Revision f230a1cf deps/v8/src/hydrogen-uint32-analysis.cc

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deps/v8/src/hydrogen-uint32-analysis.cc
35 35 
  // Operations that operate on bits are safe.
36 36 
  if (use->IsBitwise() || use->IsShl() || use->IsSar() || use->IsShr()) {
37 37 
    return true;
38 
  } else if (use->IsChange() || use->IsSimulate()) {
39 
    // Conversions and deoptimization have special support for unt32.
38 
  } else if (use->IsSimulate()) {
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    // Deoptimization has special support for uint32.
40 
    return true;
41 
  } else if (use->IsChange()) {
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    // Conversions have special support for uint32.
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    // This ASSERT guards that the conversion in question is actually
44 
    // implemented. Do not extend the whitelist without adding
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    // support to LChunkBuilder::DoChange().
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    ASSERT(HChange::cast(use)->to().IsDouble() ||
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           HChange::cast(use)->to().IsSmi() ||
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           HChange::cast(use)->to().IsTagged());
40 49 
    return true;
41 50 
  } else if (use->IsStoreKeyed()) {
42 51 
    HStoreKeyed* store = HStoreKeyed::cast(use);

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