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, 67 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.target/i386/funcspec-3.c b/gcc/testsuite/gcc.target/i386/funcspec-3.c
new file mode 100644
index 000000000..01c7e4ca0
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/funcspec-3.c
@@ -0,0 +1,67 @@
+/* Test whether using target specific options, we can generate popcnt by
+   setting the architecture.  */
+/* { dg-do compile } */
+/* { dg-require-effective-target lp64 } */
+/* { dg-options "-O2 -march=k8" } */
+
+extern void exit (int);
+extern void abort (void);
+
+#define SSE4A_ATTR __attribute__((__target__("arch=amdfam10")))
+#define SSE42_ATTR __attribute__((__target__("sse4.2")))
+
+static int sse4a_pop_i (int a) SSE4A_ATTR;
+static long sse42_pop_l (long a) SSE42_ATTR;
+static int generic_pop_i (int a);
+static long generic_pop_l (long a);
+
+static
+int sse4a_pop_i (int a)
+{
+  return __builtin_popcount (a);
+}
+
+static
+long sse42_pop_l (long a)
+{
+  return __builtin_popcountl (a);
+}
+
+static
+int generic_pop_i (int a)
+{
+  return __builtin_popcount (a);
+}
+
+static
+long generic_pop_l (long a)
+{
+  return __builtin_popcountl (a);
+}
+
+int five = 5;
+long seven = 7;
+
+int main ()
+{
+  if (sse4a_pop_i (five) != 2)
+    abort ();
+
+  if (sse42_pop_l (seven) != 3L)
+    abort ();
+
+  if (generic_pop_i (five) != 2)
+    abort ();
+
+  if (generic_pop_l (seven) != 3L)
+    abort ();
+
+  exit (0);
+}
+
+/* { dg-final { scan-assembler "popcntl" { target { ! *-*-darwin* } } } } */
+/* { dg-final { scan-assembler "popcntq" { target { ! *-*-darwin* } } } } */
+/* { dg-final { scan-assembler-times "popcnt" 2 { target *-*-darwin* } } } */
+/* { dg-final { scan-assembler "call\t(.*)sse4a_pop_i" } } */
+/* { dg-final { scan-assembler "call\t(.*)sse42_pop_l" } } */
+/* { dg-final { scan-assembler "call\t(.*)popcountdi2" } } */