diff options
| author | Yuhang Zhao <2546789017@qq.com> | 2020-11-03 11:57:55 +0800 |
|---|---|---|
| committer | Yuhang Zhao <2546789017@qq.com> | 2020-11-12 03:51:04 +0800 |
| commit | f27f9e7bd3d180fed533bda3be812707ed38c6c0 (patch) | |
| tree | ae3deac3a3dd2f2c38238126abbe7cf48e8ee44b /mkspecs | |
| parent | d8bd8308f8a0139711ea7d801eeae4ab2228c528 (diff) | |
MSVC: enable identical COMDAT folding for release builds
According to Microsoft's docs, /OPT:ICF is enabled by the
linker by default unless /OPT:NOICF or /DEBUG is specified.
If we are in RelWithDebInfo mode, /DEBUG is passed to the
linker to generate debug symbols, however, it caused the
identical COMDAT folding be disabled. We now pass /OPT:ICF
to the linker explicitly to prevent this.
[1] https://docs.microsoft.com/en-us/cpp/build/reference/opt-optimizations?view=msvc-160
Change-Id: I02099edb81034ace7bb19f1164d57829e3979a5f
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
Diffstat (limited to 'mkspecs')
| -rw-r--r-- | mkspecs/common/msvc-desktop.conf | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/mkspecs/common/msvc-desktop.conf b/mkspecs/common/msvc-desktop.conf index 33b4dc70c6..68980ff5cf 100644 --- a/mkspecs/common/msvc-desktop.conf +++ b/mkspecs/common/msvc-desktop.conf @@ -85,8 +85,8 @@ QMAKE_RUN_CXX_IMP_BATCH = $(CXX) -c $(CXXFLAGS) $(INCPATH) -Fo$@ @<< QMAKE_LINK = link QMAKE_LFLAGS = /NOLOGO /DYNAMICBASE /NXCOMPAT -QMAKE_LFLAGS_RELEASE = /OPT:REF /INCREMENTAL:NO -QMAKE_LFLAGS_RELEASE_WITH_DEBUGINFO = /DEBUG /OPT:REF /INCREMENTAL:NO +QMAKE_LFLAGS_RELEASE = /OPT:REF /OPT:ICF /INCREMENTAL:NO +QMAKE_LFLAGS_RELEASE_WITH_DEBUGINFO = $$QMAKE_LFLAGS_RELEASE /DEBUG QMAKE_LFLAGS_DEBUG = /DEBUG QMAKE_LFLAGS_CONSOLE = /SUBSYSTEM:CONSOLE QMAKE_LFLAGS_WINDOWS = /SUBSYSTEM:WINDOWS |