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-rw-r--r--gcc/testsuite/gcc.dg/strict-overflow-1.c16
1 files changed, 16 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/strict-overflow-1.c b/gcc/testsuite/gcc.dg/strict-overflow-1.c
new file mode 100644
index 0000000..1ff96f4
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/strict-overflow-1.c
@@ -0,0 +1,16 @@
+/* { dg-do compile } */
+/* { dg-options "-fstrict-overflow -O2 -fdump-tree-final_cleanup" } */
+
+/* Source: Ian Lance Taylor. Dual of no-strict-overflow-1.c. */
+
+/* We can only simplify the conditional when using strict overflow
+ semantics. */
+
+int
+foo (int i)
+{
+ return i - 5 < 10;
+}
+
+/* { dg-final { scan-tree-dump-not "-[ ]*5" "final_cleanup" } } */
+/* { dg-final { cleanup-tree-dump "final_cleanup" } } */