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24 lines
773 B
Rust
24 lines
773 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: [[X0:%[0-9]+]] = getelementptr inbounds { ptr, [[USIZE]] }, {{.*}} %x, i32 0, i32 0
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// CHECK: store ptr %s.0, {{.*}} [[X0]]
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// CHECK: [[X1:%[0-9]+]] = getelementptr inbounds { ptr, [[USIZE]] }, {{.*}} %x, i32 0, i32 1
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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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