From b9204a584c4494d3b057ef4ff8795572023eebbe Mon Sep 17 00:00:00 2001 From: Reid Kleckner Date: Wed, 11 Nov 2015 23:09:31 +0000 Subject: [WinEH] Don't forward branches across empty EH pad BBs For really simple SEH catchpads, we tried to forward the invoke unwind edge across the empty block. llvm-svn: 252822 --- llvm/lib/CodeGen/MachineBasicBlock.cpp | 1 + 1 file changed, 1 insertion(+) (limited to 'llvm/lib/CodeGen/MachineBasicBlock.cpp') diff --git a/llvm/lib/CodeGen/MachineBasicBlock.cpp b/llvm/lib/CodeGen/MachineBasicBlock.cpp index 8e11979ef1c..44dbf9f01c2 100644 --- a/llvm/lib/CodeGen/MachineBasicBlock.cpp +++ b/llvm/lib/CodeGen/MachineBasicBlock.cpp @@ -52,6 +52,7 @@ MCSymbol *MachineBasicBlock::getSymbol() const { const MachineFunction *MF = getParent(); MCContext &Ctx = MF->getContext(); const char *Prefix = Ctx.getAsmInfo()->getPrivateLabelPrefix(); + assert(getNumber() >= 0 && "cannot get label for unreachable MBB"); CachedMCSymbol = Ctx.getOrCreateSymbol(Twine(Prefix) + "BB" + Twine(MF->getFunctionNumber()) + "_" + Twine(getNumber())); -- cgit v1.2.3