[v3,33/38] target-microblaze: Use table based condition-codes conversion

Commit Message

Edgar E. Iglesias May 16, 2018, 6:51 p.m. UTC

From: "Edgar E. Iglesias" <[e-mail]>

Use a table based conversion to map condition-codes between
MicroBlaze ISA encoding and TCG.
No functional change.

Reviewed-by: Richard Henderson <[e-mail]>
Signed-off-by: Edgar E. Iglesias <[e-mail]>
---
 target/microblaze/translate.c | 41 ++++++++++++++++++++---------------------
 1 file changed, 20 insertions(+), 21 deletions(-)

Patch

diff --git a/target/microblaze/translate.c b/target/microblaze/translate.c
index 44395cf189..ed0b6fa881 100644
--- a/target/microblaze/translate.c
+++ b/target/microblaze/translate.c
@@ -1145,28 +1145,27 @@  static void dec_store(DisasContext *dc)
 static inline void eval_cc(DisasContext *dc, unsigned int cc,
                            TCGv_i32 d, TCGv_i32 a, TCGv_i32 b)
 {
+    static const int mb_to_tcg_cc[] = {
+        [CC_EQ] = TCG_COND_EQ,
+        [CC_NE] = TCG_COND_NE,
+        [CC_LT] = TCG_COND_LT,
+        [CC_LE] = TCG_COND_LE,
+        [CC_GE] = TCG_COND_GE,
+        [CC_GT] = TCG_COND_GT,
+    };
+
     switch (cc) {
-        case CC_EQ:
-            tcg_gen_setcond_i32(TCG_COND_EQ, d, a, b);
-            break;
-        case CC_NE:
-            tcg_gen_setcond_i32(TCG_COND_NE, d, a, b);
-            break;
-        case CC_LT:
-            tcg_gen_setcond_i32(TCG_COND_LT, d, a, b);
-            break;
-        case CC_LE:
-            tcg_gen_setcond_i32(TCG_COND_LE, d, a, b);
-            break;
-        case CC_GE:
-            tcg_gen_setcond_i32(TCG_COND_GE, d, a, b);
-            break;
-        case CC_GT:
-            tcg_gen_setcond_i32(TCG_COND_GT, d, a, b);
-            break;
-        default:
-            cpu_abort(CPU(dc->cpu), "Unknown condition code %x.\n", cc);
-            break;
+    case CC_EQ:
+    case CC_NE:
+    case CC_LT:
+    case CC_LE:
+    case CC_GE:
+    case CC_GT:
+        tcg_gen_setcond_i32(mb_to_tcg_cc[cc], d, a, b);
+        break;
+    default:
+        cpu_abort(CPU(dc->cpu), "Unknown condition code %x.\n", cc);
+        break;
     }
 }