diff options
| 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 | 77455617fbc5e06591187be83aa349f6be8a95f8 (patch) | |
| tree | 9beb508daa85d0fc081704ec896c302e20dd8333 | |
| parent | fd6437f4f929dd7aa5304cc844478d1866f988c2 (diff) | |
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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52849 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | lib/CodeGen/SelectionDAG/DAGCombiner.cpp | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/lib/CodeGen/SelectionDAG/DAGCombiner.cpp b/lib/CodeGen/SelectionDAG/DAGCombiner.cpp index 64aa7ed5e8..38171dff75 100644 --- a/lib/CodeGen/SelectionDAG/DAGCombiner.cpp +++ b/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' |