Gcc Mmx Support

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GCC 10 Lands Support For Emulating MMX With SSE ...

    https://www.phoronix.com/scan.php?page=news_item&px=GCC-10-Emulating-MMX-With-SSE
    May 17, 2019 · The GCC 10 code compiler merged support to begin emulating MMX intrinsics using SSE. Back in February we wrote about the patches by Intel for implementing MMX intrinsics using SSE instructions.For those still relying upon MMX SIMD instructions, the benefit of implementing it using SSE is that it frees up an 8-byte vectorizer for SSE2 when MMX is …

Using the GNU Compiler Collection (GCC): x86 Options

    https://gcc.gnu.org/onlinedocs/gcc-9.2.0/gcc/x86-Options.html
    3.18.58 x86 Options. These ‘-m’ options are defined for the x86 family of computers.-march=cpu-type Generate instructions for the machine type cpu-type.In contrast to -mtune=cpu-type, which merely tunes the generated code for the specified cpu-type, -march=cpu-type allows GCC to generate code that may not run at all on processors other than the one indicated.

GCC To Begin Implementing MMX Intrinsics With SSE ...

    https://www.phoronix.com/scan.php?page=news_item&px=GCC-MMX-Intrinsics-With-SSE
    The benefit when disabling MMX in 64-bit mode is that an 8-byte vectorizer is enabled with SSE2 but likely they are getting ready to permanently retire native MMX support in future processors. Details on this pending patch series for GCC 10 can be found on their mailing list. Emulating all of the MMX instructions with SSE plus the test coverage ...

x86 Options - Using the GNU Compiler Collection (GCC)

    https://gcc.gnu.org/onlinedocs/gcc-5.4.0/gcc/x86-Options.html
    In contrast to -mtune= cpu-type, which merely tunes the generated code for the specified cpu-type, -march= cpu-type allows GCC to generate code that may not run at all on processors other than the one indicated. ... Intel Pentium CPU with no MMX support.

Chapter 4. First code example using gcc vector support

    https://berthub.eu/gcc-simd/example.html
    These are described in the X86 Built-in functions and PowerPC Altivec Built-in functions chapters of the gcc manual. And lastly, gcc has recently gained intrinsic support for some SIMD operations whereby the coder requests a vector of specified dimension and content, and then performs operations on that vector.

IT Support, IT Solutions, Consultancy & Cloud Services - GCC

    https://www.gcc.co.uk/
    GCC offers a range of managed IT services that provide support and general management for your existing IT systems and solutions. We identify IT issues before they become problems. If something does go wrong, we fix it. As businesses change and grow, we make sure that their technology keeps pace.



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