From: Jakub Jelinek <jakub@redhat.com>
Date: Tue, 28 Nov 2017 10:22:31 +0000 (+0100)
Subject: re PR rtl-optimization/81020 (wrong code with -O -fno-tree-bit-ccp -fno-tree-coalesce... 
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=3c88da0dd48b5ec43916614974e45d239236d9cf;p=gcc.git

re PR rtl-optimization/81020 (wrong code with -O -fno-tree-bit-ccp -fno-tree-coalesce-vars -fno-tree-vrp)

	PR rtl-optimization/81020
	* gcc.dg/pr81020.c: New test.

From-SVN: r255193
---

diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index fd6475f31b3..6f3b47585d5 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,5 +1,8 @@
 2017-11-28  Jakub Jelinek  <jakub@redhat.com>
 
+	PR rtl-optimization/81020
+	* gcc.dg/pr81020.c: New test.
+
 	PR tree-optimization/80788
 	* gcc.dg/pr80788.c: New test.
 
diff --git a/gcc/testsuite/gcc.dg/pr81020.c b/gcc/testsuite/gcc.dg/pr81020.c
new file mode 100644
index 00000000000..8789c657a2f
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/pr81020.c
@@ -0,0 +1,23 @@
+/* PR rtl-optimization/81020 */
+/* { dg-do run } */
+/* { dg-options "-O -fno-tree-bit-ccp -fno-tree-coalesce-vars -fno-tree-vrp" } */
+
+unsigned v = 4;
+
+unsigned long long __attribute__((noipa))
+foo (unsigned x)
+{
+  unsigned a = v;
+  a &= 1;
+  x |= 0 < a;
+  a >>= 31;
+  return x + a;
+}
+
+int
+main ()
+{
+  if (foo (2) != 2)
+    __builtin_abort ();
+  return 0;
+}