On Sun, Jan 20, 2019 at 7:09 PM Uros Bizjak <ubiz...@gmail.com> wrote: > > On Sun, Jan 20, 2019 at 4:11 PM H.J. Lu <hjl.to...@gmail.com> wrote: > > > > On Sun, Jan 20, 2019 at 4:03 AM Uros Bizjak <ubiz...@gmail.com> wrote: > > > > > > On 1/19/19, H.J. Lu <hjl.to...@gmail.com> wrote: > > > > According to Intel Intrinsics Guide: > > > > > > > > https://software.intel.com/sites/landingpage/IntrinsicsGuide/ > > > > > > > > Intel intrinsics should be available by including <immintrin.h>. This > > > > patch moves remaining Intel intrinsics head files from <x86intrin.h> to > > > > <immintrin.h>. > > > > > > I can't find the quoted requirement in the provided link. > > > > That is an interactive website. If you type in "_xgetbv" and click on it, > > you will get > > > > Synopsis > > > > unsigned __int64 _xgetbv (unsigned int a) > > #include <immintrin.h> > > Instruction: xgetbv > > CPUID Flags: XSAVE > > > > Description > > > > Copy up to 64-bits from the value of the extended control register > > (XCR) specified by a into dst. Currently only XFEATURE_ENABLED_MASK > > XCR is supported. > > > > Operation > > > > dst[63:0] := XCR[a] > > Ah, thanks for the hint. LGTM, but still needs RM approval.
I wonder, what is/was the purpose of x86intrin.h, considering that everything can be included from immintrin.h? Uros.
