m68k.c (m68k_save_reg): Save the PIC register in functions that need a constant pool.

gcc/
	* config/m68k/m68k.c (m68k_save_reg): Save the PIC register in
	functions that need a constant pool.

From-SVN: r122610

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 69978a316861c066ece0b457138e273434a99d60..249d3e85dbd672492d228dcd3a8c3f3ed1b8754d 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2007-03-06  Richard Sandiford  <richard@codesourcery.com>
+
+       * config/m68k/m68k.c (m68k_save_reg): Save the PIC register in
+       functions that need a constant pool.
+
 2007-03-06  Richard Sandiford  <richard@codesourcery.com>
 
        PR target/28181

diff --git a/gcc/config/m68k/m68k.c b/gcc/config/m68k/m68k.c
index b702f85e47f49e711014c35a71d881262fe68781..1d7b44864c14c28daa705ffca01db51c8ac8743d 100644 (file)
--- a/gcc/config/m68k/m68k.c
+++ b/gcc/config/m68k/m68k.c
@@ -749,6 +749,13 @@ m68k_save_reg (unsigned int regno, bool interrupt_handler)
     {
       if (current_function_uses_pic_offset_table)
        return true;
+      /* Reload may introduce constant pool references into a function
+        that thitherto didn't need a PIC register.  Note that the test
+        above will not catch that case because we will only set
+        current_function_uses_pic_offset_table when emitting
+        the address reloads.  */
+      if (current_function_uses_const_pool)
+       return true;
     }
 
   if (current_function_calls_eh_return)