[PR105032] LRA: modify loop condition to find reload insns for hard reg splitting

[PR105032] LRA: modify loop condition to find reload insns for hard reg splitting

When trying to split hard reg live range to assign hard reg to a reload
pseudo, LRA searches for reload insns of the reload pseudo
assuming a specific order of the reload insns.  This order is violated if
reload involved in inheritance transformation. In such case, the loop used
for reload insn searching can become infinite.  The patch fixes this.

gcc/ChangeLog:

	PR middle-end/105032
	* lra-assigns.cc (find_reload_regno_insns): Modify loop condition.

gcc/testsuite/ChangeLog:

	PR middle-end/105032
	* gcc.target/i386/pr105032.c: New.