vendor/llvm/llvm-release_40-r293807

3 files changed, 10 insertions, 2 deletions

diff --git a/lib/Transforms/InstCombine/InstCombineCompares.cpp b/lib/Transforms/InstCombine/InstCombineCompares.cpp
index 013159cde7740..bca1304534b63 100644
--- a/lib/Transforms/InstCombine/InstCombineCompares.cpp
+++ b/lib/Transforms/InstCombine/InstCombineCompares.cpp
@@ -884,6 +884,10 @@ static Instruction *transformToIndexedCompare(GEPOperator *GEPLHS, Value *RHS,
   if (!GEPLHS->hasAllConstantIndices())
     return nullptr;
 
+  // Make sure the pointers have the same type.
+  if (GEPLHS->getType() != RHS->getType())
+    return nullptr;
+
   Value *PtrBase, *Index;
   std::tie(PtrBase, Index) = getAsConstantIndexedAddress(GEPLHS, DL);
 
diff --git a/lib/Transforms/InstCombine/InstCombineLoadStoreAlloca.cpp b/lib/Transforms/InstCombine/InstCombineLoadStoreAlloca.cpp
index 388c5e4e7fa4e..49e516e9c1761 100644
--- a/lib/Transforms/InstCombine/InstCombineLoadStoreAlloca.cpp
+++ b/lib/Transforms/InstCombine/InstCombineLoadStoreAlloca.cpp
@@ -502,7 +502,8 @@ static Instruction *combineLoadToOperationType(InstCombiner &IC, LoadInst &LI) {
       !DL.isNonIntegralPointerType(Ty)) {
     if (all_of(LI.users(), [&LI](User *U) {
           auto *SI = dyn_cast<StoreInst>(U);
-          return SI && SI->getPointerOperand() != &LI;
+          return SI && SI->getPointerOperand() != &LI &&
+                 !SI->getPointerOperand()->isSwiftError();
         })) {
       LoadInst *NewLoad = combineLoadToNewType(
           IC, LI,
diff --git a/lib/Transforms/Scalar/SCCP.cpp b/lib/Transforms/Scalar/SCCP.cpp
index 34be90692481b..ede381c4c2430 100644
--- a/lib/Transforms/Scalar/SCCP.cpp
+++ b/lib/Transforms/Scalar/SCCP.cpp
@@ -1705,7 +1705,10 @@ static bool runIPSCCP(Module &M, const DataLayout &DL,
 
     // If this is an exact definition of this function, then we can propagate
     // information about its result into callsites of it.
-    if (F.hasExactDefinition())
+    // Don't touch naked functions. They may contain asm returning a
+    // value we don't see, so we may end up interprocedurally propagating
+    // the return value incorrectly.
+    if (F.hasExactDefinition() && !F.hasFnAttribute(Attribute::Naked))
       Solver.AddTrackedFunction(&F);
 
     // If this function only has direct calls that we can see, we can track its