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tcg: Split out tcg_out_ext8s

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We will need a backend interface for performing 8-bit sign-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 11:17:01 -07:00
parent 732e89f4c4
commit 678155b2c5
11 changed files with 81 additions and 51 deletions
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11
tcg/loongarch64/tcg-target.c.inc
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@ -441,7 +441,7 @@ static void tcg_out_ext32u(TCGContext *s, TCGReg ret, TCGReg arg)
tcg_out_opc_bstrpick_d(s, ret, arg, 0, 31);
}
static void tcg_out_ext8s(TCGContext *s, TCGReg ret, TCGReg arg)
static void tcg_out_ext8s(TCGContext *s, TCGType type, TCGReg ret, TCGReg arg)
{
tcg_out_opc_sext_b(s, ret, arg);
}
@ -893,7 +893,7 @@ static bool tcg_out_qemu_ld_slow_path(TCGContext *s, TCGLabelQemuLdst *l)
switch (opc & MO_SSIZE) {
case MO_SB:
tcg_out_ext8s(s, l->datalo_reg, TCG_REG_A0);
tcg_out_ext8s(s, type, l->datalo_reg, TCG_REG_A0);
break;
case MO_SW:
tcg_out_ext16s(s, l->datalo_reg, TCG_REG_A0);
@ -1246,11 +1246,6 @@ static void tcg_out_op(TCGContext *s, TCGOpcode opc,
tcg_out_brcond(s, a2, a0, a1, arg_label(args[3]));
break;
case INDEX_op_ext8s_i32:
case INDEX_op_ext8s_i64:
tcg_out_ext8s(s, a0, a1);
break;
case INDEX_op_ext8u_i32:
case INDEX_op_ext8u_i64:
tcg_out_ext8u(s, a0, a1);
@ -1627,6 +1622,8 @@ static void tcg_out_op(TCGContext *s, TCGOpcode opc,
case INDEX_op_call: /* Always emitted via tcg_out_call. */
case INDEX_op_exit_tb: /* Always emitted via tcg_out_exit_tb. */
case INDEX_op_goto_tb: /* Always emitted via tcg_out_goto_tb. */
case INDEX_op_ext8s_i32: /* Always emitted via tcg_reg_alloc_op. */
case INDEX_op_ext8s_i64:
default:
g_assert_not_reached();
}