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, 24 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.c-torture/execute/20020206-2.c b/gcc/testsuite/gcc.c-torture/execute/20020206-2.c
new file mode 100644
index 000000000..097eb3055
--- /dev/null
+++ b/gcc/testsuite/gcc.c-torture/execute/20020206-2.c
@@ -0,0 +1,24 @@
+/* Origin: PR c/5420 from David Mosberger <davidm@hpl.hp.com>.
+   This testcase was miscompiled when tail call optimizing, because a
+   compound literal initialization was emitted only in the tail call insn
+   chain, not in the normal call insn chain.  */
+
+typedef struct { unsigned short a; } A;
+
+extern void abort (void);
+extern void exit (int);
+
+void foo (unsigned int x)
+{
+  if (x != 0x800 && x != 0x810)
+    abort ();
+}
+
+int
+main (int argc, char **argv)
+{
+  int i;
+  for (i = 0; i < 2; ++i)
+    foo (((A) { ((!(i >> 4) ? 8 : 64 + (i >> 4)) << 8) + (i << 4) } ).a);
+  exit (0);
+}