re PR rtl-optimization/55330 (ICE: Maximum number of LRA constraint passes is...

re PR rtl-optimization/55330 (ICE: Maximum number of LRA constraint passes is achieved (15) on gfortran.dg/actual_array_constructor_1.f90)

2012-11-16  Vladimir Makarov  <vmakarov@redhat.com>

	PR rtl-optimization/55330
	* lra-constraints.c (MAX_INHERITANCE_PASSES): New macro.
	(lra_inheritance, lra_undo_inheritance): Use it to limit number of
	the passes.

2012-11-16  Vladimir Makarov  <vmakarov@redhat.com>

	PR rtl-optimization/55330
	* gfortran.dg/pr55330.f90: New test.

From-SVN: r193567