From: Josh Conner <jconner@apple.com>
Date: Mon, 8 Aug 2005 18:30:09 +0000 (+0000)
Subject: re PR rtl-optimization/23241 (Invalid code generated for comparison of uchar to 255)
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=2d88fcc27deb188430c8192197b69e2e1af54631;p=gcc.git

re PR rtl-optimization/23241 (Invalid code generated for comparison of uchar to 255)

	PR rtl-optimization/23241
	* combine.c (simplify_comparison): Fix error in determining
	whether to lift a subreg from comparison.

From-SVN: r102869
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 8df02647f8c..31f287388a2 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2005-08-08  Josh Conner  <jconner@apple.com>
+
+	PR rtl-optimization/23241
+	* combine.c (simplify_comparison): Fix error in determining
+	whether to lift a subreg from comparison.
+
 2005-08-08  David Edelsohn  <edelsohn@gnu.org>
 
 	PR target/18506
diff --git a/gcc/combine.c b/gcc/combine.c
index d5be605751a..5628e24f045 100644
--- a/gcc/combine.c
+++ b/gcc/combine.c
@@ -10239,7 +10239,7 @@ simplify_comparison (enum rtx_code code, rtx *pop0, rtx *pop1)
 		      /* (A - C1) always sign-extends, like C2.  */
 		      && num_sign_bit_copies (a, inner_mode)
 			 > (unsigned int) (GET_MODE_BITSIZE (inner_mode)
-					   - mode_width - 1)))
+					   - (mode_width - 1))))
 		{
 		  op0 = SUBREG_REG (op0);
 		  continue;