Translate builtin_assume and unaligned SIMD intrinsics
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Unaligned vector types such as `__m128_u` or `__256_u` not not have any equivalents in Rust so we translate them to their aligned equivalents. This is unsound so we emit warning that the program may be mistranspiled.
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kkysen
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Sep 21, 2024
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| // TODO: provide proper implementation, this is just to get stuff building | ||
| "__builtin_assume" => Ok(self.convert_expr(ctx.used(), args[0])?), |
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When you do implement this, note that Rust (as of 1.81.0) now has core::hint::assert_unchecked, which should be the equivalent of __builtin_assume.
kkysen
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Sep 23, 2024
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There does seem to be some unaligned stuff in stdarch.
For example, _mm_storeu_si128.
Also, https://doc.rust-lang.org/std/arch/index.html?search=loadu.
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Unaligned vector types such as
__m128_uor__256_unot not have any equivalents in Rust so we translate them to their aligned equivalents. This is unsound so we emit warning that the program may be mistranspiled. These fixes are required to transpile thezstdcompressor on modern x86 hosts.