re PR target/5309 (Infinite loop in cc1 on sparcv9-sun-solaris2.8 with -m64, short example)

	PR target/5309:
        * config/sparc/sparc.c (ultrasparc_adjust_cost): Handle TYPE_IDIV the
	same way as TYPE_IMUL.
	(ultrasparc_sched_reorder): Likewise.
	* config/sparc/sparc.md (type): Add comment to update
	ultrasparc_sched_reorder when making changes.

	* gcc.dg/ultrasp4.c: New test.

From-SVN: r48917

gcc/ChangeLog

+2002-01-16  Jakub Jelinek  <jakub@redhat.com>
+
+	PR target/5309:
+        * config/sparc/sparc.c (ultrasparc_adjust_cost): Handle TYPE_IDIV the
+	same way as TYPE_IMUL.
+	(ultrasparc_sched_reorder): Likewise.
+	* config/sparc/sparc.md (type): Add comment to update
+	ultrasparc_sched_reorder when making changes.
+
 2002-01-16  Kazu Hirata  <kazu@hxi.com>
 
 	* doc/invoke.texi: Change the dump file name of block

gcc/config/sparc/sparc.c

@@ -7202,7 +7202,7 @@ ultrasparc_adjust_cost (insn, link, dep_insn, cost)
   /* Nothing issues in parallel with integer multiplies, so
      mark as zero cost since the scheduler can not do anything
      about it.  */
-  if (insn_type == TYPE_IMUL)
+  if (insn_type == TYPE_IMUL || insn_type == TYPE_IDIV)
     return 0;
 
 #define SLOW_FP(dep_type) \
@@ -7902,7 +7902,7 @@ ultrasparc_sched_reorder (dump, sched_verbose, ready, n_ready)
       {
 	/* If the pipeline is (still) empty and we have any single
 	   group insns, get them out now as this is a good time.  */
-	rtx *ip = ultra_find_type ((TMASK (TYPE_RETURN) |
+	rtx *ip = ultra_find_type ((TMASK (TYPE_RETURN) | TMASK (TYPE_IDIV) |
 				    TMASK (TYPE_IMUL) | TMASK (TYPE_CMOVE) |
 				    TMASK (TYPE_MULTI) | TMASK (TYPE_MISC)),
 				   ready, this_insn);

gcc/config/sparc/sparc.md

@@ -82,6 +82,7 @@
 
 ;; Insn type.
 
+;; If you add any new type here, please update ultrasparc_sched_reorder too.
 (define_attr "type"
   "ialu,compare,shift,load,sload,store,uncond_branch,branch,call,sibcall,call_no_delay_slot,return,imul,idiv,fpload,fpstore,fp,fpmove,fpcmove,fpcmp,fpmul,fpdivs,fpdivd,fpsqrts,fpsqrtd,cmove,multi,misc"
   (const_string "ialu"))

gcc/testsuite/ChangeLog

 2002-01-16  Jakub Jelinek  <jakub@redhat.com>
 
+	* gcc.dg/ultrasp4.c: New test.
+
+2002-01-16  Jakub Jelinek  <jakub@redhat.com>
+
 	* gcc.dg/20020116-2.c: New test.
 
 2002-01-15  Geoffrey Keating  <geoffk@redhat.com>

gcc/testsuite/gcc.dg/ultrasp4.c

+/* Simplified from PR target/5309.  */
+/* { dg-do compile } */
+/* { dg-options "-O2" } */
+/* { dg-options "-O2 -m64 -mcpu=ultrasparc" { target sparc64-*-* } } */
+/* { dg-options "-O2 -m64 -mcpu=ultrasparc" { target sparcv9-*-* } } */
+/* { dg-options "-O2" { target sparc-*-solaris2.[0-6] } } */
+/* { dg-options "-O2" { target sparc-*-solaris2.[0-6].* } } */
+
+long bar (unsigned int);
+long foo (long x, unsigned int y)
+{
+  return *(((long *) (bar (y) - 1)) + 1 + (x >> 2) % 359);
+}