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-rw-r--r--gcc/testsuite/gcc.dg/tree-ssa/pr22230.c21
1 files changed, 21 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/tree-ssa/pr22230.c b/gcc/testsuite/gcc.dg/tree-ssa/pr22230.c
new file mode 100644
index 000000000..4d6534909
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/tree-ssa/pr22230.c
@@ -0,0 +1,21 @@
+/* { dg-do run } */
+/* { dg-options "-O1 -ftree-vrp" } */
+
+/* PR tree-optimization/22230
+
+ The meet of the ranges in "i*i" was not computed correctly, leading
+ gcc to believe that a was equal to 0 after the loop. */
+
+extern void abort (void) __attribute__((noreturn));
+
+int main (void)
+{
+ long a, i;
+
+ for (i = 0; i < 5; i++)
+ a = i * i;
+ if (a != 16)
+ abort ();
+ return 0;
+}
+