2007-01-08 Manuel Lopez-Ibanez <manu@gcc.gnu.org>

[pf3gnuchains/gcc-fork.git] / gcc / jump.c

diff --git a/gcc/jump.c b/gcc/jump.c
index 807f2c6..5670170 100644 (file)
--- a/gcc/jump.c
+++ b/gcc/jump.c
@@ -1951,7 +1951,11 @@ true_regnum (rtx x)
   if (GET_CODE (x) == SUBREG)
     {
       int base = true_regnum (SUBREG_REG (x));
-      if (base >= 0 && base < FIRST_PSEUDO_REGISTER)
+      if (base >= 0
+         && base < FIRST_PSEUDO_REGISTER
+         && subreg_offset_representable_p (REGNO (SUBREG_REG (x)),
+                                           GET_MODE (SUBREG_REG (x)),
+                                           SUBREG_BYTE (x), GET_MODE (x)))
        return base + subreg_regno_offset (REGNO (SUBREG_REG (x)),
                                           GET_MODE (SUBREG_REG (x)),
                                           SUBREG_BYTE (x), GET_MODE (x));