diff options
| author | Richard Henderson <richard.henderson@linaro.org> | 2023-04-05 11:17:01 -0700 |
|---|---|---|
| committer | Richard Henderson <richard.henderson@linaro.org> | 2023-04-23 08:17:49 +0100 |
| commit | 678155b2c50aa3bf37abef6bfe914bf58f49bec2 (patch) | |
| tree | 0a1e598a31c2bc1b47c2055c1f6fb2fddf3cf988 /tcg/i386 | |
| parent | 732e89f4c401c3cf175aa84c987a029b9729070b (diff) | |
tcg: Split out tcg_out_ext8s
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>
Diffstat (limited to 'tcg/i386')
| -rw-r--r-- | tcg/i386/tcg-target.c.inc | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/tcg/i386/tcg-target.c.inc b/tcg/i386/tcg-target.c.inc index b05193050d..14e8bdf56b 100644 --- a/tcg/i386/tcg-target.c.inc +++ b/tcg/i386/tcg-target.c.inc @@ -1266,8 +1266,9 @@ static inline void tcg_out_ext8u(TCGContext *s, int dest, int src) tcg_out_modrm(s, OPC_MOVZBL + P_REXB_RM, dest, src); } -static void tcg_out_ext8s(TCGContext *s, int dest, int src, int rexw) +static void tcg_out_ext8s(TCGContext *s, TCGType type, TCGReg dest, TCGReg src) { + int rexw = type == TCG_TYPE_I32 ? 0 : P_REXW; /* movsbl */ tcg_debug_assert(src < 4 || TCG_TARGET_REG_BITS == 64); tcg_out_modrm(s, OPC_MOVSBL + P_REXB_RM + rexw, dest, src); @@ -1929,7 +1930,7 @@ static bool tcg_out_qemu_ld_slow_path(TCGContext *s, TCGLabelQemuLdst *l) data_reg = l->datalo_reg; switch (opc & MO_SSIZE) { case MO_SB: - tcg_out_ext8s(s, data_reg, TCG_REG_EAX, rexw); + 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); @@ -2669,9 +2670,6 @@ 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(ext8s): - tcg_out_ext8s(s, a0, a1, rexw); - break; OP_32_64(ext16s): tcg_out_ext16s(s, a0, a1, rexw); break; @@ -2840,6 +2838,8 @@ static inline 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(); } |