Put in a fix from future gcc that implements some unimplemented code.

Not that I know what it does and how to test it but libstdc++ builds now
on sparc64 and groff works so we can have man pages.

It shouldn't hurt anything because it replaces an abort().

1 files changed, 9 insertions, 0 deletions

diff --git a/gnu/egcs/gcc/emit-rtl.c b/gnu/egcs/gcc/emit-rtl.c
index f16f6f23bb9..3c3d5a5ca5e 100644
--- a/gnu/egcs/gcc/emit-rtl.c
+++ b/gnu/egcs/gcc/emit-rtl.c
@@ -1382,6 +1382,15 @@ operand_subword (op, i, validate_address, mode)
 	val = ((val & 0xffffffff) ^ 0x80000000) - 0x80000000;
 	return GEN_INT (val);
       }
+#if HOST_BITS_PER_WIDE_INT >= 64
+      else if (BITS_PER_WORD >= 64 && i <= 1)
+        { 
+          val = k[i * 2 + ! WORDS_BIG_ENDIAN];
+          val = (((val & 0xffffffff) ^ 0x80000000) - 0x80000000) << 32;
+          val |= (HOST_WIDE_INT) k[i * 2 + WORDS_BIG_ENDIAN] & 0xffffffff;
+          return GEN_INT (val);
+        }
+#endif
     else
       abort ();
   }