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tcg: Split out tcg_out_ext32s

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We will need a backend interface for performing 32-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 17:50:09 -07:00
parent 379afdff47
commit 52bf3398c3
11 changed files with 54 additions and 20 deletions
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12
tcg/mips/tcg-target.c.inc
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@ -574,6 +574,12 @@ static void tcg_out_ext16u(TCGContext *s, TCGReg rd, TCGReg rs)
tcg_out_opc_imm(s, OPC_ANDI, rd, rs, 0xffff);
}
static void tcg_out_ext32s(TCGContext *s, TCGReg rd, TCGReg rs)
{
tcg_debug_assert(TCG_TARGET_REG_BITS == 64);
tcg_out_opc_sa(s, OPC_SLL, rd, rs, 0);
}
static void tcg_out_addi_ptr(TCGContext *s, TCGReg rd, TCGReg rs,
tcg_target_long imm)
{
@ -1313,7 +1319,7 @@ static bool tcg_out_qemu_ld_slow_path(TCGContext *s, TCGLabelQemuLdst *l)
/* delay slot */
if (TCG_TARGET_REG_BITS == 64 && l->type == TCG_TYPE_I32) {
/* we always sign-extend 32-bit loads */
tcg_out_opc_sa(s, OPC_SLL, v0, TCG_REG_V0, 0);
tcg_out_ext32s(s, v0, TCG_REG_V0);
} else {
tcg_out_opc_reg(s, OPC_OR, v0, TCG_REG_V0, TCG_REG_ZERO);
}
@ -2287,10 +2293,9 @@ static void tcg_out_op(TCGContext *s, TCGOpcode opc,
case INDEX_op_extrh_i64_i32:
tcg_out_dsra(s, a0, a1, 32);
break;
case INDEX_op_ext32s_i64:
case INDEX_op_ext_i32_i64:
case INDEX_op_extrl_i64_i32:
tcg_out_opc_sa(s, OPC_SLL, a0, a1, 0);
tcg_out_ext32s(s, a0, a1);
break;
case INDEX_op_ext32u_i64:
case INDEX_op_extu_i32_i64:
@ -2440,6 +2445,7 @@ 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_ext32s_i64:
default:
g_assert_not_reached();
}