From: Frank Ch. Eigler <fche@redhat.com>
Date: Thu, 22 Jun 2017 19:48:43 +0000 (-0400)
Subject: implicptr.c test case: defeat more compiler optimizations
X-Git-Tag: post-bpf-merge^2~5^2~23
X-Git-Url: https://sourceware.org/git/?a=commitdiff_plain;h=85166d5f1d711329ab13038618973f81ed64f805;p=systemtap.git

implicptr.c test case: defeat more compiler optimizations

Force the compiler to not optimize away a few more locals.
---

diff --git a/testsuite/systemtap.base/implicitptr.c b/testsuite/systemtap.base/implicitptr.c
index f9d19dcfa..7067cd957 100644
--- a/testsuite/systemtap.base/implicitptr.c
+++ b/testsuite/systemtap.base/implicitptr.c
@@ -3,6 +3,9 @@
 #define MARK(name) STAP_PROBE(implicitptr, name)
 
 int z;
+int **j2;
+int ***k2;
+int ****l2;
 
 static int
 foo (int i)
@@ -10,6 +13,7 @@ foo (int i)
   int *j = &i;
   int **k = &j;
   int ***l = &k;
+  j2 = &j; k2 = &k; l2 = &l;
  l1: MARK (foo_l1);
   z++;		      /* side effect helps the probe placement hit right */
   i++;