obtained gcc-4.6.4.tar.bz2 from upstream website;upstream

verified gcc-4.6.4.tar.bz2.sig;
imported gcc-4.6.4 source tree from verified upstream tarball.

downloading a git-generated archive based on the 'upstream' tag
should provide you with a source tree that is binary identical
to the one extracted from the above tarball.

if you have obtained the source via the command 'git clone',
however, do note that line-endings of files in your working
directory might differ from line-endings of the respective
files in the upstream repository.

1 files changed, 108 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.dg/ftrapv-2.c b/gcc/testsuite/gcc.dg/ftrapv-2.c
new file mode 100644
index 000000000..d79b86dde
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/ftrapv-2.c
@@ -0,0 +1,108 @@
+/* Copyright (C) 2004 Free Software Foundation.
+
+   PR other/18665
+   Verify that -ftrapv doesn't produce bogus results
+   on 64-bit platforms.
+
+   Written by Eric Botcazou  */
+
+/* { dg-do run } */
+/* { dg-options "-ftrapv" } */
+
+extern void abort(void);
+extern long labs(long);
+
+int __attribute__((noinline))
+iabsv(int a)
+{
+  return abs(a);
+}
+
+int __attribute__((noinline))
+iaddv(int a, int b)
+{
+  return a + b;
+}
+
+int __attribute__((noinline))
+isubv(int a, int b)
+{
+  return a - b;
+}
+
+int __attribute__((noinline))
+imulv(int a, int b)
+{
+  return a * b;
+}
+
+int __attribute__((noinline))
+inegv(int a)
+{
+  return -a;
+}
+
+long __attribute__((noinline))
+labsv(long a)
+{
+  return labs(a);
+}
+
+long __attribute__((noinline))
+laddv(long a, long b)
+{
+  return a + b;
+}
+
+long __attribute__((noinline))
+lsubv(long a, long b)
+{
+  return a - b;
+}
+
+long __attribute__((noinline))
+lmulv(long a, long b)
+{
+  return a * b;
+}
+
+long __attribute__((noinline))
+lnegv(long a)
+{
+  return -a;
+}
+
+int main(void)
+{
+  if (iabsv (-1) != 1)
+    abort ();
+
+  if (iaddv (2,-3) != -1)
+    abort ();
+
+  if (isubv (2,3) != -1)
+    abort ();
+
+  if (imulv (-2,3) != -6)
+    abort ();
+
+  if (inegv (-1) != 1)
+    abort ();
+
+  if (labsv (-1L) != 1L)
+    abort ();
+
+  if (laddv (2L,-3L) != -1L)
+    abort ();
+
+  if (lsubv (2L,3L) != -1L)
+    abort ();
+
+  if (lmulv (-2L,3L) != -6L)
+    abort ();
+
+  if (lnegv (-1L) != 1L)
+    abort ();
+
+  return 0;
+}