From 80d99aa20cd0e8fa519c3fe1e4e7402931dfa4cb Mon Sep 17 00:00:00 2001
From: Sebastian Huber <sebastian.huber@embedded-brains.de>
Date: Mon, 1 Dec 2014 08:20:55 +0100
Subject: libtests/complex,math: Prevent optimizations

For constant arguments GCC calculates the values of the math library
functions at compile-time.

close #1741
---
 testsuites/libtests/complex/docomplex.h | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'testsuites/libtests/complex/docomplex.h')

diff --git a/testsuites/libtests/complex/docomplex.h b/testsuites/libtests/complex/docomplex.h
index 96ce9eb1a9..c844cc0906 100644
--- a/testsuites/libtests/complex/docomplex.h
+++ b/testsuites/libtests/complex/docomplex.h
@@ -25,11 +25,13 @@
 
 extern void FUNC(docomplex) (void);
 
+volatile complex FTYPE ca, cb;
+
 void
 FUNC(docomplex) (void)
 {
 #ifndef PROVIDE_EMPTY_FUNC
-  complex FTYPE ca, cb, cc;
+  complex FTYPE cc;
   FTYPE f1;
 
   ca = 1.0 + 1.0 * I;
-- 
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