re PR tree-optimization/53217 (internal compiler error: verify_ssa failed)

re PR tree-optimization/53217 (internal compiler error: verify_ssa failed)

gcc:

2012-05-16  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

	PR tree-optimization/53217
	* tree-ssa-reassoc.c (bip_map): New static variable.
	(possibly_move_powi): Move feeding multiplies with __builtin_powi call.
	(attempt_builtin_powi): Save feeding multiplies on a stack.
	(reassociate_bb): Create and destroy bip_map.

gcc/testsuite:

2012-05-16  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

	PR tree-optimization/53217
	* gfortran.dg/pr53217.f90: New test.

From-SVN: r187595