Add a testcase (PR middle-end/88758).

2019-01-11  Martin Liska  <mliska@suse.cz>

	PR middle-end/88758
	* g++.dg/lto/pr88758_0.C: New test.
	* g++.dg/lto/pr88758_1.C: New test.

From-SVN: r267840

gcc/testsuite/ChangeLog

+2019-01-11  Martin Liska  <mliska@suse.cz>
+
+	PR middle-end/88758
+	* g++.dg/lto/pr88758_0.C: New test.
+	* g++.dg/lto/pr88758_1.C: New test.
+
 2019-01-11  Jan Beulich  <jbeulich@suse.com>
 
 	* gcc.target/i386/avx512f-vcvtsd2si-1.c,

gcc/testsuite/g++.dg/lto/pr88758_0.C

+// { dg-lto-do link }
+// { dg-require-effective-target fpic }
+// { dg-require-effective-target shared }
+// { dg-lto-options { { -O3 -fPIC -flto -shared } } }
+
+void PreEvaluate(void);
+int main() { PreEvaluate(); return 0; }

gcc/testsuite/g++.dg/lto/pr88758_1.C

+extern int a[];
+int b;
+int c;
+
+void PreEvaluate(void) {
+  b = 0;
+  for (; b < 8; b++)
+    a[b] = c * (b > 0 ? b - 1 : 0);
+}