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Issue #2308 & #1240 Follow-up - Replace JSOP_POS in ++/-- with JSOP_TONUMERIC. https://bugzilla.mozilla.org/show_bug.cgi?id=1519135

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This commit is contained in:
Brian Smith 2023-09-17 12:39:03 -05:00 • committed by roytam1
commit 209d714434
28 changed files with 251 additions and 77 deletions
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17
js/src/jit/MIR.cpp
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@ -4172,6 +4172,23 @@ MResumePoint::isRecoverableOperand(MUse* u) const
return block()->info().isRecoverableOperand(indexOf(u));
}
MDefinition*
MToNumeric::foldsTo(TempAllocator& alloc)
{
MDefinition* input = getOperand(0);
if (input->isBox()) {
MDefinition* unboxed = input->getOperand(0);
if (IsNumericType(unboxed->type())) {
// If the argument is an MBox and we can see that it boxes a numeric
// value, ToNumeric can be elided.
return input;
}
}
return this;
}
MDefinition*
MToInt32::foldsTo(TempAllocator& alloc)
{