GlobalISel: clear pending phis after MachineFunction translated

Test is just reordering the existing functions (it would trigger for any
function after one with a phi).

llvm-svn: 277841

1 files changed, 4 insertions, 0 deletions

diff --git a/llvm/lib/CodeGen/GlobalISel/IRTranslator.cpp b/llvm/lib/CodeGen/GlobalISel/IRTranslator.cpp
index 2982731bb2e..618a3859e22 100644
--- a/llvm/lib/CodeGen/GlobalISel/IRTranslator.cpp
+++ b/llvm/lib/CodeGen/GlobalISel/IRTranslator.cpp
@@ -249,6 +249,8 @@ void IRTranslator::finishPendingPhis() {
       MIB.addMBB(BBToMBB[PI->getIncomingBlock(i)]);
     }
   }
+
+  PendingPHIs.clear();
 }
 
 bool IRTranslator::translate(const Instruction &Inst) {
@@ -327,6 +329,8 @@ bool IRTranslator::runOnMachineFunction(MachineFunction &MF) {
   MRI = &MF.getRegInfo();
   DL = &F.getParent()->getDataLayout();
 
+  assert(PendingPHIs.empty() && "stale PHIs");
+
   // Setup the arguments.
   MachineBasicBlock &MBB = getOrCreateBB(F.front());
   MIRBuilder.setMBB(MBB);