X86: Stop dereferencing end() in X86FrameLowering::emitEpilogue
On a Windows build of Chromium, r278532 (up to r278539)
X86FrameLowering::emitEpilogue because it wasn't wary enough of the
return of MachineBasicBlock::getFirstTerminator. Guard all the uses
here.
Note that r278532 *looks* like an NFC commit (just an API change), but
it removes a couple of layers of abstraction and is probably causing
optimization differences in MSVC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278572 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed