diff options
Diffstat (limited to 'llvm/lib/Transforms/Scalar/RewriteStatepointsForGC.cpp')
-rw-r--r-- | llvm/lib/Transforms/Scalar/RewriteStatepointsForGC.cpp | 18 |
1 files changed, 9 insertions, 9 deletions
diff --git a/llvm/lib/Transforms/Scalar/RewriteStatepointsForGC.cpp b/llvm/lib/Transforms/Scalar/RewriteStatepointsForGC.cpp index a82750b2374..db8254cff64 100644 --- a/llvm/lib/Transforms/Scalar/RewriteStatepointsForGC.cpp +++ b/llvm/lib/Transforms/Scalar/RewriteStatepointsForGC.cpp @@ -1239,12 +1239,12 @@ static void recomputeLiveInValues( } } -// When inserting gc.relocate calls, we need to ensure there are no uses -// of the original value between the gc.statepoint and the gc.relocate call. -// One case which can arise is a phi node starting one of the successor blocks. -// We also need to be able to insert the gc.relocates only on the path which -// goes through the statepoint. We might need to split an edge to make this -// possible. +// When inserting gc.relocate and gc.result calls, we need to ensure there are +// no uses of the original value / return value between the gc.statepoint and +// the gc.relocate / gc.result call. One case which can arise is a phi node +// starting one of the successor blocks. We also need to be able to insert the +// gc.relocates only on the path which goes through the statepoint. We might +// need to split an edge to make this possible. static BasicBlock * normalizeForInvokeSafepoint(BasicBlock *BB, BasicBlock *InvokeParent, DominatorTree &DT) { @@ -1252,14 +1252,14 @@ normalizeForInvokeSafepoint(BasicBlock *BB, BasicBlock *InvokeParent, if (!BB->getUniquePredecessor()) Ret = SplitBlockPredecessors(BB, InvokeParent, "", &DT); - // Now that 'ret' has unique predecessor we can safely remove all phi nodes + // Now that 'Ret' has unique predecessor we can safely remove all phi nodes // from it FoldSingleEntryPHINodes(Ret); assert(!isa<PHINode>(Ret->begin()) && "All PHI nodes should have been removed!"); - // At this point, we can safely insert a gc.relocate as the first instruction - // in Ret if needed. + // At this point, we can safely insert a gc.relocate or gc.result as the first + // instruction in Ret if needed. return Ret; } |