mirror of https://github.com/madler/zlib
Suppress MSAN detections in deflate's slide_hash().
slide_hash() knowingly reads potentially uninitialized memory, see comment lower down about prev[n] potentially being garbage. In this case, the result is never used.
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@ -179,6 +179,11 @@ local const config configuration_table[10] = {
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* bit values at the expense of memory usage). We slide even when level == 0 to
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* keep the hash table consistent if we switch back to level > 0 later.
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*/
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#if defined(__has_feature)
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# if __has_feature(memory_sanitizer)
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__attribute__((no_sanitize("memory")))
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# endif
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#endif
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local void slide_hash(deflate_state *s) {
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unsigned n, m;
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Posf *p;
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