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Issue #2313 - Implement WebAssembly sign extension opcodes. https://bugzilla.mozilla.org/show_bug.cgi?id=1389461

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This commit is contained in:
Brian Smith 2023-09-22 13:23:36 -05:00 • committed by roytam1
commit 61b73a894a
37 changed files with 444 additions and 33 deletions
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60
js/src/jit/MIR.h
View file

@ -4973,7 +4973,7 @@ class MUrsh : public MShiftInstruction
ALLOW_CLONE(MUrsh)
};
class MSignExtend
class MSignExtendInt32
: public MUnaryInstruction,
public NoTypePolicy::Data
{
@ -4986,7 +4986,7 @@ class MSignExtend
private:
Mode mode_;
MSignExtend(MDefinition* op, Mode mode)
MSignExtendInt32(MDefinition* op, Mode mode)
: MUnaryInstruction(op), mode_(mode)
{
setResultType(MIRType::Int32);
@ -4994,17 +4994,67 @@ class MSignExtend
}
public:
INSTRUCTION_HEADER(SignExtend)
INSTRUCTION_HEADER(SignExtendInt32)
TRIVIAL_NEW_WRAPPERS
Mode mode() { return mode_; }
Mode mode() const { return mode_; }
MDefinition* foldsTo(TempAllocator& alloc) override;
bool congruentTo(const MDefinition* ins) const override {
if (!congruentIfOperandsEqual(ins))
return false;
return ins->isSignExtendInt32() && ins->toSignExtendInt32()->mode_ == mode_;
}
AliasSet getAliasSet() const override {
return AliasSet::None();
}
MOZ_MUST_USE bool writeRecoverData(CompactBufferWriter& writer) const override;
bool canRecoverOnBailout() const override {
return true;
}
ALLOW_CLONE(MSignExtend)
ALLOW_CLONE(MSignExtendInt32)
};
class MSignExtendInt64
: public MUnaryInstruction,
public NoTypePolicy::Data
{
public:
enum Mode {
Byte,
Half,
Word
};
private:
Mode mode_;
MSignExtendInt64(MDefinition* op, Mode mode)
: MUnaryInstruction(op), mode_(mode)
{
setResultType(MIRType::Int64);
setMovable();
}
public:
INSTRUCTION_HEADER(SignExtendInt64)
TRIVIAL_NEW_WRAPPERS
Mode mode() const { return mode_; }
MDefinition* foldsTo(TempAllocator& alloc) override;
bool congruentTo(const MDefinition* ins) const override {
if (!congruentIfOperandsEqual(ins))
return false;
return ins->isSignExtendInt64() && ins->toSignExtendInt64()->mode_ == mode_;
}
AliasSet getAliasSet() const override {
return AliasSet::None();
}
ALLOW_CLONE(MSignExtendInt64)
};
class MBinaryArithInstruction