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carbon-lang/toolchain/check/testdata/array/generic_empty.carbon
T

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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/generic_empty.carbon
// TIP: To dump output, run:
// TIP: bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/check/testdata/array/generic_empty.carbon
fn G(T:! type) {
// We can initialize this without knowing T.
var arr: [T; 0] = ();
}
// CHECK:STDOUT: --- generic_empty.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: %T: type = bind_symbolic_name T 0 [symbolic]
// CHECK:STDOUT: %G.type: type = fn_type @G [template]
// CHECK:STDOUT: %.1: type = tuple_type () [template]
// CHECK:STDOUT: %G: %G.type = struct_value () [template]
// CHECK:STDOUT: %.2: i32 = int_literal 0 [template]
// CHECK:STDOUT: %.3: type = array_type %.2, %T [symbolic]
// CHECK:STDOUT: %.4: type = ptr_type %.3 [symbolic]
// CHECK:STDOUT: %array: %.3 = tuple_value () [symbolic]
// CHECK:STDOUT: %.5: type = ptr_type @G.%.loc13_17 (%.3) [symbolic]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT: package: <namespace> = namespace [template] {
// CHECK:STDOUT: .Core = %Core
// CHECK:STDOUT: .G = %G.decl
// CHECK:STDOUT: }
// CHECK:STDOUT: %Core.import = import Core
// CHECK:STDOUT: %Core: <namespace> = namespace %Core.import, [template] {}
// CHECK:STDOUT: %G.decl: %G.type = fn_decl @G [template = constants.%G] {
// CHECK:STDOUT: %T.loc11_6.1: type = param T
// CHECK:STDOUT: @G.%T: type = bind_symbolic_name T 0, %T.loc11_6.1 [symbolic = @G.%T (constants.%T)]
// CHECK:STDOUT: }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @G(%T: type)
// CHECK:STDOUT: generic [%T: type] {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: %T.ref: type = name_ref T, %T [symbolic = %T.ref (constants.%T)]
// CHECK:STDOUT: %.loc13_16: i32 = int_literal 0 [template = constants.%.2]
// CHECK:STDOUT: %.loc13_17: type = array_type %.loc13_16, %T [symbolic = %.loc13_17 (constants.%.3)]
// CHECK:STDOUT: %arr.var: ref @G.%.loc13_17 (%.3) = var arr
// CHECK:STDOUT: %arr: ref @G.%.loc13_17 (%.3) = bind_name arr, %arr.var
// CHECK:STDOUT: %.loc13_22.1: %.1 = tuple_literal ()
// CHECK:STDOUT: %.loc13_22.2: init @G.%.loc13_17 (%.3) = array_init () to %arr.var [symbolic = %.loc13_22.2 (constants.%array)]
// CHECK:STDOUT: %.loc13_23: init @G.%.loc13_17 (%.3) = converted %.loc13_22.1, %.loc13_22.2 [symbolic = %.loc13_22.2 (constants.%array)]
// CHECK:STDOUT: assign %arr.var, %.loc13_23
// CHECK:STDOUT: return
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific file.%G.decl(constants.%T) {
// CHECK:STDOUT: declaration:
// CHECK:STDOUT: @G.%T => constants.%T
// CHECK:STDOUT: }
// CHECK:STDOUT: