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authorPeter Maydell <peter.maydell@linaro.org>2020-06-19 18:15:47 +0100
committerPeter Maydell <peter.maydell@linaro.org>2020-06-23 11:39:47 +0100
commitced7e8edb282765685d2ba0206a11f8692d8ec1c (patch)
treed6888b0ab2600616215c18b41876ae374f25fec0
parent55c812b74289863c348449135812027d188f040a (diff)
downloadqemu-ced7e8edb282765685d2ba0206a11f8692d8ec1c.zip
target/arm: Remove dead code relating to SABA and UABA
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 Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20200619171547.29780-1-peter.maydell@linaro.org
-rw-r--r--target/arm/translate-a64.c12
1 files changed, 0 insertions, 12 deletions
diff --git a/target/arm/translate-a64.c b/target/arm/translate-a64.c
index 1204098498..4cef862c41 100644
--- a/target/arm/translate-a64.c
+++ b/target/arm/translate-a64.c
@@ -11370,18 +11370,6 @@ static void disas_simd_3same_int(DisasContext *s, uint32_t insn)
genfn(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_res, tcg_op1, tcg_res);
- }
-
write_vec_element_i32(s, tcg_res, rd, pass, MO_32);
tcg_temp_free_i32(tcg_res);