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28 lines
586 B
Rust
28 lines
586 B
Rust
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//@ compile-flags: -O
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// XXX: The x86-64 assembly get optimized correclty. But llvm-ir output is not until llvm 18?
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//@ min-llvm-version: 18
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#![crate_type = "lib"]
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pub enum K{
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A(Box<[i32]>),
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B(Box<[u8]>),
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C(Box<[String]>),
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D(Box<[u16]>),
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}
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#[no_mangle]
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// CHECK-LABEL: @get_len
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// CHECK: getelementptr inbounds
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// CHECK-NEXT: load
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// CHECK-NEXT: ret i64
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// CHECK-NOT: switch
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pub fn get_len(arg: &K)->usize{
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match arg {
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K::A(ref lst)=>lst.len(),
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K::B(ref lst)=>lst.len(),
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K::C(ref lst)=>lst.len(),
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K::D(ref lst)=>lst.len(),
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}
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}
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