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nontemporal_store: make sure that the intrinsic is truly just a hint

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This commit is contained in:
Ralf Jung 2024-07-24 20:55:43 +02:00
parent d35f63e303
commit 80a7d5f61d
1 changed files with 2 additions and 1 deletions
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src/intrinsics/mod.rs
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@ -725,7 +725,8 @@ fn codegen_regular_intrinsic_call<'tcx>(
// Cranelift treats stores as volatile by default // Cranelift treats stores as volatile by default
// FIXME correctly handle unaligned_volatile_store // FIXME correctly handle unaligned_volatile_store
// FIXME actually do nontemporal stores if requested // FIXME actually do nontemporal stores if requested (but do not just emit MOVNT on x86;
// see the LLVM backend for details)
let dest = CPlace::for_ptr(Pointer::new(ptr), val.layout()); let dest = CPlace::for_ptr(Pointer::new(ptr), val.layout());
dest.write_cvalue(fx, val); dest.write_cvalue(fx, val);
} }