ZJIT: A64: Fix splitting for large memory displacements

On the ruby side, this fixes a crash for methods with 39 or more
parameters. We used to miscomp those entry points due to Insn::Lea
picking ADDS which cannot reference SP:

    # set method params: 40
    mov x0, #0xfee8
    movk x0, #0xffff, lsl #16
    movk x0, #0xffff, lsl #32
    movk x0, #0xffff, lsl #48
    adds x0, xzr, x0

Have Lea work for all i32 displacements and avoid involving the split
pass. Previously, direct use of Insn::Lea directly from the user (as
opposed to generated by the split pass for some memory operations)
wasn't split, so being able to handle the whole range in arm64_emit()
was implicitly required. Also, not going through split reduces register
pressure.

0 files changed, 0 insertions, 0 deletions