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Issue 2057403003: Hooking up asm-wasm conversion. (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: fix Created 4 years, 5 months ago
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1 // Copyright 2013 the V8 project authors. All rights reserved. 1 // Copyright 2013 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 #if V8_TARGET_ARCH_ARM64 5 #if V8_TARGET_ARCH_ARM64
6 6
7 #include "src/arm64/frames-arm64.h" 7 #include "src/arm64/frames-arm64.h"
8 #include "src/codegen.h" 8 #include "src/codegen.h"
9 #include "src/debug/debug.h" 9 #include "src/debug/debug.h"
10 #include "src/deoptimizer.h" 10 #include "src/deoptimizer.h"
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1408 void Builtins::Generate_CompileOptimized(MacroAssembler* masm) { 1408 void Builtins::Generate_CompileOptimized(MacroAssembler* masm) {
1409 GenerateTailCallToReturnedCode(masm, 1409 GenerateTailCallToReturnedCode(masm,
1410 Runtime::kCompileOptimized_NotConcurrent); 1410 Runtime::kCompileOptimized_NotConcurrent);
1411 } 1411 }
1412 1412
1413 1413
1414 void Builtins::Generate_CompileOptimizedConcurrent(MacroAssembler* masm) { 1414 void Builtins::Generate_CompileOptimizedConcurrent(MacroAssembler* masm) {
1415 GenerateTailCallToReturnedCode(masm, Runtime::kCompileOptimized_Concurrent); 1415 GenerateTailCallToReturnedCode(masm, Runtime::kCompileOptimized_Concurrent);
1416 } 1416 }
1417 1417
1418 void Builtins::Generate_InstantiateAsmJs(MacroAssembler* masm) {
1419 // ----------- S t a t e -------------
1420 // -- x0 : argument count (preserved for callee)
1421 // -- x1 : new target (preserved for callee)
1422 // -- x3 : target function (preserved for callee)
1423 // -----------------------------------
1424 Label failed;
1425 {
1426 FrameScope scope(masm, StackFrame::INTERNAL);
1427 // Push a copy of the target function and the new target.
1428 __ SmiTag(x0);
1429 // Push another copy as a parameter to the runtime call.
1430 __ Push(x0, x1, x3, x1);
1431
1432 // Copy arguments from caller (stdlib, foreign, heap).
1433 for (int i = 2; i >= 0; --i) {
1434 __ ldr(x4, MemOperand(fp, StandardFrameConstants::kCallerSPOffset +
1435 i * kPointerSize));
1436 __ push(x4);
1437 }
1438 // Call runtime, on success unwind frame, and parent frame.
1439 __ CallRuntime(Runtime::kInstantiateAsmJs, 4);
1440 // A smi 0 is returned on failure, an object on success.
1441 __ JumpIfSmi(x0, &failed);
1442 scope.GenerateLeaveFrame();
1443 __ Drop(4);
1444 __ Ret();
1445
1446 __ bind(&failed);
1447 // Restore target function and new target.
1448 __ Pop(x3, x1, x0);
1449 __ SmiUntag(x0);
1450 }
1451 // On failure, tail call back to regular js.
1452 GenerateTailCallToReturnedCode(masm, Runtime::kCompileLazy);
1453 }
1418 1454
1419 static void GenerateMakeCodeYoungAgainCommon(MacroAssembler* masm) { 1455 static void GenerateMakeCodeYoungAgainCommon(MacroAssembler* masm) {
1420 // For now, we are relying on the fact that make_code_young doesn't do any 1456 // For now, we are relying on the fact that make_code_young doesn't do any
1421 // garbage collection which allows us to save/restore the registers without 1457 // garbage collection which allows us to save/restore the registers without
1422 // worrying about which of them contain pointers. We also don't build an 1458 // worrying about which of them contain pointers. We also don't build an
1423 // internal frame to make the code fast, since we shouldn't have to do stack 1459 // internal frame to make the code fast, since we shouldn't have to do stack
1424 // crawls in MakeCodeYoung. This seems a bit fragile. 1460 // crawls in MakeCodeYoung. This seems a bit fragile.
1425 1461
1426 // The following caller-saved registers must be saved and restored when 1462 // The following caller-saved registers must be saved and restored when
1427 // calling through to the runtime: 1463 // calling through to the runtime:
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3001 } 3037 }
3002 } 3038 }
3003 3039
3004 3040
3005 #undef __ 3041 #undef __
3006 3042
3007 } // namespace internal 3043 } // namespace internal
3008 } // namespace v8 3044 } // namespace v8
3009 3045
3010 #endif // V8_TARGET_ARCH_ARM 3046 #endif // V8_TARGET_ARCH_ARM
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