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Fix comparison of two nil unions against each other

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gingerBill
2023-08-16 11:52:40 +01:00
parent 8b4c530062
commit 15033eab28
1 changed files with 17 additions and 2 deletions
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src/llvm_backend.cpp
+16 -1
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@@ -241,8 +241,23 @@ gb_internal lbValue lb_equal_proc_for_type(lbModule *m, Type *type) {
lb_emit_if(p, tag_eq, block_switch, block_false);
lb_start_block(p, block_switch);
LLVMValueRef v_switch = LLVMBuildSwitch(p->builder, left_tag.value, block_false->block, cast(unsigned)type->Union.variants.count);
unsigned variant_count = cast(unsigned)type->Union.variants.count;
if (type->Union.kind != UnionType_no_nil) {
variant_count += 1;
}
LLVMValueRef v_switch = LLVMBuildSwitch(p->builder, left_tag.value, block_false->block, variant_count);
if (type->Union.kind != UnionType_no_nil) {
lbBlock *case_block = lb_create_block(p, "bcase");
lb_start_block(p, case_block);
lbValue case_tag = lb_const_int(p->module, union_tag_type(type), 0);
LLVMBuildRet(p->builder, LLVMConstInt(lb_type(m, t_bool), 1, false));
LLVMAddCase(v_switch, case_tag.value, case_block->block);
}
for (Type *v : type->Union.variants) {
lbBlock *case_block = lb_create_block(p, "bcase");