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[Qemu-devel] [PATCH v6 18/25] target/s390: Use tcg_gen_lookup_and_goto_p
From: |
Richard Henderson |
Subject: |
[Qemu-devel] [PATCH v6 18/25] target/s390: Use tcg_gen_lookup_and_goto_ptr |
Date: |
Tue, 2 May 2017 12:22:53 -0700 |
Signed-off-by: Richard Henderson <address@hidden>
---
target/s390x/translate.c | 17 ++++++++++++-----
1 file changed, 12 insertions(+), 5 deletions(-)
diff --git a/target/s390x/translate.c b/target/s390x/translate.c
index 01c6217..f7c2123 100644
--- a/target/s390x/translate.c
+++ b/target/s390x/translate.c
@@ -608,11 +608,16 @@ static void gen_op_calc_cc(DisasContext *s)
set_cc_static(s);
}
-static int use_goto_tb(DisasContext *s, uint64_t dest)
+static bool use_exit_tb(DisasContext *s)
{
- if (unlikely(s->singlestep_enabled) ||
- (s->tb->cflags & CF_LAST_IO) ||
- (s->tb->flags & FLAG_MASK_PER)) {
+ return (s->singlestep_enabled ||
+ (s->tb->cflags & CF_LAST_IO) ||
+ (s->tb->flags & FLAG_MASK_PER));
+}
+
+static bool use_goto_tb(DisasContext *s, uint64_t dest)
+{
+ if (unlikely(use_exit_tb(s))) {
return false;
}
#ifndef CONFIG_USER_ONLY
@@ -5426,8 +5431,10 @@ void gen_intermediate_code(CPUS390XState *env, struct
TranslationBlock *tb)
/* Exit the TB, either by raising a debug exception or by return. */
if (do_debug) {
gen_exception(EXCP_DEBUG);
- } else {
+ } else if (use_exit_tb(&dc)) {
tcg_gen_exit_tb(0);
+ } else {
+ tcg_gen_lookup_and_goto_ptr(psw_addr);
}
break;
default:
--
2.9.3
- [Qemu-devel] [PATCH v6 15/25] tcg/s390: Implement goto_ptr, (continued)
- [Qemu-devel] [PATCH v6 15/25] tcg/s390: Implement goto_ptr, Richard Henderson, 2017/05/02
- [Qemu-devel] [PATCH v6 13/25] tcg/aarch64: Implement goto_ptr, Richard Henderson, 2017/05/02
- [Qemu-devel] [PATCH v6 11/25] tb-hash: improve tb_jmp_cache hash function in user mode, Richard Henderson, 2017/05/02
- [Qemu-devel] [PATCH v6 17/25] tcg/arm: Implement goto_ptr, Richard Henderson, 2017/05/02
- [Qemu-devel] [PATCH v6 14/25] tcg/sparc: Implement goto_ptr, Richard Henderson, 2017/05/02
- [Qemu-devel] [PATCH v6 16/25] tcg/arm: Clarify tcg_out_bx for arm4 host, Richard Henderson, 2017/05/02
- [Qemu-devel] [PATCH v6 19/25] target/hppa: Use tcg_gen_lookup_and_goto_ptr, Richard Henderson, 2017/05/02
- [Qemu-devel] [PATCH v6 20/25] target/alpha: Use tcg_gen_lookup_and_goto_ptr, Richard Henderson, 2017/05/02
- [Qemu-devel] [PATCH v6 18/25] target/s390: Use tcg_gen_lookup_and_goto_ptr,
Richard Henderson <=
- [Qemu-devel] [PATCH v6 21/25] target/aarch64: optimize cross-page direct jumps in softmmu, Richard Henderson, 2017/05/02
- [Qemu-devel] [PATCH v6 22/25] target/aarch64: optimize indirect branches, Richard Henderson, 2017/05/02
- [Qemu-devel] [PATCH v6 23/25] tcg/mips: implement goto_ptr, Richard Henderson, 2017/05/02
- [Qemu-devel] [PATCH v6 24/25] target/mips: optimize cross-page direct jumps in softmmu, Richard Henderson, 2017/05/02
- [Qemu-devel] [PATCH v6 25/25] target/mips: optimize indirect branches, Richard Henderson, 2017/05/02
- Re: [Qemu-devel] [PATCH v6 00/25] tcg cross-tb optimizations, no-reply, 2017/05/02
- Re: [Qemu-devel] [PATCH v6 00/25] tcg cross-tb optimizations, Richard Henderson, 2017/05/02