diff mbox series

[25/48] tcg/optimize: Split out fold_deposit

Message ID 20210830062451.639572-26-richard.henderson@linaro.org
State Superseded
Headers show
Series tcg: optimize redundant sign extensions | expand

Commit Message

Richard Henderson Aug. 30, 2021, 6:24 a.m. UTC 
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

---
 tcg/optimize.c | 25 +++++++++++++++----------
 1 file changed, 15 insertions(+), 10 deletions(-)

-- 
2.25.1
diff mbox series

Patch

diff --git a/tcg/optimize.c b/tcg/optimize.c
index c3c66a949e..74c307951d 100644
--- a/tcg/optimize.c
+++ b/tcg/optimize.c
@@ -880,6 +880,18 @@  static bool fold_ctpop(OptContext *ctx, TCGOp *op)
     return fold_const1(ctx, op);
 }
 
+static bool fold_deposit(OptContext *ctx, TCGOp *op)
+{
+    if (arg_is_const(op->args[1]) && arg_is_const(op->args[2])) {
+        uint64_t t1 = arg_info(op->args[1])->val;
+        uint64_t t2 = arg_info(op->args[2])->val;
+
+        t1 = deposit64(t1, op->args[3], op->args[4], t2);
+        return tcg_opt_gen_movi(ctx, op, op->args[0], t1);
+    }
+    return false;
+}
+
 static bool fold_eqv(OptContext *ctx, TCGOp *op)
 {
     return fold_const2(ctx, op);
@@ -1728,16 +1740,6 @@  void tcg_optimize(TCGContext *s)
             }
             break;
 
-        CASE_OP_32_64(deposit):
-            if (arg_is_const(op->args[1]) && arg_is_const(op->args[2])) {
-                tmp = deposit64(arg_info(op->args[1])->val,
-                                op->args[3], op->args[4],
-                                arg_info(op->args[2])->val);
-                tcg_opt_gen_movi(&ctx, op, op->args[0], tmp);
-                continue;
-            }
-            break;
-
         default:
             break;
 
@@ -1765,6 +1767,9 @@  void tcg_optimize(TCGContext *s)
         CASE_OP_32_64(ctpop):
             done = fold_ctpop(&ctx, op);
             break;
+        CASE_OP_32_64(deposit):
+            done = fold_deposit(&ctx, op);
+            break;
         CASE_OP_32_64(div):
         CASE_OP_32_64(divu):
             done = fold_const2(&ctx, op);