From: Jason Merrill <merrill@gnu.org>
Date: Fri, 13 May 1994 20:30:24 +0000 (+0000)
Subject: (truthvalue_conversion): If expr is a BIT_AND_EXPR
X-Git-Tag: misc/cutover-egcs-0~6650
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=fb48b1f0d36f8a1116ef259a1976507a71559e5b;p=thirdparty%2Fgcc.git

(truthvalue_conversion): If expr is a BIT_AND_EXPR
        where one of the operands is integer_onep, just return expr.

From-SVN: r7293
---

diff --git a/gcc/c-common.c b/gcc/c-common.c
index 7e5c6f1403e6..425f92e0a752 100644
--- a/gcc/c-common.c
+++ b/gcc/c-common.c
@@ -1862,6 +1862,10 @@ truthvalue_conversion (expr)
 					    TREE_TYPE (TREE_OPERAND (expr, 0)),
 					    TREE_OPERAND (expr, 1))), 1);
 
+    case BIT_AND_EXPR:
+      if (integer_onep (TREE_OPERAND (expr, 1)))
+	return expr;
+
     case MODIFY_EXPR:
       if (warn_parentheses && C_EXP_ORIGINAL_CODE (expr) == MODIFY_EXPR)
 	warning ("suggest parentheses around assignment used as truth value");