mirror of https://github.com/rust-lang/rust
23 lines
662 B
Rust
23 lines
662 B
Rust
//@ compile-flags: -C no-prepopulate-passes -Zmir-opt-level=0 -Copt-level=0
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#![crate_type = "lib"]
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// Hack to get the correct size for the length part in slices
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// CHECK: @helper([[USIZE:i[0-9]+]] %_1)
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#[no_mangle]
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pub fn helper(_: usize) {
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}
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// CHECK-LABEL: @ref_dst
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#[no_mangle]
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pub fn ref_dst(s: &[u8]) {
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// We used to generate an extra alloca and memcpy to ref the dst, so check that we copy
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// directly to the alloca for "x"
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// CHECK: store ptr %s.0, {{.*}} %x
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// CHECK: [[X1:%[0-9]+]] = getelementptr inbounds i8, {{.*}} %x, {{i32 4|i64 8}}
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// CHECK: store [[USIZE]] %s.1, {{.*}} [[X1]]
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let x = &*s;
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&x; // keep variable in an alloca
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}
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