diff options
| author | Yuhang Zhao <zhaoyuhang@rankyee.com> | 2023-05-23 15:59:24 +0800 |
|---|---|---|
| committer | Yuhang Zhao <yuhangzhao@deepin.org> | 2023-05-29 05:57:08 +0000 |
| commit | 51becfbd234d9152726446af0e3718644fcf00df (patch) | |
| tree | 70671d635cc8fa166cea43f7fc3b3a988870e300 | |
| parent | 44cfdfa7c07a4f1aa1e5b6a384418556e6b3028e (diff) | |
CMake: use VS2019's flag for stronger inlining
Use the new "/Ob3" flag introduced in VS2019 to increase the inline
level, which may give better performance. For compilers older than
VS2019, we still use the traditional "/Ob2" inline level.
Official documentation:
https://learn.microsoft.com/en-us/cpp/build/reference/ob-inline-function-expansion?view=msvc-170
Change-Id: I34a50f27a151cb7c09f0085dd037a385c71848aa
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
| -rw-r--r-- | cmake/QtCompilerOptimization.cmake | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/cmake/QtCompilerOptimization.cmake b/cmake/QtCompilerOptimization.cmake index a093ed4dce..e1d363afab 100644 --- a/cmake/QtCompilerOptimization.cmake +++ b/cmake/QtCompilerOptimization.cmake @@ -92,10 +92,10 @@ endif() # Windows MSVC if(MSVC) - set(QT_CFLAGS_OPTIMIZE "-O2") + set(QT_CFLAGS_OPTIMIZE "-O2 -Ob3") # -Ob3 was introduced in Visual Studio 2019 version 16.0 set(QT_CFLAGS_OPTIMIZE_DEBUG "-Od") set(QT_CFLAGS_OPTIMIZE_SIZE "-O1") - set(QT_CFLAGS_OPTIMIZE_VALID_VALUES "/O2" "/O1" "/Od" "/Ob0" "/Ob1" "/Ob2" "/O0" "-O0") + set(QT_CFLAGS_OPTIMIZE_VALID_VALUES "/O2" "/O1" "/Od" "/Ob0" "/Ob1" "/Ob2" "/Ob3" "/O0" "-O0") if(CLANG) set(QT_CFLAGS_OPTIMIZE_FULL "/clang:-O3") |