Fix SI followed by 4 DFs under AIX

From-SVN: r12838

diff --git a/gcc/expr.c b/gcc/expr.c
index 1b0ba5b98b8365b50962052671cb32c9d136ae2f..926a61c00ff743b8e93c5446e7c9a301e61033b5 100644 (file)
--- a/gcc/expr.c
+++ b/gcc/expr.c
@@ -1785,8 +1785,12 @@ emit_group_load (x, y)
        {
          if (GET_MODE (target_reg) == GET_MODE (y))
            source = y;
        {
          if (GET_MODE (target_reg) == GET_MODE (y))
            source = y;

+         /* Allow for the target_reg to be smaller than the input register
+            to allow for AIX with 4 DF arguments after a single SI arg.  The
+            last DF argument will only load 1 word into the integer registers,
+            but load a DF value into the float registers.  */

          else if (GET_MODE_SIZE (GET_MODE (target_reg))
          else if (GET_MODE_SIZE (GET_MODE (target_reg))

-                  == GET_MODE_SIZE (GET_MODE (y)))
+                  <= GET_MODE_SIZE (GET_MODE (y)))

            source = gen_rtx (SUBREG, GET_MODE (target_reg), y, 0);
          else
            abort ();       
            source = gen_rtx (SUBREG, GET_MODE (target_reg), y, 0);
          else
            abort ();