https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85669
--- Comment #33 from Wilco <wdijkstr at arm dot com> --- (In reply to Iain Sandoe from comment #30) > From "Mac_OS_X_ABI_Function_Calls.pdf" > > m32 calling convention > > Prologs and Epilogs > The called function is responsible for allocating its own stack frame, > making sure to preserve 16-byte alignment in the stack. This operation is > accomplished by a section of code called the prolog, which the compiler > places before the body of the subroutine. After the body of the subroutine, > the compiler places an epilog to restore the processor to the state it was > prior to the subroutine call. So functions must preserve 16-byte alignment, but can they rely on the stack being always 16-byte aligned on entry?
