mirror of https://github.com/rust-lang/rust.git
17 lines
352 B
Rust
17 lines
352 B
Rust
//@ compile-flags: -O
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#![crate_type = "lib"]
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// CHECK-LABEL: @loop_skips_vtable_load
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#[no_mangle]
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pub fn loop_skips_vtable_load(x: &dyn Fn()) {
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// CHECK: load ptr, ptr %0{{.*}}, !invariant.load
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// CHECK-NEXT: tail call void %1
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// CHECK-NOT: load ptr
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x();
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for _ in 0..100 {
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// CHECK: tail call void %1
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x();
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}
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}
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