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carbon-lang/toolchain/check/testdata/index/array_element_access.carbon
T
Richard Smith 87ecb34f6b Constant evaluation support for initializing expressions. (#3624)
The constant value we associate with an initializing representation is
the object representation that the initializing expression will store to
its destination.

Also include the type in the profile of an instruction. This is now
necessary for array values, which are represented as tuple_value
instructions with array type, to avoid instructions with different types
being merged by constant canonicalization.
2024-01-19 23:28:53 +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
var a: [i32; 2] = (12, 24);
var b: i32 = 1;
var c: i32 = a[0];
var d: i32 = a[b];
// CHECK:STDOUT: --- array_element_access.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: %.1: i32 = int_literal 2 [template]
// CHECK:STDOUT: %.2: type = array_type %.1, i32 [template]
// CHECK:STDOUT: %.3: type = ptr_type [i32; 2] [template]
// CHECK:STDOUT: %.4: i32 = int_literal 12 [template]
// CHECK:STDOUT: %.5: i32 = int_literal 24 [template]
// CHECK:STDOUT: %.6: type = tuple_type (i32, i32) [template]
// CHECK:STDOUT: %.7: i32 = int_literal 0 [template]
// CHECK:STDOUT: %.8: i32 = int_literal 1 [template]
// CHECK:STDOUT: %.9: [i32; 2] = tuple_value (%.4, %.5) [template]
// CHECK:STDOUT: %.10: i32 = int_literal 1 [template]
// CHECK:STDOUT: %.11: i32 = int_literal 0 [template]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT: package: <namespace> = namespace package, {.a = %a, .b = %b, .c = %c, .d = %d} [template]
// CHECK:STDOUT: %.loc7_14: i32 = int_literal 2 [template = constants.%.1]
// CHECK:STDOUT: %.loc7_15: type = array_type %.loc7_14, i32 [template = constants.%.2]
// CHECK:STDOUT: %a.var: ref [i32; 2] = var a
// CHECK:STDOUT: %a: ref [i32; 2] = bind_name a, %a.var
// CHECK:STDOUT: %.loc7_20: i32 = int_literal 12 [template = constants.%.4]
// CHECK:STDOUT: %.loc7_24: i32 = int_literal 24 [template = constants.%.5]
// CHECK:STDOUT: %.loc7_26.1: (i32, i32) = tuple_literal (%.loc7_20, %.loc7_24)
// CHECK:STDOUT: %.loc7_26.2: i32 = int_literal 0 [template = constants.%.7]
// CHECK:STDOUT: %.loc7_26.3: ref i32 = array_index %a.var, %.loc7_26.2
// CHECK:STDOUT: %.loc7_26.4: init i32 = initialize_from %.loc7_20 to %.loc7_26.3 [template = constants.%.4]
// CHECK:STDOUT: %.loc7_26.5: i32 = int_literal 1 [template = constants.%.8]
// CHECK:STDOUT: %.loc7_26.6: ref i32 = array_index %a.var, %.loc7_26.5
// CHECK:STDOUT: %.loc7_26.7: init i32 = initialize_from %.loc7_24 to %.loc7_26.6 [template = constants.%.5]
// CHECK:STDOUT: %.loc7_26.8: init [i32; 2] = array_init (%.loc7_26.4, %.loc7_26.7) to %a.var [template = constants.%.9]
// CHECK:STDOUT: %.loc7_26.9: init [i32; 2] = converted %.loc7_26.1, %.loc7_26.8 [template = constants.%.9]
// CHECK:STDOUT: assign %a.var, %.loc7_26.9
// CHECK:STDOUT: %b.var: ref i32 = var b
// CHECK:STDOUT: %b: ref i32 = bind_name b, %b.var
// CHECK:STDOUT: %.loc8: i32 = int_literal 1 [template = constants.%.10]
// CHECK:STDOUT: assign %b.var, %.loc8
// CHECK:STDOUT: %c.var: ref i32 = var c
// CHECK:STDOUT: %c: ref i32 = bind_name c, %c.var
// CHECK:STDOUT: %a.ref.loc9: ref [i32; 2] = name_ref a, %a
// CHECK:STDOUT: %.loc9_16: i32 = int_literal 0 [template = constants.%.11]
// CHECK:STDOUT: %.loc9_17.1: ref i32 = array_index %a.ref.loc9, %.loc9_16
// CHECK:STDOUT: %.loc9_17.2: i32 = bind_value %.loc9_17.1
// CHECK:STDOUT: assign %c.var, %.loc9_17.2
// CHECK:STDOUT: %d.var: ref i32 = var d
// CHECK:STDOUT: %d: ref i32 = bind_name d, %d.var
// CHECK:STDOUT: %a.ref.loc10: ref [i32; 2] = name_ref a, %a
// CHECK:STDOUT: %b.ref: ref i32 = name_ref b, %b
// CHECK:STDOUT: %.loc10_16: i32 = bind_value %b.ref
// CHECK:STDOUT: %.loc10_17.1: ref i32 = array_index %a.ref.loc10, %.loc10_16
// CHECK:STDOUT: %.loc10_17.2: i32 = bind_value %.loc10_17.1
// CHECK:STDOUT: assign %d.var, %.loc10_17.2
// CHECK:STDOUT: }
// CHECK:STDOUT: