From: Tom de Vries <tdevries@suse.de>
Date: Sun, 1 Jul 2018 15:54:48 +0000 (+0000)
Subject: [testsuite/guality] Prevent optimization of local in vla-1.c
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=81d3b8f7029f8790211628e308a766783193a8ef;p=gcc.git

[testsuite/guality] Prevent optimization of local in vla-1.c

2018-07-01  Tom de Vries  <tdevries@suse.de>

	* gcc.dg/guality/prevent-optimization.h (VOLATILE): Define.
	* gcc.dg/guality/vla-1.c (f1): Mark local vla a as VOLATILE.

From-SVN: r262287
---

diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index d24b0b4e430..b8b00f5f875 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2018-07-01  Tom de Vries  <tdevries@suse.de>
+
+	* gcc.dg/guality/prevent-optimization.h (VOLATILE): Define.
+	* gcc.dg/guality/vla-1.c (f1): Mark local vla a as VOLATILE.
+
 2018-07-01  Tom de Vries  <tdevries@suse.de>
 
 	* lib/gcc-dg.exp (get-absolute-line): Handle '.'.
diff --git a/gcc/testsuite/gcc.dg/guality/prevent-optimization.h b/gcc/testsuite/gcc.dg/guality/prevent-optimization.h
index 0ef84a3d9c8..57e945cafb4 100644
--- a/gcc/testsuite/gcc.dg/guality/prevent-optimization.h
+++ b/gcc/testsuite/gcc.dg/guality/prevent-optimization.h
@@ -21,8 +21,10 @@ along with GCC; see the file COPYING3.  If not see
 
 #ifdef PREVENT_OPTIMIZATION
 #define ATTRIBUTE_USED __attribute__((used))
+#define VOLATILE volatile
 #else
 #define ATTRIBUTE_USED
+#define VOLATILE
 #endif
 
 #endif
diff --git a/gcc/testsuite/gcc.dg/guality/vla-1.c b/gcc/testsuite/gcc.dg/guality/vla-1.c
index 264b9f3f92b..d281185c18c 100644
--- a/gcc/testsuite/gcc.dg/guality/vla-1.c
+++ b/gcc/testsuite/gcc.dg/guality/vla-1.c
@@ -2,6 +2,8 @@
 /* { dg-do run } */
 /* { dg-options "-g" } */
 
+#include "prevent-optimization.h"
+
 void __attribute__((noinline))
 bar (short *p)
 {
@@ -12,7 +14,7 @@ bar (short *p)
 int __attribute__((noinline))
 f1 (int i)
 {
-  char a[i + 1];
+  VOLATILE char a[i + 1];
   a[0] = 5;		/* { dg-final { gdb-test .+1 "i" "5" } } */
   return a[0];		/* { dg-final { gdb-test . "sizeof (a)" "6" } } */
 }