diff options
Diffstat (limited to 'lib/Transforms/Utils/LCSSA.cpp')
-rw-r--r-- | lib/Transforms/Utils/LCSSA.cpp | 24 |
1 files changed, 23 insertions, 1 deletions
diff --git a/lib/Transforms/Utils/LCSSA.cpp b/lib/Transforms/Utils/LCSSA.cpp index a9d1dc40cf..39314678bd 100644 --- a/lib/Transforms/Utils/LCSSA.cpp +++ b/lib/Transforms/Utils/LCSSA.cpp @@ -217,7 +217,29 @@ void LCSSA::getLoopValuesUsedOutsideLoop(Loop *L, } if (*BB != UserBB && !inLoop(UserBB)) { - AffectedValues.insert(I); + const StructType *STy = dyn_cast<StructType>(I->getType()); + if (STy) { + // I is a call or an invoke that returns multiple values. + // These values are accessible through getresult only. + // If the getresult value is not in the BB then move it + // immediately here. It will be processed in next iteration. + BasicBlock::iterator InsertPoint; + if (InvokeInst *II = dyn_cast<InvokeInst>(I)) { + InsertPoint = II->getNormalDest()->begin(); + while (isa<PHINode>(InsertPoint)) + ++InsertPoint; + } else { + InsertPoint = I; + InsertPoint++; + } + for (Value::use_iterator TmpI = I->use_begin(), + TmpE = I->use_end(); TmpI != TmpE; ++TmpI) { + GetResultInst *GR = cast<GetResultInst>(TmpI); + if (GR->getParent() != *BB) + GR->moveBefore(InsertPoint); + } + } else + AffectedValues.insert(I); break; } } |