Index: config/arm/arm.c
===================================================================
--- config/arm/arm.c	(revision 162370)
+++ config/arm/arm.c	(working copy)
@@ -1526,9 +1526,6 @@
   if (TARGET_ARM && TARGET_CALLEE_INTERWORKING)
     warning (0, "enabling callee interworking support is only meaningful when compiling for the Thumb");
 
-  if (TARGET_ARM && TARGET_CALLER_INTERWORKING)
-    warning (0, "enabling caller interworking support is only meaningful when compiling for the Thumb");
-
   if (TARGET_APCS_STACK && !TARGET_APCS_FRAME)
     {
       warning (0, "-mapcs-stack-check incompatible with -mno-apcs-frame");
@@ -4479,10 +4476,6 @@
       && arm_needs_doubleword_align (mode, type))
     pcum->nregs++;
 
-  if (mode == VOIDmode)
-    /* Pick an arbitrary value for operand 2 of the call insn.  */
-    return const0_rtx;
-
   /* Only allow splitting an arg between regs and memory if all preceding
      args were allocated to regs.  For args passed by reference we only count
      the reference pointer.  */