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script optimization fixes for "concretizing" vector-of-any's

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Vern Paxson 2024-01-10 18:24:01 -08:00 • committed by Arne Welzel
parent fc12ac2b06
commit bae87fb606
4 changed files with 78 additions and 29 deletions
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8
src/script_opt/Reduce.cc
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@ -124,6 +124,14 @@ StmtPtr Reducer::GenParam(const IDPtr& id, ExprPtr rhs, bool is_modified) {
// the inline block's execution.
is_modified = true;
auto& id_t = id->GetType();
if ( id_t->Tag() == TYPE_VECTOR && rhs->GetType()->Yield() != id_t->Yield() )
// Presumably either the identifier or the RHS is a vector-of-any.
// This means there will essentially be a modification of the RHS
// due to the need to use (or omit) operations coercing from such
// vectors.
is_modified = true;
if ( ! is_modified ) {
// Can use a temporary variable, which then supports
// optimization via alias propagation.