From: Uros Bizjak <ubizjak@gmail.com>
Date: Wed, 1 Oct 2014 16:57:15 +0000 (+0200)
Subject: Backport from mainline
X-Git-Tag: releases/gcc-4.8.4~198
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=651de0f23c09c391b68b27f140708130bdfd5ce9;p=thirdparty%2Fgcc.git

Backport from mainline
	2013-11-07  Joseph Myers  <joseph@codesourcery.com>

	* lib/target-supports.exp
	(check_effective_target_fenv_exceptions): New function.

From-SVN: r215769
---

diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 7bcdf7a9e00a..e06517d20eab 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,11 @@
+2014-10-01  Uros Bizjak  <ubizjak@gmail.com>
+
+	Backport from mainline
+	2013-11-07  Joseph Myers  <joseph@codesourcery.com>
+
+	* lib/target-supports.exp
+	(check_effective_target_fenv_exceptions): New function.
+
 2014-09-30  Jakub Jelinek  <jakub@redhat.com>
 
 	PR inline-asm/63282
diff --git a/gcc/testsuite/lib/target-supports.exp b/gcc/testsuite/lib/target-supports.exp
index a76968202c84..d4bda1f8767c 100644
--- a/gcc/testsuite/lib/target-supports.exp
+++ b/gcc/testsuite/lib/target-supports.exp
@@ -5338,3 +5338,40 @@ proc check_effective_target_aarch64_large { } {
 	return 0
     }
 }
+
+# Return 1 if <fenv.h> is available with all the standard IEEE
+# exceptions and floating-point exceptions are raised by arithmetic
+# operations.  (If the target requires special options for "inexact"
+# exceptions, those need to be specified in the testcases.)
+
+proc check_effective_target_fenv_exceptions {} {
+    return [check_runtime fenv_exceptions {
+	#include <fenv.h>
+	#include <stdlib.h>
+	#ifndef FE_DIVBYZERO
+	# error Missing FE_DIVBYZERO
+	#endif
+	#ifndef FE_INEXACT
+	# error Missing FE_INEXACT
+	#endif
+	#ifndef FE_INVALID
+	# error Missing FE_INVALID
+	#endif
+	#ifndef FE_OVERFLOW
+	# error Missing FE_OVERFLOW
+	#endif
+	#ifndef FE_UNDERFLOW
+	# error Missing FE_UNDERFLOW
+	#endif
+	volatile float a = 0.0f, r;
+	int
+	main (void)
+	{
+	  r = a / a;
+	  if (fetestexcept (FE_INVALID))
+	    exit (0);
+	  else
+	    abort ();
+	}
+    } [add_options_for_ieee "-std=gnu99"]]
+}