re PR rtl-optimization/42294 (ICE in code_motion_path_driver for 416.gamess)

2010-01-14  Alexander Monakov  <amonakov@ispras.ru>

	PR rtl-optimization/42294
	* sel-sched-ir.h (struct _sel_insn_data): Update comment.
	* sel-sched.c (move_exprs_to_boundary): Transitively add all
	originators' originators.

	* gfortran.dg/pr42294.f: New.

From-SVN: r155893

gcc/ChangeLog

 2010-01-14  Alexander Monakov  <amonakov@ispras.ru>
 
+	PR rtl-optimization/42294
+	* sel-sched-ir.h (struct _sel_insn_data): Update comment.
+	* sel-sched.c (move_exprs_to_boundary): Transitively add all
+	originators' originators.
+
+2010-01-14  Alexander Monakov  <amonakov@ispras.ru>
+
 	PR rtl-optimization/39453
 	PR rtl-optimization/42246
 	* sel-sched-ir.c (considered_for_pipelining_p): Do not test

gcc/sel-sched-ir.h

@@ -715,7 +715,8 @@ struct _sel_insn_data
   bitmap found_deps;
 
   /* An INSN_UID bit is set when this is a bookkeeping insn generated from
-     a parent with this uid.  */
+     a parent with this uid.  If a parent is a bookkeeping copy, all its
+     originators are transitively included in this set.  */
   bitmap originators;
 
   /* A hashtable caching the result of insn transformations through this one.  */

gcc/sel-sched.c

@@ -5208,12 +5208,21 @@ move_exprs_to_boundary (bnd_t bnd, expr_t expr_vliw,
 
   EXECUTE_IF_SET_IN_BITMAP (current_copies, 0, book_uid, bi)
     {
+      unsigned uid;
+      bitmap_iterator bi;
+
       /* We allocate these bitmaps lazily.  */
       if (! INSN_ORIGINATORS_BY_UID (book_uid))
         INSN_ORIGINATORS_BY_UID (book_uid) = BITMAP_ALLOC (NULL);
 
       bitmap_copy (INSN_ORIGINATORS_BY_UID (book_uid),
                    current_originators);
+
+      /* Transitively add all originators' originators.  */
+      EXECUTE_IF_SET_IN_BITMAP (current_originators, 0, uid, bi)
+       if (INSN_ORIGINATORS_BY_UID (uid))
+	 bitmap_ior_into (INSN_ORIGINATORS_BY_UID (book_uid),
+			  INSN_ORIGINATORS_BY_UID (uid));
     }
 
   return should_move;

gcc/testsuite/ChangeLog

 2010-01-14  Alexander Monakov <amonakov@ispras.ru>
 
+	PR rtl-optimization/42294
+	* gfortran.dg/pr42294.f: New.
+
+2010-01-14  Alexander Monakov <amonakov@ispras.ru>
+
 	PR rtl-optimization/39453
 	PR rtl-optimization/42246
 	* gcc.dg/pr39453.c: New.

gcc/testsuite/gfortran.dg/pr42294.f

+C PR rtl-optimization/42294
+C { dg-do compile { target powerpc*-*-* ia64-*-* x86_64-*-* } }
+C { dg-options "-O2 -fselective-scheduling2 -fsel-sched-pipelining -funroll-all-loops" }
+
+      SUBROUTINE ORIEN(IW,NATOT,NTOTORB,NATORB,P,T)
+      IMPLICIT DOUBLE PRECISION(A-H,O-Z)
+      DIMENSION NATORB(NATOT),P(NTOTORB*(NTOTORB+1)/2)
+      DIMENSION T(NTOTORB,NTOTORB)
+      DO 9000 IATOM=1,NATOT
+         ILAST = NTOTORB
+         IF (IATOM.NE.NATOT) ILAST=NATORB(IATOM+1)-1
+         DO 8000 IAOI=NATORB(IATOM),ILAST
+            DO 7000 IAOJ = IAOI+1,ILAST
+               R2 = 0.0D+00
+               R3 = 0.0D+00
+               DO 6000 INOTA=1,NATOT
+                  DO 5000 IK=NATORB(INOTA),NTOTORB
+                     IMAI=MAX(IK,IAOI)
+                     IMII=MIN(IK,IAOI)
+                     IMAJ=MAX(IK,IAOJ)
+                     IMIJ=MIN(IK,IAOJ)
+                     IKI=(IMAI*(IMAI-1))/2 + IMII
+                     IKJ=(IMAJ*(IMAJ-1))/2 + IMIJ
+                     PIKI=P(IKI)
+                     PIKJ=P(IKJ)
+                     R2 = R2 + (PIKI**4)-6*(PIKI*PIKI*PIKJ*PIKJ)+(PIKJ)
+ 5000             CONTINUE
+ 6000          CONTINUE
+               R2 = (R2/4.0D+00)
+               Q = SQRT(R2*R2 + R3*R3)
+               IF (Q.LT.1.0D-08) GO TO 7000
+               A = COS(THETA)
+               B = -SIN(THETA)
+               CALL ROT1INT(NTOTORB,IAOI,IAOJ,A,B,P)
+ 7000       CONTINUE
+ 8000    CONTINUE
+ 9000 CONTINUE
+      RETURN
+      END
+
+