rust-lang / rust-lang/rustc_codegen_cranelift
pathfinder_simd doesn't compile on arm64
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A-core-arch
C-bug
O-arm
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Description
error[E0511]: invalid monomorphization of `simd_shuffle` intrinsic: simd_shuffle index must be a SIMD vector of `u32`, got `[u32; 4]`
--> /Users/bjorn/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/pathfinder_simd-0.5.4/src/arm/swizzle_f32x4.rs:1818:24
|
1818 | unsafe { F32x4(simd_shuffle4!(self.0, self.0, [3, 3, 3, 3])) }
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
= note: this error originates in the macro `simd_shuffle4` (in Nightly builds, run with -Z macro-backtrace for more info)
This breaks compiling zed on macOS.
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- Open a pull request that references the issue number.
Research direction
Start by reproducing the macOS arm64 build failure while compiling zed and inspect pathfinder_simd-0.5.4/src/arm/swizzle_f32x4.rs at line 1818, where simd_shuffle4! is used. Investigate the reported simd_shuffle intrinsic requirement and verify that pathfinder_simd compiles successfully on arm64 without this error.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- rust
- Domain
- compilers
- Issue type
- Bug
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 45/100