Initial creation of sourceware repositorygdb-4_18-branchpoint

1 files changed, 76 insertions, 0 deletions

diff --git a/gdb/testsuite/gdb.hp/optimize.c b/gdb/testsuite/gdb.hp/optimize.c
new file mode 100644
index 0000000..2a8daa8
--- /dev/null
+++ b/gdb/testsuite/gdb.hp/optimize.c
@@ -0,0 +1,76 @@
+/* Source for debugging optimimzed code test.
+
+    cc -g -O -o optimize optimize.c
+*/
+int callee();
+int test_opt;
+
+int main()
+{
+   int a,b,c,d,e,f,g,h;
+
+   a = 10;;
+
+   /* Value propagate
+    */
+   b = 2 * a + 1;
+   c = 3 * b + 2;
+
+   /* Re-use expressions
+    */
+   d = (2 * a + 1) * (3 * b + 2);
+   e = (2 * a + 1) * (3 * b + 2);
+
+   /* Create dead stores--do lines still exist?
+    */
+   d = (2 * a + 1) * (3 * b + 2);
+   e = (2 * a + 1) * (3 * b + 2);
+   d = (2 * a + 1) * (3 * b + 2);
+   e = (2 * a + 1) * (3 * b + 2);
+
+   /* Alpha and psi motion
+    */
+   if( test_opt ) {
+       f = e - d;
+       f = f--;
+   }
+   else {
+       f = e - d;
+       f = f + d * e;
+   }
+
+   /* Chi and Rho motion
+    */
+   h = 0;
+   do {
+       h++;
+       a = b * c + d * e;  /* Chi */
+       f = f + d * e;
+       g = f + d * e;      /* Rho */
+       callee( g+1 );
+       test_opt = (test_opt != 1);  /* Cycles */
+   } while( g && h < 10);
+
+   /* Opps for tail recursion, unrolling,
+    * folding, evaporating
+    */
+   for( a = 0; a < 100; a++ ) {
+       callee( callee ( callee( a )));
+       callee( callee ( callee( a )));
+       callee( callee ( callee( a )));
+   }
+
+   return callee( test_opt );
+}
+
+/* defined late to keep line numbers the same
+*/
+int callee( x )
+    int x;      /* not used! */
+{
+    test_opt++; /* side effect */
+
+    return test_opt;
+}
+
+/* end */
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