From 96d0ee7f0950e725ef7a4f7516e0af6a08d303e0 Mon Sep 17 00:00:00 2001 From: Richard Henderson Date: Fri, 25 Apr 2014 15:19:33 -0400 Subject: tcg: Remove unreachable code in tcg_out_op and op_defs The INDEX_op_call case has just been obsoleted; the mov and movi cases have not been reachable for years. Attempt to document this both in each tcg_out_op switch, and via TCG_OPF_NOT_PRESENT. Because of the TCG_OPF_NOT_PRESENT change, this must be done for all targets in a single commit. Signed-off-by: Richard Henderson --- tcg/s390/tcg-target.c | 35 +++++------------------------------ 1 file changed, 5 insertions(+), 30 deletions(-) (limited to 'tcg/s390') diff --git a/tcg/s390/tcg-target.c b/tcg/s390/tcg-target.c index 0ae40e1..ebdd074 100644 --- a/tcg/s390/tcg-target.c +++ b/tcg/s390/tcg-target.c @@ -1612,21 +1612,6 @@ static inline void tcg_out_op(TCGContext *s, TCGOpcode opc, s->tb_next_offset[args[0]] = tcg_current_code_size(s); break; - case INDEX_op_call: - if (const_args[0]) { - tcg_out_call(s, (tcg_insn_unit *)(intptr_t)args[0]); - } else { - tcg_out_insn(s, RR, BASR, TCG_REG_R14, args[0]); - } - break; - - case INDEX_op_mov_i32: - tcg_out_mov(s, TCG_TYPE_I32, args[0], args[1]); - break; - case INDEX_op_movi_i32: - tcg_out_movi(s, TCG_TYPE_I32, args[0], args[1]); - break; - OP_32_64(ld8u): /* ??? LLC (RXY format) is only present with the extended-immediate facility, whereas LLGC is always present. */ @@ -1859,13 +1844,6 @@ static inline void tcg_out_op(TCGContext *s, TCGOpcode opc, tcg_out_qemu_st(s, args, LD_UINT64); break; - case INDEX_op_mov_i64: - tcg_out_mov(s, TCG_TYPE_I64, args[0], args[1]); - break; - case INDEX_op_movi_i64: - tcg_out_movi(s, TCG_TYPE_I64, args[0], args[1]); - break; - case INDEX_op_ld16s_i64: tcg_out_mem(s, 0, RXY_LGH, args[0], args[1], TCG_REG_NONE, args[2]); break; @@ -2070,8 +2048,12 @@ static inline void tcg_out_op(TCGContext *s, TCGOpcode opc, tgen_deposit(s, args[0], args[2], args[3], args[4]); break; + case INDEX_op_mov_i32: /* Always emitted via tcg_out_mov. */ + case INDEX_op_mov_i64: + case INDEX_op_movi_i32: /* Always emitted via tcg_out_movi. */ + case INDEX_op_movi_i64: + case INDEX_op_call: /* Always emitted via tcg_out_call. */ default: - fprintf(stderr,"unimplemented opc 0x%x\n",opc); tcg_abort(); } } @@ -2079,12 +2061,8 @@ static inline void tcg_out_op(TCGContext *s, TCGOpcode opc, static const TCGTargetOpDef s390_op_defs[] = { { INDEX_op_exit_tb, { } }, { INDEX_op_goto_tb, { } }, - { INDEX_op_call, { "ri" } }, { INDEX_op_br, { } }, - { INDEX_op_mov_i32, { "r", "r" } }, - { INDEX_op_movi_i32, { "r" } }, - { INDEX_op_ld8u_i32, { "r", "r" } }, { INDEX_op_ld8s_i32, { "r", "r" } }, { INDEX_op_ld16u_i32, { "r", "r" } }, @@ -2142,9 +2120,6 @@ static const TCGTargetOpDef s390_op_defs[] = { { INDEX_op_qemu_st32, { "L", "L" } }, { INDEX_op_qemu_st64, { "L", "L" } }, - { INDEX_op_mov_i64, { "r", "r" } }, - { INDEX_op_movi_i64, { "r" } }, - { INDEX_op_ld8u_i64, { "r", "r" } }, { INDEX_op_ld8s_i64, { "r", "r" } }, { INDEX_op_ld16u_i64, { "r", "r" } }, -- cgit v1.1