x86_64/isel: fix edge case with branch on float add result

In `if (x + 1)` the implicit `!= 0` can be omitted for integers, because
the x86 `add` instruction sets the zero flag accordingly. But for floats
it doesn't, so applying that optimization there was wrong. Luckily it
was caught by a nullptr dereference later in `emit::Xjcc()` for the
(missing) unordered branch target, instead of miscompiling.

0 files changed, 0 insertions, 0 deletions