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Initialize the IndexedModeActions array with memset before
updating it with calls to setIndexedLoadAction/setIndexedStoreAction, which only update a few bits at a time. This avoids ostensible undefined behavior of operationg on values which may be trap-representations, and as a practical matter fixes errors from valgrind, which doesn't track uninitialized memory with bit granularity. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38468 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -128,7 +128,9 @@ TargetLowering::TargetLowering(TargetMachine &tm)
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memset(OpActions, 0, sizeof(OpActions));
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memset(LoadXActions, 0, sizeof(LoadXActions));
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memset(&StoreXActions, 0, sizeof(StoreXActions));
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// Initialize all indexed load / store to expand.
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memset(&IndexedModeActions, 0, sizeof(IndexedModeActions));
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// Set all indexed load / store to expand.
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for (unsigned VT = 0; VT != (unsigned)MVT::LAST_VALUETYPE; ++VT) {
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for (unsigned IM = (unsigned)ISD::PRE_INC;
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IM != (unsigned)ISD::LAST_INDEXED_MODE; ++IM) {
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