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Merge pull request #4611 from tf2spi/4491-max-field-align-pack

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Add packing + aligned access w/ field_align
This commit is contained in:
gingerBill
2025-01-01 18:03:44 +00:00
committed by GitHub
parent 4882eefaf8 fdf510b7b3
commit a2a0a2c8d8
3 changed files with 35 additions and 4 deletions
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src/llvm_backend_utility.cpp
+16 -3
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@@ -1200,9 +1200,22 @@ gb_internal lbValue lb_emit_struct_ep(lbProcedure *p, lbValue s, i32 index) {
lbValue gep = lb_emit_struct_ep_internal(p, s, index, result_type);
Type *bt = base_type(t);
if (bt->kind == Type_Struct && bt->Struct.is_packed) {
lb_set_metadata_custom_u64(p->module, gep.value, ODIN_METADATA_IS_PACKED, 1);
GB_ASSERT(lb_get_metadata_custom_u64(p->module, gep.value, ODIN_METADATA_IS_PACKED) == 1);
if (bt->kind == Type_Struct) {
if (bt->Struct.is_packed) {
lb_set_metadata_custom_u64(p->module, gep.value, ODIN_METADATA_IS_PACKED, 1);
GB_ASSERT(lb_get_metadata_custom_u64(p->module, gep.value, ODIN_METADATA_IS_PACKED) == 1);
}
u64 align_max = bt->Struct.custom_max_field_align;
u64 align_min = bt->Struct.custom_min_field_align;
GB_ASSERT(align_min == 0 || align_max == 0 || align_min <= align_max);
if (align_max) {
lb_set_metadata_custom_u64(p->module, gep.value, ODIN_METADATA_MAX_ALIGN, align_max);
GB_ASSERT(lb_get_metadata_custom_u64(p->module, gep.value, ODIN_METADATA_MAX_ALIGN) == align_max);
}
if (align_min) {
lb_set_metadata_custom_u64(p->module, gep.value, ODIN_METADATA_MIN_ALIGN, align_min);
GB_ASSERT(lb_get_metadata_custom_u64(p->module, gep.value, ODIN_METADATA_MIN_ALIGN) == align_min);
}
}
return gep;