diff options
Diffstat (limited to 'src/vm/arm64/stubs.cpp')
| -rw-r--r-- | src/vm/arm64/stubs.cpp | 67 |
1 files changed, 55 insertions, 12 deletions
diff --git a/src/vm/arm64/stubs.cpp b/src/vm/arm64/stubs.cpp index b5dee2e23c..35e0ee74cd 100644 --- a/src/vm/arm64/stubs.cpp +++ b/src/vm/arm64/stubs.cpp @@ -1801,6 +1801,61 @@ VOID StubLinkerCPU::EmitShuffleThunk(ShuffleEntry *pShuffleEntryArray) EmitJumpRegister(IntReg(16)); } +// Emits code to adjust arguments for static delegate target. +VOID StubLinkerCPU::EmitComputedInstantiatingMethodStub(MethodDesc* pSharedMD, struct ShuffleEntry *pShuffleEntryArray, void* extraArg) +{ + STANDARD_VM_CONTRACT; + + for (ShuffleEntry* pEntry = pShuffleEntryArray; pEntry->srcofs != ShuffleEntry::SENTINEL; pEntry++) + { + _ASSERTE(pEntry->dstofs & ShuffleEntry::REGMASK); + _ASSERTE(pEntry->srcofs & ShuffleEntry::REGMASK); + _ASSERTE(!(pEntry->dstofs & ShuffleEntry::FPREGMASK)); + _ASSERTE(!(pEntry->srcofs & ShuffleEntry::FPREGMASK)); + _ASSERTE(pEntry->dstofs != ShuffleEntry::HELPERREG); + _ASSERTE(pEntry->srcofs != ShuffleEntry::HELPERREG); + + EmitMovReg(IntReg(pEntry->dstofs & ShuffleEntry::OFSMASK), IntReg(pEntry->srcofs & ShuffleEntry::OFSMASK)); + } + + MetaSig msig(pSharedMD); + ArgIterator argit(&msig); + + if (argit.HasParamType()) + { + ArgLocDesc sInstArgLoc; + argit.GetParamTypeLoc(&sInstArgLoc); + int regHidden = sInstArgLoc.m_idxGenReg; + _ASSERTE(regHidden != -1); + + if (extraArg == NULL) + { + if (pSharedMD->RequiresInstMethodTableArg()) + { + // Unboxing stub case + // Fill param arg with methodtable of this pointer + // ldr regHidden, [x0, #0] + EmitLoadStoreRegImm(eLOAD, IntReg(regHidden), IntReg(0), 0); + } + } + else + { + EmitMovConstant(IntReg(regHidden), (UINT64)extraArg); + } + } + + if (extraArg == NULL) + { + // Unboxing stub case + // Address of the value type is address of the boxed instance plus sizeof(MethodDesc*). + // add x0, #sizeof(MethodDesc*) + EmitAddImm(IntReg(0), IntReg(0), sizeof(MethodDesc*)); + } + + // Tail call the real target. + EmitCallManagedMethod(pSharedMD, TRUE /* tail call */); +} + void StubLinkerCPU::EmitCallLabel(CodeLabel *target, BOOL fTailCall, BOOL fIndirect) { BranchInstructionFormat::VariationCodes variationCode = BranchInstructionFormat::VariationCodes::BIF_VAR_JUMP; @@ -1828,18 +1883,6 @@ void StubLinkerCPU::EmitCallManagedMethod(MethodDesc *pMD, BOOL fTailCall) #ifndef CROSSGEN_COMPILE -void StubLinkerCPU::EmitUnboxMethodStub(MethodDesc *pMD) -{ - _ASSERTE(!pMD->RequiresInstMethodDescArg()); - - // Address of the value type is address of the boxed instance plus sizeof(MethodDesc*). - // add x0, #sizeof(MethodDesc*) - EmitAddImm(IntReg(0), IntReg(0), sizeof(MethodDesc*)); - - // Tail call the real target. - EmitCallManagedMethod(pMD, TRUE /* tail call */); -} - #ifdef FEATURE_READYTORUN // |