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, 87 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.target/powerpc/darwin-split-ld-stret.c b/gcc/testsuite/gcc.target/powerpc/darwin-split-ld-stret.c
new file mode 100644
index 000000000..be4e43892
--- /dev/null
+++ b/gcc/testsuite/gcc.target/powerpc/darwin-split-ld-stret.c
@@ -0,0 +1,87 @@
+/* Check for Darwin m64 that we do not try to pass & return by value for a
+   struct exceeding the number of arg FPRs (the struct here straddles the 
+   split-point).  */
+/* { dg-do run { target { powerpc*-*-darwin* && lp64 } } } */
+
+extern void abort (void);
+
+/*#define DEBUG*/
+
+#ifdef DEBUG
+extern int printf (const char *, ...);
+extern int printf$LDBL128 (const char *, ...);
+#endif
+
+typedef struct fourteen {
+  long double a, b, c, d, e, f, g;
+} fourteen_t ;
+
+fourteen_t foo (fourteen_t, fourteen_t) __attribute__ ((noinline));
+
+fourteen_t 
+foo (fourteen_t aa, fourteen_t bb) 
+{
+  fourteen_t r;
+
+  r.a = aa.a + bb.a;
+  r.b = aa.b + bb.b;
+  r.c = aa.c + bb.c;
+  r.d = aa.d + bb.d;
+  r.e = aa.e + bb.e;
+  r.f = aa.f + bb.f;
+  r.g = aa.g + bb.g;
+
+#ifdef DEBUG
+#ifdef __ppc64__
+  printf
+#else
+  printf$LDBL128
+#endif	  
+	("%Lg %Lg %Lg %Lg %Lg %Lg %Lg %Lg %Lg %Lg %Lg %Lg %Lg %Lg: "
+	"%Lg %Lg %Lg %Lg %Lg %Lg %Lg\n",
+	aa.a, aa.b, aa.c, aa.d, aa.e, aa.f, aa.g,
+	bb.a, bb.b, bb.c, bb.d, bb.e, bb.f, bb.g,
+	r.a, r.b, r.c, r.d, r.e, r.f, r.g);
+ printf ("aa.g %ll16x %ll16x\nbb.g %ll16x %ll16x\n",
+		*(unsigned long long*)&aa.g,
+		*(unsigned long long*)(((char *)&aa.g)+8),
+		*(unsigned long long*)&bb.g,
+		*(unsigned long long*)(((char *)&bb.g)+8));
+ 
+#endif
+
+  __asm__ (""); /* double make sure we don't get inlined */
+  return r;
+}
+
+int
+main (void)
+{
+  fourteen_t x = { 1.L, 2.L,  3.L,  4.L,  5.L,  6.L,-12.3456789123456789L };
+  fourteen_t y = { 8.L, 9.L, 10.L, 11.L, 12.L, 13.L, 12.3456789123456789L };
+  fourteen_t z ;
+  long double zz;
+  
+  z = foo (x,y);
+  zz = x.g + y.g;
+#ifdef DEBUG
+#ifdef __ppc64__
+	printf
+#else
+	printf$LDBL128
+#endif	  
+		("  z: %Lg %Lg %Lg %Lg %Lg %Lg %Lg\n"
+		 "ret: %ll16x %ll16x\nzz : %ll16x %ll16x\n",
+		z.a, z.b, z.c, z.d, z.e, z.f, z.g,
+		*(unsigned long long*)&z.g,
+		*(unsigned long long*)(((char *)&z.g)+8),
+		*(unsigned long long*)&zz,
+		*(unsigned long long*)(((char *)&zz)+8));
+#endif
+
+  /* Yes, we really do want to do an equality test here.  */
+  if (z.g != zz)
+    abort ();
+
+  return 0;
+}