diff options
Diffstat (limited to 'deps/v8/src/compiler/backend/ppc/code-generator-ppc.cc')
| -rw-r--r-- | deps/v8/src/compiler/backend/ppc/code-generator-ppc.cc | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/deps/v8/src/compiler/backend/ppc/code-generator-ppc.cc b/deps/v8/src/compiler/backend/ppc/code-generator-ppc.cc index dde1804adb..964f888816 100644 --- a/deps/v8/src/compiler/backend/ppc/code-generator-ppc.cc +++ b/deps/v8/src/compiler/backend/ppc/code-generator-ppc.cc @@ -1019,13 +1019,20 @@ CodeGenerator::CodeGenResult CodeGenerator::AssembleArchInstruction( #endif break; case kArchCallCFunction: { - int const num_parameters = MiscField::decode(instr->opcode()); + int misc_field = MiscField::decode(instr->opcode()); + int num_parameters = misc_field; + bool has_function_descriptor = false; Label start_call; bool isWasmCapiFunction = linkage()->GetIncomingDescriptor()->IsWasmCapiFunction(); #if defined(_AIX) // AIX/PPC64BE Linux uses a function descriptor - // and emits 2 extra Load instrcutions under CallCFunctionHelper. + int kNumParametersMask = kHasFunctionDescriptorBitMask - 1; + num_parameters = kNumParametersMask & misc_field; + has_function_descriptor = + (misc_field & kHasFunctionDescriptorBitMask) != 0; + // AIX emits 2 extra Load instructions under CallCFunctionHelper + // due to having function descriptor. constexpr int offset = 11 * kInstrSize; #else constexpr int offset = 9 * kInstrSize; @@ -1041,10 +1048,10 @@ CodeGenerator::CodeGenResult CodeGenerator::AssembleArchInstruction( } if (instr->InputAt(0)->IsImmediate()) { ExternalReference ref = i.InputExternalReference(0); - __ CallCFunction(ref, num_parameters); + __ CallCFunction(ref, num_parameters, has_function_descriptor); } else { Register func = i.InputRegister(0); - __ CallCFunction(func, num_parameters); + __ CallCFunction(func, num_parameters, has_function_descriptor); } // TODO(miladfar): In the above block, kScratchReg must be populated with // the strictly-correct PC, which is the return address at this spot. The |