mirror of
https://github.com/carbon-language/carbon-lang.git
synced 2026-09-24 19:50:14 +01:00
Dana Jansens
4416f3525b
Use a single `SemIR::Function` per `Core` interface method, whether it's generated locally or imported. This prevents generating duplicate functions, which lead to different types when the witness appears in a `FacetValue` as part of a specific for a class. We use a `CanonicalValueStore` of `GeneratedFunction` objects that allow finding an existing FunctionId for a `Generated` special function before (re-)generating it. Mangling for `Generated` functions is also moved to use the values from the `GeneratedFunction`'s canonicalization key, so that we have a consistent source of truth for the unique ID of a `Generated` function across all files. New tests are in `toolchain/check/testdata/impl/custom_witness/destroy.carbon`.
85 lines
5.3 KiB
Plaintext
85 lines
5.3 KiB
Plaintext
// Part of the Carbon Language project, under the Apache License v2.0 with LLVM
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// Exceptions. See /LICENSE for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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// INCLUDE-FILE: toolchain/testing/testdata/min_prelude/destroy.carbon
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//
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// AUTOUPDATE
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// TIP: To test this file alone, run:
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// TIP: bazel test //toolchain/testing:file_test --test_arg=--file_tests=toolchain/check/testdata/basics/duplicate_name_same_line.carbon
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// TIP: To dump output, run:
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// TIP: bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/check/testdata/basics/duplicate_name_same_line.carbon
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fn A() {
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if (true) {
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// This declares `n` in two different scopes, it's just showing the IR
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// behavior of having both on the same line.
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//@dump-sem-ir-begin
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var unused n: () = (); } else { var unused n: () = ();
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//@dump-sem-ir-end
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}
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}
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// CHECK:STDOUT: --- duplicate_name_same_line.carbon
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// CHECK:STDOUT:
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// CHECK:STDOUT: constants {
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// CHECK:STDOUT: %empty_tuple.type: type = tuple_type () [concrete]
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// CHECK:STDOUT: %empty_tuple: %empty_tuple.type = tuple_value () [concrete]
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// CHECK:STDOUT: %pattern_type.cb1: type = pattern_type %empty_tuple.type [concrete]
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// CHECK:STDOUT: %n.patt.785a0d.1: %pattern_type.cb1 = ref_binding_pattern n [concrete]
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// CHECK:STDOUT: %n.var_patt.961036.1: %pattern_type.cb1 = var_pattern %n.patt.785a0d.1 [concrete]
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// CHECK:STDOUT: %Destroy.WithSelf.Op.type.ef0: type = fn_type @Destroy.WithSelf.Op.loc18 [concrete]
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// CHECK:STDOUT: %Destroy.WithSelf.Op.403: %Destroy.WithSelf.Op.type.ef0 = struct_value () [concrete]
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// CHECK:STDOUT: %n.patt.785a0d.2: %pattern_type.cb1 = ref_binding_pattern n [concrete]
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// CHECK:STDOUT: %n.var_patt.961036.2: %pattern_type.cb1 = var_pattern %n.patt.785a0d.2 [concrete]
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: fn @A() {
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// CHECK:STDOUT: !entry:
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// CHECK:STDOUT: <elided>
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// CHECK:STDOUT:
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// CHECK:STDOUT: !if.then:
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// CHECK:STDOUT: %n.var.loc18_5: ref %empty_tuple.type = var_storage %n.var_patt.loc18_5
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// CHECK:STDOUT: %.loc18_25.1: %empty_tuple.type = tuple_literal () [concrete = constants.%empty_tuple]
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// CHECK:STDOUT: %.loc18_25.2: init %empty_tuple.type = tuple_init () [concrete = constants.%empty_tuple]
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// CHECK:STDOUT: %.loc18_5: init %empty_tuple.type = converted %.loc18_25.1, %.loc18_25.2 [concrete = constants.%empty_tuple]
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// CHECK:STDOUT: assign %n.var.loc18_5, %.loc18_5
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// CHECK:STDOUT: %.loc18_20.1: type = splice_block %.loc18_20.3 [concrete = constants.%empty_tuple.type] {
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// CHECK:STDOUT: %.loc18_20.2: %empty_tuple.type = tuple_literal () [concrete = constants.%empty_tuple]
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// CHECK:STDOUT: %.loc18_20.3: type = converted %.loc18_20.2, constants.%empty_tuple.type [concrete = constants.%empty_tuple.type]
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// CHECK:STDOUT: }
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// CHECK:STDOUT: %n.loc18_17: ref %empty_tuple.type = wrapper_binding n, %n.var.loc18_5
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// CHECK:STDOUT: name_binding_decl {
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// CHECK:STDOUT: %n.patt.loc18_17: %pattern_type.cb1 = ref_binding_pattern n [concrete = constants.%n.patt.785a0d.1]
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// CHECK:STDOUT: %n.var_patt.loc18_5: %pattern_type.cb1 = var_pattern %n.patt.loc18_17 [concrete = constants.%n.var_patt.961036.1]
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// CHECK:STDOUT: }
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// CHECK:STDOUT: %Destroy.WithSelf.Op.bound.loc18_5: <bound method> = bound_method %n.var.loc18_5, constants.%Destroy.WithSelf.Op.403
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// CHECK:STDOUT: %Destroy.WithSelf.Op.call.loc18_5: init %empty_tuple.type = call %Destroy.WithSelf.Op.bound.loc18_5(%n.var.loc18_5)
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// CHECK:STDOUT: <elided>
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// CHECK:STDOUT:
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// CHECK:STDOUT: !if.else:
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// CHECK:STDOUT: %n.var.loc18_37: ref %empty_tuple.type = var_storage %n.var_patt.loc18_37
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// CHECK:STDOUT: %.loc18_57.1: %empty_tuple.type = tuple_literal () [concrete = constants.%empty_tuple]
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// CHECK:STDOUT: %.loc18_57.2: init %empty_tuple.type = tuple_init () [concrete = constants.%empty_tuple]
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// CHECK:STDOUT: %.loc18_37: init %empty_tuple.type = converted %.loc18_57.1, %.loc18_57.2 [concrete = constants.%empty_tuple]
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// CHECK:STDOUT: assign %n.var.loc18_37, %.loc18_37
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// CHECK:STDOUT: %.loc18_52.1: type = splice_block %.loc18_52.3 [concrete = constants.%empty_tuple.type] {
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// CHECK:STDOUT: %.loc18_52.2: %empty_tuple.type = tuple_literal () [concrete = constants.%empty_tuple]
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// CHECK:STDOUT: %.loc18_52.3: type = converted %.loc18_52.2, constants.%empty_tuple.type [concrete = constants.%empty_tuple.type]
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// CHECK:STDOUT: }
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// CHECK:STDOUT: %n.loc18_49: ref %empty_tuple.type = wrapper_binding n, %n.var.loc18_37
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// CHECK:STDOUT: name_binding_decl {
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// CHECK:STDOUT: %n.patt.loc18_49: %pattern_type.cb1 = ref_binding_pattern n [concrete = constants.%n.patt.785a0d.2]
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// CHECK:STDOUT: %n.var_patt.loc18_37: %pattern_type.cb1 = var_pattern %n.patt.loc18_49 [concrete = constants.%n.var_patt.961036.2]
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// CHECK:STDOUT: }
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// CHECK:STDOUT: %Destroy.WithSelf.Op.bound.loc18_37: <bound method> = bound_method %n.var.loc18_37, constants.%Destroy.WithSelf.Op.403
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// CHECK:STDOUT: %Destroy.WithSelf.Op.call.loc18_37: init %empty_tuple.type = call %Destroy.WithSelf.Op.bound.loc18_37(%n.var.loc18_37)
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// CHECK:STDOUT: <elided>
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// CHECK:STDOUT:
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// CHECK:STDOUT: !if.done:
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// CHECK:STDOUT: <elided>
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: fn @Destroy.WithSelf.Op.loc18(%self.param: ref %empty_tuple.type) = "no_op";
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// CHECK:STDOUT:
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