patch to fix PR59915

Vladimir Makarov
Thu Jan 23 20:09:00 GMT 2014

  The following patch fixes

  The patch was successfully bootstrapped and tested on x86/x86-64 and
ppc64 (with -mlra).

  Committed as rev. 207007.

2014-01-23  Vladimir Makarov  <>

        PR regression/59915
        * lra-constraints.c (simplify_operand_subreg): Spill pseudo if
        there is a danger of looping.

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