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carbon-lang/toolchain/check/testdata/struct/reorder_fields.carbon
T
Geoff RomerandJon Ross-Perkins dc32aa2690 Initial support for binding patterns in SemIR (#4221) 
Introduces the `BindingPattern` and `SymbolicBindingPattern` insts, and
a separate stack of pattern blocks that they are emitted into. The
intent is to generate the corresponding pattern-matching insts (like
`BindName`) from them in a separate pass, but that is deferred to future
PRs.

See
[here](https://docs.google.com/document/d/1U_vQH17V893J9aF1LJXUnFYBNSs2MjKl4bJPaWCB2zo/edit?usp=sharing&resourcekey=0-w0xGYZ0An31Kpz-wvzSXwQ)
for the design this is based on, but note that during review we have
chosen to deviate from that design by putting the patterns in separate
blocks, and omitting the "forward references" from a `BindingPattern` to
its corresponding `BindName`. This in turn necessitates having separate
inst kinds for symbolic and non-symbolic binding patterns.

---------

Co-authored-by: Jon Ross-Perkins <jperkins@google.com>
2024-09-25 19:12:58 +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/struct/reorder_fields.carbon
// TIP: To dump output, run:
// TIP: bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/check/testdata/struct/reorder_fields.carbon
fn MakeI32() -> i32;
fn MakeF64() -> f64;
fn F() -> {.a: i32, .b: f64} {
let x: {.a: i32, .b: f64} = {.b = MakeF64(), .a = MakeI32()};
let y: {.b: f64, .a: i32} = x;
return y;
}
// CHECK:STDOUT: --- reorder_fields.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: %Int32.type: type = fn_type @Int32 [template]
// CHECK:STDOUT: %.1: type = tuple_type () [template]
// CHECK:STDOUT: %Int32: %Int32.type = struct_value () [template]
// CHECK:STDOUT: %MakeI32.type: type = fn_type @MakeI32 [template]
// CHECK:STDOUT: %MakeI32: %MakeI32.type = struct_value () [template]
// CHECK:STDOUT: %.2: i32 = int_literal 64 [template]
// CHECK:STDOUT: %Float.type: type = fn_type @Float [template]
// CHECK:STDOUT: %Float: %Float.type = struct_value () [template]
// CHECK:STDOUT: %MakeF64.type: type = fn_type @MakeF64 [template]
// CHECK:STDOUT: %MakeF64: %MakeF64.type = struct_value () [template]
// CHECK:STDOUT: %.3: type = struct_type {.a: i32, .b: f64} [template]
// CHECK:STDOUT: %F.type: type = fn_type @F [template]
// CHECK:STDOUT: %F: %F.type = struct_value () [template]
// CHECK:STDOUT: %.4: type = ptr_type %.3 [template]
// CHECK:STDOUT: %.5: type = struct_type {.b: f64, .a: i32} [template]
// CHECK:STDOUT: %.6: type = ptr_type %.5 [template]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT: %Core: <namespace> = namespace file.%Core.import, [template] {
// CHECK:STDOUT: .Int32 = %import_ref.1
// CHECK:STDOUT: .Float = %import_ref.2
// CHECK:STDOUT: import Core//prelude
// CHECK:STDOUT: import Core//prelude/operators
// CHECK:STDOUT: import Core//prelude/types
// CHECK:STDOUT: import Core//prelude/operators/arithmetic
// CHECK:STDOUT: import Core//prelude/operators/as
// CHECK:STDOUT: import Core//prelude/operators/bitwise
// CHECK:STDOUT: import Core//prelude/operators/comparison
// CHECK:STDOUT: import Core//prelude/types/bool
// CHECK:STDOUT: }
// CHECK:STDOUT: %import_ref.1: %Int32.type = import_ref Core//prelude/types, inst+4, loaded [template = constants.%Int32]
// CHECK:STDOUT: %import_ref.2: %Float.type = import_ref Core//prelude/types, inst+35, loaded [template = constants.%Float]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT: package: <namespace> = namespace [template] {
// CHECK:STDOUT: .Core = imports.%Core
// CHECK:STDOUT: .MakeI32 = %MakeI32.decl
// CHECK:STDOUT: .MakeF64 = %MakeF64.decl
// CHECK:STDOUT: .F = %F.decl
// CHECK:STDOUT: }
// CHECK:STDOUT: %Core.import = import Core
// CHECK:STDOUT: %MakeI32.decl: %MakeI32.type = fn_decl @MakeI32 [template = constants.%MakeI32] {} {
// CHECK:STDOUT: %int.make_type_32: init type = call constants.%Int32() [template = i32]
// CHECK:STDOUT: %.loc11_17.1: type = value_of_initializer %int.make_type_32 [template = i32]
// CHECK:STDOUT: %.loc11_17.2: type = converted %int.make_type_32, %.loc11_17.1 [template = i32]
// CHECK:STDOUT: %return: ref i32 = var <return slot>
// CHECK:STDOUT: }
// CHECK:STDOUT: %MakeF64.decl: %MakeF64.type = fn_decl @MakeF64 [template = constants.%MakeF64] {} {
// CHECK:STDOUT: %.loc12_17.1: i32 = int_literal 64 [template = constants.%.2]
// CHECK:STDOUT: %float.make_type: init type = call constants.%Float(%.loc12_17.1) [template = f64]
// CHECK:STDOUT: %.loc12_17.2: type = value_of_initializer %float.make_type [template = f64]
// CHECK:STDOUT: %.loc12_17.3: type = converted %float.make_type, %.loc12_17.2 [template = f64]
// CHECK:STDOUT: %return: ref f64 = var <return slot>
// CHECK:STDOUT: }
// CHECK:STDOUT: %F.decl: %F.type = fn_decl @F [template = constants.%F] {} {
// CHECK:STDOUT: %int.make_type_32.loc14: init type = call constants.%Int32() [template = i32]
// CHECK:STDOUT: %.loc14_16.1: type = value_of_initializer %int.make_type_32.loc14 [template = i32]
// CHECK:STDOUT: %.loc14_16.2: type = converted %int.make_type_32.loc14, %.loc14_16.1 [template = i32]
// CHECK:STDOUT: %.loc14_25.1: i32 = int_literal 64 [template = constants.%.2]
// CHECK:STDOUT: %float.make_type.loc14: init type = call constants.%Float(%.loc14_25.1) [template = f64]
// CHECK:STDOUT: %.loc14_25.2: type = value_of_initializer %float.make_type.loc14 [template = f64]
// CHECK:STDOUT: %.loc14_25.3: type = converted %float.make_type.loc14, %.loc14_25.2 [template = f64]
// CHECK:STDOUT: %.loc14_28: type = struct_type {.a: i32, .b: f64} [template = constants.%.3]
// CHECK:STDOUT: %return: ref %.3 = var <return slot>
// CHECK:STDOUT: }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @Int32() -> type = "int.make_type_32";
// CHECK:STDOUT:
// CHECK:STDOUT: fn @MakeI32() -> i32;
// CHECK:STDOUT:
// CHECK:STDOUT: fn @Float(%size: i32) -> type = "float.make_type";
// CHECK:STDOUT:
// CHECK:STDOUT: fn @MakeF64() -> f64;
// CHECK:STDOUT:
// CHECK:STDOUT: fn @F() -> %return: %.3 {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: %int.make_type_32.loc15: init type = call constants.%Int32() [template = i32]
// CHECK:STDOUT: %.loc15_15.1: type = value_of_initializer %int.make_type_32.loc15 [template = i32]
// CHECK:STDOUT: %.loc15_15.2: type = converted %int.make_type_32.loc15, %.loc15_15.1 [template = i32]
// CHECK:STDOUT: %.loc15_24.1: i32 = int_literal 64 [template = constants.%.2]
// CHECK:STDOUT: %float.make_type.loc15: init type = call constants.%Float(%.loc15_24.1) [template = f64]
// CHECK:STDOUT: %.loc15_24.2: type = value_of_initializer %float.make_type.loc15 [template = f64]
// CHECK:STDOUT: %.loc15_24.3: type = converted %float.make_type.loc15, %.loc15_24.2 [template = f64]
// CHECK:STDOUT: %.loc15_27: type = struct_type {.a: i32, .b: f64} [template = constants.%.3]
// CHECK:STDOUT: %MakeF64.ref: %MakeF64.type = name_ref MakeF64, file.%MakeF64.decl [template = constants.%MakeF64]
// CHECK:STDOUT: %MakeF64.call: init f64 = call %MakeF64.ref()
// CHECK:STDOUT: %MakeI32.ref: %MakeI32.type = name_ref MakeI32, file.%MakeI32.decl [template = constants.%MakeI32]
// CHECK:STDOUT: %MakeI32.call: init i32 = call %MakeI32.ref()
// CHECK:STDOUT: %.loc15_62.1: %.5 = struct_literal (%MakeF64.call, %MakeI32.call)
// CHECK:STDOUT: %.loc15_62.2: i32 = value_of_initializer %MakeI32.call
// CHECK:STDOUT: %.loc15_62.3: i32 = converted %MakeI32.call, %.loc15_62.2
// CHECK:STDOUT: %.loc15_62.4: f64 = value_of_initializer %MakeF64.call
// CHECK:STDOUT: %.loc15_62.5: f64 = converted %MakeF64.call, %.loc15_62.4
// CHECK:STDOUT: %struct.loc15: %.3 = struct_value (%.loc15_62.3, %.loc15_62.5)
// CHECK:STDOUT: %.loc15_63: %.3 = converted %.loc15_62.1, %struct.loc15
// CHECK:STDOUT: %x: %.3 = bind_name x, %.loc15_63
// CHECK:STDOUT: %.loc16_15.1: i32 = int_literal 64 [template = constants.%.2]
// CHECK:STDOUT: %float.make_type.loc16: init type = call constants.%Float(%.loc16_15.1) [template = f64]
// CHECK:STDOUT: %.loc16_15.2: type = value_of_initializer %float.make_type.loc16 [template = f64]
// CHECK:STDOUT: %.loc16_15.3: type = converted %float.make_type.loc16, %.loc16_15.2 [template = f64]
// CHECK:STDOUT: %int.make_type_32.loc16: init type = call constants.%Int32() [template = i32]
// CHECK:STDOUT: %.loc16_24.1: type = value_of_initializer %int.make_type_32.loc16 [template = i32]
// CHECK:STDOUT: %.loc16_24.2: type = converted %int.make_type_32.loc16, %.loc16_24.1 [template = i32]
// CHECK:STDOUT: %.loc16_27: type = struct_type {.b: f64, .a: i32} [template = constants.%.5]
// CHECK:STDOUT: %x.ref: %.3 = name_ref x, %x
// CHECK:STDOUT: %.loc16_31.1: f64 = struct_access %x.ref, element1
// CHECK:STDOUT: %.loc16_31.2: i32 = struct_access %x.ref, element0
// CHECK:STDOUT: %struct.loc16: %.5 = struct_value (%.loc16_31.1, %.loc16_31.2)
// CHECK:STDOUT: %.loc16_32: %.5 = converted %x.ref, %struct.loc16
// CHECK:STDOUT: %y: %.5 = bind_name y, %.loc16_32
// CHECK:STDOUT: %y.ref: %.5 = name_ref y, %y
// CHECK:STDOUT: %.loc17_10.1: i32 = struct_access %y.ref, element1
// CHECK:STDOUT: %.loc17_10.2: ref i32 = struct_access %return, element1
// CHECK:STDOUT: %.loc17_10.3: init i32 = initialize_from %.loc17_10.1 to %.loc17_10.2
// CHECK:STDOUT: %.loc17_10.4: f64 = struct_access %y.ref, element0
// CHECK:STDOUT: %.loc17_10.5: ref f64 = struct_access %return, element0
// CHECK:STDOUT: %.loc17_10.6: init f64 = initialize_from %.loc17_10.4 to %.loc17_10.5
// CHECK:STDOUT: %.loc17_10.7: init %.3 = struct_init (%.loc17_10.3, %.loc17_10.6) to %return
// CHECK:STDOUT: %.loc17_11: init %.3 = converted %y.ref, %.loc17_10.7
// CHECK:STDOUT: return %.loc17_11 to %return
// CHECK:STDOUT: }
// CHECK:STDOUT:
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