re PR rtl-optimization/14282 (ICE in sh-elf-gcc with -m4-single-only and -O2)

PR optimization/14282
* sched-deps.c (sched_analyze_insn): Allow a stack adjustment
between a call and the assignment of its return value.

From-SVN: r78925

gcc/ChangeLog

+2004-03-04  DJ Delorie  <dj@redhat.com>
+
+	PR optimization/14282
+	* sched-deps.c (sched_analyze_insn): Allow a stack adjustment
+	between a call and the assignment of its return value.
+
 2004-03-04  Kazu Hirata  <kazu@cs.umass.edu>
 
 	* config/h8300/h8300.c: Put a comment for every function.

gcc/sched-deps.c

@@ -1127,7 +1127,13 @@ sched_analyze_insn (struct deps *deps, rtx x, rtx insn, rtx loop_notes)
       tmp = SET_SRC (set);
       if (GET_CODE (tmp) == SUBREG)
 	tmp = SUBREG_REG (tmp);
-      if (GET_CODE (tmp) == REG)
+      if ((GET_CODE (tmp) == PLUS
+	   || GET_CODE (tmp) == MINUS)
+	  && GET_CODE (XEXP (tmp, 0)) == REG
+	  && REGNO (XEXP (tmp, 0)) == STACK_POINTER_REGNUM
+	  && dest_regno == STACK_POINTER_REGNUM)
+	src_regno = STACK_POINTER_REGNUM;
+      else if (GET_CODE (tmp) == REG)
 	src_regno = REGNO (tmp);
       else
 	goto end_call_group;