AA metadata refactoring (introduce AAMDNodes)

In order to enable the preservation of noalias function parameter information
after inlining, and the representation of block-level __restrict__ pointer
information (etc.), additional kinds of aliasing metadata will be introduced.
This metadata needs to be carried around in AliasAnalysis::Location objects
(and MMOs at the SDAG level), and so we need to generalize the current scheme
(which is hard-coded to just one TBAA MDNode*).

This commit introduces only the necessary refactoring to allow for the
introduction of other aliasing metadata types, but does not actually introduce
any (that will come in a follow-up commit). What it does introduce is a new
AAMDNodes structure to hold all of the aliasing metadata nodes associated with
a particular memory-accessing instruction, and uses that structure instead of
the raw MDNode* in AliasAnalysis::Location, etc.

No functionality change intended.

llvm-svn: 213859

1 files changed, 5 insertions, 5 deletions

diff --git a/llvm/lib/CodeGen/SelectionDAG/LegalizeVectorOps.cpp b/llvm/lib/CodeGen/SelectionDAG/LegalizeVectorOps.cpp
index 507e7ffb1d4..208255cfe73 100644
--- a/llvm/lib/CodeGen/SelectionDAG/LegalizeVectorOps.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/LegalizeVectorOps.cpp
@@ -480,7 +480,7 @@ SDValue VectorLegalizer::ExpandLoad(SDValue Op) {
                                  LD->getPointerInfo().getWithOffset(Offset),
                                  LD->isVolatile(), LD->isNonTemporal(),
                                  LD->isInvariant(), LD->getAlignment(),
-                                 LD->getTBAAInfo());
+                                 LD->getAAInfo());
       } else {
         EVT LoadVT = WideVT;
         while (RemainingBytes < LoadBytes) {
@@ -491,7 +491,7 @@ SDValue VectorLegalizer::ExpandLoad(SDValue Op) {
                                     LD->getPointerInfo().getWithOffset(Offset),
                                     LoadVT, LD->isVolatile(),
                                     LD->isNonTemporal(), LD->getAlignment(),
-                                    LD->getTBAAInfo());
+                                    LD->getAAInfo());
       }
 
       RemainingBytes -= LoadBytes;
@@ -562,7 +562,7 @@ SDValue VectorLegalizer::ExpandLoad(SDValue Op) {
                 Chain, BasePTR, LD->getPointerInfo().getWithOffset(Idx * Stride),
                 SrcVT.getScalarType(),
                 LD->isVolatile(), LD->isNonTemporal(),
-                LD->getAlignment(), LD->getTBAAInfo());
+                LD->getAlignment(), LD->getAAInfo());
 
       BasePTR = DAG.getNode(ISD::ADD, dl, BasePTR.getValueType(), BasePTR,
                          DAG.getConstant(Stride, BasePTR.getValueType()));
@@ -593,7 +593,7 @@ SDValue VectorLegalizer::ExpandStore(SDValue Op) {
   unsigned Alignment = ST->getAlignment();
   bool isVolatile = ST->isVolatile();
   bool isNonTemporal = ST->isNonTemporal();
-  const MDNode *TBAAInfo = ST->getTBAAInfo();
+  AAMDNodes AAInfo = ST->getAAInfo();
 
   unsigned NumElem = StVT.getVectorNumElements();
   // The type of the data we want to save
@@ -621,7 +621,7 @@ SDValue VectorLegalizer::ExpandStore(SDValue Op) {
     // This scalar TruncStore may be illegal, but we legalize it later.
     SDValue Store = DAG.getTruncStore(Chain, dl, Ex, BasePTR,
                ST->getPointerInfo().getWithOffset(Idx*Stride), MemSclVT,
-               isVolatile, isNonTemporal, Alignment, TBAAInfo);
+               isVolatile, isNonTemporal, Alignment, AAInfo);
 
     BasePTR = DAG.getNode(ISD::ADD, dl, BasePTR.getValueType(), BasePTR,
                                DAG.getConstant(Stride, BasePTR.getValueType()));