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Diffstat (limited to 'gcc-4.9/gcc/testsuite/c-c++-common/cilk-plus/AN/exec-once2.c')
-rw-r--r--gcc-4.9/gcc/testsuite/c-c++-common/cilk-plus/AN/exec-once2.c87
1 files changed, 87 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/c-c++-common/cilk-plus/AN/exec-once2.c b/gcc-4.9/gcc/testsuite/c-c++-common/cilk-plus/AN/exec-once2.c
new file mode 100644
index 000000000..d9f39dd66
--- /dev/null
+++ b/gcc-4.9/gcc/testsuite/c-c++-common/cilk-plus/AN/exec-once2.c
@@ -0,0 +1,87 @@
+/* { dg-do run } */
+/* { dg-options "-fcilkplus" } */
+
+#ifdef HAVE_IO
+#include <stdio.h>
+#endif
+
+
+int func1(int x)
+{
+ /* If x == 2 then it should return 0. */
+ return (x - 2);
+}
+
+int func2(int x)
+{
+ /* If x == 2 then it should return 1000. */
+ return (x * 500);
+}
+
+int func3 (int x)
+{
+ /* If x == 2 then it should return 1. */
+ /* If x == 1 then it should return 0. */
+ return (x-1);
+}
+
+int func4(int x)
+{
+ if (x > 0)
+ return x;
+ else
+ return x--;
+}
+
+
+/* This program makes an assumption that argc == 1. */
+int main (void)
+{
+ int argc = 1;
+ int array[2500];
+
+ /* This is done to make sure the compiler does not optimize out argc. */
+ __asm volatile ("" : "+r" (argc));
+ /* This should set array[0->999] to 5. */
+ array[argc-1:func2(++argc):1] = 5;
+ array[1000:500:1] = 10; /* set all variables in array[1000-->1499] to 10. */
+ array[1500:500:1] = 15; /* set all variables in array[1500-->1999] to 15. */
+ array[2000:500:1] = 20; /* set all variables in array[2000-->2499] to 20. */
+ array[2000:500:1] = 25; /* set all variables in array[2500-->2999] to 25. */
+ array[2000:500:1] = 30; /* set all variables in array[3000-->3499] to 30. */
+
+ argc = func3 (argc); /* This will set argc back to 1. */
+#if HAVE_IO
+ printf("argc = %d\n", argc);
+#endif
+ /* If the parameters inside the function get evaluated only once, then this
+ if statement must work fine, i.e. the triplet values will be 0, 1000, 1.
+
+ Otherwise, the program should crash or give some uneasy value. */
+
+ /* If done correctly, it should boil down to: array[0:1000:1]. */
+ if (array[func3(argc):func2(++argc)] != 5) {
+#ifdef HAVE_IO
+ printf ("Should not be there(1).\n");
+#endif
+ return 1;
+ }
+
+ /* If done correctly, it should boil down to: array[999:500:-1]. */
+ if (func4(array[func2(argc)-1:func2(argc--):func1(argc)]) != 5) {
+#ifdef HAVE_IO
+ printf ("Should not be there(2).\n");
+#endif
+ return 2;
+ }
+
+ /* If done correctly, it should boil down to: array[1000:500:1]. */
+ if (func4 (func4(array[func2(argc++):500: func1(argc--)])) != 5) {
+#ifdef HAVE_IO
+ printf ("Should not be there(3).\n");
+#endif
+ return 3;
+ }
+
+ return 0;
+}