[Discuss-gnuradio] [volk] MSVC optimizer bug

[Gisle Vanem]

I'm experiencing an INTERNAL COMPILER ERROR in MSVC-2017
(latest version 19.13.26129 for x86) when compiling
volk/lib/volk_machine_sse2_mmx.c.

Function volk_32f_index_max_16u_a_sse(), ref:
    
https://www.gnuradio.org/doc/doxygen-3.7.2.1/volk__32f__index__max__16u_8h_source.html
at lines 70 - 122.

Is anybody else having troubles with this?

A fix for me was to remove all '-O..'  flags when compiling
this file. No problems with any other files. Or use the attached patch.

This "optimizer bug" has been reported here:
    
https://developercommunity.visualstudio.com/content/problem/237802/optimizer-bug-still-persists.html

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--gv

msvc-sse2-patch.txt
Description: Text document