Don't insert lifetime end markers on deoptimizing returns

They're not necessary (since the lifetime of the alloca is trivially
over due to the return), and the way LLVM inserts the lifetime.end
markers breaks the IR (we get a lifetime end marker between the
deoptimize call and the return).

llvm-svn: 265100

1 files changed, 5 insertions, 2 deletions

diff --git a/llvm/lib/Transforms/Utils/InlineFunction.cpp b/llvm/lib/Transforms/Utils/InlineFunction.cpp
index 50eff52..4217985 100644
--- a/llvm/lib/Transforms/Utils/InlineFunction.cpp
+++ b/llvm/lib/Transforms/Utils/InlineFunction.cpp
@@ -1703,11 +1703,14 @@ bool llvm::InlineFunction(CallSite CS, InlineFunctionInfo &IFI,
 
       builder.CreateLifetimeStart(AI, AllocaSize);
       for (ReturnInst *RI : Returns) {
-        // Don't insert llvm.lifetime.end calls between a musttail call and a
-        // return.  The return kills all local allocas.
+        // Don't insert llvm.lifetime.end calls between a musttail or deoptimize
+        // call and a return.  The return kills all local allocas.
         if (InlinedMustTailCalls &&
             RI->getParent()->getTerminatingMustTailCall())
           continue;
+        if (InlinedDeoptimizeCalls &&
+            RI->getParent()->getTerminatingDeoptimizeCall())
+          continue;
         IRBuilder<>(RI).CreateLifetimeEnd(AI, AllocaSize);
       }
     }