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, 40 insertions, 0 deletions

diff --git a/gcc/testsuite/g++.dg/tree-ssa/pr31307.C b/gcc/testsuite/g++.dg/tree-ssa/pr31307.C
new file mode 100644
index 000000000..bdfe5bd5a
--- /dev/null
+++ b/gcc/testsuite/g++.dg/tree-ssa/pr31307.C
@@ -0,0 +1,40 @@
+/* { dg-do compile } */
+/* { dg-options "-O -fdump-tree-optimized" } */
+
+union MY_M128
+{
+  double i;
+};
+
+struct RegFile
+{
+  MY_M128 dst[4];
+};
+
+__inline__ __attribute__((always_inline)) static void
+MEM_OPT_LOAD(MY_M128* reg, double* mem)
+{
+  reg[0].i = *mem;
+}
+
+void _ia32_movntdq (double *, double);
+
+__inline__ __attribute__((always_inline)) static void
+MEM_OPT_STORE(MY_M128* reg, double* mem)
+{
+  _ia32_movntdq ((double*)mem, (double)reg[0].i);
+}
+
+double _mm_adds_epu8 (double __A, double __B);
+
+int test(unsigned char *d)
+{ 
+  RegFile r;
+  MEM_OPT_LOAD((r.dst) , ((double*) d)); 
+  r.dst[0].i = _mm_adds_epu8(r.dst[0].i, r.dst[0].i);
+  MEM_OPT_STORE((r.dst), (double*) d);
+  return 0;
+}
+
+/* { dg-final { scan-tree-dump-not "r.dst" "optimized" } } */
+/* { dg-final { cleanup-tree-dump "optimized" } } */