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s390x: [baseline] implement Jump pt.1

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Change-Id: Ie2815722ae1507cc5e2e7d510148063df3ebbf32
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3302848
Reviewed-by: Milad Fa <mfarazma@redhat.com>
Commit-Queue: Junliang Yan <junyan@redhat.com>
Cr-Commit-Position: refs/heads/main@{#78094}
This commit is contained in:
Junliang Yan 2021-11-25 13:49:06 -05:00 committed by V8 LUCI CQ
parent 956d32e3f9
commit 28a83ead48
1 changed files with 97 additions and 42 deletions
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137
src/baseline/s390/baseline-assembler-s390-inl.h
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@ -13,78 +13,134 @@ namespace v8 {
namespace internal {
namespace baseline {
namespace detail {
static constexpr Register kScratchRegisters[] = {r8, r9, ip, r1};
static constexpr int kNumScratchRegisters = arraysize(kScratchRegisters);
#ifdef DEBUG
inline bool Clobbers(Register target, MemOperand op) {
return op.rb() == target || op.rx() == target;
}
#endif
} // namespace detail
class BaselineAssembler::ScratchRegisterScope {
public:
explicit ScratchRegisterScope(BaselineAssembler* assembler)
: assembler_(assembler),
prev_scope_(assembler->scratch_register_scope_),
wrapped_scope_(assembler->masm()) {
if (!assembler_->scratch_register_scope_) {
// If we haven't opened a scratch scope yet, for the first one add a
// couple of extra registers.
DCHECK(wrapped_scope_.CanAcquire());
wrapped_scope_.Include(r8, r9);
wrapped_scope_.Include(kInterpreterBytecodeOffsetRegister);
}
registers_used_(prev_scope_ == nullptr ? 0
: prev_scope_->registers_used_) {
assembler_->scratch_register_scope_ = this;
}
~ScratchRegisterScope() { assembler_->scratch_register_scope_ = prev_scope_; }
Register AcquireScratch() { return wrapped_scope_.Acquire(); }
Register AcquireScratch() {
DCHECK_LT(registers_used_, detail::kNumScratchRegisters);
return detail::kScratchRegisters[registers_used_++];
}
private:
BaselineAssembler* assembler_;
ScratchRegisterScope* prev_scope_;
UseScratchRegisterScope wrapped_scope_;
int registers_used_;
};
// TODO(v8:11429,leszeks): Unify condition names in the MacroAssembler.
enum class Condition : uint32_t {
kEqual = static_cast<uint32_t>(eq),
kNotEqual = static_cast<uint32_t>(ne),
kEqual,
kNotEqual,
kLessThan = static_cast<uint32_t>(lt),
kGreaterThan = static_cast<uint32_t>(gt),
kLessThanEqual = static_cast<uint32_t>(le),
kGreaterThanEqual = static_cast<uint32_t>(ge),
kLessThan,
kGreaterThan,
kLessThanEqual,
kGreaterThanEqual,
kUnsignedLessThan = static_cast<uint32_t>(lo),
kUnsignedGreaterThan = static_cast<uint32_t>(hi),
kUnsignedLessThanEqual = static_cast<uint32_t>(ls),
kUnsignedGreaterThanEqual = static_cast<uint32_t>(hs),
kUnsignedLessThan,
kUnsignedGreaterThan,
kUnsignedLessThanEqual,
kUnsignedGreaterThanEqual,
kOverflow = static_cast<uint32_t>(vs),
kNoOverflow = static_cast<uint32_t>(vc),
kOverflow,
kNoOverflow,
kZero = static_cast<uint32_t>(eq),
kNotZero = static_cast<uint32_t>(ne),
kZero,
kNotZero
};
inline internal::Condition AsMasmCondition(Condition cond) {
UNIMPLEMENTED();
return static_cast<internal::Condition>(cond);
STATIC_ASSERT(sizeof(internal::Condition) == sizeof(Condition));
switch (cond) {
case Condition::kEqual:
return eq;
case Condition::kNotEqual:
return ne;
case Condition::kLessThan:
return lt;
case Condition::kGreaterThan:
return gt;
case Condition::kLessThanEqual:
return le;
case Condition::kGreaterThanEqual:
return ge;
case Condition::kUnsignedLessThan:
return lt;
case Condition::kUnsignedGreaterThan:
return gt;
case Condition::kUnsignedLessThanEqual:
return le;
case Condition::kUnsignedGreaterThanEqual:
return ge;
case Condition::kOverflow:
return overflow;
case Condition::kNoOverflow:
return nooverflow;
case Condition::kZero:
return eq;
case Condition::kNotZero:
return ne;
default:
UNREACHABLE();
}
}
namespace detail {
inline bool IsSignedCondition(Condition cond) {
switch (cond) {
case Condition::kEqual:
case Condition::kNotEqual:
case Condition::kLessThan:
case Condition::kGreaterThan:
case Condition::kLessThanEqual:
case Condition::kGreaterThanEqual:
case Condition::kOverflow:
case Condition::kNoOverflow:
case Condition::kZero:
case Condition::kNotZero:
return true;
#ifdef DEBUG
inline bool Clobbers(Register target, MemOperand op) {
UNIMPLEMENTED();
case Condition::kUnsignedLessThan:
case Condition::kUnsignedGreaterThan:
case Condition::kUnsignedLessThanEqual:
case Condition::kUnsignedGreaterThanEqual:
return false;
}
#endif
} // namespace detail
default:
UNREACHABLE();
}
}
#define __ masm_->
MemOperand BaselineAssembler::RegisterFrameOperand(
interpreter::Register interpreter_register) {
UNIMPLEMENTED();
return MemOperand(fp, interpreter_register.ToOperand() * kSystemPointerSize);
}
MemOperand BaselineAssembler::FeedbackVectorOperand() {
UNIMPLEMENTED();
return MemOperand(fp, BaselineFrameConstants::kFeedbackVectorFromFp);
}
@ -93,27 +149,26 @@ void BaselineAssembler::BindWithoutJumpTarget(Label* label) { __ bind(label); }
void BaselineAssembler::JumpTarget() {
// NOP on arm.
UNIMPLEMENTED();
}
void BaselineAssembler::Jump(Label* target, Label::Distance distance) {
UNIMPLEMENTED();
__ b(target);
}
void BaselineAssembler::JumpIfRoot(Register value, RootIndex index,
Label* target, Label::Distance) {
UNIMPLEMENTED();
__ JumpIfRoot(value, index, target);
}
void BaselineAssembler::JumpIfNotRoot(Register value, RootIndex index,
Label* target, Label::Distance) {
UNIMPLEMENTED();
__ JumpIfNotRoot(value, index, target);
}
void BaselineAssembler::JumpIfSmi(Register value, Label* target,
Label::Distance) {
UNIMPLEMENTED();
__ JumpIfSmi(value, target);
}
void BaselineAssembler::JumpIfNotSmi(Register value, Label* target,
Label::Distance) {
UNIMPLEMENTED();
__ JumpIfNotSmi(value, target);
}
void BaselineAssembler::CallBuiltin(Builtin builtin) { UNIMPLEMENTED(); }