mirror of
https://github.com/carbon-language/carbon-lang.git
synced 2026-10-05 13:21:05 +01:00
Jon Ross-Perkins
0722dab0ef
This changes `Destroy` to use an interface for its implementation. Note that this change includes a lot of test updates. Even when `Destroy` is a no-op, it still causes code generation as part of determining that. Originally I was trying to use ranges to cut down the scope of this, and to a degree I think they have. But a flipside here is that cases where no destructors should be generated -- particularly globals -- would be needed to completely remove destructor calls. Even for ranges, the range can often include the destructor placement. So I've shifted frame-of-thought a little: accept a bunch of destructor churn, because destructors are needed and will be prevalent. The verbosity is a feature of the design to make desugaring apparent in IR, not a bug.
112 lines
6.5 KiB
Plaintext
112 lines
6.5 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
|
|
//
|
|
// INCLUDE-FILE: toolchain/testing/testdata/min_prelude/destroy.carbon
|
|
// TODO: Add ranges and switch to "--dump-sem-ir-ranges=only".
|
|
// EXTRA-ARGS: --dump-sem-ir-ranges=if-present
|
|
//
|
|
// AUTOUPDATE
|
|
// TIP: To test this file alone, run:
|
|
// TIP: bazel test //toolchain/testing:file_test --test_arg=--file_tests=toolchain/check/testdata/function/call/alias.carbon
|
|
// TIP: To dump output, run:
|
|
// TIP: bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/check/testdata/function/call/alias.carbon
|
|
|
|
fn A() -> () { return (); }
|
|
|
|
alias B = A;
|
|
|
|
fn Main() {
|
|
var b: () = B();
|
|
}
|
|
|
|
// CHECK:STDOUT: --- alias.carbon
|
|
// CHECK:STDOUT:
|
|
// CHECK:STDOUT: constants {
|
|
// CHECK:STDOUT: %empty_tuple.type: type = tuple_type () [concrete]
|
|
// CHECK:STDOUT: %pattern_type.cb1: type = pattern_type %empty_tuple.type [concrete]
|
|
// CHECK:STDOUT: %A.type: type = fn_type @A [concrete]
|
|
// CHECK:STDOUT: %A: %A.type = struct_value () [concrete]
|
|
// CHECK:STDOUT: %empty_tuple: %empty_tuple.type = tuple_value () [concrete]
|
|
// CHECK:STDOUT: %Main.type: type = fn_type @Main [concrete]
|
|
// CHECK:STDOUT: %Main: %Main.type = struct_value () [concrete]
|
|
// CHECK:STDOUT: %Destroy.type: type = facet_type <@Destroy> [concrete]
|
|
// CHECK:STDOUT: %Op.type.bae: type = fn_type @Op.1 [concrete]
|
|
// CHECK:STDOUT: %T: type = bind_symbolic_name T, 0 [symbolic]
|
|
// CHECK:STDOUT: %Op.type.bc9: type = fn_type @Op.2, @impl(%T) [symbolic]
|
|
// CHECK:STDOUT: %Op.46f: %Op.type.bc9 = struct_value () [symbolic]
|
|
// CHECK:STDOUT: %Destroy.impl_witness.1dc: <witness> = impl_witness imports.%Destroy.impl_witness_table, @impl(%empty_tuple.type) [concrete]
|
|
// CHECK:STDOUT: %Op.type.a63: type = fn_type @Op.2, @impl(%empty_tuple.type) [concrete]
|
|
// CHECK:STDOUT: %Op.ea3: %Op.type.a63 = struct_value () [concrete]
|
|
// CHECK:STDOUT: %Destroy.facet: %Destroy.type = facet_value %empty_tuple.type, (%Destroy.impl_witness.1dc) [concrete]
|
|
// CHECK:STDOUT: %.346: type = fn_type_with_self_type %Op.type.bae, %Destroy.facet [concrete]
|
|
// CHECK:STDOUT: %Op.specific_fn: <specific function> = specific_function %Op.ea3, @Op.2(%empty_tuple.type) [concrete]
|
|
// CHECK:STDOUT: }
|
|
// CHECK:STDOUT:
|
|
// CHECK:STDOUT: imports {
|
|
// CHECK:STDOUT: %Core: <namespace> = namespace file.%Core.import, [concrete] {
|
|
// CHECK:STDOUT: .Destroy = %Core.Destroy
|
|
// CHECK:STDOUT: import Core//prelude
|
|
// CHECK:STDOUT: import Core//prelude/...
|
|
// CHECK:STDOUT: }
|
|
// CHECK:STDOUT: %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
|
|
// CHECK:STDOUT: %Core.import_ref.0b9: @impl.%Op.type (%Op.type.bc9) = import_ref Core//prelude/parts/destroy, loc8_23, loaded [symbolic = @impl.%Op (constants.%Op.46f)]
|
|
// CHECK:STDOUT: %Destroy.impl_witness_table = impl_witness_table (%Core.import_ref.0b9), @impl [concrete]
|
|
// CHECK:STDOUT: }
|
|
// CHECK:STDOUT:
|
|
// CHECK:STDOUT: file {
|
|
// CHECK:STDOUT: package: <namespace> = namespace [concrete] {
|
|
// CHECK:STDOUT: .Core = imports.%Core
|
|
// CHECK:STDOUT: .A = %A.decl
|
|
// CHECK:STDOUT: .B = %B
|
|
// CHECK:STDOUT: .Main = %Main.decl
|
|
// CHECK:STDOUT: }
|
|
// CHECK:STDOUT: %Core.import = import Core
|
|
// CHECK:STDOUT: %A.decl: %A.type = fn_decl @A [concrete = constants.%A] {
|
|
// CHECK:STDOUT: %return.patt: %pattern_type.cb1 = return_slot_pattern [concrete]
|
|
// CHECK:STDOUT: %return.param_patt: %pattern_type.cb1 = out_param_pattern %return.patt, call_param0 [concrete]
|
|
// CHECK:STDOUT: } {
|
|
// CHECK:STDOUT: %.loc15_12.1: %empty_tuple.type = tuple_literal ()
|
|
// CHECK:STDOUT: %.loc15_12.2: type = converted %.loc15_12.1, constants.%empty_tuple.type [concrete = constants.%empty_tuple.type]
|
|
// CHECK:STDOUT: %return.param: ref %empty_tuple.type = out_param call_param0
|
|
// CHECK:STDOUT: %return: ref %empty_tuple.type = return_slot %return.param
|
|
// CHECK:STDOUT: }
|
|
// CHECK:STDOUT: %A.ref: %A.type = name_ref A, %A.decl [concrete = constants.%A]
|
|
// CHECK:STDOUT: %B: %A.type = bind_alias B, %A.decl [concrete = constants.%A]
|
|
// CHECK:STDOUT: %Main.decl: %Main.type = fn_decl @Main [concrete = constants.%Main] {} {}
|
|
// CHECK:STDOUT: }
|
|
// CHECK:STDOUT:
|
|
// CHECK:STDOUT: fn @A() -> %empty_tuple.type {
|
|
// CHECK:STDOUT: !entry:
|
|
// CHECK:STDOUT: %.loc15_24: %empty_tuple.type = tuple_literal ()
|
|
// CHECK:STDOUT: %empty_tuple: %empty_tuple.type = tuple_value () [concrete = constants.%empty_tuple]
|
|
// CHECK:STDOUT: %.loc15_25: %empty_tuple.type = converted %.loc15_24, %empty_tuple [concrete = constants.%empty_tuple]
|
|
// CHECK:STDOUT: return %.loc15_25
|
|
// CHECK:STDOUT: }
|
|
// CHECK:STDOUT:
|
|
// CHECK:STDOUT: fn @Main() {
|
|
// CHECK:STDOUT: !entry:
|
|
// CHECK:STDOUT: name_binding_decl {
|
|
// CHECK:STDOUT: %b.patt: %pattern_type.cb1 = binding_pattern b [concrete]
|
|
// CHECK:STDOUT: %b.var_patt: %pattern_type.cb1 = var_pattern %b.patt [concrete]
|
|
// CHECK:STDOUT: }
|
|
// CHECK:STDOUT: %b.var: ref %empty_tuple.type = var %b.var_patt
|
|
// CHECK:STDOUT: %B.ref: %A.type = name_ref B, file.%B [concrete = constants.%A]
|
|
// CHECK:STDOUT: %A.call: init %empty_tuple.type = call %B.ref()
|
|
// CHECK:STDOUT: assign %b.var, %A.call
|
|
// CHECK:STDOUT: %.loc20_11.1: type = splice_block %.loc20_11.3 [concrete = constants.%empty_tuple.type] {
|
|
// CHECK:STDOUT: %.loc20_11.2: %empty_tuple.type = tuple_literal ()
|
|
// CHECK:STDOUT: %.loc20_11.3: type = converted %.loc20_11.2, constants.%empty_tuple.type [concrete = constants.%empty_tuple.type]
|
|
// CHECK:STDOUT: }
|
|
// CHECK:STDOUT: %b: ref %empty_tuple.type = bind_name b, %b.var
|
|
// CHECK:STDOUT: %impl.elem0: %.346 = impl_witness_access constants.%Destroy.impl_witness.1dc, element0 [concrete = constants.%Op.ea3]
|
|
// CHECK:STDOUT: %bound_method.loc20_3.1: <bound method> = bound_method %b.var, %impl.elem0
|
|
// CHECK:STDOUT: %specific_fn: <specific function> = specific_function %impl.elem0, @Op.2(constants.%empty_tuple.type) [concrete = constants.%Op.specific_fn]
|
|
// CHECK:STDOUT: %bound_method.loc20_3.2: <bound method> = bound_method %b.var, %specific_fn
|
|
// CHECK:STDOUT: %tuple: %empty_tuple.type = tuple_value () [concrete = constants.%empty_tuple]
|
|
// CHECK:STDOUT: %.loc20_3: %empty_tuple.type = converted %b.var, %tuple [concrete = constants.%empty_tuple]
|
|
// CHECK:STDOUT: %no_op: init %empty_tuple.type = call %bound_method.loc20_3.2(%.loc20_3)
|
|
// CHECK:STDOUT: return
|
|
// CHECK:STDOUT: }
|
|
// CHECK:STDOUT:
|