Returned using find_host_package for PythonInterp 3 instead of find_pachage.

SPV: Change the key of extBuiltinMap to std::string

Fix precision propagation around shifts

Fixes #2541

I changed this logic here: https://github.com/KhronosGroup/glslang/pull/2526/commits/05798c17fb17d339d66e064a407e75ceae4c0316
It was originally fixed here: https://github.com/KhronosGroup/glslang/commit/967fa92d14acea305267574faf63ebe753de98c4

Using const char* is not a good choice. We assume strings are always
from spv::E_SPV_XXX definitions. However, it is not the case. We can
store the name strings of extended intruction set in local variables.

Replace log2 and exp2 math func.

Require fixed workgroup size declaration

Fix 2479.

Fixed msvc 2019 nmake noexcept build.

By default cmake generates cxx_flags with /EHsc parameter.
I updated CMAKE_CXX_FLAGS string and removed /EHsc, also I added compile defenitions _HAS_EXCEPTIONS=0, it is mandatory for noexcept build with MSVC STL implementation.
Output files became smaller.

How to reproduce:

Visual Studio 2019 x64 command port

mkdir build-msvc2019
cd build-msvc2019
cmake -G"NMake Makefiles" -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_LIBDIR=install ..
nmake

CXX FLAGS BEFORE:

-- CMAKE_C_FLAGS:   /DWIN32 /D_WINDOWS /W3
-- CMAKE_CXX_FLAGS: /DWIN32 /D_WINDOWS /W3 /GR- /EHsc
-- CMAKE_CXX_FLAGS_DEBUG:   /MDd /Zi /Ob0 /Od /RTC1
-- CMAKE_CXX_FLAGS_RELEASE: /MD /O2 /Ob2 /DNDEBUG
-- ENABLE_RTTI:       OFF
-- ENABLE_EXCEPTIONS: OFF

OUTPUT SIZE BEFORE:

Build folder size: 61,8 MB (64 808 580 bytes)

GLSLANG SIZE BEFORE:

glslang.lib 22,7 MB (23 887 150 bytes)

CXX FLAGS AFTER:

-- CMAKE_C_FLAGS:   /DWIN32 /D_WINDOWS /W3
-- CMAKE_CXX_FLAGS: /DWIN32 /D_WINDOWS /W3 /GR-
-- CMAKE_CXX_FLAGS_DEBUG:   /MDd /Zi /Ob0 /Od /RTC1
-- CMAKE_CXX_FLAGS_RELEASE: /MD /O2 /Ob2 /DNDEBUG
-- ENABLE_RTTI:       OFF
-- ENABLE_EXCEPTIONS: OFF

OUTPUT SIZE AFTER:

Build folder size: 58,4 MB (61 331 179 bytes)

GLSLANG SIZE AFTER:

glslang.lib 21,6 MB (22 655 252 bytes)

Fixed cmake generation warning for regeneration project build files.

prevent some presicion issue.

reference link:
https://www.cplusplus.com/reference/cmath/Signed-off-by: ZhiqianXia <xzq0528@outlook.com>

Cannot specify atomic counter with location.

Fix warning in build

Update CHANGES.md to 11.2.0 to sync with current tagging.

glslang/MachineIndependent/SymbolTable.h:892:41: error: comparison of integers of
different signs: 'int' and 'const uint32_t' (aka 'const unsigned int') [-Werror,-Wsign-compare]
            uint64_t level = currentLevel() > MaxLevelInUniqueID ? MaxLevelInUniqueID : currentLevel();
                             ~~~~~~~~~~~~~~ ^ ~~~~~~~~~~~~~~~~~~
1 error generated.

[BEFORE]:

% cmake ..
CMake Warning (dev) at CMakeLists.txt:35 (project):
  Policy CMP0048 is not set: project() command manages VERSION variables.
  Run "cmake --help-policy CMP0048" for policy details.  Use the cmake_policy
  command to set the policy and suppress this warning.

  The following variable(s) would be set to empty:

    CMAKE_PROJECT_VERSION
    CMAKE_PROJECT_VERSION_MAJOR
    CMAKE_PROJECT_VERSION_MINOR
    CMAKE_PROJECT_VERSION_PATCH
This warning is for project developers.  Use -Wno-dev to suppress it.

-- No build type selected, default to Debug
-- Found PythonInterp: /usr/local/bin/python3 (found version "3.9")
-- Found PythonInterp: /usr/local/bin/python3 (found suitable version "3.9", minimum required is "3")
-- optimizer enabled
-- Google Mock found - building tests
-- Configuring done

[AFTER]:

% cmake ..
-- No build type selected, default to Debug
-- Google Mock was not found - tests based on that will not build
-- Configuring done
-- Generating done

Update CHANGES for 11.1.0

Pass environment through PreprocessDeferred

Fix issue for new unique id system.

Fix issue for new unique id system. Add level bits to help verifying symbols and split symbol tables.
For intermediates rebuilding, now need manually amending level bits for redeclaring built-ins.

Update spirv-tools and spirv-header known good.

This is being done to allow Vulkan validation layers to pick up
the new differentiated error code support in spirv-tools for
GPU-AV.

Merge pull request #2526 from proydakov/regression-python3-is-required-even-without-using-SPIRV-Tools

Fixed issues 2496. Used option 4: parse_version.cmake to avoid python3 usage.

https://github.com/KhronosGroup/glslang/issues/2496

Signed-off-by: ZhiqianXia <xzq0528@outlook.com>

Signed-off-by: ZhiqianXia <xzq0528@outlook.com>

Signed-off-by: ZhiqianXia <xzq0528@outlook.com>

Remove useless semicolon

The extra semicolon causes a build failure if warnings are turned up high, and
warnings-as-errors is on. (-Werror=extra-semi)

callGraph.push_front -> emplace_front to fix UBSAN

Add support for GL_EXT_shared_memory_block

UBSAN rightly complains on `push_front` here:

    glslang/MachineIndependent/localintermediate.h:100:8: runtime error: load of value 160, which is not a valid value for type 'bool'
    #0 in glslang::TCall::TCall(glslang::TCall&&) glslang/MachineIndependent/localintermediate.h:100
    #1 in void __gnu_cxx::new_allocator<std::_List_node<glslang::TCall> >::construct<glslang::TCall, glslang::TCall>(glslang::TCall*, glslang::TCall&&) /usr/include/c++/10/ext/new_allocator.h:150
    #2 in void std::allocator_traits<std::allocator<std::_List_node<glslang::TCall> > >::construct<glslang::TCall, glslang::TCall>(std::allocator<std::_List_node<glslang::TCall> >&, glslang::TCall*, glslang::TCall&&) /usr/include/c++/10/bits/alloc_traits.h:512
    #3 in std::_List_node<glslang::TCall>* std::__cxx11::list<glslang::TCall, std::allocator<glslang::TCall> >::_M_create_node<glslang::TCall>(glslang::TCall&&) (...)
    #4 in void std::__cxx11::list<glslang::TCall, std::allocator<glslang::TCall> >::_M_insert<glslang::TCall>(std::_List_iterator<glslang::TCall>, glslang::TCall&&) /usr/include/c++/10/bits/stl_list.h:1911
    #5 in std::__cxx11::list<glslang::TCall, std::allocator<glslang::TCall> >::push_front(glslang::TCall&&) /usr/include/c++/10/bits/stl_list.h:1167
    #6 in glslang::TIntermediate::addToCallGraph(TInfoSink&, std::__cxx11::basic_string<char, std::char_traits<char>, glslang::pool_allocator<char> > const&, std::__cxx11::basic_string<char, std::char_traits<char>, glslang::pool_allocator<char> > const&) glslang/MachineIndependent/Intermediate.cpp:2860

What happens here:

1. TCall's bool fields are not initialized on construction.
2. `push_front` move the `TCall` passed into it.
3. The move constructor copies unitialized bool, which may have an
   out-of-range value.

What this fix does:

Calls `emplace_back` to ensure no copy/move constructor is called.

Fixes #2222
Refs #2112