Merge tag 'pull-tcg-20250429' of https://gitlab.com/rth7680/qemu into staging

Convert TCG backend code generators to TCGOutOp structures,
decomposing the monolithic tcg_out_op functions.

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* tag 'pull-tcg-20250429' of https://gitlab.com/rth7680/qemu: (161 commits)
  tcg/sparc64: Implement CTPOP
  tcg/sparc64: Unexport use_vis3_instructions
  tcg: Remove tcg_out_op
  tcg: Convert qemu_st{2} to TCGOutOpLdSt{2}
  tcg: Convert qemu_ld{2} to TCGOutOpLoad{2}
  tcg: Merge INDEX_op_{ld,st}_{i32,i64,i128}
  tcg: Remove INDEX_op_qemu_st8_*
  tcg: Stash MemOp size in TCGOP_FLAGS
  tcg: Merge INDEX_op_st*_{i32,i64}
  tcg: Convert st to TCGOutOpStore
  tcg: Merge INDEX_op_ld*_{i32,i64}
  tcg: Convert ld to TCGOutOpLoad
  tcg: Formalize tcg_out_goto_ptr
  tcg: Formalize tcg_out_br
  tcg: Formalize tcg_out_mb
  tcg: Remove add2/sub2 opcodes
  tcg/tci: Implement add/sub carry opcodes
  tcg/sparc64: Implement add/sub carry opcodes
  tcg/sparc64: Hoist tcg_cond_to_bcond lookup out of tcg_out_movcc
  tcg/s390x: Use ADD LOGICAL WITH SIGNED IMMEDIATE
  ...

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>