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[PULL,34/62] accel/tcg: Use more accurate max_insns for tb_overflow

Message ID 20230301025643.1227244-35-richard.henderson@linaro.org
State Accepted
Commit 9b1890ad901bd22352b8a9598220df51fe8b0d41
Headers show
Series [PULL,01/62] exec/helper-head: Include missing "fpu/softfloat-types.h" header | expand

Commit Message

Richard Henderson March 1, 2023, 2:56 a.m. UTC 
Write back the number of insns that we attempt to translate,
so that if we longjmp out we have a more accurate limit for
the next attempt.  This results in fewer restarts when some
limit is consumed by few instructions.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
 accel/tcg/translator.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/accel/tcg/translator.c b/accel/tcg/translator.c
index f56da8ea30..d0babfea88 100644
--- a/accel/tcg/translator.c
+++ b/accel/tcg/translator.c
@@ -78,7 +78,7 @@  void translator_loop(CPUState *cpu, TranslationBlock *tb, int *max_insns,
     plugin_enabled = plugin_gen_tb_start(cpu, db, cflags & CF_MEMI_ONLY);
 
     while (true) {
-        db->num_insns++;
+        *max_insns = ++db->num_insns;
         ops->insn_start(db, cpu);
         tcg_debug_assert(db->is_jmp == DISAS_NEXT);  /* no early exit */