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carbon-lang/toolchain/check/testdata/array/index_not_literal.carbon
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josh11bJosh LRichard Smith
 67f2c9ce26 Add a FacetValue instruction (#4545) 
The new `FacetValue` instruction represents `C as I` for some type `C`
and facet type `I`. It is named `FacetValue` instead of just `Facet` to
parallel the `FacetType` instruction.

This PR uses this instruction represent the facet value `Self` in an
`impl` declaration. This instruction will be used in the future to also
support things like:

* `C as I` where `C` is a class; and
* forming a specific for a generic with a `T:! I` parameter where `T` is
being given a concrete value.

(Here `I` is an interface or other non-`type` facet type.)

Also do some renaming and add some comments to make things a bit more
clear.

* `FacetTypeAccess` -> `FacetAccessType` to clarify this is not access
of a facet type, but access of the type of a facet
* `.facet_id` -> `.facet_value_inst_id` to parallel the `FacetValue`
instruction

`FacetAccessWitness` will be in a future PR.

---------

Co-authored-by: Josh L <josh11b@users.noreply.github.com>
Co-authored-by: Richard Smith <richard@metafoo.co.uk>
2024-11-21 22:29:53 +00:00

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// 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/array/index_not_literal.carbon
// TIP: To dump output, run:
// TIP: bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/check/testdata/array/index_not_literal.carbon
var a: [i32; 3] = (1, 2, 3);
var b: i32 = a[{.index = 2}.index];
// CHECK:STDOUT: --- index_not_literal.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: %.1: Core.IntLiteral = int_value 32 [template]
// CHECK:STDOUT: %Int.type: type = fn_type @Int [template]
// CHECK:STDOUT: %Int: %Int.type = struct_value () [template]
// CHECK:STDOUT: %i32: type = int_type signed, %.1 [template]
// CHECK:STDOUT: %.2: Core.IntLiteral = int_value 3 [template]
// CHECK:STDOUT: %.3: type = array_type %.2, %i32 [template]
// CHECK:STDOUT: %.5: Core.IntLiteral = int_value 1 [template]
// CHECK:STDOUT: %.6: Core.IntLiteral = int_value 2 [template]
// CHECK:STDOUT: %tuple.type: type = tuple_type (Core.IntLiteral, Core.IntLiteral, Core.IntLiteral) [template]
// CHECK:STDOUT: %.7: Core.IntLiteral = int_value 0 [template]
// CHECK:STDOUT: %Convert.type.2: type = fn_type @Convert.1, @ImplicitAs(%i32) [template]
// CHECK:STDOUT: %Convert.type.14: type = fn_type @Convert.2, @impl.1(%.1) [template]
// CHECK:STDOUT: %Convert.14: %Convert.type.14 = struct_value () [template]
// CHECK:STDOUT: %.31: <witness> = interface_witness (%Convert.14) [template]
// CHECK:STDOUT: %.32: <bound method> = bound_method %.5, %Convert.14 [template]
// CHECK:STDOUT: %.33: <specific function> = specific_function %.32, @Convert.2(%.1) [template]
// CHECK:STDOUT: %.34: %i32 = int_value 1 [template]
// CHECK:STDOUT: %.35: <bound method> = bound_method %.6, %Convert.14 [template]
// CHECK:STDOUT: %.36: <specific function> = specific_function %.35, @Convert.2(%.1) [template]
// CHECK:STDOUT: %.37: %i32 = int_value 2 [template]
// CHECK:STDOUT: %.38: <bound method> = bound_method %.2, %Convert.14 [template]
// CHECK:STDOUT: %.39: <specific function> = specific_function %.38, @Convert.2(%.1) [template]
// CHECK:STDOUT: %.40: %i32 = int_value 3 [template]
// CHECK:STDOUT: %array: %.3 = tuple_value (%.34, %.37, %.40) [template]
// CHECK:STDOUT: %.41: type = struct_type {.index: Core.IntLiteral} [template]
// CHECK:STDOUT: %struct: %.41 = struct_value (%.6) [template]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT: %Core: <namespace> = namespace file.%Core.import, [template] {
// CHECK:STDOUT: .Int = %import_ref.1
// CHECK:STDOUT: .ImplicitAs = %import_ref.2
// CHECK:STDOUT: import Core//prelude
// CHECK:STDOUT: import Core//prelude/...
// CHECK:STDOUT: }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT: package: <namespace> = namespace [template] {
// CHECK:STDOUT: .Core = imports.%Core
// CHECK:STDOUT: .a = %a
// CHECK:STDOUT: .b = %b
// CHECK:STDOUT: }
// CHECK:STDOUT: %Core.import = import Core
// CHECK:STDOUT: %.loc11_9.1: Core.IntLiteral = int_value 32 [template = constants.%.1]
// CHECK:STDOUT: %int.make_type_signed.loc11: init type = call constants.%Int(%.loc11_9.1) [template = constants.%i32]
// CHECK:STDOUT: %.loc11_14: Core.IntLiteral = int_value 3 [template = constants.%.2]
// CHECK:STDOUT: %.loc11_9.2: type = value_of_initializer %int.make_type_signed.loc11 [template = constants.%i32]
// CHECK:STDOUT: %.loc11_9.3: type = converted %int.make_type_signed.loc11, %.loc11_9.2 [template = constants.%i32]
// CHECK:STDOUT: %.loc11_15: type = array_type %.loc11_14, %i32 [template = constants.%.3]
// CHECK:STDOUT: %a.var: ref %.3 = var a
// CHECK:STDOUT: %a: ref %.3 = bind_name a, %a.var
// CHECK:STDOUT: %.loc12_8.1: Core.IntLiteral = int_value 32 [template = constants.%.1]
// CHECK:STDOUT: %int.make_type_signed.loc12: init type = call constants.%Int(%.loc12_8.1) [template = constants.%i32]
// CHECK:STDOUT: %.loc12_8.2: type = value_of_initializer %int.make_type_signed.loc12 [template = constants.%i32]
// CHECK:STDOUT: %.loc12_8.3: type = converted %int.make_type_signed.loc12, %.loc12_8.2 [template = constants.%i32]
// CHECK:STDOUT: %b.var: ref %i32 = var b
// CHECK:STDOUT: %b: ref %i32 = bind_name b, %b.var
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @__global_init() {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: %.loc11_20: Core.IntLiteral = int_value 1 [template = constants.%.5]
// CHECK:STDOUT: %.loc11_23: Core.IntLiteral = int_value 2 [template = constants.%.6]
// CHECK:STDOUT: %.loc11_26: Core.IntLiteral = int_value 3 [template = constants.%.2]
// CHECK:STDOUT: %.loc11_27.1: %tuple.type = tuple_literal (%.loc11_20, %.loc11_23, %.loc11_26)
// CHECK:STDOUT: %.loc11_27.2: %Convert.type.2 = interface_witness_access constants.%.31, element0 [template = constants.%Convert.14]
// CHECK:STDOUT: %.loc11_27.3: <bound method> = bound_method %.loc11_20, %.loc11_27.2 [template = constants.%.32]
// CHECK:STDOUT: %.loc11_27.4: <specific function> = specific_function %.loc11_27.3, @Convert.2(constants.%.1) [template = constants.%.33]
// CHECK:STDOUT: %int.convert_checked.loc11_27.1: init %i32 = call %.loc11_27.4(%.loc11_20) [template = constants.%.34]
// CHECK:STDOUT: %.loc11_27.5: init %i32 = converted %.loc11_20, %int.convert_checked.loc11_27.1 [template = constants.%.34]
// CHECK:STDOUT: %.loc11_27.6: Core.IntLiteral = int_value 0 [template = constants.%.7]
// CHECK:STDOUT: %.loc11_27.7: ref %i32 = array_index file.%a.var, %.loc11_27.6
// CHECK:STDOUT: %.loc11_27.8: init %i32 = initialize_from %.loc11_27.5 to %.loc11_27.7 [template = constants.%.34]
// CHECK:STDOUT: %.loc11_27.9: %Convert.type.2 = interface_witness_access constants.%.31, element0 [template = constants.%Convert.14]
// CHECK:STDOUT: %.loc11_27.10: <bound method> = bound_method %.loc11_23, %.loc11_27.9 [template = constants.%.35]
// CHECK:STDOUT: %.loc11_27.11: <specific function> = specific_function %.loc11_27.10, @Convert.2(constants.%.1) [template = constants.%.36]
// CHECK:STDOUT: %int.convert_checked.loc11_27.2: init %i32 = call %.loc11_27.11(%.loc11_23) [template = constants.%.37]
// CHECK:STDOUT: %.loc11_27.12: init %i32 = converted %.loc11_23, %int.convert_checked.loc11_27.2 [template = constants.%.37]
// CHECK:STDOUT: %.loc11_27.13: Core.IntLiteral = int_value 1 [template = constants.%.5]
// CHECK:STDOUT: %.loc11_27.14: ref %i32 = array_index file.%a.var, %.loc11_27.13
// CHECK:STDOUT: %.loc11_27.15: init %i32 = initialize_from %.loc11_27.12 to %.loc11_27.14 [template = constants.%.37]
// CHECK:STDOUT: %.loc11_27.16: %Convert.type.2 = interface_witness_access constants.%.31, element0 [template = constants.%Convert.14]
// CHECK:STDOUT: %.loc11_27.17: <bound method> = bound_method %.loc11_26, %.loc11_27.16 [template = constants.%.38]
// CHECK:STDOUT: %.loc11_27.18: <specific function> = specific_function %.loc11_27.17, @Convert.2(constants.%.1) [template = constants.%.39]
// CHECK:STDOUT: %int.convert_checked.loc11_27.3: init %i32 = call %.loc11_27.18(%.loc11_26) [template = constants.%.40]
// CHECK:STDOUT: %.loc11_27.19: init %i32 = converted %.loc11_26, %int.convert_checked.loc11_27.3 [template = constants.%.40]
// CHECK:STDOUT: %.loc11_27.20: Core.IntLiteral = int_value 2 [template = constants.%.6]
// CHECK:STDOUT: %.loc11_27.21: ref %i32 = array_index file.%a.var, %.loc11_27.20
// CHECK:STDOUT: %.loc11_27.22: init %i32 = initialize_from %.loc11_27.19 to %.loc11_27.21 [template = constants.%.40]
// CHECK:STDOUT: %.loc11_27.23: init %.3 = array_init (%.loc11_27.8, %.loc11_27.15, %.loc11_27.22) to file.%a.var [template = constants.%array]
// CHECK:STDOUT: %.loc11_28: init %.3 = converted %.loc11_27.1, %.loc11_27.23 [template = constants.%array]
// CHECK:STDOUT: assign file.%a.var, %.loc11_28
// CHECK:STDOUT: %a.ref: ref %.3 = name_ref a, file.%a
// CHECK:STDOUT: %.loc12_26: Core.IntLiteral = int_value 2 [template = constants.%.6]
// CHECK:STDOUT: %.loc12_27.1: %.41 = struct_literal (%.loc12_26)
// CHECK:STDOUT: %struct: %.41 = struct_value (%.loc12_26) [template = constants.%struct]
// CHECK:STDOUT: %.loc12_27.2: %.41 = converted %.loc12_27.1, %struct [template = constants.%struct]
// CHECK:STDOUT: %.loc12_28.1: Core.IntLiteral = struct_access %.loc12_27.2, element0 [template = constants.%.6]
// CHECK:STDOUT: %.loc12_28.2: %Convert.type.2 = interface_witness_access constants.%.31, element0 [template = constants.%Convert.14]
// CHECK:STDOUT: %.loc12_28.3: <bound method> = bound_method %.loc12_28.1, %.loc12_28.2 [template = constants.%.35]
// CHECK:STDOUT: %.loc12_28.4: <specific function> = specific_function %.loc12_28.3, @Convert.2(constants.%.1) [template = constants.%.36]
// CHECK:STDOUT: %int.convert_checked.loc12: init %i32 = call %.loc12_28.4(%.loc12_28.1) [template = constants.%.37]
// CHECK:STDOUT: %.loc12_28.5: %i32 = value_of_initializer %int.convert_checked.loc12 [template = constants.%.37]
// CHECK:STDOUT: %.loc12_28.6: %i32 = converted %.loc12_28.1, %.loc12_28.5 [template = constants.%.37]
// CHECK:STDOUT: %.loc12_34.1: ref %i32 = array_index %a.ref, %.loc12_28.6
// CHECK:STDOUT: %.loc12_34.2: %i32 = bind_value %.loc12_34.1
// CHECK:STDOUT: assign file.%b.var, %.loc12_34.2
// CHECK:STDOUT: return
// CHECK:STDOUT: }
// CHECK:STDOUT:
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