1 files changed, 30 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/pr83424.c b/gcc/testsuite/gcc.dg/pr83424.c
new file mode 100644
index 000000000000..5a304f502923
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/pr83424.c
@@ -0,0 +1,30 @@
+/* PR rtl-optimization/83424 */
+/* { dg-do run { target int128 } } */
+/* { dg-options "-O -fno-tree-ccp -fno-tree-coalesce-vars" } */
+
+typedef unsigned char u8;
+typedef unsigned int u32;
+typedef unsigned __int128 u128;
+
+u32 a, c;
+u8 b;
+
+static u128 __attribute__ ((noinline, noclone))
+foo (u128 p)
+{
+  u8 x = ~b;
+  p &= c;
+  x *= -p;
+  x &= a == 0;
+  x >>= 1;
+  return p + x;
+}
+
+int
+main (void)
+{
+  u128 x = foo (0);
+  if (x != 0)
+    __builtin_abort ();
+  return 0;
+}