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/930529-1.x b/gcc/testsuite/gcc.c-torture/execute/930529-1.x
new file mode 100644
index 000000000..25225f4f4
--- /dev/null
+++ b/gcc/testsuite/gcc.c-torture/execute/930529-1.x
@@ -0,0 +1,24 @@
+# The problem on Alpha at -O3 is that when dd is inlined, we have
+# division by a constant, which gets converted to multiplication
+# by a large constant, which gets turned into an induction variable.
+# The problem is that the multiplication was unsigned SImode, and the
+# induction variable is DImode, and we lose the truncation that
+# should have happened.
+#
+# On tree-ssa branch, the loop problem is still extant, but the
+# gimple-level optimization makes it easy for the tree-rtl expanders
+# to see that the comparisons are always true, and so the loop code
+# is never exercized.
+
+# set torture_eval_before_execute {
+# 
+#     set compiler_conditional_xfail_data {
+#         "division by a constant conflicts with strength reduction" \
+#         "alpha*-*-*" \
+#         { "-O3" } \
+#         { "" }
+#     }
+# }
+
+set additional_flags "-fwrapv"
+return 0