re PR middle-end/37843 (unaligned stack in main due to tail call optimization)

re PR middle-end/37843 (unaligned stack in main due to tail call optimization)

gcc/

2008-11-25  H.J. Lu  <hongjiu.lu@intel.com>
	    Joey Ye  <joey.ye@intel.com>

	PR middle-end/37843
	* config/i386/i386.c (ix86_function_ok_for_sibcall): Return
	false if we need to align the outgoing stack.
	(ix86_update_stack_boundary): Check parm_stack_boundary.

gcc/testsuite/

2008-11-25  H.J. Lu  <hongjiu.lu@intel.com>

	PR middle-end/37843
	* gcc.target/i386/align-main-3.c: New.
	* gcc.target/i386/pr37843-1.c: Likewise.
	* gcc.target/i386/pr37843-2.c: Likewise.
	* gcc.target/i386/pr37843-3.c: Likewise.

Co-Authored-By: Joey Ye <joey.ye@intel.com>
From-SVN: r142193