re PR rtl-optimization/49619 (ICE in simplify_subreg, at simplify-rtx.c:5362)
PR rtl-optimization/49619 * combine.c (combine_simplify_rtx): In PLUS -> IOR simplification pass VOIDmode as op0_mode to recursive call, and return temp even when different from tor, just if it is not IOR of the original PLUS arguments. * gcc.dg/pr49619.c: New test. From-SVN: r175825
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gcc/testsuite/gcc.dg/pr49619.c
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