diff options
| author | Richard Henderson <richard.henderson@linaro.org> | 2023-04-05 14:49:59 -0700 |
|---|---|---|
| committer | Richard Henderson <richard.henderson@linaro.org> | 2023-04-23 08:21:19 +0100 |
| commit | 753e42eada5c790bb3727c262f2e368e81cc788f (patch) | |
| tree | 854969ea72b1ed34b29709139bafc6a4b9cc656d /tcg/i386 | |
| parent | d0e66c897f2cdfb0807b76567a17d7811487fac3 (diff) | |
tcg: Split out tcg_out_ext16s
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>
Diffstat (limited to 'tcg/i386')
| -rw-r--r-- | tcg/i386/tcg-target.c.inc | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/tcg/i386/tcg-target.c.inc b/tcg/i386/tcg-target.c.inc index 462a2348c6..21bd828146 100644 --- a/tcg/i386/tcg-target.c.inc +++ b/tcg/i386/tcg-target.c.inc @@ -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(); } |