* config/fixed-bit.c, config/i386/cpuid.h, config/i386/i386.c,
	config/i386/i386.md, config/i386/sse.md, function.c, jump.c,
	modulo-sched.c, ra-conflict.c, toplev.c, tree-eh.c, tree-sra.c,
	tree-ssa-dse.c, tree-vect-analyze.c, tree-vect-patterns.c,
	tree-vect-transform.c: Fix comment typos.
	* doc/extend.texi: Fix a typo.

From-SVN: r129291