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authorDimitry Andric <dim@FreeBSD.org>2017-01-29 20:58:36 +0000
committerDimitry Andric <dim@FreeBSD.org>2017-01-29 20:58:36 +0000
commitaac4ca60bc813a35242145a1f92f325303d5df6e (patch)
tree54239710d884acb23a5547b772e5743386c7ff0b /lib/CodeGen
parent02a336801959d4fc2ea0657d4489596e1ecbfee0 (diff)
Vendor import of llvm release_40 branch r293443:vendor/llvm/llvm-release_40-r293443
Diffstat (limited to 'lib/CodeGen')
-rw-r--r--lib/CodeGen/SelectionDAG/LegalizeVectorTypes.cpp5
1 files changed, 4 insertions, 1 deletions
diff --git a/lib/CodeGen/SelectionDAG/LegalizeVectorTypes.cpp b/lib/CodeGen/SelectionDAG/LegalizeVectorTypes.cpp
index 27a9ac337f25..6906f67ebacb 100644
--- a/lib/CodeGen/SelectionDAG/LegalizeVectorTypes.cpp
+++ b/lib/CodeGen/SelectionDAG/LegalizeVectorTypes.cpp
@@ -3439,7 +3439,10 @@ SDValue DAGTypeLegalizer::GenWidenVectorLoads(SmallVectorImpl<SDValue> &LdChain,
LD->getPointerInfo().getWithOffset(Offset),
MinAlign(Align, Increment), MMOFlags, AAInfo);
LdChain.push_back(L.getValue(1));
- if (L->getValueType(0).isVector()) {
+ if (L->getValueType(0).isVector() && NewVTWidth >= LdWidth) {
+ // Later code assumes the vector loads produced will be mergeable, so we
+ // must pad the final entry up to the previous width. Scalars are
+ // combined separately.
SmallVector<SDValue, 16> Loads;
Loads.push_back(L);
unsigned size = L->getValueSizeInBits(0);