[committed] testsuite: Require gnu-tm support for pr94856.C

[Kito Cheng]

 - The testcase uses the -fgnu-tm option but does not ensure that support
   is enabled. This patch adds the test to the testcase.

        * gcc/testsuite/g++.dg/ipa/pr94856.C: Require fgnu-tm.
---
 gcc/testsuite/ChangeLog            | 4 ++++
 gcc/testsuite/g++.dg/ipa/pr94856.C | 1 +
 2 files changed, 5 insertions(+)

diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index c35e084b366b..7d28875760cf 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,7 @@
+2020-05-11  Kito Cheng  <kito.ch...@sifive.com>
+
+       * gcc/testsuite/g++.dg/ipa/pr94856.C: Require fgnu-tm.
+
 2020-05-11  Uroš Bizjak  <ubiz...@gmail.com>
 
        PR target/95046
diff --git a/gcc/testsuite/g++.dg/ipa/pr94856.C 
b/gcc/testsuite/g++.dg/ipa/pr94856.C
index 5315c52d80ed..40f3a167e297 100644
--- a/gcc/testsuite/g++.dg/ipa/pr94856.C
+++ b/gcc/testsuite/g++.dg/ipa/pr94856.C
@@ -1,5 +1,6 @@
 /* { dg-do compile } */
 /* { dg-options "-O2 -fno-tree-dse --param uninlined-function-insns=0 --param 
early-inlining-insns=3 -fgnu-tm " } */
+/* { dg-require-effective-target fgnu_tm } */
 
 class a {
 public:
-- 
2.26.2