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https://github.com/carbon-language/carbon-lang.git
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Richard Smith
797b14eb8e
Don't import `ImplWitnessTable` into the `constants` block, because we generally don't put `Unique` constants there. This matches the handling of the other kinds of `Unique` constants. In order to keep the instruction visible in formatted SemIR, add it to the `imports` block instead. Also fix a bug in the instruction formatter that resulted in instructions in the `imports` block being omitted from the output if they were only referenced by earlier instructions in the `imports` block and by instructions in the `constants` block. This was already resulting in some referenced instructions being omitted from the output, but also occurred frequently for `impl_witness_table` instructions after this change because it is common for the only reference to those instructions to be from `impl_witness` instructions in the `constants` block.
67 lines
3.0 KiB
Plaintext
67 lines
3.0 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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// TIP: To test this file alone, run:
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// TIP: bazel test //toolchain/testing:file_test --test_arg=--file_tests=toolchain/check/testdata/impl/empty.carbon
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// TIP: To dump output, run:
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// TIP: bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/check/testdata/impl/empty.carbon
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interface Empty {
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}
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impl i32 as Empty {
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}
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// CHECK:STDOUT: --- empty.carbon
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// CHECK:STDOUT:
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// CHECK:STDOUT: constants {
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// CHECK:STDOUT: %Empty.type: type = facet_type <@Empty> [concrete]
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// CHECK:STDOUT: %Self: %Empty.type = bind_symbolic_name Self, 0 [symbolic]
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// CHECK:STDOUT: %int_32: Core.IntLiteral = int_value 32 [concrete]
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// CHECK:STDOUT: %Int.type: type = generic_class_type @Int [concrete]
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// CHECK:STDOUT: %Int.generic: %Int.type = struct_value () [concrete]
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// CHECK:STDOUT: %i32: type = class_type @Int, @Int(%int_32) [concrete]
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// CHECK:STDOUT: %Empty.impl_witness: <witness> = impl_witness file.%Empty.impl_witness_table [concrete]
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: imports {
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// CHECK:STDOUT: %Core: <namespace> = namespace file.%Core.import, [concrete] {
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// CHECK:STDOUT: .Int = %Core.Int
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// CHECK:STDOUT: import Core//prelude
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// CHECK:STDOUT: import Core//prelude/...
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// CHECK:STDOUT: }
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// CHECK:STDOUT: %Core.Int: %Int.type = import_ref Core//prelude/types/int, Int, loaded [concrete = constants.%Int.generic]
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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 [concrete] {
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// CHECK:STDOUT: .Core = imports.%Core
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// CHECK:STDOUT: .Empty = %Empty.decl
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// CHECK:STDOUT: }
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// CHECK:STDOUT: %Core.import = import Core
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// CHECK:STDOUT: %Empty.decl: type = interface_decl @Empty [concrete = constants.%Empty.type] {} {}
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// CHECK:STDOUT: impl_decl @impl [concrete] {} {
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// CHECK:STDOUT: %int_32: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
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// CHECK:STDOUT: %i32: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
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// CHECK:STDOUT: %Empty.ref: type = name_ref Empty, file.%Empty.decl [concrete = constants.%Empty.type]
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// CHECK:STDOUT: }
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// CHECK:STDOUT: %Empty.impl_witness_table = impl_witness_table (), @impl [concrete]
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// CHECK:STDOUT: %Empty.impl_witness: <witness> = impl_witness %Empty.impl_witness_table [concrete = constants.%Empty.impl_witness]
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: interface @Empty {
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// CHECK:STDOUT: %Self: %Empty.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self]
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// CHECK:STDOUT:
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// CHECK:STDOUT: !members:
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// CHECK:STDOUT: .Self = %Self
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// CHECK:STDOUT: witness = ()
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: impl @impl: %i32 as %Empty.ref {
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// CHECK:STDOUT: !members:
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// CHECK:STDOUT: witness = file.%Empty.impl_witness
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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