re PR middle-end/81030 (ICE on valid code at -O1 (only) on x86_64-linux-gnu: verify_flow_info failed)


	PR middle-end/81030
	* cfgbuild.c (find_many_sub_basic_blocks): Update REG_BR_PROB note
	when gimple level profile disagrees with what RTL expander did.
	* gcc.dg/pr81030.c: New test.

From-SVN: r250383