mirror of
https://github.com/carbon-language/carbon-lang.git
synced 2026-09-24 21:10:12 +01:00
Richard Smith
1b335402d1
Move completeness check to the point where the function is defined or first called. This means we also defer deciding whether the function has a return slot until that point. Instead of storing a return slot per function, store the location of the return storage, which may or may not be used, and compute and store a separate flag saying whether to use it at the point of first use or definition. This is the final piece in supporting simple `Make` functions in classes as a replacement for constructors.
45 lines
1.7 KiB
Plaintext
45 lines
1.7 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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class Class;
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fn F(p: Class*) -> Class* { return p; }
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// CHECK:STDOUT: --- forward_declared.carbon
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// CHECK:STDOUT:
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// CHECK:STDOUT: constants {
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// CHECK:STDOUT: %Class: type = class_type @Class [template]
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// CHECK:STDOUT: %.1: type = ptr_type Class [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 [template] {
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// CHECK:STDOUT: .Core = %Core
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// CHECK:STDOUT: .Class = %Class.decl
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// CHECK:STDOUT: .F = %F
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// CHECK:STDOUT: }
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// CHECK:STDOUT: %Core: <namespace> = namespace [template] {}
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// CHECK:STDOUT: %Class.decl: type = class_decl @Class [template = constants.%Class] {}
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// CHECK:STDOUT: %F: <function> = fn_decl @F [template] {
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// CHECK:STDOUT: %Class.ref.loc9_9: type = name_ref Class, %Class.decl [template = constants.%Class]
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// CHECK:STDOUT: %.loc9_14: type = ptr_type Class [template = constants.%.1]
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// CHECK:STDOUT: %p.loc9_6.1: Class* = param p
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// CHECK:STDOUT: @F.%p: Class* = bind_name p, %p.loc9_6.1
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// CHECK:STDOUT: %Class.ref.loc9_20: type = name_ref Class, %Class.decl [template = constants.%Class]
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// CHECK:STDOUT: %.loc9_25: type = ptr_type Class [template = constants.%.1]
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// CHECK:STDOUT: @F.%return: ref Class* = var <return slot>
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// CHECK:STDOUT: }
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: class @Class;
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// CHECK:STDOUT:
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// CHECK:STDOUT: fn @F(%p: Class*) -> Class* {
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// CHECK:STDOUT: !entry:
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// CHECK:STDOUT: %p.ref: Class* = name_ref p, %p
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// CHECK:STDOUT: return %p.ref
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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