mirror of
https://github.com/carbon-language/carbon-lang.git
synced 2026-09-24 21:50:14 +01:00
Richard Smith
5c8fa6ad5c
Switch from recursing into non-canonical instruction fields to separately canonicalizing those fields. This means we now form canonical `InstBlockId`s, `TypeBlockId`s, `IntId`s, `FloatId`s, and `BindNameId`s at least in the cases when they're referenced by a constant instruction. This reduces the overall runtime for @chandlerc's 10MLoC example by 27.5% on my machine.
51 lines
1.7 KiB
C++
51 lines
1.7 KiB
C++
// 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
|
|
|
|
#include "toolchain/sem_ir/name.h"
|
|
|
|
#include "llvm/ADT/StringSwitch.h"
|
|
|
|
namespace Carbon::SemIR {
|
|
|
|
// Get the spelling to use for a special name.
|
|
static auto GetSpecialName(NameId name_id, bool for_ir) -> llvm::StringRef {
|
|
switch (name_id.index) {
|
|
case NameId::Invalid.index:
|
|
return for_ir ? "" : "<invalid>";
|
|
case NameId::SelfValue.index:
|
|
return "self";
|
|
case NameId::SelfType.index:
|
|
return "Self";
|
|
case NameId::ReturnSlot.index:
|
|
return for_ir ? "return" : "<return slot>";
|
|
case NameId::PackageNamespace.index:
|
|
return "package";
|
|
case NameId::Base.index:
|
|
return "base";
|
|
default:
|
|
CARBON_FATAL() << "Unknown special name";
|
|
}
|
|
}
|
|
|
|
auto NameStoreWrapper::GetFormatted(NameId name_id) const -> llvm::StringRef {
|
|
// If the name is an identifier name with a keyword spelling, format it with
|
|
// an `r#` prefix. Format any other identifier name as just the identifier.
|
|
if (auto string_name = GetAsStringIfIdentifier(name_id)) {
|
|
return llvm::StringSwitch<llvm::StringRef>(*string_name)
|
|
#define CARBON_KEYWORD_TOKEN(Name, Spelling) .Case(Spelling, "r#" Spelling)
|
|
#include "toolchain/lex/token_kind.def"
|
|
.Default(*string_name);
|
|
}
|
|
return GetSpecialName(name_id, /*for_ir=*/false);
|
|
}
|
|
|
|
auto NameStoreWrapper::GetIRBaseName(NameId name_id) const -> llvm::StringRef {
|
|
if (auto string_name = GetAsStringIfIdentifier(name_id)) {
|
|
return *string_name;
|
|
}
|
|
return GetSpecialName(name_id, /*for_ir=*/true);
|
|
}
|
|
|
|
} // namespace Carbon::SemIR
|