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-rw-r--r--gcc/testsuite/gcc.dg/Wstrict-overflow-25.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/Wstrict-overflow-25.c b/gcc/testsuite/gcc.dg/Wstrict-overflow-25.c
new file mode 100644
index 0000000..0091644
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/Wstrict-overflow-25.c
@@ -0,0 +1,11 @@
+/* { dg-do compile } */
+/* { dg-options "-fstrict-overflow -O2 -Wstrict-overflow=3" } */
+
+/* We can only simplify the conditional when using strict overflow
+ semantics. */
+
+int
+foo (int x, int y)
+{
+ return x - y < 0; /* { dg-warning "assuming signed overflow does not occur" "correct warning" } */
+}