PR target/49781

[pf3gnuchains/gcc-fork.git] / gcc / config / i386 / predicates.md

diff --git a/gcc/config/i386/predicates.md b/gcc/config/i386/predicates.md
index cfcd061..bc0a357 100644 (file)
--- a/gcc/config/i386/predicates.md
+++ b/gcc/config/i386/predicates.md
@@ -597,6 +597,12 @@
   (and (match_code "const_int")
        (match_test "INTVAL (op) == 128")))
 
+;; Match exactly 0x0FFFFFFFF in anddi as a zero-extension operation
+(define_predicate "const_32bit_mask"
+  (and (match_code "const_int")
+       (match_test "trunc_int_for_mode (INTVAL (op), DImode)
+                   == (HOST_WIDE_INT) 0xffffffff")))
+
 ;; Match 2, 4, or 8.  Used for leal multiplicands.
 (define_predicate "const248_operand"
   (match_code "const_int")
@@ -802,7 +808,8 @@
   int ok;
 
   /*  LEA handles zero-extend by itself.  */
-  if (GET_CODE (op) == ZERO_EXTEND)
+  if (GET_CODE (op) == ZERO_EXTEND
+      || GET_CODE (op) == AND)
     return false;
 
   ok = ix86_decompose_address (op, &parts);