[llvm-commits] [test-suite] r45584 - /test-suite/trunk/SingleSource/Regression/C/PR1386.c

[Duncan Sands]

Author: baldrick
Date: Fri Jan  4 07:16:17 2008
New Revision: 45584

URL: http://llvm.org/viewvc/llvm-project?rev=45584&view=rev
Log:
Testcase for PR1386.

Added:
    test-suite/trunk/SingleSource/Regression/C/PR1386.c

Added: test-suite/trunk/SingleSource/Regression/C/PR1386.c
URL: http://llvm.org/viewvc/llvm-project/test-suite/trunk/SingleSource/Regression/C/PR1386.c?rev=45584&view=auto

==============================================================================
--- test-suite/trunk/SingleSource/Regression/C/PR1386.c (added)
+++ test-suite/trunk/SingleSource/Regression/C/PR1386.c Fri Jan  4 07:16:17 2008
@@ -0,0 +1,22 @@
+#include <stdio.h>
+#include <stdint.h>
+
+struct X {
+  unsigned char pad : 4;
+  uint64_t a : 64;
+  uint64_t b : 60;
+} __attribute__((packed));
+
+int main (void)
+{
+  struct X x;
+  uint64_t bad_bits;
+
+  x.pad = 255;
+  x.a = -1ULL;
+  x.b = -1ULL;
+
+  bad_bits = ((uint64_t)-1ULL) ^ *(1+(uint64_t *) &x);
+  printf("bad bits: %llx\n", bad_bits);
+  return bad_bits != 0;
+}