* doc/contrib.texi: Add contribution notes for Balaji Iyer (Cilk+)
        and Jonny Grant (collect2).

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@216984 138bc75d-0d04-0410-961f-82ee72b054a4
	PR rtl-optimization/63659
	* ree.c (update_reg_equal_equiv_notes): New function.
	(combine_set_extension, transform_ifelse): Use it.

	* gcc.c-torture/execute/pr63659.c: New test.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@216985 138bc75d-0d04-0410-961f-82ee72b054a4
	PR target/63620
	* config/i386/i386.md (*pushtf): Allow only CONST_DOUBLES that won't
	be reloaded through memory.
	(*pushxf): Ditto.
	(*pushdf): Ditto.



git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@216987 138bc75d-0d04-0410-961f-82ee72b054a4