target/xtensa: Drop reset_sar_tracker

Translators are no longer required to free tcg temporaries.
Remove sar_m32_allocated, as sar_m32 non-null is equivalent.

Reviewed-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

diff --git a/target/xtensa/translate.c b/target/xtensa/translate.c
index 4af0650deb9887e7d4063a995dac0be2a20b19ac..910350dec6fb4ac2da42aa9f617d808e6911b6e2 100644 (file)
--- a/target/xtensa/translate.c
+++ b/target/xtensa/translate.c
@@ -57,7 +57,6 @@ struct DisasContext {
 
     bool sar_5bit;
     bool sar_m32_5bit;
-    bool sar_m32_allocated;
     TCGv_i32 sar_m32;
 
     unsigned window;
@@ -284,14 +283,7 @@ static void init_sar_tracker(DisasContext *dc)
 {
     dc->sar_5bit = false;
     dc->sar_m32_5bit = false;
-    dc->sar_m32_allocated = false;
-}
-
-static void reset_sar_tracker(DisasContext *dc)
-{
-    if (dc->sar_m32_allocated) {
-        tcg_temp_free(dc->sar_m32);
-    }
+    dc->sar_m32 = NULL;
 }
 
 static void gen_right_shift_sar(DisasContext *dc, TCGv_i32 sa)
@@ -306,9 +298,8 @@ static void gen_right_shift_sar(DisasContext *dc, TCGv_i32 sa)
 
 static void gen_left_shift_sar(DisasContext *dc, TCGv_i32 sa)
 {
-    if (!dc->sar_m32_allocated) {
+    if (!dc->sar_m32) {
         dc->sar_m32 = tcg_temp_new_i32();
-        dc->sar_m32_allocated = true;
     }
     tcg_gen_andi_i32(dc->sar_m32, sa, 0x1f);
     tcg_gen_sub_i32(cpu_SR[SAR], tcg_constant_i32(32), dc->sar_m32);
@@ -1247,7 +1238,6 @@ static void xtensa_tr_tb_stop(DisasContextBase *dcbase, CPUState *cpu)
 {
     DisasContext *dc = container_of(dcbase, DisasContext, base);
 
-    reset_sar_tracker(dc);
     if (dc->icount) {
         tcg_temp_free(dc->next_icount);
     }