1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/js/src/jit/arm/LIR-arm.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,475 @@
1.4 +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
1.5 + * vim: set ts=8 sts=4 et sw=4 tw=99:
1.6 + * This Source Code Form is subject to the terms of the Mozilla Public
1.7 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.8 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.9 +
1.10 +#ifndef jit_arm_LIR_arm_h
1.11 +#define jit_arm_LIR_arm_h
1.12 +
1.13 +namespace js {
1.14 +namespace jit {
1.15 +
1.16 +class LBox : public LInstructionHelper<2, 1, 0>
1.17 +{
1.18 + MIRType type_;
1.19 +
1.20 + public:
1.21 + LIR_HEADER(Box);
1.22 +
1.23 + LBox(const LAllocation &in_payload, MIRType type)
1.24 + : type_(type)
1.25 + {
1.26 + setOperand(0, in_payload);
1.27 + }
1.28 +
1.29 + MIRType type() const {
1.30 + return type_;
1.31 + }
1.32 + const char *extraName() const {
1.33 + return StringFromMIRType(type_);
1.34 + }
1.35 +};
1.36 +
1.37 +class LBoxFloatingPoint : public LInstructionHelper<2, 1, 1>
1.38 +{
1.39 + MIRType type_;
1.40 +
1.41 + public:
1.42 + LIR_HEADER(BoxFloatingPoint);
1.43 +
1.44 + LBoxFloatingPoint(const LAllocation &in, const LDefinition &temp, MIRType type)
1.45 + : type_(type)
1.46 + {
1.47 + setOperand(0, in);
1.48 + setTemp(0, temp);
1.49 + }
1.50 +
1.51 + MIRType type() const {
1.52 + return type_;
1.53 + }
1.54 + const char *extraName() const {
1.55 + return StringFromMIRType(type_);
1.56 + }
1.57 +};
1.58 +
1.59 +class LUnbox : public LInstructionHelper<1, 2, 0>
1.60 +{
1.61 + public:
1.62 + LIR_HEADER(Unbox);
1.63 +
1.64 + MUnbox *mir() const {
1.65 + return mir_->toUnbox();
1.66 + }
1.67 + const LAllocation *payload() {
1.68 + return getOperand(0);
1.69 + }
1.70 + const LAllocation *type() {
1.71 + return getOperand(1);
1.72 + }
1.73 + const char *extraName() const {
1.74 + return StringFromMIRType(mir()->type());
1.75 + }
1.76 +};
1.77 +
1.78 +class LUnboxFloatingPoint : public LInstructionHelper<1, 2, 0>
1.79 +{
1.80 + MIRType type_;
1.81 +
1.82 + public:
1.83 + LIR_HEADER(UnboxFloatingPoint);
1.84 +
1.85 + static const size_t Input = 0;
1.86 +
1.87 + LUnboxFloatingPoint(MIRType type)
1.88 + : type_(type)
1.89 + { }
1.90 +
1.91 + MUnbox *mir() const {
1.92 + return mir_->toUnbox();
1.93 + }
1.94 +
1.95 + MIRType type() const {
1.96 + return type_;
1.97 + }
1.98 + const char *extraName() const {
1.99 + return StringFromMIRType(type_);
1.100 + }
1.101 +};
1.102 +
1.103 +// Convert a 32-bit unsigned integer to a double.
1.104 +class LAsmJSUInt32ToDouble : public LInstructionHelper<1, 1, 0>
1.105 +{
1.106 + public:
1.107 + LIR_HEADER(AsmJSUInt32ToDouble)
1.108 +
1.109 + LAsmJSUInt32ToDouble(const LAllocation &input) {
1.110 + setOperand(0, input);
1.111 + }
1.112 +};
1.113 +
1.114 +// Convert a 32-bit unsigned integer to a float32.
1.115 +class LAsmJSUInt32ToFloat32 : public LInstructionHelper<1, 1, 0>
1.116 +{
1.117 + public:
1.118 + LIR_HEADER(AsmJSUInt32ToFloat32)
1.119 +
1.120 + LAsmJSUInt32ToFloat32(const LAllocation &input) {
1.121 + setOperand(0, input);
1.122 + }
1.123 +};
1.124 +
1.125 +class LDivI : public LBinaryMath<1>
1.126 +{
1.127 + public:
1.128 + LIR_HEADER(DivI);
1.129 +
1.130 + LDivI(const LAllocation &lhs, const LAllocation &rhs,
1.131 + const LDefinition &temp) {
1.132 + setOperand(0, lhs);
1.133 + setOperand(1, rhs);
1.134 + setTemp(0, temp);
1.135 + }
1.136 +
1.137 + MDiv *mir() const {
1.138 + return mir_->toDiv();
1.139 + }
1.140 +};
1.141 +
1.142 +// LSoftDivI is a software divide for ARM cores that don't support a hardware
1.143 +// divide instruction.
1.144 +//
1.145 +// It is implemented as a proper C function so it trashes r0, r1, r2 and r3.
1.146 +// The call also trashes lr, and has the ability to trash ip. The function also
1.147 +// takes two arguments (dividend in r0, divisor in r1). The LInstruction gets
1.148 +// encoded such that the divisor and dividend are passed in their apropriate
1.149 +// registers and end their life at the start of the instruction by the use of
1.150 +// useFixedAtStart. The result is returned in r0 and the other three registers
1.151 +// that can be trashed are marked as temps. For the time being, the link
1.152 +// register is not marked as trashed because we never allocate to the link
1.153 +// register. The FP registers are not trashed.
1.154 +class LSoftDivI : public LBinaryMath<3>
1.155 +{
1.156 + public:
1.157 + LIR_HEADER(SoftDivI);
1.158 +
1.159 + LSoftDivI(const LAllocation &lhs, const LAllocation &rhs,
1.160 + const LDefinition &temp1, const LDefinition &temp2, const LDefinition &temp3) {
1.161 + setOperand(0, lhs);
1.162 + setOperand(1, rhs);
1.163 + setTemp(0, temp1);
1.164 + setTemp(1, temp2);
1.165 + setTemp(2, temp3);
1.166 + }
1.167 +
1.168 + MDiv *mir() const {
1.169 + return mir_->toDiv();
1.170 + }
1.171 +};
1.172 +
1.173 +class LDivPowTwoI : public LInstructionHelper<1, 1, 0>
1.174 +{
1.175 + const int32_t shift_;
1.176 +
1.177 + public:
1.178 + LIR_HEADER(DivPowTwoI)
1.179 +
1.180 + LDivPowTwoI(const LAllocation &lhs, int32_t shift)
1.181 + : shift_(shift)
1.182 + {
1.183 + setOperand(0, lhs);
1.184 + }
1.185 +
1.186 + const LAllocation *numerator() {
1.187 + return getOperand(0);
1.188 + }
1.189 +
1.190 + int32_t shift() {
1.191 + return shift_;
1.192 + }
1.193 +
1.194 + MDiv *mir() const {
1.195 + return mir_->toDiv();
1.196 + }
1.197 +};
1.198 +
1.199 +class LModI : public LBinaryMath<1>
1.200 +{
1.201 + public:
1.202 + LIR_HEADER(ModI);
1.203 +
1.204 + LModI(const LAllocation &lhs, const LAllocation &rhs,
1.205 + const LDefinition &callTemp)
1.206 + {
1.207 + setOperand(0, lhs);
1.208 + setOperand(1, rhs);
1.209 + setTemp(0, callTemp);
1.210 + }
1.211 +
1.212 + const LDefinition *callTemp() {
1.213 + return getTemp(0);
1.214 + }
1.215 +
1.216 + MMod *mir() const {
1.217 + return mir_->toMod();
1.218 + }
1.219 +};
1.220 +
1.221 +class LSoftModI : public LBinaryMath<4>
1.222 +{
1.223 + public:
1.224 + LIR_HEADER(SoftModI);
1.225 +
1.226 + LSoftModI(const LAllocation &lhs, const LAllocation &rhs,
1.227 + const LDefinition &temp1, const LDefinition &temp2, const LDefinition &temp3,
1.228 + const LDefinition &callTemp)
1.229 + {
1.230 + setOperand(0, lhs);
1.231 + setOperand(1, rhs);
1.232 + setTemp(0, temp1);
1.233 + setTemp(1, temp2);
1.234 + setTemp(2, temp3);
1.235 + setTemp(3, callTemp);
1.236 + }
1.237 +
1.238 + const LDefinition *callTemp() {
1.239 + return getTemp(3);
1.240 + }
1.241 +
1.242 + MMod *mir() const {
1.243 + return mir_->toMod();
1.244 + }
1.245 +};
1.246 +
1.247 +class LModPowTwoI : public LInstructionHelper<1, 1, 0>
1.248 +{
1.249 + const int32_t shift_;
1.250 +
1.251 + public:
1.252 + LIR_HEADER(ModPowTwoI);
1.253 + int32_t shift()
1.254 + {
1.255 + return shift_;
1.256 + }
1.257 +
1.258 + LModPowTwoI(const LAllocation &lhs, int32_t shift)
1.259 + : shift_(shift)
1.260 + {
1.261 + setOperand(0, lhs);
1.262 + }
1.263 +
1.264 + MMod *mir() const {
1.265 + return mir_->toMod();
1.266 + }
1.267 +};
1.268 +
1.269 +class LModMaskI : public LInstructionHelper<1, 1, 2>
1.270 +{
1.271 + const int32_t shift_;
1.272 +
1.273 + public:
1.274 + LIR_HEADER(ModMaskI);
1.275 +
1.276 + LModMaskI(const LAllocation &lhs, const LDefinition &temp1, const LDefinition &temp2,
1.277 + int32_t shift)
1.278 + : shift_(shift)
1.279 + {
1.280 + setOperand(0, lhs);
1.281 + setTemp(0, temp1);
1.282 + setTemp(1, temp2);
1.283 + }
1.284 +
1.285 + int32_t shift() const {
1.286 + return shift_;
1.287 + }
1.288 +
1.289 + MMod *mir() const {
1.290 + return mir_->toMod();
1.291 + }
1.292 +};
1.293 +
1.294 +class LPowHalfD : public LInstructionHelper<1, 1, 0>
1.295 +{
1.296 + public:
1.297 + LIR_HEADER(PowHalfD);
1.298 + LPowHalfD(const LAllocation &input) {
1.299 + setOperand(0, input);
1.300 + }
1.301 +
1.302 + const LAllocation *input() {
1.303 + return getOperand(0);
1.304 + }
1.305 + const LDefinition *output() {
1.306 + return getDef(0);
1.307 + }
1.308 +};
1.309 +
1.310 +// Takes a tableswitch with an integer to decide
1.311 +class LTableSwitch : public LInstructionHelper<0, 1, 1>
1.312 +{
1.313 + public:
1.314 + LIR_HEADER(TableSwitch);
1.315 +
1.316 + LTableSwitch(const LAllocation &in, const LDefinition &inputCopy, MTableSwitch *ins) {
1.317 + setOperand(0, in);
1.318 + setTemp(0, inputCopy);
1.319 + setMir(ins);
1.320 + }
1.321 +
1.322 + MTableSwitch *mir() const {
1.323 + return mir_->toTableSwitch();
1.324 + }
1.325 +
1.326 + const LAllocation *index() {
1.327 + return getOperand(0);
1.328 + }
1.329 + const LDefinition *tempInt() {
1.330 + return getTemp(0);
1.331 + }
1.332 + // This is added to share the same CodeGenerator prefixes.
1.333 + const LDefinition *tempPointer() {
1.334 + return nullptr;
1.335 + }
1.336 +};
1.337 +
1.338 +// Takes a tableswitch with an integer to decide
1.339 +class LTableSwitchV : public LInstructionHelper<0, BOX_PIECES, 2>
1.340 +{
1.341 + public:
1.342 + LIR_HEADER(TableSwitchV);
1.343 +
1.344 + LTableSwitchV(const LDefinition &inputCopy, const LDefinition &floatCopy,
1.345 + MTableSwitch *ins)
1.346 + {
1.347 + setTemp(0, inputCopy);
1.348 + setTemp(1, floatCopy);
1.349 + setMir(ins);
1.350 + }
1.351 +
1.352 + MTableSwitch *mir() const {
1.353 + return mir_->toTableSwitch();
1.354 + }
1.355 +
1.356 + static const size_t InputValue = 0;
1.357 +
1.358 + const LDefinition *tempInt() {
1.359 + return getTemp(0);
1.360 + }
1.361 + const LDefinition *tempFloat() {
1.362 + return getTemp(1);
1.363 + }
1.364 + const LDefinition *tempPointer() {
1.365 + return nullptr;
1.366 + }
1.367 +};
1.368 +
1.369 +class LGuardShape : public LInstructionHelper<0, 1, 1>
1.370 +{
1.371 + public:
1.372 + LIR_HEADER(GuardShape);
1.373 +
1.374 + LGuardShape(const LAllocation &in, const LDefinition &temp) {
1.375 + setOperand(0, in);
1.376 + setTemp(0, temp);
1.377 + }
1.378 + const MGuardShape *mir() const {
1.379 + return mir_->toGuardShape();
1.380 + }
1.381 + const LDefinition *tempInt() {
1.382 + return getTemp(0);
1.383 + }
1.384 +};
1.385 +
1.386 +class LGuardObjectType : public LInstructionHelper<0, 1, 1>
1.387 +{
1.388 + public:
1.389 + LIR_HEADER(GuardObjectType);
1.390 +
1.391 + LGuardObjectType(const LAllocation &in, const LDefinition &temp) {
1.392 + setOperand(0, in);
1.393 + setTemp(0, temp);
1.394 + }
1.395 + const MGuardObjectType *mir() const {
1.396 + return mir_->toGuardObjectType();
1.397 + }
1.398 + const LDefinition *tempInt() {
1.399 + return getTemp(0);
1.400 + }
1.401 +};
1.402 +
1.403 +class LInterruptCheck : public LInstructionHelper<0, 0, 0>
1.404 +{
1.405 + public:
1.406 + LIR_HEADER(InterruptCheck);
1.407 +};
1.408 +
1.409 +class LMulI : public LBinaryMath<0>
1.410 +{
1.411 + public:
1.412 + LIR_HEADER(MulI);
1.413 +
1.414 + MMul *mir() {
1.415 + return mir_->toMul();
1.416 + }
1.417 +};
1.418 +
1.419 +class LUDiv : public LBinaryMath<0>
1.420 +{
1.421 + public:
1.422 + LIR_HEADER(UDiv);
1.423 +
1.424 + MDiv *mir() {
1.425 + return mir_->toDiv();
1.426 + }
1.427 +};
1.428 +
1.429 +class LUMod : public LBinaryMath<0>
1.430 +{
1.431 + public:
1.432 + LIR_HEADER(UMod);
1.433 +
1.434 + MMod *mir() {
1.435 + return mir_->toMod();
1.436 + }
1.437 +};
1.438 +
1.439 +// This class performs a simple x86 'div', yielding either a quotient or remainder depending on
1.440 +// whether this instruction is defined to output eax (quotient) or edx (remainder).
1.441 +class LSoftUDivOrMod : public LBinaryMath<3>
1.442 +{
1.443 + public:
1.444 + LIR_HEADER(SoftUDivOrMod);
1.445 +
1.446 + LSoftUDivOrMod(const LAllocation &lhs, const LAllocation &rhs, const LDefinition &temp1,
1.447 + const LDefinition &temp2, const LDefinition &temp3) {
1.448 + setOperand(0, lhs);
1.449 + setOperand(1, rhs);
1.450 + setTemp(0, temp1);
1.451 + setTemp(1, temp2);
1.452 + setTemp(2, temp3);
1.453 + }
1.454 +};
1.455 +
1.456 +class LAsmJSLoadFuncPtr : public LInstructionHelper<1, 1, 1>
1.457 +{
1.458 + public:
1.459 + LIR_HEADER(AsmJSLoadFuncPtr);
1.460 + LAsmJSLoadFuncPtr(const LAllocation &index, const LDefinition &temp) {
1.461 + setOperand(0, index);
1.462 + setTemp(0, temp);
1.463 + }
1.464 + const MAsmJSLoadFuncPtr *mir() const {
1.465 + return mir_->toAsmJSLoadFuncPtr();
1.466 + }
1.467 + const LAllocation *index() {
1.468 + return getOperand(0);
1.469 + }
1.470 + const LDefinition *temp() {
1.471 + return getTemp(0);
1.472 + }
1.473 +};
1.474 +
1.475 +} // namespace jit
1.476 +} // namespace js
1.477 +
1.478 +#endif /* jit_arm_LIR_arm_h */
