motorhead/qemu
1
0
Fork 0
mirror of https://github.com/Motorhead1991/qemu.git synced 2025-08-07 01:33:56 -06:00
Code Issues Projects Releases Packages Wiki Activity Actions

tcg: Split out tcg_out_ext16u

Browse source 
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
Download patch file Download diff file Expand all files Collapse all files

17
tcg/arm/tcg-target.c.inc
View file

@ -981,12 +981,18 @@ static void tcg_out_ext16s(TCGContext *s, TCGType t, TCGReg rd, TCGReg rn)
tcg_out32(s, 0x06bf0070 | (COND_AL << 28) | (rd << 12) | rn);
}
static void tcg_out_ext16u(TCGContext *s, ARMCond cond, TCGReg rd, TCGReg rn)
static void tcg_out_ext16u_cond(TCGContext *s, ARMCond cond,
TCGReg rd, TCGReg rn)
{
/* uxth */
tcg_out32(s, 0x06ff0070 | (cond << 28) | (rd << 12) | rn);
}
static void tcg_out_ext16u(TCGContext *s, TCGReg rd, TCGReg rn)
{
tcg_out_ext16u_cond(s, COND_AL, rd, rn);
}
static void tcg_out_bswap16(TCGContext *s, ARMCond cond,
TCGReg rd, TCGReg rn, int flags)
{
@ -1372,8 +1378,8 @@ DEFINE_TCG_OUT_ARG(tcg_out_arg_imm32, uint32_t, tcg_out_movi32,
(tcg_out_movi32(s, COND_AL, TCG_REG_TMP, arg), arg = TCG_REG_TMP))
DEFINE_TCG_OUT_ARG(tcg_out_arg_reg8, TCGReg, tcg_out_ext8u_cond,
(tcg_out_ext8u_cond(s, COND_AL, TCG_REG_TMP, arg), arg = TCG_REG_TMP))
DEFINE_TCG_OUT_ARG(tcg_out_arg_reg16, TCGReg, tcg_out_ext16u,
(tcg_out_ext16u(s, COND_AL, TCG_REG_TMP, arg), arg = TCG_REG_TMP))
DEFINE_TCG_OUT_ARG(tcg_out_arg_reg16, TCGReg, tcg_out_ext16u_cond,
(tcg_out_ext16u_cond(s, COND_AL, TCG_REG_TMP, arg), arg = TCG_REG_TMP))
DEFINE_TCG_OUT_ARG(tcg_out_arg_reg32, TCGReg, tcg_out_mov_reg, )
static TCGReg tcg_out_arg_reg64(TCGContext *s, TCGReg argreg,
@ -2249,10 +2255,6 @@ static void tcg_out_op(TCGContext *s, TCGOpcode opc,
tcg_out_bswap32(s, COND_AL, args[0], args[1]);
break;
case INDEX_op_ext16u_i32:
tcg_out_ext16u(s, COND_AL, args[0], args[1]);
break;
case INDEX_op_deposit_i32:
tcg_out_deposit(s, COND_AL, args[0], args[2],
args[3], args[4], const_args[2]);
@ -2303,6 +2305,7 @@ static void tcg_out_op(TCGContext *s, TCGOpcode opc,
case INDEX_op_ext8s_i32: /* Always emitted via tcg_reg_alloc_op. */
case INDEX_op_ext8u_i32:
case INDEX_op_ext16s_i32:
case INDEX_op_ext16u_i32:
default:
g_assert_not_reached();
}