From: Richard Guenther <rguenther@suse.de>
Date: Wed, 8 Feb 2012 13:29:22 +0000 (+0000)
Subject: re PR rtl-optimization/52170 (ICE in trunc_int_for_mode, at explow.c:57 during simpli... 
X-Git-Tag: releases/gcc-4.7.0~508
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=ea72cc1dcab80a27beb22a2c9f0b4110392ec56d;p=thirdparty%2Fgcc.git

re PR rtl-optimization/52170 (ICE in trunc_int_for_mode, at explow.c:57 during simplify_plus_minus)

2012-02-08  Richard Guenther  <rguenther@suse.de>

	PR rtl-optimization/52170
	* simplify-rtx.c (simplify_plus_minus): Use CONSTM1_RTX to
	properly handle integer vector modes.

	* gcc.dg/torture/pr52170.c: New testcase.

From-SVN: r184007
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index fcea3cfb7fea..71cdd934b69b 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2012-02-08  Richard Guenther  <rguenther@suse.de>
+
+	PR rtl-optimization/52170
+	* simplify-rtx.c (simplify_plus_minus): Use CONSTM1_RTX to
+	properly handle integer vector modes.
+
 2012-02-08  Jakub Jelinek  <jakub@redhat.com>
 
 	PR gcov-profile/52150
diff --git a/gcc/simplify-rtx.c b/gcc/simplify-rtx.c
index 6733b84d572d..bba565ddfd39 100644
--- a/gcc/simplify-rtx.c
+++ b/gcc/simplify-rtx.c
@@ -3947,7 +3947,7 @@ simplify_plus_minus (enum rtx_code code, enum machine_mode mode, rtx op0,
 	      /* ~a -> (-a - 1) */
 	      if (n_ops != 7)
 		{
-		  ops[n_ops].op = constm1_rtx;
+		  ops[n_ops].op = CONSTM1_RTX (mode);
 		  ops[n_ops++].neg = this_neg;
 		  ops[i].op = XEXP (this_op, 0);
 		  ops[i].neg = !this_neg;
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 6cedc9e1d098..7928ea12cb5f 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2012-02-08  Richard Guenther  <rguenther@suse.de>
+
+	PR rtl-optimization/52170
+	* gcc.dg/torture/pr52170.c: New testcase.
+
 2012-02-08  Jakub Jelinek  <jakub@redhat.com>
 
 	PR gcov-profile/52150
diff --git a/gcc/testsuite/gcc.dg/torture/pr52170.c b/gcc/testsuite/gcc.dg/torture/pr52170.c
new file mode 100644
index 000000000000..3d0a038893d6
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/torture/pr52170.c
@@ -0,0 +1,17 @@
+/* { dg-do compile } */
+
+typedef unsigned char uint8_t ;
+typedef unsigned long uint32_t;
+void f0a(uint32_t * result, uint32_t * arg1)
+{
+  int idx;
+  for (idx=0;idx<96;idx += 1)
+    {
+      uint8_t temp_5;
+      uint8_t temp_6;
+
+      temp_5 = ~(*arg1);
+      temp_6 = (*arg1) + 1 - temp_5;
+      result[idx] = temp_6;
+    }
+}