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tcg: Split out tcg_out_ext16s

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We will need a backend interface for performing 16-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 14:49:59 -07:00
parent d0e66c897f
commit 753e42eada
11 changed files with 79 additions and 52 deletions
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13
tcg/aarch64/tcg-target.c.inc
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@ -1424,6 +1424,11 @@ static void tcg_out_ext8s(TCGContext *s, TCGType type, TCGReg rd, TCGReg rn)
tcg_out_sxt(s, type, MO_8, rd, rn);
}
static void tcg_out_ext16s(TCGContext *s, TCGType type, TCGReg rd, TCGReg rn)
{
tcg_out_sxt(s, type, MO_16, rd, rn);
}
static inline void tcg_out_uxt(TCGContext *s, MemOp s_bits,
TCGReg rd, TCGReg rn)
{
@ -2233,17 +2238,13 @@ static void tcg_out_op(TCGContext *s, TCGOpcode opc,
tcg_out_rev(s, TCG_TYPE_I32, MO_16, a0, a1);
if (a2 & TCG_BSWAP_OS) {
/* Output must be sign-extended. */
tcg_out_sxt(s, ext, MO_16, a0, a0);
tcg_out_ext16s(s, ext, a0, a0);
} else if ((a2 & (TCG_BSWAP_IZ | TCG_BSWAP_OZ)) == TCG_BSWAP_OZ) {
/* Output must be zero-extended, but input isn't. */
tcg_out_uxt(s, MO_16, a0, a0);
}
break;
case INDEX_op_ext16s_i64:
case INDEX_op_ext16s_i32:
tcg_out_sxt(s, ext, MO_16, a0, a1);
break;
case INDEX_op_ext_i32_i64:
case INDEX_op_ext32s_i64:
tcg_out_sxt(s, TCG_TYPE_I64, MO_32, a0, a1);
@ -2316,6 +2317,8 @@ static void tcg_out_op(TCGContext *s, TCGOpcode opc,
case INDEX_op_ext8s_i64:
case INDEX_op_ext8u_i32:
case INDEX_op_ext8u_i64:
case INDEX_op_ext16s_i64:
case INDEX_op_ext16s_i32:
default:
g_assert_not_reached();
}

10
tcg/arm/tcg-target.c.inc
View File

@ -975,10 +975,10 @@ tcg_out_ext8u_cond(TCGContext *s, ARMCond cond, TCGReg rd, TCGReg rn)
tcg_out_dat_imm(s, cond, ARITH_AND, rd, rn, 0xff);
}
static void tcg_out_ext16s(TCGContext *s, ARMCond cond, TCGReg rd, TCGReg rn)
static void tcg_out_ext16s(TCGContext *s, TCGType t, TCGReg rd, TCGReg rn)
{
/* sxth */
tcg_out32(s, 0x06bf0070 | (cond << 28) | (rd << 12) | rn);
tcg_out32(s, 0x06bf0070 | (COND_AL << 28) | (rd << 12) | rn);
}
static void tcg_out_ext16u(TCGContext *s, ARMCond cond, TCGReg rd, TCGReg rn)
@ -1541,7 +1541,7 @@ static bool tcg_out_qemu_ld_slow_path(TCGContext *s, TCGLabelQemuLdst *lb)
tcg_out_ext8s(s, TCG_TYPE_I32, datalo, TCG_REG_R0);
break;
case MO_SW:
tcg_out_ext16s(s, COND_AL, datalo, TCG_REG_R0);
tcg_out_ext16s(s, TCG_TYPE_I32, datalo, TCG_REG_R0);
break;
default:
tcg_out_mov_reg(s, COND_AL, datalo, TCG_REG_R0);
@ -2249,9 +2249,6 @@ static void tcg_out_op(TCGContext *s, TCGOpcode opc,
tcg_out_bswap32(s, COND_AL, args[0], args[1]);
break;
case INDEX_op_ext16s_i32:
tcg_out_ext16s(s, COND_AL, args[0], args[1]);
break;
case INDEX_op_ext16u_i32:
tcg_out_ext16u(s, COND_AL, args[0], args[1]);
break;
@ -2305,6 +2302,7 @@ static void tcg_out_op(TCGContext *s, TCGOpcode opc,
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_ext8u_i32:
case INDEX_op_ext16s_i32:
default:
g_assert_not_reached();
}

16
tcg/i386/tcg-target.c.inc
View File

@ -1280,8 +1280,9 @@ static inline void tcg_out_ext16u(TCGContext *s, int dest, int src)
tcg_out_modrm(s, OPC_MOVZWL, dest, src);
}
static inline void tcg_out_ext16s(TCGContext *s, int dest, int src, int rexw)
static void tcg_out_ext16s(TCGContext *s, TCGType type, TCGReg dest, TCGReg src)
{
int rexw = type == TCG_TYPE_I32 ? 0 : P_REXW;
/* movsw[lq] */
tcg_out_modrm(s, OPC_MOVSWL + rexw, dest, src);
}
@ -1891,7 +1892,6 @@ static bool tcg_out_qemu_ld_slow_path(TCGContext *s, TCGLabelQemuLdst *l)
MemOp opc = get_memop(oi);
TCGReg data_reg;
tcg_insn_unit **label_ptr = &l->label_ptr[0];
int rexw = (l->type == TCG_TYPE_I64 ? P_REXW : 0);
/* resolve label address */
tcg_patch32(label_ptr[0], s->code_ptr - label_ptr[0] - 4);
@ -1933,7 +1933,7 @@ static bool tcg_out_qemu_ld_slow_path(TCGContext *s, TCGLabelQemuLdst *l)
tcg_out_ext8s(s, l->type, data_reg, TCG_REG_EAX);
break;
case MO_SW:
tcg_out_ext16s(s, data_reg, TCG_REG_EAX, rexw);
tcg_out_ext16s(s, l->type, data_reg, TCG_REG_EAX);
break;
#if TCG_TARGET_REG_BITS == 64
case MO_SL:
@ -2153,6 +2153,7 @@ static void tcg_out_qemu_ld_direct(TCGContext *s, TCGReg datalo, TCGReg datahi,
TCGReg base, int index, intptr_t ofs,
int seg, bool is64, MemOp memop)
{
TCGType type = is64 ? TCG_TYPE_I64 : TCG_TYPE_I32;
bool use_movbe = false;
int rexw = is64 * P_REXW;
int movop = OPC_MOVL_GvEv;
@ -2195,7 +2196,7 @@ static void tcg_out_qemu_ld_direct(TCGContext *s, TCGReg datalo, TCGReg datahi,
if (use_movbe) {
tcg_out_modrm_sib_offset(s, OPC_MOVBE_GyMy + P_DATA16 + seg,
datalo, base, index, 0, ofs);
tcg_out_ext16s(s, datalo, datalo, rexw);
tcg_out_ext16s(s, type, datalo, datalo);
} else {
tcg_out_modrm_sib_offset(s, OPC_MOVSWL + rexw + seg,
datalo, base, index, 0, ofs);
@ -2670,9 +2671,6 @@ static inline void tcg_out_op(TCGContext *s, TCGOpcode opc,
tcg_out_modrm(s, OPC_GRP3_Ev + rexw, EXT3_NOT, a0);
break;
OP_32_64(ext16s):
tcg_out_ext16s(s, a0, a1, rexw);
break;
OP_32_64(ext16u):
tcg_out_ext16u(s, a0, a1);
break;
@ -2816,7 +2814,7 @@ static inline void tcg_out_op(TCGContext *s, TCGOpcode opc,
if (a1 < 4 && a0 < 8) {
tcg_out_modrm(s, OPC_MOVSBL, a0, a1 + 4);
} else {
tcg_out_ext16s(s, a0, a1, 0);
tcg_out_ext16s(s, TCG_TYPE_I32, a0, a1);
tcg_out_shifti(s, SHIFT_SAR, a0, 8);
}
break;
@ -2839,6 +2837,8 @@ static inline void tcg_out_op(TCGContext *s, TCGOpcode opc,
case INDEX_op_ext8s_i64:
case INDEX_op_ext8u_i32:
case INDEX_op_ext8u_i64:
case INDEX_op_ext16s_i32:
case INDEX_op_ext16s_i64:
default:
g_assert_not_reached();
}

13
tcg/loongarch64/tcg-target.c.inc
View File

@ -446,7 +446,7 @@ static void tcg_out_ext8s(TCGContext *s, TCGType type, TCGReg ret, TCGReg arg)
tcg_out_opc_sext_b(s, ret, arg);
}
static void tcg_out_ext16s(TCGContext *s, TCGReg ret, TCGReg arg)
static void tcg_out_ext16s(TCGContext *s, TCGType type, TCGReg ret, TCGReg arg)
{
tcg_out_opc_sext_h(s, ret, arg);
}
@ -896,7 +896,7 @@ static bool tcg_out_qemu_ld_slow_path(TCGContext *s, TCGLabelQemuLdst *l)
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);
tcg_out_ext16s(s, type, l->datalo_reg, TCG_REG_A0);
break;
case MO_SL:
tcg_out_ext32s(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_ext16s_i32:
case INDEX_op_ext16s_i64:
tcg_out_ext16s(s, a0, a1);
break;
case INDEX_op_ext16u_i32:
case INDEX_op_ext16u_i64:
tcg_out_ext16u(s, a0, a1);
@ -1351,7 +1346,7 @@ static void tcg_out_op(TCGContext *s, TCGOpcode opc,
case INDEX_op_bswap16_i64:
tcg_out_opc_revb_2h(s, a0, a1);
if (a2 & TCG_BSWAP_OS) {
tcg_out_ext16s(s, a0, a0);
tcg_out_ext16s(s, TCG_TYPE_REG, a0, a0);
} else if ((a2 & (TCG_BSWAP_IZ | TCG_BSWAP_OZ)) == TCG_BSWAP_OZ) {
tcg_out_ext16u(s, a0, a0);
}
@ -1621,6 +1616,8 @@ static void tcg_out_op(TCGContext *s, TCGOpcode opc,
case INDEX_op_ext8s_i64:
case INDEX_op_ext8u_i32:
case INDEX_op_ext8u_i64:
case INDEX_op_ext16s_i32:
case INDEX_op_ext16s_i64:
default:
g_assert_not_reached();
}

11
tcg/mips/tcg-target.c.inc
View File

@ -563,6 +563,12 @@ static void tcg_out_ext8u(TCGContext *s, TCGReg rd, TCGReg rs)
tcg_out_opc_imm(s, OPC_ANDI, rd, rs, 0xff);
}
static void tcg_out_ext16s(TCGContext *s, TCGType type, TCGReg rd, TCGReg rs)
{
tcg_debug_assert(TCG_TARGET_HAS_ext16s_i32);
tcg_out_opc_reg(s, OPC_SEH, rd, TCG_REG_ZERO, rs);
}
static void tcg_out_addi_ptr(TCGContext *s, TCGReg rd, TCGReg rs,
tcg_target_long imm)
{
@ -2256,9 +2262,6 @@ static void tcg_out_op(TCGContext *s, TCGOpcode opc,
case INDEX_op_not_i64:
i1 = OPC_NOR;
goto do_unary;
case INDEX_op_ext16s_i32:
case INDEX_op_ext16s_i64:
i1 = OPC_SEH;
do_unary:
tcg_out_opc_reg(s, i1, a0, TCG_REG_ZERO, a1);
break;
@ -2430,6 +2433,8 @@ static void tcg_out_op(TCGContext *s, TCGOpcode opc,
case INDEX_op_ext8s_i64:
case INDEX_op_ext8u_i32:
case INDEX_op_ext8u_i64:
case INDEX_op_ext16s_i32:
case INDEX_op_ext16s_i64:
default:
g_assert_not_reached();
}

12
tcg/ppc/tcg-target.c.inc
View File

@ -785,7 +785,7 @@ static void tcg_out_ext8u(TCGContext *s, TCGReg dst, TCGReg src)
tcg_out32(s, ANDI | SAI(src, dst, 0xff));
}
static inline void tcg_out_ext16s(TCGContext *s, TCGReg dst, TCGReg src)
static void tcg_out_ext16s(TCGContext *s, TCGType type, TCGReg dst, TCGReg src)
{
tcg_out32(s, EXTSH | RA(dst) | RS(src));
}
@ -843,7 +843,7 @@ static void tcg_out_bswap16(TCGContext *s, TCGReg dst, TCGReg src, int flags)
if (have_isa_3_10) {
tcg_out32(s, BRH | RA(dst) | RS(src));
if (flags & TCG_BSWAP_OS) {
tcg_out_ext16s(s, dst, dst);
tcg_out_ext16s(s, TCG_TYPE_REG, dst, dst);
} else if ((flags & (TCG_BSWAP_IZ | TCG_BSWAP_OZ)) == TCG_BSWAP_OZ) {
tcg_out_ext16u(s, dst, dst);
}
@ -862,7 +862,7 @@ static void tcg_out_bswap16(TCGContext *s, TCGReg dst, TCGReg src, int flags)
tcg_out_rlw(s, RLWIMI, tmp, src, 8, 16, 23);
if (flags & TCG_BSWAP_OS) {
tcg_out_ext16s(s, dst, tmp);
tcg_out_ext16s(s, TCG_TYPE_REG, dst, tmp);
} else {
tcg_out_mov(s, TCG_TYPE_REG, dst, tmp);
}
@ -2979,10 +2979,6 @@ static void tcg_out_op(TCGContext *s, TCGOpcode opc,
tcg_out_qemu_st(s, args, true);
break;
case INDEX_op_ext16s_i32:
case INDEX_op_ext16s_i64:
tcg_out_ext16s(s, args[0], args[1]);
break;
case INDEX_op_ext_i32_i64:
case INDEX_op_ext32s_i64:
tcg_out_ext32s(s, args[0], args[1]);
@ -3130,6 +3126,8 @@ static void tcg_out_op(TCGContext *s, TCGOpcode opc,
case INDEX_op_ext8s_i64:
case INDEX_op_ext8u_i32:
case INDEX_op_ext8u_i64:
case INDEX_op_ext16s_i32:
case INDEX_op_ext16s_i64:
default:
g_assert_not_reached();
}

9
tcg/riscv/tcg-target.c.inc
View File

@ -591,7 +591,7 @@ static void tcg_out_ext8s(TCGContext *s, TCGType type, TCGReg ret, TCGReg arg)
tcg_out_opc_imm(s, OPC_SRAIW, ret, ret, 24);
}
static void tcg_out_ext16s(TCGContext *s, TCGReg ret, TCGReg arg)
static void tcg_out_ext16s(TCGContext *s, TCGType type, TCGReg ret, TCGReg arg)
{
tcg_out_opc_imm(s, OPC_SLLIW, ret, arg, 16);
tcg_out_opc_imm(s, OPC_SRAIW, ret, ret, 16);
@ -1607,11 +1607,6 @@ static void tcg_out_op(TCGContext *s, TCGOpcode opc,
tcg_out_ext32u(s, a0, a1);
break;
case INDEX_op_ext16s_i32:
case INDEX_op_ext16s_i64:
tcg_out_ext16s(s, a0, a1);
break;
case INDEX_op_ext32s_i64:
case INDEX_op_extrl_i64_i32:
case INDEX_op_ext_i32_i64:
@ -1645,6 +1640,8 @@ static void tcg_out_op(TCGContext *s, TCGOpcode opc,
case INDEX_op_ext8s_i64:
case INDEX_op_ext8u_i32:
case INDEX_op_ext8u_i64:
case INDEX_op_ext16s_i32:
case INDEX_op_ext16s_i64:
default:
g_assert_not_reached();
}

12
tcg/s390x/tcg-target.c.inc
View File

@ -1102,7 +1102,7 @@ static void tcg_out_ext8u(TCGContext *s, TCGReg dest, TCGReg src)
tcg_out_insn(s, RRE, LLGCR, dest, src);
}
static void tgen_ext16s(TCGContext *s, TCGType type, TCGReg dest, TCGReg src)
static void tcg_out_ext16s(TCGContext *s, TCGType type, TCGReg dest, TCGReg src)
{
tcg_out_insn(s, RRE, LGHR, dest, src);
}
@ -1609,7 +1609,7 @@ static void tcg_out_qemu_ld_direct(TCGContext *s, MemOp opc, TCGReg data,
case MO_SW | MO_BSWAP:
/* swapped sign-extended halfword load */
tcg_out_insn(s, RXY, LRVH, data, base, index, disp);
tgen_ext16s(s, TCG_TYPE_I64, data, data);
tcg_out_ext16s(s, TCG_TYPE_REG, data, data);
break;
case MO_SW:
tcg_out_insn(s, RXY, LGH, data, base, index, disp);
@ -2233,9 +2233,6 @@ static inline void tcg_out_op(TCGContext *s, TCGOpcode opc,
}
break;
case INDEX_op_ext16s_i32:
tgen_ext16s(s, TCG_TYPE_I32, args[0], args[1]);
break;
case INDEX_op_ext16u_i32:
tgen_ext16u(s, TCG_TYPE_I32, args[0], args[1]);
break;
@ -2531,9 +2528,6 @@ static inline void tcg_out_op(TCGContext *s, TCGOpcode opc,
}
break;
case INDEX_op_ext16s_i64:
tgen_ext16s(s, TCG_TYPE_I64, args[0], args[1]);
break;
case INDEX_op_ext_i32_i64:
case INDEX_op_ext32s_i64:
tgen_ext32s(s, args[0], args[1]);
@ -2636,6 +2630,8 @@ static inline void tcg_out_op(TCGContext *s, TCGOpcode opc,
case INDEX_op_ext8s_i64:
case INDEX_op_ext8u_i32:
case INDEX_op_ext8u_i64:
case INDEX_op_ext16s_i32:
case INDEX_op_ext16s_i64:
default:
g_assert_not_reached();
}

7
tcg/sparc64/tcg-target.c.inc
View File

@ -501,6 +501,11 @@ static void tcg_out_ext8s(TCGContext *s, TCGType type, TCGReg rd, TCGReg rs)
g_assert_not_reached();
}
static void tcg_out_ext16s(TCGContext *s, TCGType type, TCGReg rd, TCGReg rs)
{
g_assert_not_reached();
}
static void tcg_out_ext8u(TCGContext *s, TCGReg rd, TCGReg rs)
{
tcg_out_arithi(s, rd, rs, 0xff, ARITH_AND);
@ -1714,6 +1719,8 @@ static void tcg_out_op(TCGContext *s, TCGOpcode opc,
case INDEX_op_ext8s_i64:
case INDEX_op_ext8u_i32:
case INDEX_op_ext8u_i64:
case INDEX_op_ext16s_i32:
case INDEX_op_ext16s_i64:
default:
g_assert_not_reached();
}

7
tcg/tcg.c
View File

@ -106,6 +106,7 @@ static bool tcg_out_mov(TCGContext *s, TCGType type, TCGReg ret, TCGReg arg);
static void tcg_out_movi(TCGContext *s, TCGType type,
TCGReg ret, tcg_target_long arg);
static void tcg_out_ext8s(TCGContext *s, TCGType type, TCGReg ret, TCGReg arg);
static void tcg_out_ext16s(TCGContext *s, TCGType type, TCGReg ret, TCGReg arg);
static void tcg_out_ext8u(TCGContext *s, TCGReg ret, TCGReg arg);
static void tcg_out_addi_ptr(TCGContext *s, TCGReg, TCGReg, tcg_target_long);
static void tcg_out_exit_tb(TCGContext *s, uintptr_t arg);
@ -4509,6 +4510,12 @@ static void tcg_reg_alloc_op(TCGContext *s, const TCGOp *op)
case INDEX_op_ext8u_i64:
tcg_out_ext8u(s, new_args[0], new_args[1]);
break;
case INDEX_op_ext16s_i32:
tcg_out_ext16s(s, TCG_TYPE_I32, new_args[0], new_args[1]);
break;
case INDEX_op_ext16s_i64:
tcg_out_ext16s(s, TCG_TYPE_I64, new_args[0], new_args[1]);
break;
default:
if (def->flags & TCG_OPF_VECTOR) {
tcg_out_vec_op(s, op->opc, TCGOP_VECL(op), TCGOP_VECE(op),

21
tcg/tci/tcg-target.c.inc
View File

@ -586,6 +586,24 @@ static void tcg_out_ext8u(TCGContext *s, TCGReg rd, TCGReg rs)
}
}
static void tcg_out_ext16s(TCGContext *s, TCGType type, TCGReg rd, TCGReg rs)
{
switch (type) {
case TCG_TYPE_I32:
tcg_debug_assert(TCG_TARGET_HAS_ext16s_i32);
tcg_out_op_rr(s, INDEX_op_ext16s_i32, rd, rs);
break;
#if TCG_TARGET_REG_BITS == 64
case TCG_TYPE_I64:
tcg_debug_assert(TCG_TARGET_HAS_ext16s_i64);
tcg_out_op_rr(s, INDEX_op_ext16s_i64, rd, rs);
break;
#endif
default:
g_assert_not_reached();
}
}
static void tcg_out_addi_ptr(TCGContext *s, TCGReg rd, TCGReg rs,
tcg_target_long imm)
{
@ -744,7 +762,6 @@ static void tcg_out_op(TCGContext *s, TCGOpcode opc,
CASE_32_64(neg) /* Optional (TCG_TARGET_HAS_neg_*). */
CASE_32_64(not) /* Optional (TCG_TARGET_HAS_not_*). */
CASE_32_64(ext16s) /* Optional (TCG_TARGET_HAS_ext16s_*). */
CASE_32_64(ext16u) /* Optional (TCG_TARGET_HAS_ext16u_*). */
CASE_64(ext32s) /* Optional (TCG_TARGET_HAS_ext32s_i64). */
CASE_64(ext32u) /* Optional (TCG_TARGET_HAS_ext32u_i64). */
@ -826,6 +843,8 @@ static void tcg_out_op(TCGContext *s, TCGOpcode opc,
case INDEX_op_ext8s_i64:
case INDEX_op_ext8u_i32:
case INDEX_op_ext8u_i64:
case INDEX_op_ext16s_i32:
case INDEX_op_ext16s_i64:
default:
g_assert_not_reached();
}