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[Qemu-devel] [PATCH v2 33/45] tcg: take .helpers out of TCGContext
From: |
Emilio G. Cota |
Subject: |
[Qemu-devel] [PATCH v2 33/45] tcg: take .helpers out of TCGContext |
Date: |
Sun, 16 Jul 2017 16:04:16 -0400 |
Groundwork for supporting multiple TCG contexts.
The hash table becomes read-only after it is filled in,
so we can save space by keeping just a global pointer to it.
Reviewed-by: Richard Henderson <address@hidden>
Reviewed-by: Alex Bennée <address@hidden>
Signed-off-by: Emilio G. Cota <address@hidden>
---
tcg/tcg.h | 2 --
tcg/tcg.c | 10 +++++-----
2 files changed, 5 insertions(+), 7 deletions(-)
diff --git a/tcg/tcg.h b/tcg/tcg.h
index 1090285..7cbe802 100644
--- a/tcg/tcg.h
+++ b/tcg/tcg.h
@@ -664,8 +664,6 @@ struct TCGContext {
tcg_insn_unit *code_ptr;
- GHashTable *helpers;
-
#ifdef CONFIG_PROFILER
/* profiling info */
int64_t tb_count1;
diff --git a/tcg/tcg.c b/tcg/tcg.c
index 28c1b94..c0c2d6c 100644
--- a/tcg/tcg.c
+++ b/tcg/tcg.c
@@ -319,6 +319,7 @@ typedef struct TCGHelperInfo {
static const TCGHelperInfo all_helpers[] = {
#include "exec/helper-tcg.h"
};
+static GHashTable *helper_table;
static int indirect_reg_alloc_order[ARRAY_SIZE(tcg_target_reg_alloc_order)];
static void process_op_defs(TCGContext *s);
@@ -329,7 +330,6 @@ void tcg_context_init(TCGContext *s)
TCGOpDef *def;
TCGArgConstraint *args_ct;
int *sorted_args;
- GHashTable *helper_table;
memset(s, 0, sizeof(*s));
s->nb_globals = 0;
@@ -357,7 +357,7 @@ void tcg_context_init(TCGContext *s)
/* Register helpers. */
/* Use g_direct_hash/equal for direct pointer comparisons on func. */
- s->helpers = helper_table = g_hash_table_new(NULL, NULL);
+ helper_table = g_hash_table_new(NULL, NULL);
for (i = 0; i < ARRAY_SIZE(all_helpers); ++i) {
g_hash_table_insert(helper_table, (gpointer)all_helpers[i].func,
@@ -761,7 +761,7 @@ void tcg_gen_callN(TCGContext *s, void *func, TCGArg ret,
unsigned sizemask, flags;
TCGHelperInfo *info;
- info = g_hash_table_lookup(s->helpers, (gpointer)func);
+ info = g_hash_table_lookup(helper_table, (gpointer)func);
flags = info->flags;
sizemask = info->sizemask;
@@ -990,8 +990,8 @@ static char *tcg_get_arg_str_idx(TCGContext *s, char *buf,
static inline const char *tcg_find_helper(TCGContext *s, uintptr_t val)
{
const char *ret = NULL;
- if (s->helpers) {
- TCGHelperInfo *info = g_hash_table_lookup(s->helpers, (gpointer)val);
+ if (helper_table) {
+ TCGHelperInfo *info = g_hash_table_lookup(helper_table, (gpointer)val);
if (info) {
ret = info->name;
}
--
2.7.4
- [Qemu-devel] [PATCH v2 20/45] target/sparc: check CF_PARALLEL instead of parallel_cpus, (continued)
- [Qemu-devel] [PATCH v2 20/45] target/sparc: check CF_PARALLEL instead of parallel_cpus, Emilio G. Cota, 2017/07/16
- [Qemu-devel] [PATCH v2 11/45] exec-all: bring tb->invalid into tb->cflags, Emilio G. Cota, 2017/07/16
- [Qemu-devel] [PATCH v2 09/45] tcg/mips: constify tcg_target_callee_save_regs, Emilio G. Cota, 2017/07/16
- [Qemu-devel] [PATCH v2 23/45] translate-all: define and use DEBUG_TB_FLUSH_GATE, Emilio G. Cota, 2017/07/16
- [Qemu-devel] [PATCH v2 22/45] cpu-exec: lookup/generate TB outside exclusive region during step_atomic, Emilio G. Cota, 2017/07/16
- [Qemu-devel] [PATCH v2 33/45] tcg: take .helpers out of TCGContext,
Emilio G. Cota <=
- [Qemu-devel] [PATCH v2 26/45] translate-all: define and use DEBUG_TB_CHECK_GATE, Emilio G. Cota, 2017/07/16
- [Qemu-devel] [PATCH v2 18/45] target/m68k: check CF_PARALLEL instead of parallel_cpus, Emilio G. Cota, 2017/07/16
- [Qemu-devel] [PATCH v2 39/45] osdep: move qemu_real_host_page_size/mask to osdep, Emilio G. Cota, 2017/07/16
- [Qemu-devel] [PATCH v2 37/45] tcg: introduce **tcg_ctxs to keep track of all TCGContext's, Emilio G. Cota, 2017/07/16
- [Qemu-devel] [PATCH v2 40/45] osdep: introduce qemu_mprotect_rwx/none, Emilio G. Cota, 2017/07/16