target/arm: Drop DisasContext.tmp_a64

Translators are no longer required to free tcg temporaries,
therefore there's no need to record temps for later freeing.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

diff --git a/target/arm/tcg/translate-a64.c b/target/arm/tcg/translate-a64.c
index d1e677ca763e6eb5b1f59bdb1f7a1076d142e3cc..ea1f23b2e7871aa4a075974d7d47ea169bcfbe26 100644 (file)
--- a/target/arm/tcg/translate-a64.c
+++ b/target/arm/tcg/translate-a64.c
@@ -408,27 +408,9 @@ static void gen_goto_tb(DisasContext *s, int n, int64_t diff)
     }
 }
 
-static void init_tmp_a64_array(DisasContext *s)
-{
-#ifdef CONFIG_DEBUG_TCG
-    memset(s->tmp_a64, 0, sizeof(s->tmp_a64));
-#endif
-    s->tmp_a64_count = 0;
-}
-
-static void free_tmp_a64(DisasContext *s)
-{
-    int i;
-    for (i = 0; i < s->tmp_a64_count; i++) {
-        tcg_temp_free_i64(s->tmp_a64[i]);
-    }
-    init_tmp_a64_array(s);
-}
-
 TCGv_i64 new_tmp_a64(DisasContext *s)
 {
-    assert(s->tmp_a64_count < TMP_A64_MAX);
-    return s->tmp_a64[s->tmp_a64_count++] = tcg_temp_new_i64();
+    return tcg_temp_new_i64();
 }
 
 TCGv_i64 new_tmp_a64_zero(DisasContext *s)
@@ -14781,8 +14763,6 @@ static void aarch64_tr_init_disas_context(DisasContextBase *dcbase,
         bound = 1;
     }
     dc->base.max_insns = MIN(dc->base.max_insns, bound);
-
-    init_tmp_a64_array(dc);
 }
 
 static void aarch64_tr_tb_start(DisasContextBase *db, CPUState *cpu)
@@ -14938,9 +14918,6 @@ static void aarch64_tr_translate_insn(DisasContextBase *dcbase, CPUState *cpu)
         break;
     }
 
-    /* if we allocated any temporaries, free them here */
-    free_tmp_a64(s);
-
     /*
      * After execution of most insns, btype is reset to 0.
      * Note that we set btype == -1 when the insn sets btype.

diff --git a/target/arm/tcg/translate.h b/target/arm/tcg/translate.h
index 853a0b84e6ff271557cc887861894de7d4c65072..a5dd518903c39436653401a9aa70b3530ea43deb 100644 (file)
--- a/target/arm/tcg/translate.h
+++ b/target/arm/tcg/translate.h
@@ -149,9 +149,6 @@ typedef struct DisasContext {
     int c15_cpar;
     /* TCG op of the current insn_start.  */
     TCGOp *insn_start;
-#define TMP_A64_MAX 16
-    int tmp_a64_count;
-    TCGv_i64 tmp_a64[TMP_A64_MAX];
 } DisasContext;
 
 typedef struct DisasCompare {