Emit the Itanium LSDA for unknown EH personalities on Win64

This fixes lots of generic CodeGen tests that use __gcc_personality_v0.
This suggests that using ExceptionHandling::MSVC was a mistake, and we
should instead classify each function by personality function. This
would, for example, allow us to LTO a binary containing uses of SEH and
Itanium EH.

llvm-svn: 226019

1 files changed, 4 insertions, 0 deletions

diff --git a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
index 4f031d3ff7e..90fcb624691 100644
--- a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
@@ -941,6 +941,10 @@ void SelectionDAGISel::PrepareEHLandingPad() {
         *MBB, MBB->begin(), SDB->getCurDebugLoc(), TII->get(TargetOpcode::PHI),
         FuncInfo->ExceptionSelectorVirtReg);
     for (unsigned I = 0, E = LPadInst->getNumClauses(); I != E; ++I) {
+      // Skip filter clauses, we can't implement them yet.
+      if (LPadInst->isFilter(I))
+        continue;
+
       MachineBasicBlock *ClauseBB = MF->CreateMachineBasicBlock(LLVMBB);
       MF->insert(MBB, ClauseBB);