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carbon-lang/toolchain/check/testdata/function/call/empty_tuple.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
fn Echo(a: ()) -> () {
return a;
}
fn Main() {
Echo(());
}
// CHECK:STDOUT: --- empty_tuple.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: %.1: type = tuple_type () [template]
// CHECK:STDOUT: %.2: () = tuple_value () [template]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT: package: <namespace> = namespace package, {.Echo = %Echo, .Main = %Main} [template]
// CHECK:STDOUT: %Echo: <function> = fn_decl @Echo [template]
// CHECK:STDOUT: %Main: <function> = fn_decl @Main [template]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @Echo(%a: ()) -> () {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: %a.ref: () = name_ref a, %a
// CHECK:STDOUT: return %a.ref
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @Main() {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: %Echo.ref: <function> = name_ref Echo, file.%Echo [template = file.%Echo]
// CHECK:STDOUT: %.loc12_9.1: () = tuple_literal ()
// CHECK:STDOUT: %.loc12_9.2: () = tuple_value () [template = constants.%.2]
// CHECK:STDOUT: %.loc12_9.3: () = converted %.loc12_9.1, %.loc12_9.2 [template = constants.%.2]
// CHECK:STDOUT: %.loc12_7: init () = call %Echo.ref(%.loc12_9.3)
// CHECK:STDOUT: return
// CHECK:STDOUT: }
// CHECK:STDOUT: