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, 134 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.target/powerpc/pr47755-2.c b/gcc/testsuite/gcc.target/powerpc/pr47755-2.c
new file mode 100644
index 000000000..2180efdbe
--- /dev/null
+++ b/gcc/testsuite/gcc.target/powerpc/pr47755-2.c
@@ -0,0 +1,134 @@
+/* { dg-do run { target { powerpc*-*-* } } } */
+/* { dg-skip-if "" { powerpc*-*-darwin* } { "*" } { "" } } */
+/* { dg-require-effective-target powerpc_vsx_ok } */
+/* { dg-options "-O3 -mcpu=power7" } */
+
+/* PR 47755: Make sure compiler generates correct code for various
+   V2DI constants.  */
+
+#ifdef DEBUG
+#include <stdio.h>
+
+static int num_errors;
+#define FAIL_LL(A, B) \
+  (num_errors++, printf ("Fail (%i, %i)\n", (int)(A), (int)(B)))
+#define FAIL_I(A, B, C, D) \
+  (num_errors++, \
+  printf ("Fail (%i, %i, %i, %i)\n", (int)(A), (int)(B), (int)(C), (int)(D)))
+
+#else
+extern void abort (void) __attribute__((__noreturn__));
+#define FAIL_LL(A, B) abort ()
+#define FAIL_I(A, B, C, D) abort ()
+#endif
+
+static test_ll (vector long long, long long, long long) __attribute__((__noinline__));
+
+static
+test_ll (vector long long v, long long a, long long b)
+{
+  union {
+    vector long long v;
+    long long ll[2];
+  } u;
+
+  u.v = v;
+  if (u.ll[0] != a && u.ll[1] != b)
+    FAIL_LL (a, b);
+}
+
+#define TEST_LL(A,B) test_ll ((vector long long){ (A), (B) }, (A), (B))
+
+static test_i (vector int, int, int, int, int) __attribute__((__noinline__));
+
+static
+test_i (vector int v, int a, int b, int c, int d)
+{
+  union {
+    vector int v;
+    int i[4];
+  } u;
+
+  u.v = v;
+  if (u.i[0] != a && u.i[1] != b && u.i[2] != c && u.i[3] != d)
+    FAIL_I (a, b, c, d);
+}
+
+#define TEST_I(A,B,C,D) \
+  test_i ((vector int){ (A), (B), (C), (D) }, (A), (B), (C), (D))
+
+int
+main (void)
+{
+  TEST_LL (-2LL, -2LL);
+  TEST_LL (-2LL, -1LL);
+  TEST_LL (-2LL,  0LL);
+  TEST_LL (-2LL,  1LL);
+  TEST_LL (-2LL,  2LL);
+
+  TEST_LL (-1LL, -2LL);
+  TEST_LL (-1LL, -1LL);
+  TEST_LL (-1LL,  0LL);
+  TEST_LL (-1LL,  1LL);
+  TEST_LL (-1LL,  2LL);
+
+  TEST_LL (0LL, -2LL);
+  TEST_LL (0LL, -1LL);
+  TEST_LL (0LL,  0LL);
+  TEST_LL (0LL,  1LL);
+  TEST_LL (0LL,  2LL);
+
+  TEST_LL (1LL, -2LL);
+  TEST_LL (1LL, -1LL);
+  TEST_LL (1LL,  0LL);
+  TEST_LL (1LL,  1LL);
+  TEST_LL (1LL,  2LL);
+
+  TEST_LL (2LL, -2LL);
+  TEST_LL (2LL, -1LL);
+  TEST_LL (2LL,  0LL);
+  TEST_LL (2LL,  1LL);
+  TEST_LL (2LL,  2LL);
+
+  /* We could use VSPLTI instructions for these tests.  */
+  TEST_LL (0x0101010101010101LL, 0x0101010101010101LL);
+  TEST_LL (0x0001000100010001LL, 0x0001000100010001LL);
+  TEST_LL (0x0000000100000001LL, 0x0000000100000001LL);
+
+  TEST_LL (0x0404040404040404LL, 0x0404040404040404LL);
+  TEST_LL (0x0004000400040004LL, 0x0004000400040004LL);
+  TEST_LL (0x0000000400000004LL, 0x0000000400000004LL);
+
+  TEST_LL (0xf8f8f8f8f8f8f8f8LL, 0xf8f8f8f8f8f8f8f8LL);
+  TEST_LL (0xfff8fff8fff8fff8LL, 0xfff8fff8fff8fff8LL);
+  TEST_LL (0xfffffff8fffffff8LL, 0xfffffff8fffffff8LL);
+
+  /* We could use VSPLTI instructions for these tests.  */
+  TEST_I (-2, -2, -2, -2);
+  TEST_I (-1, -1, -1, -1);
+  TEST_I ( 0,  0,  0,  0);
+  TEST_I ( 1,  1,  1,  1);
+  TEST_I ( 2,  2,  2,  2);
+
+  TEST_I (0x01010101, 0x01010101, 0x01010101, 0x01010101);
+  TEST_I (0x00010001, 0x00010001, 0x00010001, 0x00010001);
+
+  TEST_I (0x02020202, 0x02020202, 0x02020202, 0x02020202);
+  TEST_I (0x00020002, 0x00020002, 0x00020002, 0x00020002);
+
+  TEST_I (0xf8f8f8f8, 0xf8f8f8f8, 0xf8f8f8f8, 0xf8f8f8f8);
+  TEST_I (0xfff8fff8, 0xfff8fff8, 0xfff8fff8, 0xfff8fff8);
+
+  /* non-easy constants.  */
+  TEST_I (-2, -1,  0,  1);
+  TEST_I ( 1,  0, -1, -2);
+
+  TEST_I (-1, -1,  0,  0);
+  TEST_I ( 0,  0, -1, -1);
+
+#ifdef DEBUG
+  printf ("%d error%s\n", num_errors, (num_errors == 1) ? "" : "s");
+#endif
+
+  return 0;
+};