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1 // Copyright 2014 the V8 project authors. All rights reserved. | 1 // Copyright 2014 the V8 project authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef V8_COMPILER_LINKAGE_IMPL_H_ | 5 #ifndef V8_COMPILER_LINKAGE_IMPL_H_ |
6 #define V8_COMPILER_LINKAGE_IMPL_H_ | 6 #define V8_COMPILER_LINKAGE_IMPL_H_ |
7 | 7 |
8 #include "src/code-stubs.h" | 8 #include "src/code-stubs.h" |
9 #include "src/compiler/osr.h" | 9 #include "src/compiler/osr.h" |
10 | 10 |
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50 int spill_slot_index = i - js_parameter_count; | 50 int spill_slot_index = i - js_parameter_count; |
51 locations.AddParam(stackloc(spill_slot_index)); | 51 locations.AddParam(stackloc(spill_slot_index)); |
52 types.AddParam(kMachAnyTagged); | 52 types.AddParam(kMachAnyTagged); |
53 } | 53 } |
54 // Add context. | 54 // Add context. |
55 locations.AddParam(regloc(LinkageTraits::ContextReg())); | 55 locations.AddParam(regloc(LinkageTraits::ContextReg())); |
56 types.AddParam(kMachAnyTagged); | 56 types.AddParam(kMachAnyTagged); |
57 | 57 |
58 // The target for JS function calls is the JSFunction object. | 58 // The target for JS function calls is the JSFunction object. |
59 MachineType target_type = kMachAnyTagged; | 59 MachineType target_type = kMachAnyTagged; |
60 // Unoptimized code doesn't preserve the JSCallFunctionReg, so expect the | 60 // TODO(titzer): JSFunction is in the frame, but not currently addressable. |
Michael Starzinger
2015/03/25 14:27:37
nit: IIUC this TODO only applies to OSR, for non-O
titzer
2015/03/25 16:12:05
Done.
| |
61 // closure on the stack. | 61 LinkageLocation target_loc = regloc(LinkageTraits::JSCallFunctionReg()); |
62 LinkageLocation target_loc = | |
63 is_osr ? stackloc(Linkage::kJSFunctionCallClosureParamIndex - | |
64 js_parameter_count) | |
65 : regloc(LinkageTraits::JSCallFunctionReg()); | |
66 return new (zone) CallDescriptor( // -- | 62 return new (zone) CallDescriptor( // -- |
67 CallDescriptor::kCallJSFunction, // kind | 63 CallDescriptor::kCallJSFunction, // kind |
68 target_type, // target MachineType | 64 target_type, // target MachineType |
69 target_loc, // target location | 65 target_loc, // target location |
70 types.Build(), // machine_sig | 66 types.Build(), // machine_sig |
71 locations.Build(), // location_sig | 67 locations.Build(), // location_sig |
72 js_parameter_count, // js_parameter_count | 68 js_parameter_count, // js_parameter_count |
73 Operator::kNoProperties, // properties | 69 Operator::kNoProperties, // properties |
74 kNoCalleeSaved, // callee-saved | 70 kNoCalleeSaved, // callee-saved |
75 flags, // flags | 71 flags, // flags |
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285 int parameter_index = 1 + index; // skip index 0, which is the target. | 281 int parameter_index = 1 + index; // skip index 0, which is the target. |
286 return incoming_->GetInputLocation(parameter_index); | 282 return incoming_->GetInputLocation(parameter_index); |
287 } | 283 } |
288 } | 284 } |
289 | 285 |
290 } // namespace compiler | 286 } // namespace compiler |
291 } // namespace internal | 287 } // namespace internal |
292 } // namespace v8 | 288 } // namespace v8 |
293 | 289 |
294 #endif // V8_COMPILER_LINKAGE_IMPL_H_ | 290 #endif // V8_COMPILER_LINKAGE_IMPL_H_ |
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