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Issue #2308 & #1240 Follow-up - Fill in missing JSOP_INC/DEC cases for Doubles in Ion.

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Brian Smith 2023-09-18 01:10:07 -05:00 • committed by roytam1
commit 8f44226445
1 changed files with 20 additions and 6 deletions
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26
js/src/jit/SharedIC.cpp
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@ -1570,12 +1570,8 @@ ICUnaryArith_Double::Compiler::generateStubCode(MacroAssembler& masm)
Label failure; Label failure;
masm.ensureDouble(R0, FloatReg0, &failure); masm.ensureDouble(R0, FloatReg0, &failure);
MOZ_ASSERT(op == JSOP_NEG || op == JSOP_BITNOT); switch (op) {
case JSOP_BITNOT: {
if (op == JSOP_NEG) {
masm.negateDouble(FloatReg0);
masm.boxDouble(FloatReg0, R0);
} else {
// Truncate the double to an int32. // Truncate the double to an int32.
Register scratchReg = R1.scratchReg(); Register scratchReg = R1.scratchReg();
@ -1593,6 +1589,24 @@ ICUnaryArith_Double::Compiler::generateStubCode(MacroAssembler& masm)
masm.bind(&doneTruncate); masm.bind(&doneTruncate);
masm.not32(scratchReg); masm.not32(scratchReg);
masm.tagValue(JSVAL_TYPE_INT32, scratchReg, R0); masm.tagValue(JSVAL_TYPE_INT32, scratchReg, R0);
break;
}
case JSOP_NEG:
masm.negateDouble(FloatReg0);
masm.boxDouble(FloatReg0, R0);
break;
case JSOP_INC:
case JSOP_DEC:
masm.loadConstantDouble(1.0, ScratchDoubleReg);
if (op == JSOP_INC) {
masm.addDouble(ScratchDoubleReg, FloatReg0);
} else {
masm.subDouble(ScratchDoubleReg, FloatReg0);
}
masm.boxDouble(FloatReg0, R0);
break;
default:
MOZ_CRASH("Unexpected op");
} }
EmitReturnFromIC(masm); EmitReturnFromIC(masm);