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authorupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
committerupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
commit554fd8c5195424bdbcabf5de30fdc183aba391bd (patch)
tree976dc5ab7fddf506dadce60ae936f43f58787092 /gcc/testsuite/gcc.c-torture/execute/pr36038.c
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Diffstat (limited to 'gcc/testsuite/gcc.c-torture/execute/pr36038.c')
-rw-r--r--gcc/testsuite/gcc.c-torture/execute/pr36038.c43
1 files changed, 43 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.c-torture/execute/pr36038.c b/gcc/testsuite/gcc.c-torture/execute/pr36038.c
new file mode 100644
index 000000000..de4bef3d4
--- /dev/null
+++ b/gcc/testsuite/gcc.c-torture/execute/pr36038.c
@@ -0,0 +1,43 @@
+/* PR tree-optimization/36038 */
+
+long long list[10];
+long long expect[10] = { 0, 1, 2, 3, 4, 4, 5, 6, 7, 9 };
+long long *stack_base;
+int indices[10];
+int *markstack_ptr;
+
+void
+doit (void)
+{
+ long long *src;
+ long long *dst;
+ long long *sp = stack_base + 5;
+ int diff = 2;
+ int shift;
+ int count;
+
+ shift = diff - (markstack_ptr[-1] - markstack_ptr[-2]);
+ count = (sp - stack_base) - markstack_ptr[-1] + 2;
+ src = sp;
+ dst = (sp += shift);
+ while (--count)
+ *dst-- = *src--;
+}
+
+int
+main ()
+{
+ int i;
+ for (i = 0; i < 10; i++)
+ list[i] = i;
+
+ markstack_ptr = indices + 9;
+ markstack_ptr[-1] = 2;
+ markstack_ptr[-2] = 1;
+
+ stack_base = list + 2;
+ doit ();
+ if (__builtin_memcmp (expect, list, sizeof (list)))
+ __builtin_abort ();
+ return 0;
+}