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Planning for multi-valued expressions in the tilde backend

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This commit is contained in:
gingerBill
2023-07-17 23:16:50 +01:00
parent 988926b59d
commit 55733171c1
5 changed files with 45 additions and 5 deletions
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15
src/tilde_stmt.cpp
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@@ -10,6 +10,9 @@ gb_internal cgValue cg_emit_load(cgProcedure *p, cgValue const &ptr, bool is_vol
case cgValue_Addr:
GB_PANIC("NOT POSSIBLE - Cannot load an lvalue to begin with");
break;
case cgValue_Multi:
GB_PANIC("NOT POSSIBLE - Cannot load multiple values at once");
break;
case cgValue_Symbol:
return cg_lvalue_addr(tb_inst_get_symbol_address(p->func, ptr.symbol), type);
}
@@ -27,6 +30,9 @@ gb_internal cgValue cg_emit_load(cgProcedure *p, cgValue const &ptr, bool is_vol
case cgValue_Addr:
the_ptr = tb_inst_load(p->func, TB_TYPE_PTR, ptr.node, alignment, is_volatile);
break;
case cgValue_Multi:
GB_PANIC("NOT POSSIBLE - Cannot load multiple values at once");
break;
case cgValue_Symbol:
the_ptr = tb_inst_get_symbol_address(p->func, ptr.symbol);
break;
@@ -35,6 +41,8 @@ gb_internal cgValue cg_emit_load(cgProcedure *p, cgValue const &ptr, bool is_vol
}
gb_internal void cg_emit_store(cgProcedure *p, cgValue dst, cgValue const &src, bool is_volatile) {
GB_ASSERT_MSG(dst.kind != cgValue_Multi, "cannot store to multiple values at once");
if (dst.kind == cgValue_Addr) {
dst = cg_emit_load(p, dst, is_volatile);
} else if (dst.kind == cgValue_Symbol) {
@@ -130,6 +138,9 @@ gb_internal cgValue cg_address_from_load(cgProcedure *p, cgValue value) {
case cgValue_Symbol:
GB_PANIC("Symbol is an invalid use case for cg_address_from_load");
return {};
case cgValue_Multi:
GB_PANIC("Multi is an invalid use case for cg_address_from_load");
break;
}
GB_PANIC("Invalid cgValue for cg_address_from_load");
return {};
@@ -143,6 +154,8 @@ gb_internal bool cg_addr_is_empty(cgAddr const &addr) {
return addr.addr.node == nullptr;
case cgValue_Symbol:
return addr.addr.symbol == nullptr;
case cgValue_Multi:
return addr.addr.multi_nodes == nullptr;
}
return true;
}
@@ -670,6 +683,8 @@ gb_internal cgValue cg_address_from_load_or_generate_local(cgProcedure *p, cgVal
break;
case cgValue_Addr:
return cg_value(value.node, alloc_type_pointer(value.type));
case cgValue_Multi:
GB_PANIC("cgValue_Multi not allowed");
}
cgAddr res = cg_add_local(p, value.type, nullptr, false);