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, 64 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.dg/tree-ssa/20040326-2.c b/gcc/testsuite/gcc.dg/tree-ssa/20040326-2.c
new file mode 100644
index 000000000..b1bed75da
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/tree-ssa/20040326-2.c
@@ -0,0 +1,64 @@
+/* { dg-options "-O2 -fno-inline-functions" } */
+/* { dg-do run } */
+
+/* Gimplification problem exposed by zsh.  All the side-effects in
+   function arguments and in the called expression should happen
+   before the actual function call.  */
+extern void abort (void);
+int A;
+
+typedef void (*fnptr) (void);
+fnptr *F;
+
+void
+foo (int x)
+{
+  if (A == x)
+    abort ();
+}
+
+void
+bar (int x, int y)
+{
+  if (x == 5 || y != 3)
+    abort ();
+}
+
+void
+boz (void)
+{
+  abort ();
+}
+
+void
+baz (void)
+{
+  if (*F != boz)
+    abort ();
+}
+
+fnptr B[2] = { baz, boz };
+
+main ()
+{
+  int b, c;
+
+  /* The gimplifier was emitting A++ after the call to foo.  */
+  A = 5;
+  foo (A++);
+
+  /* The increment to 'b' and 'c' must happen before the call.  However,
+     the first argument to bar() must be the original value of 'b', while
+     the second argument must be the new value of 'c'.  */
+  b = 4;
+  c = 2;
+  bar (b++, ++c);
+
+  /* This call via function pointer *F should go to baz, but F should
+     be incremented before the actual call (i.e., right before the
+     call F should be pointing to boz).  */
+  F = &B[0];
+  (*F++) ();
+
+  return 0;
+}