1 files changed, 32 insertions, 0 deletions
diff --git a/SingleSource/Regression/C/gcc-c-torture/execute/pr56051.c b/SingleSource/Regression/C/gcc-c-torture/execute/pr56051.c
new file mode 100644
index 00000000..4ff6b9e2
--- /dev/null
+++ b/SingleSource/Regression/C/gcc-c-torture/execute/pr56051.c
@@ -0,0 +1,32 @@
+/* PR tree-optimization/56051 */
+
+extern void abort (void);
+
+int
+main ()
+{
+  unsigned char x1[1] = { 0 };
+  unsigned int s1 = __CHAR_BIT__;
+  int a1 = x1[0] < (unsigned char) (1 << s1);
+  unsigned char y1 = (unsigned char) (1 << s1);
+  int b1 = x1[0] < y1;
+  if (a1 != b1)
+    abort ();
+#if __SIZEOF_LONG_LONG__ > __SIZEOF_INT__
+  unsigned long long x2[1] = { 2ULL << (sizeof (int) * __CHAR_BIT__) };
+  unsigned int s2 = sizeof (int) * __CHAR_BIT__ - 1;
+  int a2 = x2[0] >= (unsigned long long) (1 << s2);
+  unsigned long long y2 = 1 << s2;
+  int b2 = x2[0] >= y2;
+  if (a2 != b2)
+    abort ();
+  unsigned long long x3[1] = { 2ULL << (sizeof (int) * __CHAR_BIT__) };
+  unsigned int s3 = sizeof (int) * __CHAR_BIT__ - 1;
+  int a3 = x3[0] >= (unsigned long long) (1U << s3);
+  unsigned long long y3 = 1U << s3;
+  int b3 = x3[0] >= y3;
+  if (a3 != b3)
+    abort ();
+#endif
+  return 0;
+}