compiler: Check for nil when slicing pointer to array.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@205942 138bc75d-0d04-0410-961f-82ee72b054a4
	* i386.md (simple LEA peephole2): Add missing mode to zero_extend
	for zero-extended MULT simple LEA pattern.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@205943 138bc75d-0d04-0410-961f-82ee72b054a4
compiler: Better error messages for { on line after if/for/switch.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@205944 138bc75d-0d04-0410-961f-82ee72b054a4