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, 68 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.dg/ipa/ipa-sra-4.c b/gcc/testsuite/gcc.dg/ipa/ipa-sra-4.c
new file mode 100644
index 000000000..f07706b92
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/ipa/ipa-sra-4.c
@@ -0,0 +1,68 @@
+/* { dg-do compile } */
+/* { dg-options "-O2 -fipa-sra -fdump-tree-eipa_sra-details" } */
+
+static int
+__attribute__((noinline))
+ox (int *i)
+{
+  return *i+4**i;
+}
+
+int *holder;
+
+static int
+__attribute__((noinline))
+ox_ctrl_1 (int *j)
+{
+  holder = j;
+  return *j+4 * *j+1;
+}
+
+static void
+__attribute__((noinline))
+ox_ctrl_2 (int *k)
+{
+  *k = 8;
+}
+
+static int zzz[10];
+
+static int
+__attribute__((noinline))
+ox_improved (int recurse, int *l)
+{
+  int r = 0;
+
+  r = *l;
+
+  if (recurse)
+    {
+      if (recurse > 2)
+	l = &zzz[3];
+      else
+	l = zzz;
+
+      ox_improved (0, l);
+    }
+
+  return r;
+}
+
+void caller (void)
+{
+  int a = 1;
+  int b = 10;
+  int c;
+
+  ox (&a);
+  ox_ctrl_1 (&a);
+  ox_ctrl_2 (&a);
+  *holder = ox_improved (1, &b);
+  return;
+}
+
+/* { dg-final { scan-tree-dump "About to replace expr \\*i_.*D. with ISRA" "eipa_sra"  } } */
+/* { dg-final { scan-tree-dump "About to replace expr \\*l_.*D. with ISRA" "eipa_sra"  } } */
+/* { dg-final { scan-tree-dump-times "About to replace expr \*j_.*D. with ISRA" 0 "eipa_sra"  } } */
+/* { dg-final { scan-tree-dump-times "About to replace expr \*k_.*D. with ISRA" 0 "eipa_sra"  } } */
+/* { dg-final { cleanup-tree-dump "eipa_sra" } } */