* reload.c (find_reloads): Don't clear badop if we have a

	* reload.c (find_reloads): Don't clear badop if we have a
	winreg alternative, but not win, and the class only has fixed
	regs.
	* hard-reg-set.h (class_only_fixed_regs): Declare.
	* reginfo.c (class_only_fixed_regs): New array.
	(init_reg_sets_1): Initialize it.
	* config/arm/arm.md (arm_addsi3, thumb1_addsi3, arm_subsi3_insn): Don't
	discourage alternatives using the stack pointer.

testsuite/
	* gcc.dg/pr32370.c: Allow another kind of error message.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@162019 138bc75d-0d04-0410-961f-82ee72b054a4