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target/arm: Remove dead code relating to SABA and UABA

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In commit cfdb2c0c95ae9205b0 ("target/arm: Vectorize SABA/UABA") we
replaced the old handling of SABA/UABA with a vectorized implementation
which returns early rather than falling into the loop-ever-elements
code. We forgot to delete the part of the old looping code that
did the accumulate step, and Coverity correctly warns (CID 1428955)
that this code is now dead. Delete it.

Fixes: cfdb2c0c95ae9205b0

Backports commit ced7e8edb282765685d2ba0206a11f8692d8ec1c from qemu
This commit is contained in:
Peter Maydell 2021-02-25 13:18:49 -05:00 committed by Lioncash
parent 167ed57625
commit 4a1996502f
1 changed files with 0 additions and 12 deletions
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12
qemu/target/arm/translate-a64.c
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@ -11661,18 +11661,6 @@ static void disas_simd_3same_int(DisasContext *s, uint32_t insn)
genfn(tcg_ctx, tcg_res, tcg_op1, tcg_op2);
}
if (opcode == 0xf) {
/* SABA, UABA: accumulating ops */
static NeonGenTwoOpFn * const fns[3] = {
gen_helper_neon_add_u8,
gen_helper_neon_add_u16,
tcg_gen_add_i32,
};
read_vec_element_i32(s, tcg_op1, rd, pass, MO_32);
fns[size](tcg_ctx, tcg_res, tcg_op1, tcg_res);
}
write_vec_element_i32(s, tcg_res, rd, pass, MO_32);
tcg_temp_free_i32(tcg_ctx, tcg_res);