(expand_call): If IS_CONST and VALREG == 0, end our sequence and emit

the insns.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@8431 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 11 insertions, 2 deletions

diff --git a/gcc/calls.c b/gcc/calls.c
index 2d58770f67a..b168e85c3eb 100644
--- a/gcc/calls.c
+++ b/gcc/calls.c
@@ -1624,10 +1624,11 @@ expand_call (exp, target, ignore)
 	    && args[i].mode != BLKmode
 	    && rtx_cost (args[i].value, SET) > 2
 #ifdef SMALL_REGISTER_CLASSES
-	    && (reg_parm_seen || preserve_subexpressions_p ()))
+	    && (reg_parm_seen || preserve_subexpressions_p ())
 #else
-	    && preserve_subexpressions_p ())
+	    && preserve_subexpressions_p ()
 #endif
+	    )
 	  args[i].value = copy_to_mode_reg (args[i].mode, args[i].value);
       }
 
@@ -1909,6 +1910,14 @@ expand_call (exp, target, ignore)
 
       valreg = temp;
     }
+  else if (is_const)
+    {
+      /* Otherwise, just write out the sequence without a note.  */
+      rtx insns = get_insns ();
+
+      end_sequence ();
+      emit_insns (insns);
+    }
 
   /* For calls to `setjmp', etc., inform flow.c it should complain
      if nonvolatile values are live.  */