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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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2
shared/source/helpers/l3_range.h
View File

@@ -17,7 +17,7 @@
namespace NEO {
static const size_t maxFlushSubrangeCount = 126;
inline const size_t maxFlushSubrangeCount = 126;
struct L3Range {
static constexpr uint64_t minAlignment = MemoryConstants::pageSize;
static constexpr uint64_t minAlignmentMask = minAlignment - 1ULL;

10
shared/source/helpers/pipeline_select_helper.h
View File

@@ -1,5 +1,5 @@
/*
* Copyright (C) 2018-2021 Intel Corporation
* Copyright (C) 2018-2022 Intel Corporation
*
* SPDX-License-Identifier: MIT
*
@@ -9,8 +9,8 @@
#include <cstdint>
namespace NEO {
const uint32_t pipelineSelectEnablePipelineSelectMaskBits = 0x3;
const uint32_t pipelineSelectMediaSamplerDopClockGateMaskBits = 0x10;
const uint32_t pipelineSelectMediaSamplerPowerClockGateMaskBits = 0x40;
const uint32_t pipelineSelectSystolicModeEnableMaskBits = 0x80;
constexpr uint32_t pipelineSelectEnablePipelineSelectMaskBits = 0x3;
constexpr uint32_t pipelineSelectMediaSamplerDopClockGateMaskBits = 0x10;
constexpr uint32_t pipelineSelectMediaSamplerPowerClockGateMaskBits = 0x40;
constexpr uint32_t pipelineSelectSystolicModeEnableMaskBits = 0x80;
} // namespace NEO

6
shared/source/helpers/ptr_math.h
View File

@@ -1,5 +1,5 @@
/*
* Copyright (C) 2018-2021 Intel Corporation
* Copyright (C) 2018-2022 Intel Corporation
*
* SPDX-License-Identifier: MIT
*
@@ -9,12 +9,12 @@
#include <cstddef>
#include <cstdint>
static const int ptrGarbageContent[16] = {
inline const int ptrGarbageContent[16] = {
0x0131, 0x133, 0xA, 0xEF,
0x0131, 0x133, 0xA, 0xEF,
0x0131, 0x133, 0xA, 0xEF,
0x0131, 0x133, 0xA, 0xEF};
static const auto ptrGarbage = (void *)ptrGarbageContent;
inline const auto ptrGarbage = (void *)ptrGarbageContent;
template <typename T>
inline T ptrOffset(T ptrBefore, size_t offset) {