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tcg: Split out tcg_out_ext16u

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We will need a backend interface for performing 16-bit zero-extend.
Use it in tcg_reg_alloc_op in the meantime.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson 2023-04-05 16:25:22 -07:00
parent 753e42eada
commit 379afdff47
11 changed files with 66 additions and 42 deletions
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11
tcg/sparc64/tcg-target.c.inc
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@ -511,6 +511,12 @@ static void tcg_out_ext8u(TCGContext *s, TCGReg rd, TCGReg rs)
tcg_out_arithi(s, rd, rs, 0xff, ARITH_AND);
}
static void tcg_out_ext16u(TCGContext *s, TCGReg rd, TCGReg rs)
{
tcg_out_arithi(s, rd, rs, 16, SHIFT_SLL);
tcg_out_arithi(s, rd, rd, 16, SHIFT_SRL);
}
static void tcg_out_addi_ptr(TCGContext *s, TCGReg rd, TCGReg rs,
tcg_target_long imm)
{
@ -896,8 +902,7 @@ static void emit_extend(TCGContext *s, TCGReg r, int op)
tcg_out_ext8u(s, r, r);
break;
case MO_16:
tcg_out_arithi(s, r, r, 16, SHIFT_SLL);
tcg_out_arithi(s, r, r, 16, SHIFT_SRL);
tcg_out_ext16u(s, r, r);
break;
case MO_32:
tcg_out_arith(s, r, r, 0, SHIFT_SRL);
@ -1721,6 +1726,8 @@ static void tcg_out_op(TCGContext *s, TCGOpcode opc,
case INDEX_op_ext8u_i64:
case INDEX_op_ext16s_i32:
case INDEX_op_ext16s_i64:
case INDEX_op_ext16u_i32:
case INDEX_op_ext16u_i64:
default:
g_assert_not_reached();
}