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Correct hashing for union #maybe

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gingerBill
2021-05-03 13:40:36 +01:00
parent 1a3784c4df
commit 050f128554
1 changed files with 12 additions and 2 deletions
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14
src/llvm_backend.cpp
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@@ -10429,8 +10429,19 @@ lbValue lb_get_hasher_proc_for_type(lbModule *m, Type *type) {
}
LLVMBuildRet(p->builder, seed.value);
} else if (type->kind == Type_Union) {
lbBlock *end_block = lb_create_block(p, "bend");
auto args = array_make<lbValue>(permanent_allocator(), 2);
if (is_type_union_maybe_pointer(type)) {
Type *v = type->Union.variants[0];
lbValue variant_hasher = lb_get_hasher_proc_for_type(m, v);
args[0] = data;
args[1] = seed;
lbValue res = lb_emit_call(p, variant_hasher, args);
LLVMBuildRet(p->builder, res.value);
}
lbBlock *end_block = lb_create_block(p, "bend");
data = lb_emit_conv(p, data, pt);
lbValue tag_ptr = lb_emit_union_tag_ptr(p, data);
@@ -10438,7 +10449,6 @@ lbValue lb_get_hasher_proc_for_type(lbModule *m, Type *type) {
LLVMValueRef v_switch = LLVMBuildSwitch(p->builder, tag.value, end_block->block, cast(unsigned)type->Union.variants.count);
auto args = array_make<lbValue>(permanent_allocator(), 2);
for_array(i, type->Union.variants) {
lbBlock *case_block = lb_create_block(p, "bcase");
lb_start_block(p, case_block);