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, 52 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.target/i386/pr39543-1.c b/gcc/testsuite/gcc.target/i386/pr39543-1.c
new file mode 100644
index 000000000..a8442b2e6
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/pr39543-1.c
@@ -0,0 +1,52 @@
+/* PR inline-asm/39543 */
+/* { dg-do compile } */
+/* { dg-options "-O3 -fomit-frame-pointer" } */
+
+float __attribute__ ((aligned (16))) s0[128];
+const float s1 = 0.707;
+float s2[8] __attribute__ ((aligned (16)));
+float s3[8] __attribute__ ((aligned (16)));
+float s4[16] __attribute__ ((aligned (16)));
+float s5[16] __attribute__ ((aligned (16)));
+
+void
+foo (int k, float *x, float *y, const float *d, const float *z)
+{
+  float *a, *b, *c, *e;
+
+  a = x + 2 * k;
+  b = a + 2 * k;
+  c = b + 2 * k;
+  e = y + 2 * k;
+  __asm__ volatile (""
+		    : "=m" (x[0]), "=m" (b[0]), "=m" (a[0]), "=m" (c[0])
+		    : "m" (y[0]), "m" (y[k * 2]), "m" (x[0]), "m" (a[0])
+		    : "memory");
+  for (;;)
+    {
+      __asm__ volatile (""
+			:
+			: "m" (y[2]), "m" (d[2]), "m" (e[2]), "m" (z[2])
+			: "memory");
+      if (!--k)
+	break;
+    }
+  __asm__ volatile (""
+		    : "=m" (x[2]), "=m" (x[10]), "=m" (x[6]), "=m" (x[14])
+		    : "m" (y[2]), "m" (y[6]), "m" (x[2]), "m" (x[6]),
+		      "m" (y[18]), "m" (s1)
+		    : "memory");
+}
+
+void
+bar (float *a)
+{
+  foo (4, a, a + 16, s2, s3);
+  foo (8, a, a + 32, s4, s5);
+}
+
+void
+baz (void)
+{
+  bar (s0);
+}