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fix type switching over internal pointer union

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Fixes #3947
This commit is contained in:
Laytan Laats
2024-08-12 00:02:05 +02:00
parent 26fa3aca44
commit 99aa0d3a35
2 changed files with 25 additions and 1 deletions
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src/llvm_backend_stmt.cpp
+1 -1
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@@ -1646,7 +1646,7 @@ gb_internal void lb_build_type_switch_stmt(lbProcedure *p, AstTypeSwitchStmt *ss
union_data = lb_emit_conv(p, parent_ptr, t_rawptr);
Type *union_type = type_deref(parent_ptr.type);
if (is_type_union_maybe_pointer(union_type)) {
tag = lb_emit_conv(p, lb_emit_comp_against_nil(p, Token_NotEq, union_data), t_int);
tag = lb_emit_conv(p, lb_emit_comp_against_nil(p, Token_NotEq, parent_value), t_int);
} else if (union_tag_size(union_type) == 0) {
tag = {}; // there is no tag for a zero sized union
} else {