* config/i386/constraints.md (Bw): Rename from 'w'.
	(Bz): Rename from 'z'.
	* config/i386/i386.md: Change 'w' to 'Bw' and 'z' to 'Bz' globally.



git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@211119 138bc75d-0d04-0410-961f-82ee72b054a4
	* gcc.target/i386/sibcall-2.c: Xfail dg-final scan-assembler-not,
	not compilation.
	* gcc.target/i386/sibcall-4.c: Ditto.
	* gcc.target/i386/fuse-caller-save.c: Add -mregparm=1 for ia32 target.



git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@211120 138bc75d-0d04-0410-961f-82ee72b054a4