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authorAurelien Jarno <aurelien@aurel32.net>2012-09-06 16:47:13 +0200
committerAurelien Jarno <aurelien@aurel32.net>2012-09-11 18:05:52 +0200
commitc5cc28ff8feac21b502d64453c9491ff38f5d62d (patch)
treef78e8426b8c157e1c4246ecc9b1cf935978ae2a7
parent4b1c11fd20e8901f04a2d9c225cd10fc05a762ff (diff)
tcg: improve profiler
Now that there are two passes of optimization (optimize.c, liveness) there is no point of outputing the statistics of the liveness part only. Update the code to take into account both optimizations. Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
-rw-r--r--tcg/tcg.c12
-rw-r--r--tcg/tcg.h1
2 files changed, 12 insertions, 1 deletions
diff --git a/tcg/tcg.c b/tcg/tcg.c
index 8386b70ab..a4e7f42c7 100644
--- a/tcg/tcg.c
+++ b/tcg/tcg.c
@@ -2059,22 +2059,29 @@ static inline int tcg_gen_code_common(TCGContext *s, uint8_t *gen_code_buf,
}
#endif
+#ifdef CONFIG_PROFILER
+ s->opt_time -= profile_getclock();
+#endif
+
#ifdef USE_TCG_OPTIMIZATIONS
gen_opparam_ptr =
tcg_optimize(s, gen_opc_ptr, gen_opparam_buf, tcg_op_defs);
#endif
#ifdef CONFIG_PROFILER
+ s->opt_time += profile_getclock();
s->la_time -= profile_getclock();
#endif
+
tcg_liveness_analysis(s);
+
#ifdef CONFIG_PROFILER
s->la_time += profile_getclock();
#endif
#ifdef DEBUG_DISAS
if (unlikely(qemu_loglevel_mask(CPU_LOG_TB_OP_OPT))) {
- qemu_log("OP after liveness analysis:\n");
+ qemu_log("OP after optimization and liveness analysis:\n");
tcg_dump_ops(s);
qemu_log("\n");
}
@@ -2241,6 +2248,9 @@ void tcg_dump_info(FILE *f, fprintf_function cpu_fprintf)
(double)s->interm_time / tot * 100.0);
cpu_fprintf(f, " gen_code time %0.1f%%\n",
(double)s->code_time / tot * 100.0);
+ cpu_fprintf(f, "optim./code time %0.1f%%\n",
+ (double)s->opt_time / (s->code_time ? s->code_time : 1)
+ * 100.0);
cpu_fprintf(f, "liveness/code time %0.1f%%\n",
(double)s->la_time / (s->code_time ? s->code_time : 1) * 100.0);
cpu_fprintf(f, "cpu_restore count %" PRId64 "\n",
diff --git a/tcg/tcg.h b/tcg/tcg.h
index d710694e0..7a72729f3 100644
--- a/tcg/tcg.h
+++ b/tcg/tcg.h
@@ -382,6 +382,7 @@ struct TCGContext {
int64_t interm_time;
int64_t code_time;
int64_t la_time;
+ int64_t opt_time;
int64_t restore_count;
int64_t restore_time;
#endif