Re: [RFC PATCH] tcg: Restrict qemu_ld2 and qemu_st2 opcodes to 32-bit hosts

[Richard Henderson]

On 8/20/25 23:49, Philippe Mathieu-Daudé wrote:

qemu_ld2 and qemu_st2 opcodes are band-aid for 32-bit hosts
and can't be reached on 64-bit ones. See in commit 3bedb9d3e28
("tcg: Convert qemu_ld{2} to TCGOutOpLoad{2}") and 86fe5c2597c
("tcg: Convert qemu_st{2} to TCGOutOpLdSt{2}") their constraint
is C_NotImplemented.

Not true: ld2/st2 are also used for 128-bit load store.

See: aarch64, x86_64, loongarch64, ppc64, s390x.


r~