mirror of
https://github.com/carbon-language/carbon-lang.git
synced 2026-09-25 12:50:12 +01:00
Richard Smith
5b884ae14d
- Track the `VarPattern` instruction on the `VarStorage` instruction so that it's available for name mangling. - Mangle global variables based on the first binding name within their pattern. - Give global variables external rather than internal linkage, except if they have no bindings whatsoever in their pattern. - To support lowering references to bindings nested within a global var, such as for `var (x: i32, b: i32)`, add some basic initial support for reference constant expressions. Treat a global `var` as a reference constant, and treat an aggregate access into a reference constant as a reference constant.
120 lines
7.6 KiB
Plaintext
120 lines
7.6 KiB
Plaintext
// Part of the Carbon Language project, under the Apache License v2.0 with LLVM
|
|
// Exceptions. See /LICENSE for license information.
|
|
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
|
//
|
|
// AUTOUPDATE
|
|
// TIP: To test this file alone, run:
|
|
// TIP: bazel test //toolchain/testing:file_test --test_arg=--file_tests=toolchain/check/testdata/pointer/basic.carbon
|
|
// TIP: To dump output, run:
|
|
// TIP: bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/check/testdata/pointer/basic.carbon
|
|
|
|
fn F() -> i32 {
|
|
var n: i32 = 0;
|
|
var p: i32* = &n;
|
|
|
|
return *p;
|
|
}
|
|
|
|
// CHECK:STDOUT: --- basic.carbon
|
|
// CHECK:STDOUT:
|
|
// CHECK:STDOUT: constants {
|
|
// CHECK:STDOUT: %int_32: Core.IntLiteral = int_value 32 [concrete]
|
|
// CHECK:STDOUT: %Int.type: type = generic_class_type @Int [concrete]
|
|
// CHECK:STDOUT: %Int.generic: %Int.type = struct_value () [concrete]
|
|
// CHECK:STDOUT: %i32: type = class_type @Int, @Int(%int_32) [concrete]
|
|
// CHECK:STDOUT: %pattern_type.7ce: type = pattern_type %i32 [concrete]
|
|
// CHECK:STDOUT: %F.type: type = fn_type @F [concrete]
|
|
// CHECK:STDOUT: %F: %F.type = struct_value () [concrete]
|
|
// CHECK:STDOUT: %int_0.5c6: Core.IntLiteral = int_value 0 [concrete]
|
|
// CHECK:STDOUT: %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
|
|
// CHECK:STDOUT: %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
|
|
// CHECK:STDOUT: %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
|
|
// CHECK:STDOUT: %Convert.type.1b6: type = fn_type @Convert.1, @ImplicitAs(%i32) [concrete]
|
|
// CHECK:STDOUT: %To.c80: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
|
|
// CHECK:STDOUT: %Convert.type.0f9: type = fn_type @Convert.2, @impl.4f9(%To.c80) [symbolic]
|
|
// CHECK:STDOUT: %Convert.f06: %Convert.type.0f9 = struct_value () [symbolic]
|
|
// CHECK:STDOUT: %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @impl.4f9(%int_32) [concrete]
|
|
// CHECK:STDOUT: %Convert.type.035: type = fn_type @Convert.2, @impl.4f9(%int_32) [concrete]
|
|
// CHECK:STDOUT: %Convert.956: %Convert.type.035 = struct_value () [concrete]
|
|
// CHECK:STDOUT: %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
|
|
// CHECK:STDOUT: %.9c3: type = fn_type_with_self_type %Convert.type.1b6, %ImplicitAs.facet [concrete]
|
|
// CHECK:STDOUT: %Convert.bound: <bound method> = bound_method %int_0.5c6, %Convert.956 [concrete]
|
|
// CHECK:STDOUT: %Convert.specific_fn: <specific function> = specific_function %Convert.956, @Convert.2(%int_32) [concrete]
|
|
// CHECK:STDOUT: %bound_method: <bound method> = bound_method %int_0.5c6, %Convert.specific_fn [concrete]
|
|
// CHECK:STDOUT: %int_0.6a9: %i32 = int_value 0 [concrete]
|
|
// CHECK:STDOUT: %ptr.235: type = ptr_type %i32 [concrete]
|
|
// CHECK:STDOUT: %pattern_type.fe8: type = pattern_type %ptr.235 [concrete]
|
|
// CHECK:STDOUT: }
|
|
// CHECK:STDOUT:
|
|
// CHECK:STDOUT: imports {
|
|
// CHECK:STDOUT: %Core: <namespace> = namespace file.%Core.import, [concrete] {
|
|
// CHECK:STDOUT: .Int = %Core.Int
|
|
// CHECK:STDOUT: .ImplicitAs = %Core.ImplicitAs
|
|
// CHECK:STDOUT: import Core//prelude
|
|
// CHECK:STDOUT: import Core//prelude/...
|
|
// CHECK:STDOUT: }
|
|
// CHECK:STDOUT: %Core.Int: %Int.type = import_ref Core//prelude/types/int, Int, loaded [concrete = constants.%Int.generic]
|
|
// CHECK:STDOUT: %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/operators/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
|
|
// CHECK:STDOUT: %Core.import_ref.a5b: @impl.4f9.%Convert.type (%Convert.type.0f9) = import_ref Core//prelude/types/int, loc19_39, loaded [symbolic = @impl.4f9.%Convert (constants.%Convert.f06)]
|
|
// CHECK:STDOUT: %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @impl.4f9 [concrete]
|
|
// CHECK:STDOUT: }
|
|
// CHECK:STDOUT:
|
|
// CHECK:STDOUT: file {
|
|
// CHECK:STDOUT: package: <namespace> = namespace [concrete] {
|
|
// CHECK:STDOUT: .Core = imports.%Core
|
|
// CHECK:STDOUT: .F = %F.decl
|
|
// CHECK:STDOUT: }
|
|
// CHECK:STDOUT: %Core.import = import Core
|
|
// CHECK:STDOUT: %F.decl: %F.type = fn_decl @F [concrete = constants.%F] {
|
|
// CHECK:STDOUT: %return.patt: %pattern_type.7ce = return_slot_pattern [concrete]
|
|
// CHECK:STDOUT: %return.param_patt: %pattern_type.7ce = out_param_pattern %return.patt, call_param0 [concrete]
|
|
// CHECK:STDOUT: } {
|
|
// CHECK:STDOUT: %int_32.loc11: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
|
|
// CHECK:STDOUT: %i32.loc11: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
|
|
// CHECK:STDOUT: %return.param: ref %i32 = out_param call_param0
|
|
// CHECK:STDOUT: %return: ref %i32 = return_slot %return.param
|
|
// CHECK:STDOUT: }
|
|
// CHECK:STDOUT: }
|
|
// CHECK:STDOUT:
|
|
// CHECK:STDOUT: fn @F() -> %i32 {
|
|
// CHECK:STDOUT: !entry:
|
|
// CHECK:STDOUT: name_binding_decl {
|
|
// CHECK:STDOUT: %n.patt: %pattern_type.7ce = binding_pattern n [concrete]
|
|
// CHECK:STDOUT: %n.var_patt: %pattern_type.7ce = var_pattern %n.patt [concrete]
|
|
// CHECK:STDOUT: }
|
|
// CHECK:STDOUT: %n.var: ref %i32 = var %n.var_patt
|
|
// CHECK:STDOUT: %int_0: Core.IntLiteral = int_value 0 [concrete = constants.%int_0.5c6]
|
|
// CHECK:STDOUT: %impl.elem0: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Convert.956]
|
|
// CHECK:STDOUT: %bound_method.loc12_3.1: <bound method> = bound_method %int_0, %impl.elem0 [concrete = constants.%Convert.bound]
|
|
// CHECK:STDOUT: %specific_fn: <specific function> = specific_function %impl.elem0, @Convert.2(constants.%int_32) [concrete = constants.%Convert.specific_fn]
|
|
// CHECK:STDOUT: %bound_method.loc12_3.2: <bound method> = bound_method %int_0, %specific_fn [concrete = constants.%bound_method]
|
|
// CHECK:STDOUT: %int.convert_checked: init %i32 = call %bound_method.loc12_3.2(%int_0) [concrete = constants.%int_0.6a9]
|
|
// CHECK:STDOUT: %.loc12_3: init %i32 = converted %int_0, %int.convert_checked [concrete = constants.%int_0.6a9]
|
|
// CHECK:STDOUT: assign %n.var, %.loc12_3
|
|
// CHECK:STDOUT: %.loc12_10: type = splice_block %i32.loc12 [concrete = constants.%i32] {
|
|
// CHECK:STDOUT: %int_32.loc12: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
|
|
// CHECK:STDOUT: %i32.loc12: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
|
|
// CHECK:STDOUT: }
|
|
// CHECK:STDOUT: %n: ref %i32 = bind_name n, %n.var
|
|
// CHECK:STDOUT: name_binding_decl {
|
|
// CHECK:STDOUT: %p.patt: %pattern_type.fe8 = binding_pattern p [concrete]
|
|
// CHECK:STDOUT: %p.var_patt: %pattern_type.fe8 = var_pattern %p.patt [concrete]
|
|
// CHECK:STDOUT: }
|
|
// CHECK:STDOUT: %p.var: ref %ptr.235 = var %p.var_patt
|
|
// CHECK:STDOUT: %n.ref: ref %i32 = name_ref n, %n
|
|
// CHECK:STDOUT: %addr: %ptr.235 = addr_of %n.ref
|
|
// CHECK:STDOUT: assign %p.var, %addr
|
|
// CHECK:STDOUT: %.loc13: type = splice_block %ptr [concrete = constants.%ptr.235] {
|
|
// CHECK:STDOUT: %int_32.loc13: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
|
|
// CHECK:STDOUT: %i32.loc13: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
|
|
// CHECK:STDOUT: %ptr: type = ptr_type %i32.loc13 [concrete = constants.%ptr.235]
|
|
// CHECK:STDOUT: }
|
|
// CHECK:STDOUT: %p: ref %ptr.235 = bind_name p, %p.var
|
|
// CHECK:STDOUT: %p.ref: ref %ptr.235 = name_ref p, %p
|
|
// CHECK:STDOUT: %.loc15_11: %ptr.235 = bind_value %p.ref
|
|
// CHECK:STDOUT: %.loc15_10.1: ref %i32 = deref %.loc15_11
|
|
// CHECK:STDOUT: %.loc15_10.2: %i32 = bind_value %.loc15_10.1
|
|
// CHECK:STDOUT: return %.loc15_10.2
|
|
// CHECK:STDOUT: }
|
|
// CHECK:STDOUT:
|