PR tree-optimization/57104
	* tsan.c (instrument_expr): Don't instrument accesses to
	DECL_HARD_REGISTER VAR_DECLs.

	* gcc.dg/pr57104.c: New test.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@198445 138bc75d-0d04-0410-961f-82ee72b054a4