SSE optimization instruction Set compilation error: Inlining failed in call to Always_inline ' xxx ': Target specific option mismatch XXX

Source: Internet
Author: User

When compiling the SSE optimization instruction with Qtcreator, the following error occurred.


Inlining failed in call to Always_inline ' __m128i _mm_packus_epi32 (__m128i, __m128i) ': Target specific option mismatch
_MM_PACKUS_EPI32 (__m128i __x, __m128i __y)
^
The reason for this error is that the corresponding SSE option was not specified at compile time.
Workaround: Locate the SSE instruction set corresponding to the error instruction in the document, the Intel Official Instruction Set Wizard, and add it to the Qt engineering settings, such as the above error instruction Packusdw is


sse4.1, so add in QT settings:
Qmake_cxxflags = "-msse4.1"
Similarly,
Qmake_cxxflags = "-msse2"
Qmake_cxxflags = "-mssse3"
......


If you write your own makefile, set up a similar method, but also add-msse2,-msse4.1 options.

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