Revert "[SimplifyCFG] Add a workaround to fix PR30188"

This reverts commit r280219. r280216 caused buildbot failures - backing out the entire chain.

llvm-svn: 280232

1 files changed, 0 insertions, 10 deletions

diff --git a/llvm/lib/Transforms/Utils/SimplifyCFG.cpp b/llvm/lib/Transforms/Utils/SimplifyCFG.cpp
index 3de6c60..3404a4d 100644
--- a/llvm/lib/Transforms/Utils/SimplifyCFG.cpp
+++ b/llvm/lib/Transforms/Utils/SimplifyCFG.cpp
@@ -1424,16 +1424,6 @@ static bool canSinkInstructions(
         // FIXME: if the call was *already* indirect, we should do this.
         return false;
       }
-      // Because SROA can't handle speculating stores of selects, try not
-      // to sink stores of allocas when we'd have to create a PHI for the
-      // address operand.
-      // FIXME: This is a workaround for a deficiency in SROA - see
-      // https://llvm.org/bugs/show_bug.cgi?id=30188
-      if (OI == 1 && isa<StoreInst>(I0) &&
-          any_of(Insts, [](const Instruction *I) {
-            return isa<AllocaInst>(I->getOperand(1));
-          }))
-        return false;
       for (auto *I : Insts)
         PHIOperands[I].push_back(I->getOperand(OI));
     }