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| author | Dan Gohman <gohman@apple.com> | 2008-06-28 00:45:22 +0000 |
|---|---|---|
| committer | Dan Gohman <gohman@apple.com> | 2008-06-28 00:45:22 +0000 |
| commit | 6f7b5a6392957c2d9fe82a50b24fc51b337fe9cc (patch) | |
| tree | 9ee1348c3a536f5687fc6f80122f37c7b24f10ee /llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp | |
| parent | 62ea6e8b6afb99bcb93e85ac654714fd42e275e3 (diff) | |
| download | bcm5719-llvm-6f7b5a6392957c2d9fe82a50b24fc51b337fe9cc.tar.gz bcm5719-llvm-6f7b5a6392957c2d9fe82a50b24fc51b337fe9cc.zip | |
When folding a bitcast into a load or store, preserve the alignment
information of the original load or store, which is checked to be
at least as good, and possibly better.
llvm-svn: 52849
Diffstat (limited to 'llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp')
| -rw-r--r-- | llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp b/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp index 64aa7ed5e82..38171dff752 100644 --- a/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp +++ b/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp @@ -3445,7 +3445,7 @@ SDOperand DAGCombiner::visitBIT_CONVERT(SDNode *N) { if (Align <= OrigAlign) { SDOperand Load = DAG.getLoad(VT, LN0->getChain(), LN0->getBasePtr(), LN0->getSrcValue(), LN0->getSrcValueOffset(), - LN0->isVolatile(), Align); + LN0->isVolatile(), OrigAlign); AddToWorkList(N); CombineTo(N0.Val, DAG.getNode(ISD::BIT_CONVERT, N0.getValueType(), Load), Load.getValue(1)); @@ -4547,7 +4547,7 @@ SDOperand DAGCombiner::visitSTORE(SDNode *N) { ((!AfterLegalize && !ST->isVolatile()) || TLI.isOperationLegal(ISD::STORE, SVT))) return DAG.getStore(Chain, Value.getOperand(0), Ptr, ST->getSrcValue(), - ST->getSrcValueOffset(), ST->isVolatile(), Align); + ST->getSrcValueOffset(), ST->isVolatile(), OrigAlign); } // Turn 'store float 1.0, Ptr' -> 'store int 0x12345678, Ptr' |
