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| author | Jamie Cunliffe <Jamie.Cunliffe@arm.com> | 2023-01-17 15:49:20 +0000 |
|---|---|---|
| committer | Jamie Cunliffe <Jamie.Cunliffe@arm.com> | 2023-05-22 14:27:14 +0100 |
| commit | 4cca436e300db5e6429aa8f041f4dbbcfdecf1b1 (patch) | |
| tree | e4e84ba23e8b795cfa6aaf1f4354610329370c65 /compiler/rustc_codegen_llvm/src/llvm_util.rs | |
| parent | 48ec50ae39d0ca0baa0e78f56c395dcc6d7ebd65 (diff) | |
| download | rust-4cca436e300db5e6429aa8f041f4dbbcfdecf1b1.tar.gz rust-4cca436e300db5e6429aa8f041f4dbbcfdecf1b1.zip | |
Tie neon with fp-armv8.
In #91608 the fp-armv8 feature was removed as it's tied to the neon feature. However disabling neon didn't actually disable the use of floating point registers and instructions, for this `-fp-armv8` is required.
Diffstat (limited to 'compiler/rustc_codegen_llvm/src/llvm_util.rs')
| -rw-r--r-- | compiler/rustc_codegen_llvm/src/llvm_util.rs | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/compiler/rustc_codegen_llvm/src/llvm_util.rs b/compiler/rustc_codegen_llvm/src/llvm_util.rs index 994addf12eb..abf46b914b7 100644 --- a/compiler/rustc_codegen_llvm/src/llvm_util.rs +++ b/compiler/rustc_codegen_llvm/src/llvm_util.rs @@ -163,8 +163,10 @@ pub fn to_llvm_features<'a>(sess: &Session, s: &'a str) -> SmallVec<[&'a str; 2] ("aarch64", "pmuv3") => smallvec!["perfmon"], ("aarch64", "paca") => smallvec!["pauth"], ("aarch64", "pacg") => smallvec!["pauth"], - // Rust ties fp and neon together. In LLVM neon implicitly enables fp, - // but we manually enable neon when a feature only implicitly enables fp + // Rust ties fp and neon together. + ("aarch64", "neon") => smallvec!["neon", "fp-armv8"], + // In LLVM neon implicitly enables fp, but we manually enable + // neon when a feature only implicitly enables fp ("aarch64", "f32mm") => smallvec!["f32mm", "neon"], ("aarch64", "f64mm") => smallvec!["f64mm", "neon"], ("aarch64", "fhm") => smallvec!["fp16fml", "neon"], |