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Optimize binaries' size by adjusting linkage of constants in headers

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When header is included for the first time in translation unit,
then preprocessor simply copy-pastes its content. If we define a
constant in a header file and this constant has internal linkage
then each and every translation unit, which includes this header
will have its own copy of this constant.

C++17 introduces inline variables, which are meant to allow creation
of variables in header files, which do not cause multiple instances.

The inline variable has a single instance when:
- constexpr is used without static (constexpr implicitly implies inline)
- inline is used without static
- inline const is used without static (const does not imply internal linkage
when used with inline)

Signed-off-by: Patryk Wrobel <patryk.wrobel@intel.com>
This commit is contained in:
Patryk Wrobel
2022-08-26 12:39:52 +00:00
committed by Compute-Runtime-Automation
parent ffe8c75291
commit c0342a0ab5
39 changed files with 426 additions and 425 deletions
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4
shared/source/device_binary_format/yaml/yaml_parser.h
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@@ -140,7 +140,7 @@ constexpr const char *consumeStringLiteral(ConstStringRef wholeText, const char
using TokenId = uint32_t;
static constexpr TokenId invalidTokenId = std::numeric_limits<TokenId>::max();
constexpr TokenId invalidTokenId = std::numeric_limits<TokenId>::max();
struct Token {
enum Type : uint8_t { Identifier,
@@ -280,7 +280,7 @@ constexpr ConstStringRef inlineCollectionYamlErrorMsg = "NEO::Yaml : Inline coll
bool tokenize(ConstStringRef text, LinesCache &outLines, TokensCache &outTokens, std::string &outErrReason, std::string &outWarning);
using NodeId = uint32_t;
static constexpr NodeId invalidNodeID = std::numeric_limits<NodeId>::max();
constexpr NodeId invalidNodeID = std::numeric_limits<NodeId>::max();
struct alignas(32) Node {
TokenId key = invalidTokenId;