mirror of
https://github.com/carbon-language/carbon-lang.git
synced 2026-09-24 22:02:23 +01:00
Jon Ross-Perkins
91f0c23124
Building on #3636 which handles the general import case, add special casing for namespaces. Namespaces can be combined cross-IR, so it's a little more complex. The implementation adds import_id to the Namespace instruction as a reference to find the original using the normal structure. This is achieved by moving the name_id to NameScope to free up space. --- I considered a few alternatives... I considered adding import_id to NameScope, but: 1. It's more consistent with things such as Function or Class that provide name_id on the info object rather than the instruction. 2. I thought it more likely that there would be more NameScope cases that might want a name_id rather than the import_id, since ImportRef will typically be used. I considered putting the import source (cross-ref IR id + inst id) on the NameScope versus a separate ImportRef, which seems like the strongest argument towards the NameScope approach because it removes an instruction. That just felt inconsistent though, and the overhead of instruction-per-imported-namespace should be low (theoretically few namespaces should be used). Plus I feel a bit odd adding two generally-unused ids to NameScope. A specialized Namespace structure could also have been created to store the import_id, but that would add an indirection to the NameScope.
74 lines
3.8 KiB
Plaintext
74 lines
3.8 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: --- function_param.carbon
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// CHECK:STDOUT:
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// CHECK:STDOUT: constants {
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// CHECK:STDOUT: %.1: i32 = int_literal 3 [template]
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// CHECK:STDOUT: %.2: type = array_type %.1, i32 [template]
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// CHECK:STDOUT: %.3: type = ptr_type [i32; 3] [template]
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// CHECK:STDOUT: %.4: i32 = int_literal 1 [template]
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// CHECK:STDOUT: %.5: i32 = int_literal 2 [template]
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// CHECK:STDOUT: %.6: type = tuple_type (i32, i32, i32) [template]
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// CHECK:STDOUT: %.7: i32 = int_literal 0 [template]
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// CHECK:STDOUT: %.8: i32 = int_literal 1 [template]
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// CHECK:STDOUT: %.9: i32 = int_literal 2 [template]
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// CHECK:STDOUT: %.10: [i32; 3] = tuple_value (%.4, %.5, %.1) [template]
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: file {
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// CHECK:STDOUT: package: <namespace> = namespace {.F = %F, .G = %G} [template]
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// CHECK:STDOUT: %F: <function> = fn_decl @F [template]
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// CHECK:STDOUT: %G: <function> = fn_decl @G [template]
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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: %arr.ref: [i32; 3] = name_ref arr, %arr
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// CHECK:STDOUT: %i.ref: i32 = name_ref i, %i
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// CHECK:STDOUT: %.loc8_15.1: ref [i32; 3] = value_as_ref %arr.ref
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// CHECK:STDOUT: %.loc8_15.2: ref i32 = array_index %.loc8_15.1, %i.ref
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// CHECK:STDOUT: %.loc8_15.3: i32 = bind_value %.loc8_15.2
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// CHECK:STDOUT: return %.loc8_15.3
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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: %F.ref: <function> = name_ref F, file.%F [template = file.%F]
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// CHECK:STDOUT: %.loc12_13: i32 = int_literal 1 [template = constants.%.4]
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// CHECK:STDOUT: %.loc12_16: i32 = int_literal 2 [template = constants.%.5]
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// CHECK:STDOUT: %.loc12_19: i32 = int_literal 3 [template = constants.%.1]
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// CHECK:STDOUT: %.loc12_20.1: (i32, i32, i32) = tuple_literal (%.loc12_13, %.loc12_16, %.loc12_19)
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// CHECK:STDOUT: %.loc12_23: i32 = int_literal 1 [template = constants.%.4]
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// CHECK:STDOUT: %.loc12_20.2: ref [i32; 3] = temporary_storage
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// CHECK:STDOUT: %.loc12_20.3: i32 = int_literal 0 [template = constants.%.7]
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// CHECK:STDOUT: %.loc12_20.4: ref i32 = array_index %.loc12_20.2, %.loc12_20.3
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// CHECK:STDOUT: %.loc12_20.5: init i32 = initialize_from %.loc12_13 to %.loc12_20.4 [template = constants.%.4]
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// CHECK:STDOUT: %.loc12_20.6: i32 = int_literal 1 [template = constants.%.8]
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// CHECK:STDOUT: %.loc12_20.7: ref i32 = array_index %.loc12_20.2, %.loc12_20.6
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// CHECK:STDOUT: %.loc12_20.8: init i32 = initialize_from %.loc12_16 to %.loc12_20.7 [template = constants.%.5]
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// CHECK:STDOUT: %.loc12_20.9: i32 = int_literal 2 [template = constants.%.9]
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// CHECK:STDOUT: %.loc12_20.10: ref i32 = array_index %.loc12_20.2, %.loc12_20.9
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// CHECK:STDOUT: %.loc12_20.11: init i32 = initialize_from %.loc12_19 to %.loc12_20.10 [template = constants.%.1]
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// CHECK:STDOUT: %.loc12_20.12: init [i32; 3] = array_init (%.loc12_20.5, %.loc12_20.8, %.loc12_20.11) to %.loc12_20.2 [template = constants.%.10]
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// CHECK:STDOUT: %.loc12_20.13: init [i32; 3] = converted %.loc12_20.1, %.loc12_20.12 [template = constants.%.10]
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// CHECK:STDOUT: %.loc12_20.14: ref [i32; 3] = temporary %.loc12_20.2, %.loc12_20.13
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// CHECK:STDOUT: %.loc12_20.15: [i32; 3] = bind_value %.loc12_20.14
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// CHECK:STDOUT: %.loc12_11.1: init i32 = call %F.ref(%.loc12_20.15, %.loc12_23)
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// CHECK:STDOUT: %.loc12_25: i32 = value_of_initializer %.loc12_11.1
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// CHECK:STDOUT: %.loc12_11.2: i32 = converted %.loc12_11.1, %.loc12_25
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// CHECK:STDOUT: return %.loc12_11.2
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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