Mock out more of the addr related stuff

This commit is contained in:
gingerBill
2023-07-14 17:03:28 +01:00
parent a8afcf1ca9
commit b17ebeb6f6
5 changed files with 321 additions and 133 deletions
+231 -94
View File
@@ -1,3 +1,223 @@
gb_internal cgValue cg_emit_load(cgProcedure *p, cgValue const &ptr, bool is_volatile=false) {
GB_ASSERT(is_type_pointer(ptr.type));
Type *type = type_deref(ptr.type);
TB_DataType dt = cg_data_type(type);
if (TB_IS_VOID_TYPE(dt)) {
switch (ptr.kind) {
case cgValue_Value:
return cg_lvalue_addr(ptr.node, type);
case cgValue_Addr:
GB_PANIC("NOT POSSIBLE");
break;
case cgValue_Symbol:
return cg_lvalue_addr(tb_inst_get_symbol_address(p->func, ptr.symbol), type);
}
}
TB_CharUnits alignment = 1; // for the time being
TB_Node *the_ptr = nullptr;
switch (ptr.kind) {
case cgValue_Value:
the_ptr = ptr.node;
break;
case cgValue_Addr:
the_ptr = tb_inst_load(p->func, TB_TYPE_PTR, ptr.node, alignment, is_volatile);
break;
case cgValue_Symbol:
the_ptr = tb_inst_get_symbol_address(p->func, ptr.symbol);
break;
}
return cg_value(tb_inst_load(p->func, dt, the_ptr, alignment, is_volatile), type);
}
gb_internal void cg_emit_store(cgProcedure *p, cgValue dst, cgValue const &src, bool is_volatile=false) {
if (dst.kind == cgValue_Addr) {
dst = cg_emit_load(p, dst, is_volatile);
} else if (dst.kind = cgValue_Symbol) {
dst = cg_value(tb_inst_get_symbol_address(p->func, dst.symbol), dst.type);
}
GB_ASSERT(is_type_pointer(dst.type));
Type *dst_type = type_deref(dst.type);
GB_ASSERT_MSG(are_types_identical(dst_type, src.type), "%s vs %s", type_to_string(dst_type), type_to_string(src.type));
TB_DataType dt = cg_data_type(dst_type);
TB_DataType st = cg_data_type(src.type);
GB_ASSERT(dt.raw == st.raw);
TB_CharUnits alignment = 1; // for the time being
if (TB_IS_VOID_TYPE(dt)) {
TB_Node *dst_ptr = nullptr;
TB_Node *src_ptr = nullptr;
switch (dst.kind) {
case cgValue_Value:
dst_ptr = dst.node;
break;
case cgValue_Addr:
GB_PANIC("DST cgValue_Addr should be handled above");
break;
case cgValue_Symbol:
dst_ptr = tb_inst_get_symbol_address(p->func, dst.symbol);
break;
}
switch (src.kind) {
case cgValue_Value:
GB_PANIC("SRC cgValue_Value should be handled above");
break;
case cgValue_Symbol:
GB_PANIC("SRC cgValue_Symbol should be handled above");
break;
case cgValue_Addr:
src_ptr = src.node;
break;
}
// IMPORTANT TODO(bill): needs to be memmove
i64 sz = type_size_of(dst_type);
TB_Node *count = tb_inst_uint(p->func, TB_TYPE_INT, cast(u64)sz);
tb_inst_memcpy(p->func, dst_ptr, src_ptr, count, alignment, is_volatile);
return;
}
switch (dst.kind) {
case cgValue_Value:
switch (dst.kind) {
case cgValue_Value:
tb_inst_store(p->func, dt, dst.node, src.node, alignment, is_volatile);
return;
case cgValue_Addr:
tb_inst_store(p->func, dt, dst.node,
tb_inst_load(p->func, st, src.node, alignment, is_volatile),
alignment, is_volatile);
return;
case cgValue_Symbol:
tb_inst_store(p->func, dt, dst.node,
tb_inst_get_symbol_address(p->func, src.symbol),
alignment, is_volatile);
return;
}
case cgValue_Addr:
GB_PANIC("cgValue_Addr should be handled above");
break;
case cgValue_Symbol:
GB_PANIC(" cgValue_Symbol should be handled above");
break;
}
}
gb_internal cgValue cg_address_from_load(cgProcedure *p, cgValue value) {
switch (value.kind) {
case cgValue_Value:
{
TB_Node *load_inst = value.node;
GB_ASSERT_MSG(load_inst->type == TB_LOAD, "expected a load instruction");
TB_Node *ptr = load_inst->inputs[1];
return cg_value(ptr, alloc_type_pointer(value.type));
}
case cgValue_Addr:
return cg_value(value.node, alloc_type_pointer(value.type));
case cgValue_Symbol:
GB_PANIC("Symbol is an invalid use case for cg_address_from_load");
return {};
}
}
gb_internal bool cg_addr_is_empty(cgAddr const &addr) {
switch (addr.kind) {
case cgValue_Value:
case cgValue_Addr:
return addr.addr.node == nullptr;
case cgValue_Symbol:
return addr.addr.symbol == nullptr;
}
return true;
}
gb_internal Type *cg_addr_type(cgAddr const &addr) {
if (cg_addr_is_empty(addr)) {
return nullptr;
}
switch (addr.kind) {
case cgAddr_Map:
{
Type *t = base_type(addr.map.type);
GB_ASSERT(is_type_map(t));
return t->Map.value;
}
case cgAddr_Swizzle:
return addr.swizzle.type;
case cgAddr_SwizzleLarge:
return addr.swizzle_large.type;
case cgAddr_Context:
if (addr.ctx.sel.index.count > 0) {
Type *t = t_context;
for_array(i, addr.ctx.sel.index) {
GB_ASSERT(is_type_struct(t));
t = base_type(t)->Struct.fields[addr.ctx.sel.index[i]]->type;
}
return t;
}
break;
}
return type_deref(addr.addr.type);
}
gb_internal cgValue cg_addr_load(cgProcedure *p, cgAddr addr) {
GB_PANIC("TODO(bill): cg_addr_load");
return {};
}
gb_internal void cg_addr_store(cgProcedure *p, cgAddr addr, cgValue value) {
if (cg_addr_is_empty(addr)) {
return;
}
GB_ASSERT(value.type != nullptr);
if (is_type_untyped_uninit(value.type)) {
Type *t = cg_addr_type(addr);
value = cg_value(tb_inst_poison(p->func), t);
// TODO(bill): IS THIS EVEN A GOOD IDEA?
} else if (is_type_untyped_nil(value.type)) {
Type *t = cg_addr_type(addr);
value = cg_const_nil(p, t);
}
if (addr.kind == cgAddr_RelativePointer && addr.relative.deref) {
addr = cg_addr(cg_address_from_load(p, cg_addr_load(p, addr)));
}
if (addr.kind == cgAddr_RelativePointer) {
GB_PANIC("TODO(bill): cgAddr_RelativePointer");
} else if (addr.kind == cgAddr_RelativeSlice) {
GB_PANIC("TODO(bill): cgAddr_RelativeSlice");
} else if (addr.kind == cgAddr_Map) {
GB_PANIC("TODO(bill): cgAddr_Map");
} else if (addr.kind == cgAddr_Context) {
GB_PANIC("TODO(bill): cgAddr_Context");
} else if (addr.kind == cgAddr_SoaVariable) {
GB_PANIC("TODO(bill): cgAddr_SoaVariable");
} else if (addr.kind == cgAddr_Swizzle) {
GB_ASSERT(addr.swizzle.count <= 4);
GB_PANIC("TODO(bill): cgAddr_Swizzle");
} else if (addr.kind == cgAddr_SwizzleLarge) {
GB_PANIC("TODO(bill): cgAddr_SwizzleLarge");
}
value = cg_emit_conv(p, value, cg_addr_type(addr));
cg_emit_store(p, addr.addr, value);
}
gb_internal cgBranchBlocks cg_lookup_branch_blocks(cgProcedure *p, Ast *ident) {
GB_ASSERT(ident->kind == Ast_Ident);
Entity *e = entity_of_node(ident);
@@ -91,95 +311,12 @@ gb_internal void cg_emit_defer_stmts(cgProcedure *p, cgDeferExitKind kind, TB_No
// TODO(bill): cg_emit_defer_stmts
}
gb_internal void cg_build_assignment(cgProcedure *p, Array<cgAddr> const &lhs, Slice<Ast *> const &rhs) {
}
gb_internal cgValue cg_emit_load(cgProcedure *p, cgValue const &ptr, bool is_volatile=false) {
GB_ASSERT(is_type_pointer(ptr.type));
Type *type = type_deref(ptr.type);
TB_DataType dt = cg_data_type(type);
if (TB_IS_VOID_TYPE(dt)) {
switch (ptr.kind) {
case cgValue_Value:
return cg_lvalue_addr(ptr.node, type);
case cgValue_Addr:
GB_PANIC("NOT POSSIBLE");
break;
case cgValue_Symbol:
return cg_lvalue_addr(tb_inst_get_symbol_address(p->func, ptr.symbol), type);
}
}
TB_CharUnits alignment = 1; // for the time being
TB_Node *the_ptr = nullptr;
switch (ptr.kind) {
case cgValue_Value:
the_ptr = ptr.node;
break;
case cgValue_Addr:
the_ptr = tb_inst_load(p->func, TB_TYPE_PTR, ptr.node, alignment, is_volatile);
break;
case cgValue_Symbol:
the_ptr = tb_inst_get_symbol_address(p->func, ptr.symbol);
break;
}
return cg_value(tb_inst_load(p->func, dt, the_ptr, alignment, is_volatile), type);
}
gb_internal void cg_emit_store(cgProcedure *p, cgValue dst, cgValue const &src, bool is_volatile=false) {
if (dst.kind == cgValue_Addr) {
dst = cg_emit_load(p, dst, is_volatile);
} else if (dst.kind = cgValue_Symbol) {
dst = cg_value(tb_inst_get_symbol_address(p->func, dst.symbol), dst.type);
}
GB_ASSERT(is_type_pointer(dst.type));
Type *dst_type = type_deref(dst.type);
GB_ASSERT_MSG(are_types_identical(dst_type, src.type), "%s vs %s", type_to_string(dst_type), type_to_string(src.type));
TB_DataType dt = cg_data_type(dst_type);
TB_DataType st = cg_data_type(src.type);
GB_ASSERT(dt.raw == st.raw);
if (TB_IS_VOID_TYPE(dt)) {
// TODO(bill): needs to be memmove
GB_PANIC("todo emit store to aggregate type");
gb_internal void cg_build_assignment(cgProcedure *p, Array<cgAddr> const &lvals, Slice<Ast *> const &values) {
if (values.count == 0) {
return;
}
TB_CharUnits alignment = 1; // for the time being
switch (dst.kind) {
case cgValue_Value:
switch (dst.kind) {
case cgValue_Value:
tb_inst_store(p->func, dt, dst.node, src.node, alignment, is_volatile);
return;
case cgValue_Addr:
tb_inst_store(p->func, dt, dst.node,
tb_inst_load(p->func, st, src.node, alignment, is_volatile),
alignment, is_volatile);
return;
case cgValue_Symbol:
tb_inst_store(p->func, dt, dst.node,
tb_inst_get_symbol_address(p->func, src.symbol),
alignment, is_volatile);
return;
}
case cgValue_Addr:
case cgValue_Symbol:
GB_PANIC("should be handled above");
break;
}
}
gb_internal void cg_build_assign_stmt(cgProcedure *p, AstAssignStmt *as) {
if (as->op.kind == Token_Eq) {
auto lvals = array_make<cgAddr>(permanent_allocator(), 0, as->lhs.count);
@@ -213,19 +350,19 @@ gb_internal void cg_build_assign_stmt(cgProcedure *p, AstAssignStmt *as) {
cgValue new_value = lb_emit_logical_binary_expr(p, op, as->lhs[0], as->rhs[0], type);
cgAddr lhs = lb_build_addr(p, as->lhs[0]);
lb_addr_store(p, lhs, new_value);
cg_addr_store(p, lhs, new_value);
} else {
cgAddr lhs = lb_build_addr(p, as->lhs[0]);
lbValue value = lb_build_expr(p, as->rhs[0]);
cgValue value = lb_build_expr(p, as->rhs[0]);
Type *lhs_type = lb_addr_type(lhs);
// NOTE(bill): Allow for the weird edge case of:
// array *= matrix
if (op == Token_Mul && is_type_matrix(value.type) && is_type_array(lhs_type)) {
lbValue old_value = lb_addr_load(p, lhs);
cgValue old_value = lb_addr_load(p, lhs);
Type *type = old_value.type;
lbValue new_value = lb_emit_vector_mul_matrix(p, old_value, value, type);
lb_addr_store(p, lhs, new_value);
cgValue new_value = lb_emit_vector_mul_matrix(p, old_value, value, type);
cg_addr_store(p, lhs, new_value);
return;
}
@@ -233,12 +370,12 @@ gb_internal void cg_build_assign_stmt(cgProcedure *p, AstAssignStmt *as) {
lb_build_assign_stmt_array(p, op, lhs, value);
return;
} else {
lbValue old_value = lb_addr_load(p, lhs);
cgValue old_value = lb_addr_load(p, lhs);
Type *type = old_value.type;
lbValue change = lb_emit_conv(p, value, type);
lbValue new_value = lb_emit_arith(p, op, old_value, change, type);
lb_addr_store(p, lhs, new_value);
cgValue change = lb_emit_conv(p, value, type);
cgValue new_value = lb_emit_arith(p, op, old_value, change, type);
cg_addr_store(p, lhs, new_value);
}
}
*/