According to MSDN (see the PR), functions which don't touch any callee-saved
registers (including %rsp) don't need any unwind info.
This patch makes LLVM not emit unwind info for such functions, to save
binary size.
Differential Revision: https://reviews.llvm.org/D24748
llvm-svn: 282185
We used different conditions to determine if we should emit startproc vs
endproc. Use the same condition to ensure that they will always be
paired.
This fixes PR24374.
llvm-svn: 247435