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_mm256_mul_ps segfaults w/ linker options -Wl,-O1 -Wl,--as-needed #11

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lschneiderbauer opened this issue Nov 13, 2022 · 0 comments · Fixed by #14
Closed

_mm256_mul_ps segfaults w/ linker options -Wl,-O1 -Wl,--as-needed #11

lschneiderbauer opened this issue Nov 13, 2022 · 0 comments · Fixed by #14

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@lschneiderbauer
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lschneiderbauer commented Nov 13, 2022 •
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Hi,

I have no idea why this is happening, but when compiling your code w/ the linker options -Wl,-O1 -Wl,--as-needed the program segfaults when executing line 85 in fcwt.cpp:
O8[q4] = _mm256_mul_ps(I8[q4],tmp[0]);.

When omitting those options the code runs fine.

I am on linux 5.15, using gcc 12.2; fftw version 3.3.10.
Any idea what's going on here?
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ensure proper 32 byte alignment for avx2 instruction usage lschneiderbauer/fCWT
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@lschneiderbauer