diff mbox series

[12/15] target/xtensa: always end TB on CCOUNT access/CCOMPARE write

Message ID 20180905014352.970-13-jcmvbkbc@gmail.com (mailing list archive)
State New, archived
Headers show
Series target/xtensa: preparation for FLIX support | expand

Commit Message

Max Filippov Sept. 5, 2018, 1:43 a.m. UTC 
Currently we only end TB in icount mode, because access to CCOUNT or
write to CCOMPARE are IO operations. Simplify the behaviour a bit and
end TB unconditionally.

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
---
 target/xtensa/translate.c | 13 +++++--------
 1 file changed, 5 insertions(+), 8 deletions(-)
diff mbox series

Patch

diff --git a/target/xtensa/translate.c b/target/xtensa/translate.c
index 0af3f1b16792..028b4d4c8652 100644
--- a/target/xtensa/translate.c
+++ b/target/xtensa/translate.c
@@ -505,9 +505,8 @@  static bool gen_rsr_ccount(DisasContext *dc, TCGv_i32 d, uint32_t sr)
     tcg_gen_mov_i32(d, cpu_SR[sr]);
     if (tb_cflags(dc->base.tb) & CF_USE_ICOUNT) {
         gen_io_end();
-        return true;
     }
-    return false;
+    return true;
 }
 
 static bool gen_rsr_ptevaddr(DisasContext *dc, TCGv_i32 d, uint32_t sr)
@@ -735,10 +734,9 @@  static bool gen_wsr_ccount(DisasContext *dc, uint32_t sr, TCGv_i32 v)
     gen_helper_wsr_ccount(cpu_env, v);
     if (tb_cflags(dc->base.tb) & CF_USE_ICOUNT) {
         gen_io_end();
-        gen_jumpi_check_loop_end(dc, 0);
-        return true;
     }
-    return false;
+    gen_jumpi_check_loop_end(dc, 0);
+    return true;
 }
 
 static bool gen_wsr_icount(DisasContext *dc, uint32_t sr, TCGv_i32 v)
@@ -773,10 +771,9 @@  static bool gen_wsr_ccompare(DisasContext *dc, uint32_t sr, TCGv_i32 v)
     tcg_temp_free(tmp);
     if (tb_cflags(dc->base.tb) & CF_USE_ICOUNT) {
         gen_io_end();
-        gen_jumpi_check_loop_end(dc, 0);
-        return true;
     }
-    return false;
+    gen_jumpi_check_loop_end(dc, 0);
+    return true;
 }
 #else
 static void gen_check_interrupts(DisasContext *dc)