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1 // Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file |
2 // for details. All rights reserved. Use of this source code is governed by a | 2 // for details. All rights reserved. Use of this source code is governed by a |
3 // BSD-style license that can be found in the LICENSE file. | 3 // BSD-style license that can be found in the LICENSE file. |
4 | 4 |
5 #include "vm/globals.h" // Needed here to get TARGET_ARCH_X64. | 5 #include "vm/globals.h" // Needed here to get TARGET_ARCH_X64. |
6 #if defined(TARGET_ARCH_X64) | 6 #if defined(TARGET_ARCH_X64) |
7 | 7 |
8 #include "vm/intermediate_language.h" | 8 #include "vm/intermediate_language.h" |
9 | 9 |
10 #include "vm/dart_entry.h" | 10 #include "vm/dart_entry.h" |
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1124 __ SmiTag(result); | 1124 __ SmiTag(result); |
1125 break; | 1125 break; |
1126 default: | 1126 default: |
1127 ASSERT((class_id() == kArrayCid) || (class_id() == kImmutableArrayCid)); | 1127 ASSERT((class_id() == kArrayCid) || (class_id() == kImmutableArrayCid)); |
1128 __ movq(result, element_address); | 1128 __ movq(result, element_address); |
1129 break; | 1129 break; |
1130 } | 1130 } |
1131 } | 1131 } |
1132 | 1132 |
1133 | 1133 |
1134 LocationSummary* LoadCodeUnitsInstr::MakeLocationSummary(Isolate* isolate, | |
1135 bool opt) const { | |
1136 const intptr_t kNumInputs = 2; | |
1137 const intptr_t kNumTemps = 0; | |
1138 LocationSummary* summary = new(isolate) LocationSummary( | |
1139 isolate, kNumInputs, kNumTemps, LocationSummary::kNoCall); | |
1140 summary->set_in(0, Location::RequiresRegister()); | |
1141 // The smi index is either untagged (element size == 1), or it is left smi | |
1142 // tagged (for all element sizes > 1). | |
1143 summary->set_in(1, index_scale() == 1 ? Location::WritableRegister() | |
1144 : Location::RequiresRegister()); | |
1145 summary->set_out(0, Location::RequiresRegister()); | |
1146 return summary; | |
1147 } | |
1148 | |
1149 | |
1150 void LoadCodeUnitsInstr::EmitNativeCode(FlowGraphCompiler* compiler) { | |
1151 const Register array = locs()->in(0).reg(); | |
1152 const Location index = locs()->in(1); | |
1153 | |
1154 Address element_address = Assembler::ElementAddressForRegIndex( | |
1155 IsExternal(), class_id(), index_scale(), array, index.reg()); | |
1156 | |
1157 if ((index_scale() == 1)) { | |
1158 __ SmiUntag(index.reg()); | |
1159 } | |
1160 Register result = locs()->out(0).reg(); | |
1161 switch (class_id()) { | |
1162 case kOneByteStringCid: | |
1163 case kExternalOneByteStringCid: | |
1164 switch (element_count()) { | |
1165 case 1: __ movzxb(result, element_address); break; | |
1166 case 2: __ movzxw(result, element_address); break; | |
1167 case 4: __ movl(result, element_address); break; | |
1168 default: UNREACHABLE(); | |
1169 } | |
1170 __ SmiTag(result); | |
1171 break; | |
1172 case kTwoByteStringCid: | |
1173 case kExternalTwoByteStringCid: | |
1174 switch (element_count()) { | |
1175 case 1: __ movzxw(result, element_address); break; | |
1176 case 2: __ movl(result, element_address); break; | |
1177 default: UNREACHABLE(); | |
1178 } | |
1179 __ SmiTag(result); | |
1180 break; | |
1181 default: | |
1182 UNREACHABLE(); | |
1183 break; | |
1184 } | |
1185 } | |
1186 | |
1187 | |
1188 Representation StoreIndexedInstr::RequiredInputRepresentation( | 1134 Representation StoreIndexedInstr::RequiredInputRepresentation( |
1189 intptr_t idx) const { | 1135 intptr_t idx) const { |
1190 if (idx == 0) return kNoRepresentation; | 1136 if (idx == 0) return kNoRepresentation; |
1191 if (idx == 1) return kTagged; | 1137 if (idx == 1) return kTagged; |
1192 ASSERT(idx == 2); | 1138 ASSERT(idx == 2); |
1193 switch (class_id_) { | 1139 switch (class_id_) { |
1194 case kArrayCid: | 1140 case kArrayCid: |
1195 case kOneByteStringCid: | 1141 case kOneByteStringCid: |
1196 case kTypedDataInt8ArrayCid: | 1142 case kTypedDataInt8ArrayCid: |
1197 case kTypedDataUint8ArrayCid: | 1143 case kTypedDataUint8ArrayCid: |
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4609 __ ReserveAlignedFrameSpace(0); | 4555 __ ReserveAlignedFrameSpace(0); |
4610 __ movaps(XMM0, locs()->in(0).fpu_reg()); | 4556 __ movaps(XMM0, locs()->in(0).fpu_reg()); |
4611 __ CallRuntime(TargetFunction(), InputCount()); | 4557 __ CallRuntime(TargetFunction(), InputCount()); |
4612 __ movaps(locs()->out(0).fpu_reg(), XMM0); | 4558 __ movaps(locs()->out(0).fpu_reg(), XMM0); |
4613 // Restore RSP. | 4559 // Restore RSP. |
4614 __ movq(RSP, locs()->temp(0).reg()); | 4560 __ movq(RSP, locs()->temp(0).reg()); |
4615 } | 4561 } |
4616 } | 4562 } |
4617 | 4563 |
4618 | 4564 |
4619 LocationSummary* CaseInsensitiveCompareUC16Instr::MakeLocationSummary( | |
4620 Isolate* isolate, bool opt) const { | |
4621 const intptr_t kNumTemps = 0; | |
4622 LocationSummary* summary = new(isolate) LocationSummary( | |
4623 isolate, InputCount(), kNumTemps, LocationSummary::kCall); | |
4624 summary->set_in(0, Location::RegisterLocation(CallingConventions::kArg1Reg)); | |
4625 summary->set_in(1, Location::RegisterLocation(CallingConventions::kArg2Reg)); | |
4626 summary->set_in(2, Location::RegisterLocation(CallingConventions::kArg3Reg)); | |
4627 summary->set_in(3, Location::RegisterLocation(CallingConventions::kArg4Reg)); | |
4628 summary->set_out(0, Location::RegisterLocation(RAX)); | |
4629 return summary; | |
4630 } | |
4631 | |
4632 | |
4633 void CaseInsensitiveCompareUC16Instr::EmitNativeCode( | |
4634 FlowGraphCompiler* compiler) { | |
4635 | |
4636 // Save RSP. R13 is chosen because it is callee saved so we do not need to | |
4637 // back it up before calling into the runtime. | |
4638 static const Register kSavedSPReg = R13; | |
4639 __ movq(kSavedSPReg, RSP); | |
4640 __ ReserveAlignedFrameSpace(0); | |
4641 | |
4642 // Call the function. Parameters are already in their correct spots. | |
4643 __ CallRuntime(TargetFunction(), TargetFunction().argument_count()); | |
4644 | |
4645 // Restore RSP. | |
4646 __ movq(RSP, kSavedSPReg); | |
4647 } | |
4648 | |
4649 | |
4650 LocationSummary* UnarySmiOpInstr::MakeLocationSummary(Isolate* isolate, | 4565 LocationSummary* UnarySmiOpInstr::MakeLocationSummary(Isolate* isolate, |
4651 bool opt) const { | 4566 bool opt) const { |
4652 const intptr_t kNumInputs = 1; | 4567 const intptr_t kNumInputs = 1; |
4653 return LocationSummary::Make(isolate, | 4568 return LocationSummary::Make(isolate, |
4654 kNumInputs, | 4569 kNumInputs, |
4655 Location::SameAsFirstInput(), | 4570 Location::SameAsFirstInput(), |
4656 LocationSummary::kNoCall); | 4571 LocationSummary::kNoCall); |
4657 } | 4572 } |
4658 | 4573 |
4659 | 4574 |
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6163 } | 6078 } |
6164 | 6079 |
6165 // We can fall through if the successor is the next block in the list. | 6080 // We can fall through if the successor is the next block in the list. |
6166 // Otherwise, we need a jump. | 6081 // Otherwise, we need a jump. |
6167 if (!compiler->CanFallThroughTo(successor())) { | 6082 if (!compiler->CanFallThroughTo(successor())) { |
6168 __ jmp(compiler->GetJumpLabel(successor())); | 6083 __ jmp(compiler->GetJumpLabel(successor())); |
6169 } | 6084 } |
6170 } | 6085 } |
6171 | 6086 |
6172 | 6087 |
6173 LocationSummary* IndirectGotoInstr::MakeLocationSummary(Isolate* isolate, | |
6174 bool opt) const { | |
6175 const intptr_t kNumInputs = 1; | |
6176 const intptr_t kNumTemps = 1; | |
6177 | |
6178 LocationSummary* summary = new(isolate) LocationSummary( | |
6179 isolate, kNumInputs, kNumTemps, LocationSummary::kNoCall); | |
6180 | |
6181 summary->set_in(0, Location::RequiresRegister()); | |
6182 summary->set_temp(0, Location::RequiresRegister()); | |
6183 | |
6184 return summary; | |
6185 } | |
6186 | |
6187 | |
6188 void IndirectGotoInstr::EmitNativeCode(FlowGraphCompiler* compiler) { | |
6189 Register offset_reg = locs()->in(0).reg(); | |
6190 Register target_address_reg = locs()->temp_slot(0)->reg(); | |
6191 | |
6192 // Load from [current frame pointer] + kPcMarkerSlotFromFp. | |
6193 __ movq(target_address_reg, Address(RBP, kPcMarkerSlotFromFp * kWordSize)); | |
6194 | |
6195 // Calculate the final absolute address. | |
6196 __ SmiUntag(offset_reg); | |
6197 __ addq(target_address_reg, offset_reg); | |
6198 | |
6199 // Jump to the absolute address. | |
6200 __ jmp(target_address_reg); | |
6201 } | |
6202 | |
6203 LocationSummary* StrictCompareInstr::MakeLocationSummary(Isolate* isolate, | 6088 LocationSummary* StrictCompareInstr::MakeLocationSummary(Isolate* isolate, |
6204 bool opt) const { | 6089 bool opt) const { |
6205 const intptr_t kNumInputs = 2; | 6090 const intptr_t kNumInputs = 2; |
6206 const intptr_t kNumTemps = 0; | 6091 const intptr_t kNumTemps = 0; |
6207 if (needs_number_check()) { | 6092 if (needs_number_check()) { |
6208 LocationSummary* locs = new(isolate) LocationSummary( | 6093 LocationSummary* locs = new(isolate) LocationSummary( |
6209 isolate, kNumInputs, kNumTemps, LocationSummary::kCall); | 6094 isolate, kNumInputs, kNumTemps, LocationSummary::kCall); |
6210 locs->set_in(0, Location::RegisterLocation(RAX)); | 6095 locs->set_in(0, Location::RegisterLocation(RAX)); |
6211 locs->set_in(1, Location::RegisterLocation(RCX)); | 6096 locs->set_in(1, Location::RegisterLocation(RCX)); |
6212 locs->set_out(0, Location::RegisterLocation(RAX)); | 6097 locs->set_out(0, Location::RegisterLocation(RAX)); |
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6384 __ movq(R10, Immediate(kInvalidObjectPointer)); | 6269 __ movq(R10, Immediate(kInvalidObjectPointer)); |
6385 __ movq(RBX, Immediate(kInvalidObjectPointer)); | 6270 __ movq(RBX, Immediate(kInvalidObjectPointer)); |
6386 #endif | 6271 #endif |
6387 } | 6272 } |
6388 | 6273 |
6389 } // namespace dart | 6274 } // namespace dart |
6390 | 6275 |
6391 #undef __ | 6276 #undef __ |
6392 | 6277 |
6393 #endif // defined TARGET_ARCH_X64 | 6278 #endif // defined TARGET_ARCH_X64 |
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