PR target/44364

[pf3gnuchains/gcc-fork.git] / gcc / config / rs6000 / e500.h

diff --git a/gcc/config/rs6000/e500.h b/gcc/config/rs6000/e500.h
index 05b20ad..744f4de 100644 (file)
--- a/gcc/config/rs6000/e500.h
+++ b/gcc/config/rs6000/e500.h
@@ -1,5 +1,5 @@
 /* Enable E500 support.
-   Copyright (C) 2003, 2004, 2006, 2007, 2008, 2009 Free Software
+   Copyright (C) 2003, 2004, 2006, 2007, 2008, 2009, 2010 Free Software
    Foundation, Inc.
    This file is part of GCC.
 
@@ -46,3 +46,10 @@
          error ("E500 and FPRs not supported");                        \
       }                                                                        \
   } while (0)
+
+/* When setting up caller-save slots (MODE == VOIDmode) ensure we
+   allocate space for DFmode.  Save gprs in the correct mode too.  */
+#define HARD_REGNO_CALLER_SAVE_MODE(REGNO, NREGS, MODE) \
+  (TARGET_E500_DOUBLE && ((MODE) == VOIDmode || (MODE) == DFmode)      \
+   ? DFmode                                                            \
+   : choose_hard_reg_mode ((REGNO), (NREGS), false))