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| author | Richard Henderson <rth@twiddle.net> | 2014-04-25 15:19:33 -0400 |
|---|---|---|
| committer | Richard Henderson <rth@twiddle.net> | 2014-05-12 11:13:13 -0700 |
| commit | 96d0ee7f0950e725ef7a4f7516e0af6a08d303e0 (patch) | |
| tree | 9fdb8dd5cdaccf7d86ebdfafb69c90a5dd146ead /tcg/sparc | |
| parent | af3cbfbe8018ccc16fb3a0048e928f66f0d05e87 (diff) | |
| download | qemu-96d0ee7f0950e725ef7a4f7516e0af6a08d303e0.tar.gz | |
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 <rth@twiddle.net>
Diffstat (limited to 'tcg/sparc')
| -rw-r--r-- | tcg/sparc/tcg-target.c | 21 |
1 files changed, 3 insertions, 18 deletions
diff --git a/tcg/sparc/tcg-target.c b/tcg/sparc/tcg-target.c index 4f8de1e0fe..17ff5773ad 100644 --- a/tcg/sparc/tcg-target.c +++ b/tcg/sparc/tcg-target.c @@ -1167,15 +1167,6 @@ static void tcg_out_op(TCGContext *s, TCGOpcode opc, tcg_out_nop(s); s->tb_next_offset[a0] = tcg_current_code_size(s); break; - case INDEX_op_call: - if (const_args[0]) { - tcg_out_call(s, (void *)(uintptr_t)a0); - } else { - tcg_out_arithi(s, TCG_REG_O7, a0, 0, JMPL); - /* delay slot */ - tcg_out_nop(s); - } - break; case INDEX_op_br: tcg_out_bpcc(s, COND_A, BPCC_PT, a0); tcg_out_nop(s); @@ -1369,13 +1360,12 @@ static void tcg_out_op(TCGContext *s, TCGOpcode opc, tcg_out_arithc(s, a0, TCG_REG_G0, a1, const_args[1], c); break; + case INDEX_op_mov_i32: /* Always emitted via tcg_out_mov. */ case INDEX_op_mov_i64: - case INDEX_op_mov_i32: + case INDEX_op_movi_i32: /* Always emitted via tcg_out_movi. */ case INDEX_op_movi_i64: - case INDEX_op_movi_i32: - /* Always implemented with tcg_out_mov/i, never with tcg_out_op. */ + case INDEX_op_call: /* Always emitted via tcg_out_call. */ default: - /* Opcode not implemented. */ tcg_abort(); } } @@ -1383,11 +1373,8 @@ static void tcg_out_op(TCGContext *s, TCGOpcode opc, static const TCGTargetOpDef sparc_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" } }, @@ -1424,8 +1411,6 @@ static const TCGTargetOpDef sparc_op_defs[] = { { INDEX_op_mulu2_i32, { "r", "r", "rZ", "rJ" } }, { INDEX_op_muls2_i32, { "r", "r", "rZ", "rJ" } }, - { 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" } }, |