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Force zero_init in lb_add_local in certain cases

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gingerBill
2021-05-03 15:57:35 +01:00
parent 3a556eb304
commit e4286d0ff9
2 changed files with 44 additions and 0 deletions
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src/llvm_backend.cpp
+15
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@@ -3424,6 +3424,21 @@ lbAddr lb_add_local(lbProcedure *p, Type *type, Entity *e, bool zero_init, i32 p
LLVMSetAlignment(ptr, alignment);
LLVMPositionBuilderAtEnd(p->builder, p->curr_block->block);
if (!zero_init) {
// If there is any padding of any kind, just zero init regardless of zero_init parameter
LLVMTypeKind kind = LLVMGetTypeKind(llvm_type);
if (kind == LLVMStructTypeKind) {
i64 sz = type_size_of(type);
if (type_size_of_struct_pretend_is_packed(type) != sz) {
zero_init = true;
}
} else if (kind == LLVMArrayTypeKind) {
zero_init = true;
}
}
if (zero_init) {
LLVMTypeKind kind = LLVMGetTypeKind(llvm_type);