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[Qemu-devel] [PATCH 2.3 8/8] tcg: Remove unused opcodes
From: |
Richard Henderson |
Subject: |
[Qemu-devel] [PATCH 2.3 8/8] tcg: Remove unused opcodes |
Date: |
Tue, 11 Nov 2014 17:24:52 +0100 |
We no longer need INDEX_op_end to terminate the list, nor do we
need 5 forms of nop, since we just remove the TCGOp instead.
Signed-off-by: Richard Henderson <address@hidden>
---
tcg/tcg-opc.h | 9 ---------
tcg/tcg.c | 10 ++++------
tci.c | 13 -------------
3 files changed, 4 insertions(+), 28 deletions(-)
diff --git a/tcg/tcg-opc.h b/tcg/tcg-opc.h
index 042d442..42d0cfe 100644
--- a/tcg/tcg-opc.h
+++ b/tcg/tcg-opc.h
@@ -27,15 +27,6 @@
*/
/* predefined ops */
-DEF(end, 0, 0, 0, TCG_OPF_NOT_PRESENT) /* must be kept first */
-DEF(nop, 0, 0, 0, TCG_OPF_NOT_PRESENT)
-DEF(nop1, 0, 0, 1, TCG_OPF_NOT_PRESENT)
-DEF(nop2, 0, 0, 2, TCG_OPF_NOT_PRESENT)
-DEF(nop3, 0, 0, 3, TCG_OPF_NOT_PRESENT)
-
-/* variable number of parameters */
-DEF(nopn, 0, 0, 1, TCG_OPF_NOT_PRESENT)
-
DEF(discard, 1, 0, 0, TCG_OPF_NOT_PRESENT)
DEF(set_label, 0, 0, 1, TCG_OPF_BB_END | TCG_OPF_NOT_PRESENT)
diff --git a/tcg/tcg.c b/tcg/tcg.c
index 50d7af8..e73b8c9 100644
--- a/tcg/tcg.c
+++ b/tcg/tcg.c
@@ -1260,7 +1260,7 @@ void tcg_op_remove(TCGContext *s, TCGOp *op)
s->gen_first_op_idx = next;
}
- *op = (TCGOp){ .opc = INDEX_op_nop, .next = -1, .prev = -1 };
+ memset(op, -1, sizeof(*op));
#ifdef CONFIG_PROFILER
s->del_op_count++;
@@ -1385,8 +1385,6 @@ static void tcg_liveness_analysis(TCGContext *s)
}
break;
case INDEX_op_debug_insn_start:
- case INDEX_op_nop:
- case INDEX_op_end:
break;
case INDEX_op_discard:
/* mark the temporary as dead */
@@ -2244,8 +2242,9 @@ static void dump_op_count(void)
{
int i;
- for(i = INDEX_op_end; i < NB_OPS; i++) {
- qemu_log("%s %" PRId64 "\n", tcg_op_defs[i].name,
tcg_table_op_count[i]);
+ for (i = 0; i < NB_OPS; i++) {
+ qemu_log("%s %" PRId64 "\n", tcg_op_defs[i].name,
+ tcg_table_op_count[i]);
}
}
#endif
@@ -2322,7 +2321,6 @@ static inline int tcg_gen_code_common(TCGContext *s,
tcg_reg_alloc_movi(s, args, dead_args, sync_args);
break;
case INDEX_op_debug_insn_start:
- case INDEX_op_nop:
break;
case INDEX_op_discard:
temp_dead(s, args[0]);
diff --git a/tci.c b/tci.c
index 4711ee4..28292b3 100644
--- a/tci.c
+++ b/tci.c
@@ -506,19 +506,6 @@ uintptr_t tcg_qemu_tb_exec(CPUArchState *env, uint8_t
*tb_ptr)
tb_ptr += 2;
switch (opc) {
- case INDEX_op_end:
- case INDEX_op_nop:
- break;
- case INDEX_op_nop1:
- case INDEX_op_nop2:
- case INDEX_op_nop3:
- case INDEX_op_nopn:
- case INDEX_op_discard:
- TODO();
- break;
- case INDEX_op_set_label:
- TODO();
- break;
case INDEX_op_call:
t0 = tci_read_ri(&tb_ptr);
#if TCG_TARGET_REG_BITS == 32
--
1.9.3
- Re: [Qemu-devel] [PATCH 2.3 2/8] tcg: Reduce ifdefs in tcg-op.c, (continued)
- [Qemu-devel] [PATCH 2.3 4/8] tcg: Introduce tcg_op_buf_count and tcg_op_buf_full, Richard Henderson, 2014/11/11
- [Qemu-devel] [PATCH 2.3 5/8] tcg: Put opcodes in a linked list, Richard Henderson, 2014/11/11
- [Qemu-devel] [PATCH 2.3 6/8] tcg: Remove opcodes instead of noping them out, Richard Henderson, 2014/11/11
- [Qemu-devel] [PATCH 2.3 7/8] tcg: Implement insert_op_before, Richard Henderson, 2014/11/11
- [Qemu-devel] [PATCH 2.3 8/8] tcg: Remove unused opcodes,
Richard Henderson <=
- [Qemu-devel] [PATCH 2.3 1/8] tcg: Move some opcode generation functions out of line, Richard Henderson, 2014/11/11
- Re: [Qemu-devel] [PATCH 2.3 0/8] Linked list for tcg ops, Bastian Koppelmann, 2014/11/14