingPoint())
return MacroAssemblerCodeRef::createSelfManagedCodeRef(vm->jitStubs->ctiNativeCall(vm));
jit.loadInt32Argument(0, SpecializedThunkJIT::regT0, nonIntJump);
jit.returnInt32(SpecializedThunkJIT::regT0);
nonIntJump.link(&jit);
jit.loadDoubleArgument(0, SpecializedThunkJIT::fpRegT0, SpecializedThunkJIT::regT0);
#if CPU(ARM64)
SpecializedThunkJIT::JumpList doubleResult;
jit.floorDouble(SpecializedThunkJIT::fpRegT0, SpecializedThunkJIT::fpRegT0);
jit.branchConvertDoubleToInt32(SpecializedThunkJIT::fpRegT0, SpecializedThunkJIT::regT0, doubleResult, SpecializedThunkJIT::fpRegT1);
jit.returnInt32(SpecializedThunkJIT::regT0);
doubleResult.link(&jit);
jit.returnDouble(SpecializedThunkJIT::fpRegT0);
#else
SpecializedThunkJIT::Jump intResult;
SpecializedThunkJIT::JumpList doubleResult;
if (jit.supportsFloatingPointTruncate()) {
jit.loadDouble(&zeroConstant, SpecializedThunkJIT::fpRegT1);
doubleResult.append(jit.branchDouble(MacroAssembler::DoubleEqual, SpecializedThunkJIT::fpRegT0, SpecializedThunkJIT::fpRegT1));
SpecializedThunkJIT::JumpList slowPath;
// Handle the negative doubles in the slow path for now.
slowPath.append(jit.branchDouble(MacroAssembler::DoubleLessThanOrUnordered, SpecializedThunkJIT::fpRegT0, SpecializedThunkJIT::fpRegT1));
slowPath.append(jit.branchTruncateDoubleToInt32(SpecializedThunkJIT::fpRegT0, SpecializedThunkJIT::regT0));
intResult = jit.jump();
slowPath.link(&jit);
}
jit.callDoubleToDoublePreservingReturn(UnaryDoubleOpWrapper(floor));
jit.branchConvertDoubleToInt32(SpecializedThunkJIT::fpRegT0, SpecializedThunkJIT::regT0, doubleResult, SpecializedThunkJIT::fpRegT1);
if (jit.supportsFloatingPointTruncate())
intResult.link(&jit);
jit.returnInt32(SpecializedThunkJIT::regT0);
doubleResult.link(&jit);
jit.returnDouble(SpecializedThunkJIT::fpRegT0);
#endif // CPU(ARM64)
return jit.finalize(vm->jitStubs->ctiNativeTailCall(vm), "floor");
}