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carbon-lang/toolchain/check/testdata/array/array_vs_tuple.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/array/array_vs_tuple.carbon
// TIP: To dump output, run:
// TIP: bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/check/testdata/array/array_vs_tuple.carbon
fn G() {
// These should have two different constant values.
var a: [i32; 3] = (1, 2, 3);
var b: (i32, i32, i32) = (1, 2, 3);
}
// CHECK:STDOUT: --- array_vs_tuple.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// 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: %Int32.type: type = fn_type @Int32 [template]
// CHECK:STDOUT: %Int32: %Int32.type = struct_value () [template]
// CHECK:STDOUT: %.2: i32 = int_literal 3 [template]
// CHECK:STDOUT: %.3: type = array_type %.2, i32 [template]
// CHECK:STDOUT: %.4: type = ptr_type %.3 [template]
// CHECK:STDOUT: %.5: i32 = int_literal 1 [template]
// CHECK:STDOUT: %.6: i32 = int_literal 2 [template]
// CHECK:STDOUT: %.7: type = tuple_type (i32, i32, i32) [template]
// CHECK:STDOUT: %.8: i32 = int_literal 0 [template]
// CHECK:STDOUT: %array: %.3 = tuple_value (%.5, %.6, %.2) [template]
// CHECK:STDOUT: %.9: type = tuple_type (type, type, type) [template]
// CHECK:STDOUT: %.10: type = ptr_type %.7 [template]
// CHECK:STDOUT: %tuple: %.7 = tuple_value (%.5, %.6, %.2) [template]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT: %Core: <namespace> = namespace file.%Core.import, [template] {
// CHECK:STDOUT: .Int32 = %import_ref
// 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: %Int32.type = import_ref Core//prelude/types, inst+4, loaded [template = constants.%Int32]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT: package: <namespace> = namespace [template] {
// CHECK:STDOUT: .Core = imports.%Core
// CHECK:STDOUT: .G = %G.decl
// CHECK:STDOUT: }
// CHECK:STDOUT: %Core.import = import Core
// CHECK:STDOUT: %G.decl: %G.type = fn_decl @G [template = constants.%G] {} {}
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @G() {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: %int.make_type_32.loc13: init type = call constants.%Int32() [template = i32]
// CHECK:STDOUT: %.loc13_16: i32 = int_literal 3 [template = constants.%.2]
// CHECK:STDOUT: %.loc13_11.1: type = value_of_initializer %int.make_type_32.loc13 [template = i32]
// CHECK:STDOUT: %.loc13_11.2: type = converted %int.make_type_32.loc13, %.loc13_11.1 [template = i32]
// CHECK:STDOUT: %.loc13_17: type = array_type %.loc13_16, i32 [template = constants.%.3]
// CHECK:STDOUT: %a.var: ref %.3 = var a
// CHECK:STDOUT: %a: ref %.3 = bind_name a, %a.var
// CHECK:STDOUT: %.loc13_22: i32 = int_literal 1 [template = constants.%.5]
// CHECK:STDOUT: %.loc13_25: i32 = int_literal 2 [template = constants.%.6]
// CHECK:STDOUT: %.loc13_28: i32 = int_literal 3 [template = constants.%.2]
// CHECK:STDOUT: %.loc13_29.1: %.7 = tuple_literal (%.loc13_22, %.loc13_25, %.loc13_28)
// CHECK:STDOUT: %.loc13_29.2: i32 = int_literal 0 [template = constants.%.8]
// CHECK:STDOUT: %.loc13_29.3: ref i32 = array_index %a.var, %.loc13_29.2
// CHECK:STDOUT: %.loc13_29.4: init i32 = initialize_from %.loc13_22 to %.loc13_29.3 [template = constants.%.5]
// CHECK:STDOUT: %.loc13_29.5: i32 = int_literal 1 [template = constants.%.5]
// CHECK:STDOUT: %.loc13_29.6: ref i32 = array_index %a.var, %.loc13_29.5
// CHECK:STDOUT: %.loc13_29.7: init i32 = initialize_from %.loc13_25 to %.loc13_29.6 [template = constants.%.6]
// CHECK:STDOUT: %.loc13_29.8: i32 = int_literal 2 [template = constants.%.6]
// CHECK:STDOUT: %.loc13_29.9: ref i32 = array_index %a.var, %.loc13_29.8
// CHECK:STDOUT: %.loc13_29.10: init i32 = initialize_from %.loc13_28 to %.loc13_29.9 [template = constants.%.2]
// CHECK:STDOUT: %.loc13_29.11: init %.3 = array_init (%.loc13_29.4, %.loc13_29.7, %.loc13_29.10) to %a.var [template = constants.%array]
// CHECK:STDOUT: %.loc13_30: init %.3 = converted %.loc13_29.1, %.loc13_29.11 [template = constants.%array]
// CHECK:STDOUT: assign %a.var, %.loc13_30
// CHECK:STDOUT: %int.make_type_32.loc14_11: init type = call constants.%Int32() [template = i32]
// CHECK:STDOUT: %int.make_type_32.loc14_16: init type = call constants.%Int32() [template = i32]
// CHECK:STDOUT: %int.make_type_32.loc14_21: init type = call constants.%Int32() [template = i32]
// CHECK:STDOUT: %.loc14_24.1: %.9 = tuple_literal (%int.make_type_32.loc14_11, %int.make_type_32.loc14_16, %int.make_type_32.loc14_21)
// CHECK:STDOUT: %.loc14_24.2: type = value_of_initializer %int.make_type_32.loc14_11 [template = i32]
// CHECK:STDOUT: %.loc14_24.3: type = converted %int.make_type_32.loc14_11, %.loc14_24.2 [template = i32]
// CHECK:STDOUT: %.loc14_24.4: type = value_of_initializer %int.make_type_32.loc14_16 [template = i32]
// CHECK:STDOUT: %.loc14_24.5: type = converted %int.make_type_32.loc14_16, %.loc14_24.4 [template = i32]
// CHECK:STDOUT: %.loc14_24.6: type = value_of_initializer %int.make_type_32.loc14_21 [template = i32]
// CHECK:STDOUT: %.loc14_24.7: type = converted %int.make_type_32.loc14_21, %.loc14_24.6 [template = i32]
// CHECK:STDOUT: %.loc14_24.8: type = converted %.loc14_24.1, constants.%.7 [template = constants.%.7]
// CHECK:STDOUT: %b.var: ref %.7 = var b
// CHECK:STDOUT: %b: ref %.7 = bind_name b, %b.var
// CHECK:STDOUT: %.loc14_29: i32 = int_literal 1 [template = constants.%.5]
// CHECK:STDOUT: %.loc14_32: i32 = int_literal 2 [template = constants.%.6]
// CHECK:STDOUT: %.loc14_35: i32 = int_literal 3 [template = constants.%.2]
// CHECK:STDOUT: %.loc14_36.1: %.7 = tuple_literal (%.loc14_29, %.loc14_32, %.loc14_35)
// CHECK:STDOUT: %.loc14_36.2: ref i32 = tuple_access %b.var, element0
// CHECK:STDOUT: %.loc14_36.3: init i32 = initialize_from %.loc14_29 to %.loc14_36.2 [template = constants.%.5]
// CHECK:STDOUT: %.loc14_36.4: ref i32 = tuple_access %b.var, element1
// CHECK:STDOUT: %.loc14_36.5: init i32 = initialize_from %.loc14_32 to %.loc14_36.4 [template = constants.%.6]
// CHECK:STDOUT: %.loc14_36.6: ref i32 = tuple_access %b.var, element2
// CHECK:STDOUT: %.loc14_36.7: init i32 = initialize_from %.loc14_35 to %.loc14_36.6 [template = constants.%.2]
// CHECK:STDOUT: %.loc14_36.8: init %.7 = tuple_init (%.loc14_36.3, %.loc14_36.5, %.loc14_36.7) to %b.var [template = constants.%tuple]
// CHECK:STDOUT: %.loc14_37: init %.7 = converted %.loc14_36.1, %.loc14_36.8 [template = constants.%tuple]
// CHECK:STDOUT: assign %b.var, %.loc14_37
// CHECK:STDOUT: return
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @Int32() -> type = "int.make_type_32";
// CHECK:STDOUT:
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