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From: Richard Henderson <richard.henderson@linaro.org>
To: qemu-devel@nongnu.org
Cc: edgar.iglesias@gmail.com
Subject: [PATCH v3 09/15] target/cris: Fold unhandled X_FLAG changes into cpustate_changed
Date: Tue, 22 Jun 2021 08:48:14 -0700	[thread overview]
Message-ID: <20210622154820.1978982-10-richard.henderson@linaro.org> (raw)
In-Reply-To: <20210622154820.1978982-1-richard.henderson@linaro.org>

We really do this already, by including them into the same test.
This just hoists the expression up a bit.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
 target/cris/translate.c | 13 ++++++-------
 1 file changed, 6 insertions(+), 7 deletions(-)

diff --git a/target/cris/translate.c b/target/cris/translate.c
index e14b7acb10..80276ae84d 100644
--- a/target/cris/translate.c
+++ b/target/cris/translate.c
@@ -3217,6 +3217,10 @@ static void cris_tr_translate_insn(DisasContextBase *dcbase, CPUState *cs)
         cris_clear_x_flag(dc);
     }
 
+    /* Fold unhandled changes to X_FLAG into cpustate_changed. */
+    dc->cpustate_changed |= !dc->flagx_known;
+    dc->cpustate_changed |= dc->flags_x != (dc->base.tb->flags & X_FLAG);
+
     /*
      * Check for delayed branches here.  If we do it before
      * actually generating any host code, the simulator will just
@@ -3227,9 +3231,7 @@ static void cris_tr_translate_insn(DisasContextBase *dcbase, CPUState *cs)
             t_gen_movi_env_TN(dslot, 0);
         }
 
-        if (dc->cpustate_changed
-            || !dc->flagx_known
-            || (dc->flags_x != (dc->base.tb->flags & X_FLAG))) {
+        if (dc->cpustate_changed) {
             cris_store_direct_jmp(dc);
         }
 
@@ -3263,10 +3265,7 @@ static void cris_tr_translate_insn(DisasContextBase *dcbase, CPUState *cs)
     }
 
     /* Force an update if the per-tb cpu state has changed.  */
-    if (dc->base.is_jmp == DISAS_NEXT
-        && (dc->cpustate_changed
-            || !dc->flagx_known
-            || (dc->flags_x != (dc->base.tb->flags & X_FLAG)))) {
+    if (dc->base.is_jmp == DISAS_NEXT && dc->cpustate_changed) {
         dc->base.is_jmp = DISAS_UPDATE;
         tcg_gen_movi_tl(env_pc, dc->pc);
     }
-- 
2.25.1



  parent reply	other threads:[~2021-06-22 15:53 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-06-22 15:48 [PATCH v3 00/15] target/cris: Convert to TranslatorOps Richard Henderson
2021-06-22 15:48 ` [PATCH v3 01/15] target/cris: Add DisasContextBase to DisasContext Richard Henderson
2021-06-22 15:48 ` [PATCH v3 02/15] target/cris: Remove DISAS_SWI Richard Henderson
2021-06-22 15:48 ` [PATCH v3 03/15] target/cris: Replace DISAS_TB_JUMP with DISAS_NORETURN Richard Henderson
2021-06-22 15:48 ` [PATCH v3 04/15] target/cris: Mark exceptions as DISAS_NORETURN Richard Henderson
2021-06-22 15:48 ` [PATCH v3 05/15] target/cris: Fix use_goto_tb Richard Henderson
2021-06-22 15:48 ` [PATCH v3 06/15] target/cris: Convert to TranslatorOps Richard Henderson
2021-06-22 15:48 ` [PATCH v3 07/15] target/cris: Mark helper_raise_exception noreturn Richard Henderson
2021-06-22 15:48 ` [PATCH v3 08/15] target/cris: Mark static arrays const Richard Henderson
2021-06-22 15:48 ` Richard Henderson [this message]
2021-06-22 15:48 ` [PATCH v3 10/15] target/cris: Add DISAS_UPDATE_NEXT Richard Henderson
2021-06-22 15:48 ` [PATCH v3 11/15] target/cris: Add DISAS_DBRANCH Richard Henderson
2021-06-23 13:43   ` Edgar E. Iglesias
2021-06-23 13:55     ` Richard Henderson
2021-06-23 14:17       ` Edgar E. Iglesias
2021-06-28 14:56         ` Richard Henderson
2021-06-22 15:48 ` [PATCH v3 12/15] target/cris: Use tcg_gen_lookup_and_goto_ptr Richard Henderson
2021-06-22 15:48 ` [PATCH v3 13/15] target/cris: Improve JMP_INDIRECT Richard Henderson
2021-06-22 15:48 ` [PATCH v3 14/15] target/cris: Remove dc->flagx_known Richard Henderson
2021-06-22 15:48 ` [PATCH v3 15/15] target/cris: Do not exit tb for X_FLAG changes Richard Henderson

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