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https://github.com/carbon-language/carbon-lang.git
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Richard Smith
e81d171226
Instead of modeling array initialization as a thin wrapper around tuple initialization, handle it like a function call, with a return slot as part of its input. This better matches how initialization via a call to `ImplicitAs::Convert` will eventually work, and in particular lets us do in-place initialization of arrays rather than always creating a temporary.
58 lines
2.8 KiB
Plaintext
58 lines
2.8 KiB
Plaintext
// Part of the Carbon Language project, under the Apache License v2.0 with LLVM
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// Exceptions. See /LICENSE for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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// AUTOUPDATE
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fn F(arr: [i32; 3], i: i32) -> i32 {
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return arr[i];
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}
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fn G() -> i32 {
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return F((1, 2, 3), 1);
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}
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// CHECK:STDOUT: file "function_param.carbon" {
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// CHECK:STDOUT: %.loc7 = fn_decl @F
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// CHECK:STDOUT: %.loc11 = fn_decl @G
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: fn @F(%arr: [i32; 3], %i: i32) -> i32 {
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// CHECK:STDOUT: !entry:
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// CHECK:STDOUT: %.loc8: i32 = array_index %arr, %i
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// CHECK:STDOUT: return %.loc8
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: fn @G() -> i32 {
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// CHECK:STDOUT: !entry:
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// CHECK:STDOUT: %.loc12_13.1: i32 = int_literal 1
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// CHECK:STDOUT: %.loc12_13.2: i32 = stub_reference %.loc12_13.1
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// CHECK:STDOUT: %.loc12_16.1: i32 = int_literal 2
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// CHECK:STDOUT: %.loc12_16.2: i32 = stub_reference %.loc12_16.1
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// CHECK:STDOUT: %.loc12_19.1: i32 = int_literal 3
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// CHECK:STDOUT: %.loc12_19.2: i32 = stub_reference %.loc12_19.1
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// CHECK:STDOUT: %.loc12_20.1: type = tuple_type (i32, i32, i32)
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// CHECK:STDOUT: %.loc12_20.2: (i32, i32, i32) = tuple_literal (%.loc12_13.2, %.loc12_16.2, %.loc12_19.2)
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// CHECK:STDOUT: %.loc12_20.3: (i32, i32, i32) = stub_reference %.loc12_20.2
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// CHECK:STDOUT: %.loc12_23.1: i32 = int_literal 1
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// CHECK:STDOUT: %.loc12_23.2: i32 = stub_reference %.loc12_23.1
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// CHECK:STDOUT: %.loc12_20.4: ref [i32; 3] = temporary_storage
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// CHECK:STDOUT: %.loc12_20.5: i32 = int_literal 0
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// CHECK:STDOUT: %.loc12_20.6: ref i32 = array_index %.loc12_20.4, %.loc12_20.5
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// CHECK:STDOUT: %.loc12_20.7: init i32 = initialize_from %.loc12_13.2 to %.loc12_20.6
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// CHECK:STDOUT: %.loc12_20.8: i32 = int_literal 1
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// CHECK:STDOUT: %.loc12_20.9: ref i32 = array_index %.loc12_20.4, %.loc12_20.8
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// CHECK:STDOUT: %.loc12_20.10: init i32 = initialize_from %.loc12_16.2 to %.loc12_20.9
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// CHECK:STDOUT: %.loc12_20.11: i32 = int_literal 2
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// CHECK:STDOUT: %.loc12_20.12: ref i32 = array_index %.loc12_20.4, %.loc12_20.11
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// CHECK:STDOUT: %.loc12_20.13: init i32 = initialize_from %.loc12_19.2 to %.loc12_20.12
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// CHECK:STDOUT: %.loc12_20.14: init [i32; 3] = array_init %.loc12_20.2, (%.loc12_20.7, %.loc12_20.10, %.loc12_20.13) to %.loc12_20.4
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// CHECK:STDOUT: %.loc12_20.15: ref [i32; 3] = temporary %.loc12_20.4, %.loc12_20.14
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// CHECK:STDOUT: %.loc12_20.16: [i32; 3] = bind_value %.loc12_20.15
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// CHECK:STDOUT: %.loc12_11.1: init i32 = call @F(%.loc12_20.16, %.loc12_23.2)
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// CHECK:STDOUT: %.loc12_11.2: ref i32 = temporary_storage
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// CHECK:STDOUT: %.loc12_11.3: ref i32 = temporary %.loc12_11.2, %.loc12_11.1
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// CHECK:STDOUT: %.loc12_11.4: i32 = bind_value %.loc12_11.3
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// CHECK:STDOUT: return %.loc12_11.4
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// CHECK:STDOUT: }
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