From 50e96fc38158a7b8eb6cfefa270cc3262e08d5fc Mon Sep 17 00:00:00 2001
From: jakub <jakub@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Thu, 15 Feb 2018 11:17:05 +0000
Subject: 	PR tree-optimization/84334 	* match.pd ((A +- CST1) +-
 CST2 -> A + CST3): If A is 	also a CONSTANT_CLASS_P, punt.

	* gcc.dg/pr84334.c: New test.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@257683 138bc75d-0d04-0410-961f-82ee72b054a4
---
 gcc/testsuite/gcc.dg/pr84334.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)
 create mode 100644 gcc/testsuite/gcc.dg/pr84334.c

(limited to 'gcc/testsuite/gcc.dg/pr84334.c')

diff --git a/gcc/testsuite/gcc.dg/pr84334.c b/gcc/testsuite/gcc.dg/pr84334.c
new file mode 100644
index 00000000000..8cfde69bd82
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/pr84334.c
@@ -0,0 +1,12 @@
+/* PR tree-optimization/84334 */
+/* { dg-do compile } */
+/* { dg-options "-Ofast -frounding-math" } */
+
+float
+foo (void)
+{
+  float a = 9.999999974752427078783512115478515625e-7f;
+  float b = 1.999999994950485415756702423095703125e-6f;
+  float c = 4.999999873689375817775726318359375e-6f;
+  return a + b + c;
+}
-- 
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