[Bug tree-optimization/26524] [4.1 Regression] ICE when compiling with -ffast-math and -O3 clatm5.f (lapack)

[pinskia at gcc dot gnu dot org]

------- Comment #4 from pinskia at gcc dot gnu dot org  2006-03-01 23:24 -------
Reduced testcase:
      SUBROUTINE CLATM5( PRTYPE, M, N, A, LDA, B, LDB, C, LDC, D, LDD,
     $                   E, LDE, F, LDF, R, LDR, L, LDL, ALPHA, QBLCKA,
     $                   QBLCKB )
      COMPLEX            A( LDA, * ), B( LDB, * ), C( LDC, * ),
     $                   L( LDL, * ), R( LDR, * )
      COMPLEX            IMEPS, REEPS
         DO 240 I = 1, M
               IF( MOD( I, 2 ).NE.0 .AND. I.LT.M ) THEN
                  A( I, I-1 ) = -IMEPS*2
               END IF
  240    CONTINUE
      END

----

The ICE is scev, I have not looked why yet and what fixed it either on the
mainline.


-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|0                           |1
      Known to work|4.2.0                       |4.2.0 4.0.3
   Last reconfirmed|0000-00-00 00:00:00         |2006-03-01 23:24:23
               date|                            |
            Summary|ICE when compiling with -   |[4.1 Regression] ICE when
                   |ffast-math and -O3 clatm5.f |compiling with -ffast-math
                   |(lapack)                    |and -O3 clatm5.f (lapack)
   Target Milestone|---                         |4.1.1


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26524