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| author | Pete Cooper <peter_cooper@apple.com> | 2011-11-08 18:42:53 +0000 |
|---|---|---|
| committer | Pete Cooper <peter_cooper@apple.com> | 2011-11-08 18:42:53 +0000 |
| commit | d752e0f7e64585839cb3a458ef52456eaebbea3c (patch) | |
| tree | 79cfeacd373fe93faadfc504b54da791046bd87d /lib/CodeGen/SelectionDAG/LegalizeTypesGeneric.cpp | |
| parent | 30b4d8b83b7b3995ac1b53f35d3110d48676b187 (diff) | |
| download | llvm-d752e0f7e64585839cb3a458ef52456eaebbea3c.tar.gz llvm-d752e0f7e64585839cb3a458ef52456eaebbea3c.tar.bz2 llvm-d752e0f7e64585839cb3a458ef52456eaebbea3c.tar.xz | |
Added invariant field to the DAG.getLoad method and changed all calls.
When this field is true it means that the load is from constant (runt-time or compile-time) and so can be hoisted from loops or moved around other memory accesses
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@144100 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/SelectionDAG/LegalizeTypesGeneric.cpp')
| -rw-r--r-- | lib/CodeGen/SelectionDAG/LegalizeTypesGeneric.cpp | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/lib/CodeGen/SelectionDAG/LegalizeTypesGeneric.cpp b/lib/CodeGen/SelectionDAG/LegalizeTypesGeneric.cpp index 8e7e4985e4..84d334a625 100644 --- a/lib/CodeGen/SelectionDAG/LegalizeTypesGeneric.cpp +++ b/lib/CodeGen/SelectionDAG/LegalizeTypesGeneric.cpp @@ -130,7 +130,8 @@ void DAGTypeLegalizer::ExpandRes_BITCAST(SDNode *N, SDValue &Lo, SDValue &Hi) { false, false, 0); // Load the first half from the stack slot. - Lo = DAG.getLoad(NOutVT, dl, Store, StackPtr, PtrInfo, false, false, 0); + Lo = DAG.getLoad(NOutVT, dl, Store, StackPtr, PtrInfo, + false, false, false, 0); // Increment the pointer to the other half. unsigned IncrementSize = NOutVT.getSizeInBits() / 8; @@ -140,7 +141,7 @@ void DAGTypeLegalizer::ExpandRes_BITCAST(SDNode *N, SDValue &Lo, SDValue &Hi) { // Load the second half from the stack slot. Hi = DAG.getLoad(NOutVT, dl, Store, StackPtr, PtrInfo.getWithOffset(IncrementSize), false, - false, MinAlign(Alignment, IncrementSize)); + false, false, MinAlign(Alignment, IncrementSize)); // Handle endianness of the load. if (TLI.isBigEndian()) @@ -212,11 +213,12 @@ void DAGTypeLegalizer::ExpandRes_NormalLoad(SDNode *N, SDValue &Lo, unsigned Alignment = LD->getAlignment(); bool isVolatile = LD->isVolatile(); bool isNonTemporal = LD->isNonTemporal(); + bool isInvariant = LD->isInvariant(); assert(NVT.isByteSized() && "Expanded type not byte sized!"); Lo = DAG.getLoad(NVT, dl, Chain, Ptr, LD->getPointerInfo(), - isVolatile, isNonTemporal, Alignment); + isVolatile, isNonTemporal, isInvariant, Alignment); // Increment the pointer to the other half. unsigned IncrementSize = NVT.getSizeInBits() / 8; @@ -224,7 +226,7 @@ void DAGTypeLegalizer::ExpandRes_NormalLoad(SDNode *N, SDValue &Lo, DAG.getIntPtrConstant(IncrementSize)); Hi = DAG.getLoad(NVT, dl, Chain, Ptr, LD->getPointerInfo().getWithOffset(IncrementSize), - isVolatile, isNonTemporal, + isVolatile, isNonTemporal, isInvariant, MinAlign(Alignment, IncrementSize)); // Build a factor node to remember that this load is independent of the |