diff mbox series

[v3,24/48] tcg/optimize: Split out fold_extract, fold_sextract

Message ID 20211021210539.825582-25-richard.henderson@linaro.org
State Superseded
Headers show
Series tcg: optimize redundant sign extensions | expand

Commit Message

Richard Henderson Oct. 21, 2021, 9:05 p.m. UTC 
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

---
 tcg/optimize.c | 48 ++++++++++++++++++++++++++++++------------------
 1 file changed, 30 insertions(+), 18 deletions(-)

-- 
2.25.1

Comments

Philippe Mathieu-Daudé Oct. 22, 2021, 2:08 p.m. UTC | #1 
On 10/21/21 23:05, Richard Henderson wrote:
> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

> ---

>  tcg/optimize.c | 48 ++++++++++++++++++++++++++++++------------------

>  1 file changed, 30 insertions(+), 18 deletions(-)


Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Luis Fernando Fujita Pires Oct. 22, 2021, 5:34 p.m. UTC | #2 
From: Richard Henderson <richard.henderson@linaro.org>

> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

> ---

>  tcg/optimize.c | 48 ++++++++++++++++++++++++++++++------------------

>  1 file changed, 30 insertions(+), 18 deletions(-)


Reviewed-by: Luis Pires <luis.pires@eldorado.org.br>


--
Luis Pires
Instituto de Pesquisas ELDORADO
Aviso Legal - Disclaimer <https://www.eldorado.org.br/disclaimer.html>
diff mbox series

Patch

diff --git a/tcg/optimize.c b/tcg/optimize.c
index 885380bb22..3fffc5b200 100644
--- a/tcg/optimize.c
+++ b/tcg/optimize.c
@@ -883,6 +883,18 @@  static bool fold_eqv(OptContext *ctx, TCGOp *op)
     return fold_const2(ctx, op);
 }
 
+static bool fold_extract(OptContext *ctx, TCGOp *op)
+{
+    if (arg_is_const(op->args[1])) {
+        uint64_t t;
+
+        t = arg_info(op->args[1])->val;
+        t = extract64(t, op->args[2], op->args[3]);
+        return tcg_opt_gen_movi(ctx, op, op->args[0], t);
+    }
+    return false;
+}
+
 static bool fold_extract2(OptContext *ctx, TCGOp *op)
 {
     if (arg_is_const(op->args[1]) && arg_is_const(op->args[2])) {
@@ -1111,6 +1123,18 @@  static bool fold_setcond2(OptContext *ctx, TCGOp *op)
     return tcg_opt_gen_movi(ctx, op, op->args[0], i);
 }
 
+static bool fold_sextract(OptContext *ctx, TCGOp *op)
+{
+    if (arg_is_const(op->args[1])) {
+        uint64_t t;
+
+        t = arg_info(op->args[1])->val;
+        t = sextract64(t, op->args[2], op->args[3]);
+        return tcg_opt_gen_movi(ctx, op, op->args[0], t);
+    }
+    return false;
+}
+
 static bool fold_shift(OptContext *ctx, TCGOp *op)
 {
     return fold_const2(ctx, op);
@@ -1712,24 +1736,6 @@  void tcg_optimize(TCGContext *s)
             }
             break;
 
-        CASE_OP_32_64(extract):
-            if (arg_is_const(op->args[1])) {
-                tmp = extract64(arg_info(op->args[1])->val,
-                                op->args[2], op->args[3]);
-                tcg_opt_gen_movi(&ctx, op, op->args[0], tmp);
-                continue;
-            }
-            break;
-
-        CASE_OP_32_64(sextract):
-            if (arg_is_const(op->args[1])) {
-                tmp = sextract64(arg_info(op->args[1])->val,
-                                 op->args[2], op->args[3]);
-                tcg_opt_gen_movi(&ctx, op, op->args[0], tmp);
-                continue;
-            }
-            break;
-
         default:
             break;
 
@@ -1764,6 +1770,9 @@  void tcg_optimize(TCGContext *s)
         CASE_OP_32_64(eqv):
             done = fold_eqv(&ctx, op);
             break;
+        CASE_OP_32_64(extract):
+            done = fold_extract(&ctx, op);
+            break;
         CASE_OP_32_64(extract2):
             done = fold_extract2(&ctx, op);
             break;
@@ -1839,6 +1848,9 @@  void tcg_optimize(TCGContext *s)
         case INDEX_op_setcond2_i32:
             done = fold_setcond2(&ctx, op);
             break;
+        CASE_OP_32_64(sextract):
+            done = fold_sextract(&ctx, op);
+            break;
         CASE_OP_32_64_VEC(sub):
             done = fold_sub(&ctx, op);
             break;