tcg: Eliminate one store for in-place 128-bit dup_mem
Do not store back to the exact memory from which we just loaded. Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
parent
4ca3d09cd9
commit
6a17646176
|
@ -1581,7 +1581,7 @@ void tcg_gen_gvec_dup_mem(unsigned vece, uint32_t dofs, uint32_t aofs,
|
|||
TCGv_vec in = tcg_temp_new_vec(TCG_TYPE_V128);
|
||||
|
||||
tcg_gen_ld_vec(in, cpu_env, aofs);
|
||||
for (i = 0; i < oprsz; i += 16) {
|
||||
for (i = (aofs == dofs) * 16; i < oprsz; i += 16) {
|
||||
tcg_gen_st_vec(in, cpu_env, dofs + i);
|
||||
}
|
||||
tcg_temp_free_vec(in);
|
||||
|
@ -1591,7 +1591,7 @@ void tcg_gen_gvec_dup_mem(unsigned vece, uint32_t dofs, uint32_t aofs,
|
|||
|
||||
tcg_gen_ld_i64(in0, cpu_env, aofs);
|
||||
tcg_gen_ld_i64(in1, cpu_env, aofs + 8);
|
||||
for (i = 0; i < oprsz; i += 16) {
|
||||
for (i = (aofs == dofs) * 16; i < oprsz; i += 16) {
|
||||
tcg_gen_st_i64(in0, cpu_env, dofs + i);
|
||||
tcg_gen_st_i64(in1, cpu_env, dofs + i + 8);
|
||||
}
|
||||
|
|
Loading…
Reference in New Issue