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Let compound literal array be broadcast to a struct field of arrays

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Fixes #4364

Patch courtesy of @cribalik
This commit is contained in:
Feoramund
2025-06-05 07:31:03 -04:00
parent 9eefa2006e
commit 36b41ce163
4 changed files with 31 additions and 0 deletions
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src/llvm_backend_const.cpp
+11
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@@ -1054,9 +1054,20 @@ gb_internal lbValue lb_const_value(lbModule *m, Type *type, ExactValue value, lb
}
}
res.value = lb_build_constant_array_values(m, type, elem_type, cast(isize)type->Array.count, values, cc);
return res;
} else if (value.value_compound->tav.type == elem_type) {
// Compound is of array item type; expand its value to all items in array.
LLVMValueRef* values = gb_alloc_array(temporary_allocator(), LLVMValueRef, cast(isize)type->Array.count);
for (isize i = 0; i < type->Array.count; i++) {
values[i] = lb_const_value(m, elem_type, value, cc).value;
}
res.value = lb_build_constant_array_values(m, type, elem_type, cast(isize)type->Array.count, values, cc);
return res;
} else {
// Assume that compound value is an array literal
GB_ASSERT_MSG(elem_count == type->Array.count, "%td != %td", elem_count, type->Array.count);
LLVMValueRef *values = gb_alloc_array(temporary_allocator(), LLVMValueRef, cast(isize)type->Array.count);