------- Comment #12 from hjl at lucon dot org 2007-10-04 00:01 ------- (In reply to comment #11)
> This only helps x86 really. If you look at my patch, it already implements > (correctly) handling large cases like 128byte alignment (which people use with > the Cell). What you are proposing will cause more stack to be used than > actually required and more complex for the normal case. If you look at my > patch, you will see it handles 1-4 issues nicely without any problems (because > the stack itself is not realigned). Oh on PPC, the stack pointer has to be > correct so you cannot use frame pointer to be the old stack pointer. Does your patch handle register spill which needs a larger alignment? What is the impact of your approach on performance when stack alignment is needed for local variable as well as register spill? -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=16660
