diff mbox series

[PULL,10/43] target/hppa: Skip nullified insns in unconditional dbranch path

Message ID 20240515094043.82850-11-richard.henderson@linaro.org
State Accepted
Commit d08ad0e0f08d3b6561be83beb992b9835aa47895
Headers show
Series [PULL,01/43] target/hppa: Move cpu_get_tb_cpu_state out of line | expand

Commit Message

Richard Henderson May 15, 2024, 9:40 a.m. UTC 
Reviewed-by: Helge Deller <deller@gmx.de>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
 target/hppa/translate.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)
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Patch

diff --git a/target/hppa/translate.c b/target/hppa/translate.c
index 9189e0350b..6c5efb0023 100644
--- a/target/hppa/translate.c
+++ b/target/hppa/translate.c
@@ -1806,11 +1806,17 @@  static bool do_dbranch(DisasContext *ctx, int64_t disp,
 
     if (ctx->null_cond.c == TCG_COND_NEVER && ctx->null_lab == NULL) {
         install_link(ctx, link, false);
-        ctx->iaoq_n = dest;
-        ctx->iaoq_n_var = NULL;
         if (is_n) {
+            if (use_nullify_skip(ctx)) {
+                nullify_set(ctx, 0);
+                gen_goto_tb(ctx, 0, dest, dest + 4);
+                ctx->base.is_jmp = DISAS_NORETURN;
+                return true;
+            }
             ctx->null_cond.c = TCG_COND_ALWAYS;
         }
+        ctx->iaoq_n = dest;
+        ctx->iaoq_n_var = NULL;
     } else {
         nullify_over(ctx);