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Bug 1424978 - IonMonkey: MIPS64: Fix unboxNonDouble for Int32

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Tag: #1542
This commit is contained in:
Jiaxun Yang 2020-05-12 12:40:12 +08:00 • committed by Roy Tam
commit 73011b18fe
1 changed files with 30 additions and 0 deletions
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30
js/src/jit/mips64/MacroAssembler-mips64.cpp
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@ -1366,22 +1366,52 @@ MacroAssemblerMIPS64Compat::testUndefinedSet(Condition cond, const ValueOperand&
void
MacroAssemblerMIPS64Compat::unboxNonDouble(const ValueOperand& operand, Register dest)
{
Label isInt32, done;
Register tag = splitTagForTest(operand);
asMasm().branchTestInt32(Assembler::Equal, tag, &isInt32);
ma_dext(dest, operand.valueReg(), Imm32(0), Imm32(JSVAL_TAG_SHIFT));
jump(&done);
bind(&isInt32);
ma_sll(dest, operand.valueReg(), Imm32(0));
bind(&done);
}
void
MacroAssemblerMIPS64Compat::unboxNonDouble(const Address& src, Register dest)
{
Label isInt32, done;
loadPtr(Address(src.base, src.offset), dest);
splitTag(dest, SecondScratchReg);
asMasm().branchTestInt32(Assembler::Equal, SecondScratchReg, &isInt32);
ma_dext(dest, dest, Imm32(0), Imm32(JSVAL_TAG_SHIFT));
jump(&done);
bind(&isInt32);
ma_sll(dest, dest, Imm32(0));
bind(&done);
}
void
MacroAssemblerMIPS64Compat::unboxNonDouble(const BaseIndex& src, Register dest)
{
Label isInt32, done;
computeScaledAddress(src, SecondScratchReg);
loadPtr(Address(SecondScratchReg, src.offset), dest);
splitTag(dest, SecondScratchReg);
asMasm().branchTestInt32(Assembler::Equal, SecondScratchReg, &isInt32);
ma_dext(dest, dest, Imm32(0), Imm32(JSVAL_TAG_SHIFT));
jump(&done);
bind(&isInt32);
ma_sll(dest, dest, Imm32(0));
bind(&done);
}
void