diff mbox series

[3/9] target/arm: Use insn_start from DisasContextBase

Message ID 20240406223248.502699-4-richard.henderson@linaro.org
State New, archived
Headers show
Series accel/tcg: Fix can_do_io vs 2nd page mmio | expand

Commit Message

Richard Henderson April 6, 2024, 10:32 p.m. UTC 
To keep the multiple update check, replace insn_start
with insn_start_updated.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
 target/arm/tcg/translate.h     | 12 ++++++------
 target/arm/tcg/translate-a64.c |  2 +-
 target/arm/tcg/translate.c     |  2 +-
 3 files changed, 8 insertions(+), 8 deletions(-)

Comments

Philippe Mathieu-Daudé April 8, 2024, 6:16 a.m. UTC | #1 
On 7/4/24 00:32, Richard Henderson wrote:
> To keep the multiple update check, replace insn_start
> with insn_start_updated.
> 
> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
> ---
>   target/arm/tcg/translate.h     | 12 ++++++------
>   target/arm/tcg/translate-a64.c |  2 +-
>   target/arm/tcg/translate.c     |  2 +-
>   3 files changed, 8 insertions(+), 8 deletions(-)

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
diff mbox series

Patch

diff --git a/target/arm/tcg/translate.h b/target/arm/tcg/translate.h
index 93be745cf3..dc66ff2190 100644
--- a/target/arm/tcg/translate.h
+++ b/target/arm/tcg/translate.h
@@ -165,10 +165,10 @@  typedef struct DisasContext {
     uint8_t gm_blocksize;
     /* True if this page is guarded.  */
     bool guarded_page;
+    /* True if the current insn_start has been updated. */
+    bool insn_start_updated;
     /* Bottom two bits of XScale c15_cpar coprocessor access control reg */
     int c15_cpar;
-    /* TCG op of the current insn_start.  */
-    TCGOp *insn_start;
     /* Offset from VNCR_EL2 when FEAT_NV2 redirects this reg to memory */
     uint32_t nv2_redirect_offset;
 } DisasContext;
@@ -276,10 +276,10 @@  static inline void disas_set_insn_syndrome(DisasContext *s, uint32_t syn)
     syn &= ARM_INSN_START_WORD2_MASK;
     syn >>= ARM_INSN_START_WORD2_SHIFT;
 
-    /* We check and clear insn_start_idx to catch multiple updates.  */
-    assert(s->insn_start != NULL);
-    tcg_set_insn_start_param(s->insn_start, 2, syn);
-    s->insn_start = NULL;
+    /* Check for multiple updates.  */
+    assert(!s->insn_start_updated);
+    s->insn_start_updated = true;
+    tcg_set_insn_start_param(s->base.insn_start, 2, syn);
 }
 
 static inline int curr_insn_len(DisasContext *s)
diff --git a/target/arm/tcg/translate-a64.c b/target/arm/tcg/translate-a64.c
index 340265beb0..2666d52711 100644
--- a/target/arm/tcg/translate-a64.c
+++ b/target/arm/tcg/translate-a64.c
@@ -14179,7 +14179,7 @@  static void aarch64_tr_insn_start(DisasContextBase *dcbase, CPUState *cpu)
         pc_arg &= ~TARGET_PAGE_MASK;
     }
     tcg_gen_insn_start(pc_arg, 0, 0);
-    dc->insn_start = tcg_last_op();
+    dc->insn_start_updated = false;
 }
 
 static void aarch64_tr_translate_insn(DisasContextBase *dcbase, CPUState *cpu)
diff --git a/target/arm/tcg/translate.c b/target/arm/tcg/translate.c
index 69585e6003..dc49a8d806 100644
--- a/target/arm/tcg/translate.c
+++ b/target/arm/tcg/translate.c
@@ -9273,7 +9273,7 @@  static void arm_tr_insn_start(DisasContextBase *dcbase, CPUState *cpu)
         condexec_bits = (dc->condexec_cond << 4) | (dc->condexec_mask >> 1);
     }
     tcg_gen_insn_start(pc_arg, condexec_bits, 0);
-    dc->insn_start = tcg_last_op();
+    dc->insn_start_updated = false;
 }
 
 static bool arm_check_kernelpage(DisasContext *dc)