[Bug tree-optimization/29921] New: [4.3 regression]: internal compiler error: in set_lattice_value, at tree-ssa-ccp.c:437

["hjl at lucon dot org" <gcc-bugzilla at gcc dot gnu dot org>]

With gcc version 4.3.0 20061120 (experimental) [trunk revision 119024],
on Linux/x86 and Linux/x86-64, I got

[hjl@gnu-68 build_base_o2.0000]$ cat foo.f
      SUBROUTINE foo
      IMPLICIT DOUBLE PRECISION (A-H,O-Z)
      LOGICAL MASWRK
      COMMON /FRAME / W1,W2,W3
      COMMON /FRAMES/ X1,Y1,Z1,X2,Y2,Z2,X3,Y3,Z3
      PARAMETER (ZERO=0.0D+00, ONE=1.0D+00)
      IF (IGROUP .EQ. 1) GO TO 600
      IF (IGROUP .EQ. 2) GO TO 620
  600 NT = 1
  620 CONTINUE
      IF (RHO .GT. TOL) THEN
         Y3 = RFIND('Y3      ',IERR)
            IF(IERR.NE.0) CALL ABRT
         Z3 = RFIND('Z3      ',IERR)
            IF(IERR.NE.0) CALL ABRT
         IF (MASWRK) WRITE (IP,9048) X3,Y3,Z3
      ELSE
         X1 = ZERO
         Y1 = ZERO
         Z1 = ZERO
         Z3 = ZERO
         X2 = ONE
         Y3 = ONE
      END IF
      W2 = (Z2-Z1)*(X3-X1)-(Z3-Z1)*(X2-X1)
 9048 FORMAT(9F10.5)
      END
[hjl@gnu-68 build_base_o2.0000]$ /usr/gcc-4.3/bin/gfortran -S -O2 foo.f
-ffast-math
foo.f: In function â??fooâ??:
foo.f:1: internal compiler error: in set_lattice_value, at tree-ssa-ccp.c:437
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.
[hjl@gnu-68 build_base_o2.0000]$


-- 
           Summary: [4.3 regression]: internal compiler error: in
                    set_lattice_value, at tree-ssa-ccp.c:437
           Product: gcc
           Version: 4.3.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: tree-optimization
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: hjl at lucon dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29921