From: Richard Biener <rguenther@suse.de>
Date: Wed, 29 Jun 2016 13:48:39 +0000 (+0000)
Subject: re PR tree-optimization/15256 ([tree-ssa] Optimize manual bitfield manipilation.)
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=b1206d294ac3bbc2353a6f94e492423e44054059;p=gcc.git

re PR tree-optimization/15256 ([tree-ssa] Optimize manual bitfield manipilation.)

2016-06-29  Richard Biener  <rguenther@suse.de>

	PR middle-end/15256
	* gcc.dg/tree-ssa/forwprop-34.c: New testcase.

From-SVN: r237852
---

diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index c8f96a98732..0c931e03822 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2016-06-29  Richard Biener  <rguenther@suse.de>
+
+	PR middle-end/15256
+	* gcc.dg/tree-ssa/forwprop-34.c: New testcase.
+
 2016-06-29  Matthew Wahab  <matthew.wahab@arm.com>
 
 	* gcc.target/arm/aapcs/neon-vect10.c: Require
diff --git a/gcc/testsuite/gcc.dg/tree-ssa/forwprop-34.c b/gcc/testsuite/gcc.dg/tree-ssa/forwprop-34.c
new file mode 100644
index 00000000000..9aadce6a6a3
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/tree-ssa/forwprop-34.c
@@ -0,0 +1,15 @@
+/* { dg-do compile } */
+/* { dg-options "-O -fdump-tree-cddce1" } */
+
+unsigned int
+foo (unsigned int eax)
+{
+  unsigned int edx = eax & 1;
+  edx ^= 1;
+  eax &= -2;
+  eax |= edx;
+  return eax;
+}
+
+/* { dg-final { scan-tree-dump-times " = " 1 "cddce1" } } */
+/* { dg-final { scan-tree-dump " = eax_\[0-9\]+\\(D\\) \\^ 1;" "cddce1" } } */