Check for an end iterator from MachineBasicBlock::getFirstTerminator in
llvm::getFuncletMembership. If this is turned into an assertion, it
fires in 48 X86 testcases (for example,
CodeGen/X86/regalloc-spill-at-ehpad.ll).
Since this is likely a latent bug (shouldn't all basic blocks end with a
terminator?) I've filed PR28938.
llvm-svn: 278344
}
MachineBasicBlock::const_iterator MBBI = MBB.getFirstTerminator();
+
+ // FIXME: Should this be an assertion? It fires all over in X86.
+ if (MBBI == MBB.end())
+ continue;
+
// CatchPads are not funclets for SEH so do not consider CatchRet to
// transfer control to another funclet.
if (MBBI->getOpcode() != TII->getCatchReturnOpcode())