minor : modified ZSTD_preserveUnsortedMark() to be more vectorization friendly

2018-02-05 11:46:02 -08:00
parent 94efb1749d
commit 0170cf9a7a
3 changed files with 29 additions and 16 deletions
@@ -655,6 +655,7 @@ size_t ZSTD_decodeLiteralsBlock(ZSTD_DCtx* dctx,

 typedef union {
    FSE_decode_t realData;
+    FSE_DTable dtable;
    U32 alignedBy4;
 } FSE_decode_t4;

@@ -733,7 +734,6 @@ static size_t ZSTD_buildSeqTable(FSE_DTable* DTableSpace, const FSE_DTable** DTa
                                 const void* src, size_t srcSize,
                                 const FSE_decode_t4* defaultTable, U32 flagRepeatTable)
 {
-    const void* const tmpPtr = defaultTable;   /* bypass strict aliasing */
    switch(type)
    {
    case set_rle :
@@ -743,7 +743,7 @@ static size_t ZSTD_buildSeqTable(FSE_DTable* DTableSpace, const FSE_DTable** DTa
        *DTablePtr = DTableSpace;
        return 1;
    case set_basic :
-        *DTablePtr = (const FSE_DTable*)tmpPtr;
+        *DTablePtr = &defaultTable->dtable;
        return 0;
    case set_repeat:
        if (!flagRepeatTable) return ERROR(corruption_detected);