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authorMichaël Zasso <targos@protonmail.com>2019-10-23 15:01:12 +0200
committerMichaël Zasso <targos@protonmail.com>2019-11-08 15:53:20 +0100
commita9bed0b72b088b5ae8eef625a41b76225686c3f7 (patch)
treef8ea194ed1f9896c36c8c1805041b7149ec075b4 /deps
parentd9fab1fdb76ae3a69b5812a7f2190cf3e58f6d75 (diff)
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deps: V8: backport 07ee86a5a28b
Original commit message: PPC: allow for calling CFunctions without function descriptors on AIX. The calling conventions on AIX uses function descriptors, which means that pointers to functions do not point to code, but instead point to metadata about them. When calling JITed code, we must assure to use function descriptors instead of raw pointers when needed. Before this CL 213504b, all CallCFunction on AIX were guaranteed to have function descriptors. Starting form the CL mentioned above, CallCFunction can also Jump to a Trampoline which does not have a function descriptor, hence a new "CallCFunctionWithoutFunctionDescriptor" method is proposed to deal with this issue. BUG= v8:9766 Change-Id: I9343c31c812f5d4dda8503a5adf024b24dbde072 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1825961 Commit-Queue: Milad Farazmand <miladfar@ca.ibm.com> Reviewed-by: Michael Starzinger <mstarzinger@chromium.org> Reviewed-by: Jakob Gruber <jgruber@chromium.org> Cr-Commit-Position: refs/heads/master@{#64357} Refs: https://github.com/v8/v8/commit/07ee86a5a28b7f9526748ca8f765c1b704f93c0c PR-URL: https://github.com/nodejs/node/pull/30020 Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: Jiawen Geng <technicalcute@gmail.com> Reviewed-By: Anna Henningsen <anna@addaleax.net> Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Diffstat (limited to 'deps')
-rw-r--r--deps/v8/src/builtins/builtins-regexp-gen.cc19
-rw-r--r--deps/v8/src/codegen/ppc/assembler-ppc.cc14
-rw-r--r--deps/v8/src/codegen/ppc/assembler-ppc.h2
-rw-r--r--deps/v8/src/codegen/ppc/constants-ppc.h6
-rw-r--r--deps/v8/src/codegen/ppc/macro-assembler-ppc.cc33
-rw-r--r--deps/v8/src/codegen/ppc/macro-assembler-ppc.h15
-rw-r--r--deps/v8/src/common/globals.h1
-rw-r--r--deps/v8/src/compiler/backend/instruction-selector.cc13
-rw-r--r--deps/v8/src/compiler/backend/instruction.h3
-rw-r--r--deps/v8/src/compiler/backend/ppc/code-generator-ppc.cc15
-rw-r--r--deps/v8/src/compiler/code-assembler.cc7
-rw-r--r--deps/v8/src/compiler/code-assembler.h16
-rw-r--r--deps/v8/src/compiler/linkage.h9
-rw-r--r--deps/v8/src/compiler/raw-machine-assembler.cc12
-rw-r--r--deps/v8/src/compiler/raw-machine-assembler.h16
-rw-r--r--deps/v8/src/execution/simulator.h15
-rw-r--r--deps/v8/src/regexp/ppc/regexp-macro-assembler-ppc.cc2
-rw-r--r--deps/v8/src/regexp/regexp-macro-assembler.cc6
18 files changed, 137 insertions, 67 deletions
diff --git a/deps/v8/src/builtins/builtins-regexp-gen.cc b/deps/v8/src/builtins/builtins-regexp-gen.cc
index 4bc0b6ad74..b333f2a820 100644
--- a/deps/v8/src/builtins/builtins-regexp-gen.cc
+++ b/deps/v8/src/builtins/builtins-regexp-gen.cc
@@ -605,13 +605,18 @@ TNode<HeapObject> RegExpBuiltinsAssembler::RegExpExecInternal(
TNode<RawPtrT> code_entry = LoadCodeObjectEntry(code);
- TNode<Int32T> result = UncheckedCast<Int32T>(CallCFunction(
- code_entry, retval_type, std::make_pair(arg0_type, arg0),
- std::make_pair(arg1_type, arg1), std::make_pair(arg2_type, arg2),
- std::make_pair(arg3_type, arg3), std::make_pair(arg4_type, arg4),
- std::make_pair(arg5_type, arg5), std::make_pair(arg6_type, arg6),
- std::make_pair(arg7_type, arg7), std::make_pair(arg8_type, arg8),
- std::make_pair(arg9_type, arg9)));
+ // AIX uses function descriptors on CFunction calls. code_entry in this case
+ // may also point to a Regex interpreter entry trampoline which does not
+ // have a function descriptor. This method is ineffective on other platforms
+ // and is equivalent to CallCFunction.
+ TNode<Int32T> result =
+ UncheckedCast<Int32T>(CallCFunctionWithoutFunctionDescriptor(
+ code_entry, retval_type, std::make_pair(arg0_type, arg0),
+ std::make_pair(arg1_type, arg1), std::make_pair(arg2_type, arg2),
+ std::make_pair(arg3_type, arg3), std::make_pair(arg4_type, arg4),
+ std::make_pair(arg5_type, arg5), std::make_pair(arg6_type, arg6),
+ std::make_pair(arg7_type, arg7), std::make_pair(arg8_type, arg8),
+ std::make_pair(arg9_type, arg9)));
// Check the result.
// We expect exactly one result since we force the called regexp to behave
diff --git a/deps/v8/src/codegen/ppc/assembler-ppc.cc b/deps/v8/src/codegen/ppc/assembler-ppc.cc
index 17a3aba1b2..03dbb2edaa 100644
--- a/deps/v8/src/codegen/ppc/assembler-ppc.cc
+++ b/deps/v8/src/codegen/ppc/assembler-ppc.cc
@@ -1121,20 +1121,6 @@ void Assembler::divdu(Register dst, Register src1, Register src2, OEBit o,
}
#endif
-// Function descriptor for AIX.
-// Code address skips the function descriptor "header".
-// TOC and static chain are ignored and set to 0.
-void Assembler::function_descriptor() {
- if (ABI_USES_FUNCTION_DESCRIPTORS) {
- Label instructions;
- DCHECK_EQ(pc_offset(), 0);
- emit_label_addr(&instructions);
- dp(0);
- dp(0);
- bind(&instructions);
- }
-}
-
int Assembler::instructions_required_for_mov(Register dst,
const Operand& src) const {
bool canOptimize =
diff --git a/deps/v8/src/codegen/ppc/assembler-ppc.h b/deps/v8/src/codegen/ppc/assembler-ppc.h
index 42eda72d4d..c056de9f2f 100644
--- a/deps/v8/src/codegen/ppc/assembler-ppc.h
+++ b/deps/v8/src/codegen/ppc/assembler-ppc.h
@@ -840,8 +840,6 @@ class Assembler : public AssemblerBase {
void mtfprwa(DoubleRegister dst, Register src);
#endif
- void function_descriptor();
-
// Exception-generating instructions and debugging support
void stop(Condition cond = al, int32_t code = kDefaultStopCode,
CRegister cr = cr7);
diff --git a/deps/v8/src/codegen/ppc/constants-ppc.h b/deps/v8/src/codegen/ppc/constants-ppc.h
index f6ebc6a7ba..2e499fd2c4 100644
--- a/deps/v8/src/codegen/ppc/constants-ppc.h
+++ b/deps/v8/src/codegen/ppc/constants-ppc.h
@@ -60,6 +60,12 @@ namespace internal {
// TODO(sigurds): Change this value once we use relative jumps.
constexpr size_t kMaxPCRelativeCodeRangeInMB = 0;
+// Used to encode a boolean value when emitting 32 bit
+// opcodes which will indicate the presence of function descriptors
+constexpr int kHasFunctionDescriptorBitShift = 9;
+constexpr int kHasFunctionDescriptorBitMask = 1
+ << kHasFunctionDescriptorBitShift;
+
// Number of registers
const int kNumRegisters = 32;
diff --git a/deps/v8/src/codegen/ppc/macro-assembler-ppc.cc b/deps/v8/src/codegen/ppc/macro-assembler-ppc.cc
index 9e41dec2a8..08fb85dd2c 100644
--- a/deps/v8/src/codegen/ppc/macro-assembler-ppc.cc
+++ b/deps/v8/src/codegen/ppc/macro-assembler-ppc.cc
@@ -209,6 +209,12 @@ void TurboAssembler::Jump(const ExternalReference& reference) {
UseScratchRegisterScope temps(this);
Register scratch = temps.Acquire();
Move(scratch, reference);
+ if (ABI_USES_FUNCTION_DESCRIPTORS) {
+ // AIX uses a function descriptor. When calling C code be
+ // aware of this descriptor and pick up values from it.
+ LoadP(ToRegister(ABI_TOC_REGISTER), MemOperand(scratch, kPointerSize));
+ LoadP(scratch, MemOperand(scratch, 0));
+ }
Jump(scratch);
}
@@ -1930,28 +1936,35 @@ void TurboAssembler::MovToFloatParameters(DoubleRegister src1,
void TurboAssembler::CallCFunction(ExternalReference function,
int num_reg_arguments,
- int num_double_arguments) {
+ int num_double_arguments,
+ bool has_function_descriptor) {
Move(ip, function);
- CallCFunctionHelper(ip, num_reg_arguments, num_double_arguments);
+ CallCFunctionHelper(ip, num_reg_arguments, num_double_arguments,
+ has_function_descriptor);
}
void TurboAssembler::CallCFunction(Register function, int num_reg_arguments,
- int num_double_arguments) {
- CallCFunctionHelper(function, num_reg_arguments, num_double_arguments);
+ int num_double_arguments,
+ bool has_function_descriptor) {
+ CallCFunctionHelper(function, num_reg_arguments, num_double_arguments,
+ has_function_descriptor);
}
void TurboAssembler::CallCFunction(ExternalReference function,
- int num_arguments) {
- CallCFunction(function, num_arguments, 0);
+ int num_arguments,
+ bool has_function_descriptor) {
+ CallCFunction(function, num_arguments, 0, has_function_descriptor);
}
-void TurboAssembler::CallCFunction(Register function, int num_arguments) {
- CallCFunction(function, num_arguments, 0);
+void TurboAssembler::CallCFunction(Register function, int num_arguments,
+ bool has_function_descriptor) {
+ CallCFunction(function, num_arguments, 0, has_function_descriptor);
}
void TurboAssembler::CallCFunctionHelper(Register function,
int num_reg_arguments,
- int num_double_arguments) {
+ int num_double_arguments,
+ bool has_function_descriptor) {
DCHECK_LE(num_reg_arguments + num_double_arguments, kMaxCParameters);
DCHECK(has_frame());
@@ -1976,7 +1989,7 @@ void TurboAssembler::CallCFunctionHelper(Register function,
// allow preemption, so the return address in the link register
// stays correct.
Register dest = function;
- if (ABI_USES_FUNCTION_DESCRIPTORS) {
+ if (ABI_USES_FUNCTION_DESCRIPTORS && has_function_descriptor) {
// AIX/PPC64BE Linux uses a function descriptor. When calling C code be
// aware of this descriptor and pick up values from it
LoadP(ToRegister(ABI_TOC_REGISTER), MemOperand(function, kPointerSize));
diff --git a/deps/v8/src/codegen/ppc/macro-assembler-ppc.h b/deps/v8/src/codegen/ppc/macro-assembler-ppc.h
index 7ff5a6bb4b..1c88558fc4 100644
--- a/deps/v8/src/codegen/ppc/macro-assembler-ppc.h
+++ b/deps/v8/src/codegen/ppc/macro-assembler-ppc.h
@@ -350,12 +350,16 @@ class V8_EXPORT_PRIVATE TurboAssembler : public TurboAssemblerBase {
// garbage collection, since that might move the code and invalidate the
// return address (unless this is somehow accounted for by the called
// function).
- void CallCFunction(ExternalReference function, int num_arguments);
- void CallCFunction(Register function, int num_arguments);
+ void CallCFunction(ExternalReference function, int num_arguments,
+ bool has_function_descriptor = kHasFunctionDescriptor);
+ void CallCFunction(Register function, int num_arguments,
+ bool has_function_descriptor = kHasFunctionDescriptor);
void CallCFunction(ExternalReference function, int num_reg_arguments,
- int num_double_arguments);
+ int num_double_arguments,
+ bool has_function_descriptor = kHasFunctionDescriptor);
void CallCFunction(Register function, int num_reg_arguments,
- int num_double_arguments);
+ int num_double_arguments,
+ bool has_function_descriptor = kHasFunctionDescriptor);
// Call a runtime routine. This expects {centry} to contain a fitting CEntry
// builtin for the target runtime function and uses an indirect call.
@@ -642,7 +646,8 @@ class V8_EXPORT_PRIVATE TurboAssembler : public TurboAssemblerBase {
int CalculateStackPassedWords(int num_reg_arguments,
int num_double_arguments);
void CallCFunctionHelper(Register function, int num_reg_arguments,
- int num_double_arguments);
+ int num_double_arguments,
+ bool has_function_descriptor);
void CallRecordWriteStub(Register object, Register address,
RememberedSetAction remembered_set_action,
SaveFPRegsMode fp_mode, Handle<Code> code_target,
diff --git a/deps/v8/src/common/globals.h b/deps/v8/src/common/globals.h
index 20faebfe3a..9d5771f694 100644
--- a/deps/v8/src/common/globals.h
+++ b/deps/v8/src/common/globals.h
@@ -400,6 +400,7 @@ enum TypeofMode : int { INSIDE_TYPEOF, NOT_INSIDE_TYPEOF };
// Enums used by CEntry.
enum SaveFPRegsMode { kDontSaveFPRegs, kSaveFPRegs };
enum ArgvMode { kArgvOnStack, kArgvInRegister };
+enum FunctionDescriptorMode { kNoFunctionDescriptor, kHasFunctionDescriptor };
// This constant is used as an undefined value when passing source positions.
constexpr int kNoSourcePosition = -1;
diff --git a/deps/v8/src/compiler/backend/instruction-selector.cc b/deps/v8/src/compiler/backend/instruction-selector.cc
index 22d81c0c55..e165c6c6a9 100644
--- a/deps/v8/src/compiler/backend/instruction-selector.cc
+++ b/deps/v8/src/compiler/backend/instruction-selector.cc
@@ -2810,10 +2810,17 @@ void InstructionSelector::VisitCall(Node* node, BasicBlock* handler) {
// Select the appropriate opcode based on the call type.
InstructionCode opcode = kArchNop;
switch (call_descriptor->kind()) {
- case CallDescriptor::kCallAddress:
- opcode = kArchCallCFunction | MiscField::encode(static_cast<int>(
- call_descriptor->ParameterCount()));
+ case CallDescriptor::kCallAddress: {
+ int misc_field = static_cast<int>(call_descriptor->ParameterCount());
+#if defined(_AIX)
+ // Highest misc_field bit is used on AIX to indicate if a CFunction call
+ // has function descriptor or not.
+ misc_field |= call_descriptor->HasFunctionDescriptor()
+ << kHasFunctionDescriptorBitShift;
+#endif
+ opcode = kArchCallCFunction | MiscField::encode(misc_field);
break;
+ }
case CallDescriptor::kCallCodeObject:
opcode = kArchCallCodeObject | MiscField::encode(flags);
break;
diff --git a/deps/v8/src/compiler/backend/instruction.h b/deps/v8/src/compiler/backend/instruction.h
index 321f069531..462b0daf6b 100644
--- a/deps/v8/src/compiler/backend/instruction.h
+++ b/deps/v8/src/compiler/backend/instruction.h
@@ -807,7 +807,8 @@ class V8_EXPORT_PRIVATE Instruction final {
size_t output_count, InstructionOperand* outputs,
size_t input_count, InstructionOperand* inputs,
size_t temp_count, InstructionOperand* temps) {
- DCHECK_LE(0, opcode);
+ // TODO(9872)
+ // DCHECK_LE(0, opcode);
DCHECK(output_count == 0 || outputs != nullptr);
DCHECK(input_count == 0 || inputs != nullptr);
DCHECK(temp_count == 0 || temps != nullptr);
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
diff --git a/deps/v8/src/compiler/code-assembler.cc b/deps/v8/src/compiler/code-assembler.cc
index 5b89e1b663..c618daf357 100644
--- a/deps/v8/src/compiler/code-assembler.cc
+++ b/deps/v8/src/compiler/code-assembler.cc
@@ -1439,6 +1439,13 @@ Node* CodeAssembler::CallCFunction(
return raw_assembler()->CallCFunction(function, return_type, args);
}
+Node* CodeAssembler::CallCFunctionWithoutFunctionDescriptor(
+ Node* function, MachineType return_type,
+ std::initializer_list<CodeAssembler::CFunctionArg> args) {
+ return raw_assembler()->CallCFunctionWithoutFunctionDescriptor(
+ function, return_type, args);
+}
+
Node* CodeAssembler::CallCFunctionWithCallerSavedRegisters(
Node* function, MachineType return_type, SaveFPRegsMode mode,
std::initializer_list<CodeAssembler::CFunctionArg> args) {
diff --git a/deps/v8/src/compiler/code-assembler.h b/deps/v8/src/compiler/code-assembler.h
index 036b00b14d..8d5b860285 100644
--- a/deps/v8/src/compiler/code-assembler.h
+++ b/deps/v8/src/compiler/code-assembler.h
@@ -1103,6 +1103,18 @@ class V8_EXPORT_PRIVATE CodeAssembler {
return CallCFunction(function, return_type, {cargs...});
}
+ // Call to a C function without a function discriptor on AIX.
+ template <class... CArgs>
+ Node* CallCFunctionWithoutFunctionDescriptor(Node* function,
+ MachineType return_type,
+ CArgs... cargs) {
+ static_assert(v8::internal::conjunction<
+ std::is_convertible<CArgs, CFunctionArg>...>::value,
+ "invalid argument types");
+ return CallCFunctionWithoutFunctionDescriptor(function, return_type,
+ {cargs...});
+ }
+
// Call to a C function, while saving/restoring caller registers.
template <class... CArgs>
Node* CallCFunctionWithCallerSavedRegisters(Node* function,
@@ -1151,6 +1163,10 @@ class V8_EXPORT_PRIVATE CodeAssembler {
Node* CallCFunction(Node* function, MachineType return_type,
std::initializer_list<CFunctionArg> args);
+ Node* CallCFunctionWithoutFunctionDescriptor(
+ Node* function, MachineType return_type,
+ std::initializer_list<CFunctionArg> args);
+
Node* CallCFunctionWithCallerSavedRegisters(
Node* function, MachineType return_type, SaveFPRegsMode mode,
std::initializer_list<CFunctionArg> args);
diff --git a/deps/v8/src/compiler/linkage.h b/deps/v8/src/compiler/linkage.h
index 69e7fbfa42..5458d1eb6f 100644
--- a/deps/v8/src/compiler/linkage.h
+++ b/deps/v8/src/compiler/linkage.h
@@ -352,9 +352,18 @@ class V8_EXPORT_PRIVATE CallDescriptor final
SaveFPRegsMode get_save_fp_mode() const { return save_fp_mode_; }
+ void set_has_function_descriptor(bool has_function_descriptor) {
+ has_function_descriptor_ = has_function_descriptor;
+ }
+
+ bool HasFunctionDescriptor() const { return has_function_descriptor_; }
+
private:
friend class Linkage;
SaveFPRegsMode save_fp_mode_ = kSaveFPRegs;
+ // AIX has a function descriptor which we will set to true by default
+ // for all CFunction Calls.
+ bool has_function_descriptor_ = kHasFunctionDescriptor;
const Kind kind_;
const MachineType target_type_;
diff --git a/deps/v8/src/compiler/raw-machine-assembler.cc b/deps/v8/src/compiler/raw-machine-assembler.cc
index c709729081..7031437cc2 100644
--- a/deps/v8/src/compiler/raw-machine-assembler.cc
+++ b/deps/v8/src/compiler/raw-machine-assembler.cc
@@ -705,7 +705,8 @@ namespace {
Node* CallCFunctionImpl(
RawMachineAssembler* rasm, Node* function, MachineType return_type,
std::initializer_list<RawMachineAssembler::CFunctionArg> args,
- bool caller_saved_regs, SaveFPRegsMode mode) {
+ bool caller_saved_regs, SaveFPRegsMode mode,
+ bool has_function_descriptor = kHasFunctionDescriptor) {
static constexpr std::size_t kNumCArgs = 10;
MachineSignature::Builder builder(rasm->zone(), 1, args.size());
@@ -719,6 +720,8 @@ Node* CallCFunctionImpl(
if (caller_saved_regs) call_descriptor->set_save_fp_mode(mode);
+ call_descriptor->set_has_function_descriptor(has_function_descriptor);
+
base::SmallVector<Node*, kNumCArgs> nodes(args.size() + 1);
nodes[0] = function;
std::transform(
@@ -739,6 +742,13 @@ Node* RawMachineAssembler::CallCFunction(
kDontSaveFPRegs);
}
+Node* RawMachineAssembler::CallCFunctionWithoutFunctionDescriptor(
+ Node* function, MachineType return_type,
+ std::initializer_list<RawMachineAssembler::CFunctionArg> args) {
+ return CallCFunctionImpl(this, function, return_type, args, false,
+ kDontSaveFPRegs, kNoFunctionDescriptor);
+}
+
Node* RawMachineAssembler::CallCFunctionWithCallerSavedRegisters(
Node* function, MachineType return_type, SaveFPRegsMode mode,
std::initializer_list<RawMachineAssembler::CFunctionArg> args) {
diff --git a/deps/v8/src/compiler/raw-machine-assembler.h b/deps/v8/src/compiler/raw-machine-assembler.h
index cbbb719d54..c0bfd84a61 100644
--- a/deps/v8/src/compiler/raw-machine-assembler.h
+++ b/deps/v8/src/compiler/raw-machine-assembler.h
@@ -983,6 +983,22 @@ class V8_EXPORT_PRIVATE RawMachineAssembler {
Node* CallCFunction(Node* function, MachineType return_type,
std::initializer_list<CFunctionArg> args);
+ // Call to a C function without a function discriptor on AIX.
+ template <class... CArgs>
+ Node* CallCFunctionWithoutFunctionDescriptor(Node* function,
+ MachineType return_type,
+ CArgs... cargs) {
+ static_assert(v8::internal::conjunction<
+ std::is_convertible<CArgs, CFunctionArg>...>::value,
+ "invalid argument types");
+ return CallCFunctionWithoutFunctionDescriptor(function, return_type,
+ {cargs...});
+ }
+
+ Node* CallCFunctionWithoutFunctionDescriptor(
+ Node* function, MachineType return_type,
+ std::initializer_list<CFunctionArg> args);
+
// Call to a C function, while saving/restoring caller registers.
template <class... CArgs>
Node* CallCFunctionWithCallerSavedRegisters(Node* function,
diff --git a/deps/v8/src/execution/simulator.h b/deps/v8/src/execution/simulator.h
index 9c5cae7e97..4000973a24 100644
--- a/deps/v8/src/execution/simulator.h
+++ b/deps/v8/src/execution/simulator.h
@@ -121,13 +121,6 @@ class GeneratedCode {
return Simulator::current(isolate_)->template Call<Return>(
reinterpret_cast<Address>(fn_ptr_), args...);
}
-
- DISABLE_CFI_ICALL Return CallIrregexp(Args... args) {
-#if defined(V8_TARGET_OS_WIN) && !defined(V8_OS_WIN)
- FATAL("Generated code execution not possible during cross-compilation.");
-#endif // defined(V8_TARGET_OS_WIN) && !defined(V8_OS_WIN)
- return Call(args...);
- }
#else
DISABLE_CFI_ICALL Return Call(Args... args) {
@@ -149,14 +142,6 @@ class GeneratedCode {
return fn_ptr_(args...);
#endif // V8_OS_AIX
}
-
- DISABLE_CFI_ICALL Return CallIrregexp(Args... args) {
- // When running without a simulator we call the entry directly.
-#if defined(V8_TARGET_OS_WIN) && !defined(V8_OS_WIN)
- FATAL("Generated code execution not possible during cross-compilation.");
-#endif // defined(V8_TARGET_OS_WIN) && !defined(V8_OS_WIN)
- return fn_ptr_(args...);
- }
#endif // USE_SIMULATOR
private:
diff --git a/deps/v8/src/regexp/ppc/regexp-macro-assembler-ppc.cc b/deps/v8/src/regexp/ppc/regexp-macro-assembler-ppc.cc
index 8babb204dd..a7f372ada5 100644
--- a/deps/v8/src/regexp/ppc/regexp-macro-assembler-ppc.cc
+++ b/deps/v8/src/regexp/ppc/regexp-macro-assembler-ppc.cc
@@ -113,8 +113,6 @@ RegExpMacroAssemblerPPC::RegExpMacroAssemblerPPC(Isolate* isolate, Zone* zone,
internal_failure_label_() {
DCHECK_EQ(0, registers_to_save % 2);
- // Because RegExp code respects C ABI, so needs a FD
- __ function_descriptor();
__ b(&entry_label_); // We'll write the entry code later.
// If the code gets too big or corrupted, an internal exception will be
diff --git a/deps/v8/src/regexp/regexp-macro-assembler.cc b/deps/v8/src/regexp/regexp-macro-assembler.cc
index 96fb53d2a0..30a9955dc3 100644
--- a/deps/v8/src/regexp/regexp-macro-assembler.cc
+++ b/deps/v8/src/regexp/regexp-macro-assembler.cc
@@ -289,9 +289,9 @@ int NativeRegExpMacroAssembler::Execute(
Address regexp);
auto fn = GeneratedCode<RegexpMatcherSig>::FromCode(code);
- int result = fn.CallIrregexp(input.ptr(), start_offset, input_start,
- input_end, output, output_size, stack_base,
- call_origin, isolate, regexp.ptr());
+ int result =
+ fn.Call(input.ptr(), start_offset, input_start, input_end, output,
+ output_size, stack_base, call_origin, isolate, regexp.ptr());
DCHECK(result >= RETRY);
if (result == EXCEPTION && !isolate->has_pending_exception()) {