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, 21 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.target/sparc/sparc-trap-1.c b/gcc/testsuite/gcc.target/sparc/sparc-trap-1.c
new file mode 100644
index 000000000..82a86fbe1
--- /dev/null
+++ b/gcc/testsuite/gcc.target/sparc/sparc-trap-1.c
@@ -0,0 +1,21 @@
+/* PR target/15693 */
+
+/* { dg-do compile } */
+/* { dg-options "-O2" } */
+
+/* This used to fail on SPARC at -O2 because the combiner
+   produces a compare insn that was not rematched by the
+   compare expander.  */
+
+static __inline__ __attribute__ ((always_inline))
+int page_mapping (unsigned flags)
+{
+  if (1u & (flags >> 16))
+    return 1;
+  return 0;
+}
+void install_page (unsigned flags)
+{
+  if (__builtin_expect (!page_mapping (flags), 0))
+    __builtin_trap ();
+}