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fix incorrect LLVM IR for union constant when active field is void

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found in the llvm6 branch with llvm assertions on
This commit is contained in:
Andrew Kelley 2017-12-04 17:10:46 -05:00
parent a966275e50
commit 5ebed1c9ee
1 changed files with 1 additions and 1 deletions
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src/codegen.cpp
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@ -3964,7 +3964,7 @@ static LLVMValueRef gen_const_val(CodeGen *g, ConstExprValue *const_val) {
if (type_entry->data.unionation.gen_tag_index == SIZE_MAX)
return LLVMGetUndef(type_entry->type_ref);
union_value_ref = LLVMGetUndef(type_entry->data.unionation.most_aligned_union_member->type_ref);
union_value_ref = LLVMGetUndef(union_type_ref);
make_unnamed_struct = false;
} else {
uint64_t field_type_bytes = LLVMStoreSizeOfType(g->target_data_ref, payload_value->type->type_ref);