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Subject: [Bug middle-end/26001] [4.1/4.2 Regression] LAPACK testsuite failure with optimization
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------- Comment #9 from pinskia at gcc dot gnu dot org  2006-01-30 19:08 -------
Actually it is not complete unrolling that is going wrong but expand.

  static char intstr[1:10] = "0123456789";

;; if (c1$1 == intstr[1]{lb: 1 sz: 1}) (void) 0; else goto <L35>;
(insn 85 83 86 (set (reg:CCZ 17 flags)
        (compare:CCZ (reg:QI 68 [ c1$1 ])
            (const_int 49 [0x31]))) -1 (nil)
    (nil))


See how we compare that again '1' and not '0'.


-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
          Component|tree-optimization           |middle-end


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26001