cmake: require YMM asm for inline AVX probe#2385
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The existing `OPENEXR_IMF_HAVE_GCC_INLINE_ASM_AVX` `try-compile` could succeed on legacy toolchains that assemble `xgetbv/vzeroupper` but reject YMM/VEX instructions, leading to later build failures. This adds `vmovaps %%ymm0` to the `__asm__` call in `check_cxx_source_compiles` call because it's needed by the DWA encoder/decoder. That way, if the probe fails, the DWA code path doesn't attempt to use the missing instructions. Should resolve AcademySoftwareFoundation#1415 Made-with: Cursor Signed-off-by: Cary Phillips <cary@ilm.com>
kdt3rd
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The existing
OPENEXR_IMF_HAVE_GCC_INLINE_ASM_AVXtry-compilecould succeed on legacy toolchains that assemblexgetbv/vzeroupperbut reject YMM/VEX instructions, leading to later build failures.This adds
vmovaps %%ymm0to the__asm__call incheck_cxx_source_compilescall because it's needed by the DWA encoder/decoder. That way, if the probe fails, the DWA code path doesn't attempt to use the missing instructions.Should resolve #1415
Made-with: Cursor