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deps: V8: backport 239898ef8c77 #39827

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deps: V8: backport 239898ef8c77 #39827

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2 changes: 1 addition & 1 deletion common.gypi
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Original file line number Diff line number Diff line change
Expand Up @@ -36,7 +36,7 @@

# Reset this number to 0 on major V8 upgrades.
# Increment by one for each non-official patch applied to deps/v8.
'v8_embedder_string': '-node.19',
'v8_embedder_string': '-node.20',

##### V8 defaults for Node.js #####

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14 changes: 7 additions & 7 deletions deps/v8/src/codegen/riscv64/assembler-riscv64.cc
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Expand Up @@ -461,7 +461,7 @@ static inline Instr SetJalrOffset(int32_t offset, Instr instr) {
instr &= ~kImm12Mask;
int32_t imm12 = offset << kImm12Shift;
DCHECK(Assembler::IsJalr(instr | (imm12 & kImm12Mask)));
DCHECK(Assembler::JalrOffset(instr | (imm12 & kImm12Mask)) == offset);
DCHECK_EQ(Assembler::JalrOffset(instr | (imm12 & kImm12Mask)), offset);
return instr | (imm12 & kImm12Mask);
}

Expand Down Expand Up @@ -702,7 +702,7 @@ int Assembler::BrachlongOffset(Instr auipc, Instr instr_I) {
InstructionBase::kIType);
DCHECK(IsAuipc(auipc));
int32_t imm_auipc = AuipcOffset(auipc);
int32_t imm12 = (instr_I & kImm12Mask) >> 20;
int32_t imm12 = static_cast<int32_t>(instr_I & kImm12Mask) >> 20;
int32_t offset = imm12 + imm_auipc;
return offset;
}
Expand All @@ -723,19 +723,19 @@ int Assembler::PatchBranchlongOffset(Address pc, Instr instr_auipc,

int Assembler::LdOffset(Instr instr) {
DCHECK(IsLd(instr));
int32_t imm12 = (instr & kImm12Mask) >> 20;
int32_t imm12 = static_cast<int32_t>(instr & kImm12Mask) >> 20;
return imm12;
}

int Assembler::JalrOffset(Instr instr) {
DCHECK(IsJalr(instr));
int32_t imm12 = (instr & kImm12Mask) >> 20;
int32_t imm12 = static_cast<int32_t>(instr & kImm12Mask) >> 20;
return imm12;
}

int Assembler::AuipcOffset(Instr instr) {
DCHECK(IsAuipc(instr));
int32_t imm20 = instr & kImm20Mask;
int32_t imm20 = static_cast<int32_t>(instr & kImm20Mask);
return imm20;
}
// We have to use a temporary register for things that can be relocated even
Expand Down Expand Up @@ -1277,7 +1277,7 @@ void Assembler::label_at_put(Label* L, int at_offset) {
DCHECK_EQ(imm18 & 3, 0);
int32_t imm16 = imm18 >> 2;
DCHECK(is_int16(imm16));
instr_at_put(at_offset, (imm16 & kImm16Mask));
instr_at_put(at_offset, (int32_t)(imm16 & kImm16Mask));
} else {
target_pos = kEndOfJumpChain;
instr_at_put(at_offset, target_pos);
Expand Down Expand Up @@ -2692,7 +2692,7 @@ void Assembler::GrowBuffer() {
reloc_info_writer.last_pc() + pc_delta);

// Relocate runtime entries.
Vector<byte> instructions{buffer_start_, pc_offset()};
Vector<byte> instructions{buffer_start_, static_cast<size_t>(pc_offset())};
Vector<const byte> reloc_info{reloc_info_writer.pos(), reloc_size};
for (RelocIterator it(instructions, reloc_info, 0); !it.done(); it.next()) {
RelocInfo::Mode rmode = it.rinfo()->rmode();
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72 changes: 36 additions & 36 deletions deps/v8/src/codegen/riscv64/constants-riscv64.h
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Expand Up @@ -215,54 +215,54 @@ const int kRvcFunct6Shift = 10;
const int kRvcFunct6Bits = 6;

// RISCV Instruction bit masks
const int kBaseOpcodeMask = ((1 << kBaseOpcodeBits) - 1) << kBaseOpcodeShift;
const int kFunct3Mask = ((1 << kFunct3Bits) - 1) << kFunct3Shift;
const int kFunct5Mask = ((1 << kFunct5Bits) - 1) << kFunct5Shift;
const int kFunct7Mask = ((1 << kFunct7Bits) - 1) << kFunct7Shift;
const int kFunct2Mask = 0b11 << kFunct7Shift;
const int kRTypeMask = kBaseOpcodeMask | kFunct3Mask | kFunct7Mask;
const int kRATypeMask = kBaseOpcodeMask | kFunct3Mask | kFunct5Mask;
const int kRFPTypeMask = kBaseOpcodeMask | kFunct7Mask;
const int kR4TypeMask = kBaseOpcodeMask | kFunct3Mask | kFunct2Mask;
const int kITypeMask = kBaseOpcodeMask | kFunct3Mask;
const int kSTypeMask = kBaseOpcodeMask | kFunct3Mask;
const int kBTypeMask = kBaseOpcodeMask | kFunct3Mask;
const int kUTypeMask = kBaseOpcodeMask;
const int kJTypeMask = kBaseOpcodeMask;
const int kRs1FieldMask = ((1 << kRs1Bits) - 1) << kRs1Shift;
const int kRs2FieldMask = ((1 << kRs2Bits) - 1) << kRs2Shift;
const int kRs3FieldMask = ((1 << kRs3Bits) - 1) << kRs3Shift;
const int kRdFieldMask = ((1 << kRdBits) - 1) << kRdShift;
const int kBImm12Mask = kFunct7Mask | kRdFieldMask;
const int kImm20Mask = ((1 << kImm20Bits) - 1) << kImm20Shift;
const int kImm12Mask = ((1 << kImm12Bits) - 1) << kImm12Shift;
const int kImm11Mask = ((1 << kImm11Bits) - 1) << kImm11Shift;
const int kImm31_12Mask = ((1 << 20) - 1) << 12;
const int kImm19_0Mask = ((1 << 20) - 1);
const int kRvcOpcodeMask =
const uint32_t kBaseOpcodeMask = ((1 << kBaseOpcodeBits) - 1) << kBaseOpcodeShift;
const uint32_t kFunct3Mask = ((1 << kFunct3Bits) - 1) << kFunct3Shift;
const uint32_t kFunct5Mask = ((1 << kFunct5Bits) - 1) << kFunct5Shift;
const uint32_t kFunct7Mask = ((1 << kFunct7Bits) - 1) << kFunct7Shift;
const uint32_t kFunct2Mask = 0b11 << kFunct7Shift;
const uint32_t kRTypeMask = kBaseOpcodeMask | kFunct3Mask | kFunct7Mask;
const uint32_t kRATypeMask = kBaseOpcodeMask | kFunct3Mask | kFunct5Mask;
const uint32_t kRFPTypeMask = kBaseOpcodeMask | kFunct7Mask;
const uint32_t kR4TypeMask = kBaseOpcodeMask | kFunct3Mask | kFunct2Mask;
const uint32_t kITypeMask = kBaseOpcodeMask | kFunct3Mask;
const uint32_t kSTypeMask = kBaseOpcodeMask | kFunct3Mask;
const uint32_t kBTypeMask = kBaseOpcodeMask | kFunct3Mask;
const uint32_t kUTypeMask = kBaseOpcodeMask;
const uint32_t kJTypeMask = kBaseOpcodeMask;
const uint32_t kRs1FieldMask = ((1 << kRs1Bits) - 1) << kRs1Shift;
const uint32_t kRs2FieldMask = ((1 << kRs2Bits) - 1) << kRs2Shift;
const uint32_t kRs3FieldMask = ((1 << kRs3Bits) - 1) << kRs3Shift;
const uint32_t kRdFieldMask = ((1 << kRdBits) - 1) << kRdShift;
const uint32_t kBImm12Mask = kFunct7Mask | kRdFieldMask;
const uint32_t kImm20Mask = ((1 << kImm20Bits) - 1) << kImm20Shift;
const uint32_t kImm12Mask = ((1 << kImm12Bits) - 1) << kImm12Shift;
const uint32_t kImm11Mask = ((1 << kImm11Bits) - 1) << kImm11Shift;
const uint32_t kImm31_12Mask = ((1 << 20) - 1) << 12;
const uint32_t kImm19_0Mask = ((1 << 20) - 1);
const uint32_t kRvcOpcodeMask =
0b11 | (((1 << kRvcFunct3Bits) - 1) << kRvcFunct3Shift);
const int kRvcFunct3Mask = (((1 << kRvcFunct3Bits) - 1) << kRvcFunct3Shift);
const int kRvcFunct4Mask = (((1 << kRvcFunct4Bits) - 1) << kRvcFunct4Shift);
const int kRvcFunct6Mask = (((1 << kRvcFunct6Bits) - 1) << kRvcFunct6Shift);
const int kRvcFunct2Mask = (((1 << kRvcFunct2Bits) - 1) << kRvcFunct2Shift);
const int kCRTypeMask = kRvcOpcodeMask | kRvcFunct4Mask;
const int kCSTypeMask = kRvcOpcodeMask | kRvcFunct6Mask;
const int kCATypeMask = kRvcOpcodeMask | kRvcFunct6Mask | kRvcFunct2Mask;
const uint32_t kRvcFunct3Mask = (((1 << kRvcFunct3Bits) - 1) << kRvcFunct3Shift);
const uint32_t kRvcFunct4Mask = (((1 << kRvcFunct4Bits) - 1) << kRvcFunct4Shift);
const uint32_t kRvcFunct6Mask = (((1 << kRvcFunct6Bits) - 1) << kRvcFunct6Shift);
const uint32_t kRvcFunct2Mask = (((1 << kRvcFunct2Bits) - 1) << kRvcFunct2Shift);
const uint32_t kCRTypeMask = kRvcOpcodeMask | kRvcFunct4Mask;
const uint32_t kCSTypeMask = kRvcOpcodeMask | kRvcFunct6Mask;
const uint32_t kCATypeMask = kRvcOpcodeMask | kRvcFunct6Mask | kRvcFunct2Mask;

// RISCV CSR related bit mask and shift
const int kFcsrFlagsBits = 5;
const int kFcsrFlagsMask = (1 << kFcsrFlagsBits) - 1;
const uint32_t kFcsrFlagsMask = (1 << kFcsrFlagsBits) - 1;
const int kFcsrFrmBits = 3;
const int kFcsrFrmShift = kFcsrFlagsBits;
const int kFcsrFrmMask = ((1 << kFcsrFrmBits) - 1) << kFcsrFrmShift;
const uint32_t kFcsrFrmMask = ((1 << kFcsrFrmBits) - 1) << kFcsrFrmShift;
const int kFcsrBits = kFcsrFlagsBits + kFcsrFrmBits;
const int kFcsrMask = kFcsrFlagsMask | kFcsrFrmMask;
const uint32_t kFcsrMask = kFcsrFlagsMask | kFcsrFrmMask;

// Original MIPS constants
// TODO(RISCV): to be cleaned up
const int kImm16Shift = 0;
const int kImm16Bits = 16;
const int kImm16Mask = ((1 << kImm16Bits) - 1) << kImm16Shift;
const uint32_t kImm16Mask = ((1 << kImm16Bits) - 1) << kImm16Shift;
// end of TODO(RISCV): to be cleaned up

// ----- RISCV Base Opcodes
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2 changes: 1 addition & 1 deletion deps/v8/src/execution/riscv64/simulator-riscv64.cc
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Expand Up @@ -1842,7 +1842,7 @@ float Simulator::RoundF2FHelper(float input_val, int rmode) {
float rounded = 0;
switch (rmode) {
case RNE: { // Round to Nearest, tiest to Even
rounded = std::floorf(input_val);
rounded = floorf(input_val);
float error = input_val - rounded;

// Take care of correctly handling the range [-0.5, -0.0], which must
Expand Down