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38 lines
944 B
Rust
38 lines
944 B
Rust
//! Regression test for https://github.com/rust-lang/rust/issues/137646.
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//! Since we don't know the exact implementation of the virtual call,
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//! it might write to parameters, we can't infer the readonly attribute.
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//@ compile-flags: -C opt-level=3 -C no-prepopulate-passes
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#![crate_type = "lib"]
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#![feature(rustc_attrs)]
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pub trait Trait {
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#[rustc_nounwind]
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fn m(&self, _: (i32, i32, i32)) {}
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}
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#[no_mangle]
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pub fn foo(trait_: &dyn Trait) {
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// CHECK-LABEL: @foo(
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// CHECK: call void
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// CHECK-NOT: readonly
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trait_.m((1, 1, 1));
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}
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#[no_mangle]
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#[rustc_nounwind]
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pub fn foo_nounwind(trait_: &dyn Trait) {
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// CHECK-LABEL: @foo_nounwind(
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// FIXME: Here should be invoke.
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// COM: CHECK: invoke
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trait_.m((1, 1, 1));
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}
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#[no_mangle]
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pub extern "C" fn c_nounwind(trait_: &dyn Trait) {
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// CHECK-LABEL: @c_nounwind(
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// FIXME: Here should be invoke.
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// COM: CHECK: invoke
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trait_.m((1, 1, 1));
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}
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