mirror of
https://github.com/rust-lang/rust
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36 lines
817 B
Rust
36 lines
817 B
Rust
// compile-flags: -Zvirtual-function-elimination -Clto -O -Csymbol-mangling-version=v0
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// ignore-64bit
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// CHECK: @vtable.0 = {{.*}}, !type ![[TYPE0:[0-9]+]], !vcall_visibility ![[VCALL_VIS0:[0-9]+]]
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#![crate_type = "lib"]
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trait T {
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// CHECK-LABEL: ; <virtual_function_elimination_32bit::S as virtual_function_elimination_32bit::T>::used
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fn used(&self) -> i32 {
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1
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}
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// CHECK-LABEL-NOT: {{.*}}::unused
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fn unused(&self) -> i32 {
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2
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}
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}
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#[derive(Copy, Clone)]
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struct S;
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impl T for S {}
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fn taking_t(t: &dyn T) -> i32 {
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// CHECK: @llvm.type.checked.load({{.*}}, i32 12, metadata !"[[MANGLED_TYPE0:[0-9a-zA-Z_]+]]")
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t.used()
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}
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pub fn main() {
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let s = S;
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taking_t(&s);
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}
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// CHECK: ![[TYPE0]] = !{i32 0, !"[[MANGLED_TYPE0]]"}
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// CHECK: ![[VCALL_VIS0]] = !{i64 2}
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