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carbon-lang/toolchain/check/testdata/function/call/empty_struct.carbon
T
Richard Smith 6d5e62974c Add SemIR instruction to track that a conversion was performed. (#3363)
Instead of ad-hoc conversion tracking on some kinds of nodes that
conversion creates, consolidate tracking into a single node kind. This
frees up an operand on `Init` instructions that can be used to store the
destination.
2023-11-09 23:58:54 +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
fn Echo(a: {}) -> {} {
return a;
}
fn Main() {
Echo({});
}
// CHECK:STDOUT: constants {
// CHECK:STDOUT: %.loc7_13.1: type = struct_type {}
// CHECK:STDOUT: %.loc7_13.2: type = tuple_type ()
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file "empty_struct.carbon" {
// CHECK:STDOUT: %Echo: <function> = fn_decl @Echo
// CHECK:STDOUT: %Main: <function> = fn_decl @Main
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @Echo(%a: {}) -> {} {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: %a.ref: {} = name_reference a, %a
// CHECK:STDOUT: return %a.ref
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @Main() {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: %Echo.ref: <function> = name_reference Echo, file.%Echo
// CHECK:STDOUT: %.loc12_9.1: {} = struct_literal ()
// CHECK:STDOUT: %.loc12_9.2: {} = struct_value ()
// CHECK:STDOUT: %.loc12_9.3: {} = converted %.loc12_9.1, %.loc12_9.2
// CHECK:STDOUT: %.loc12_7: init {} = call %Echo.ref(%.loc12_9.3)
// CHECK:STDOUT: return
// CHECK:STDOUT: }