Bug 109741

Summary: swr doesn't build on i386 - simdlib.hpp:594:37: error: static assertion failed: This path only meant for 64-bit code
Product: Mesa Reporter: Fabio Pedretti <pedretti.fabio>
Component: Drivers/Gallium/swrAssignee: Alok Hota <alok.hota>
Status: RESOLVED WONTFIX QA Contact: mesa-dev
Severity: normal    
Priority: medium    
Version: git   
Hardware: x86 (IA32)   
OS: Linux (All)   
Whiteboard:
i915 platform: i915 features:

Description Fabio Pedretti 2019-02-22 09:01:33 UTC 
Full build log:
https://launchpadlibrarian.net/412340387/buildlog_ubuntu-cosmic-i386.mesa_19.1~git1902220944.338dac~oibaf~c_BUILDING.txt.gz

Error:
In file included from ../src/gallium/drivers/swr/rasterizer/common/simdintrin.h:28,
                 from ../src/gallium/drivers/swr/rasterizer/core/format_types.h:31,
                 from ../src/gallium/drivers/swr/rasterizer/core/format_traits.h:32,
                 from ../src/gallium/drivers/swr/rasterizer/core/multisample.h:30,
                 from ../src/gallium/drivers/swr/rasterizer/core/backend.h:33,
                 from src/gallium/drivers/swr/rasterizer/core/backends/gen_BackendPixelRate0.cpp:47:
../src/gallium/drivers/swr/rasterizer/common/simdlib.hpp: In member function ‘uint32_t SIMDVecHash<SIMD_T>::operator()(Integer<SIMD_T>) const’:
../src/gallium/drivers/swr/rasterizer/common/simdlib.hpp:594:37: error: static assertion failed: This path only meant for 64-bit code
         static_assert(sizeof(void*) == 8, "This path only meant for 64-bit code");
                       ~~~~~~~~~~~~~~^~~~
../src/gallium/drivers/swr/rasterizer/common/simdlib.hpp:603:21: error: there are no arguments to ‘_mm_crc32_u64’ that depend on a template parameter, so a declaration of ‘_mm_crc32_u64’ must be available [-fpermissive]
             crc32 = _mm_crc32_u64(crc32, pData[i]);
                     ^~~~~~~~~~~~~
Comment 1 Alok Hota 2019-02-22 23:30:08 UTC 
This is unlikely to be fixed in the future. Our intended use case is large-scale scientific visualization, which is rarely, if ever, run on 32-bit machines today. At the moment we are targeting 64-bit platforms.
Comment 2 Gert Wollny 2019-02-28 09:09:53 UTC 
There is a patch for this: 
https://patchwork.freedesktop.org/patch/225706/

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