28 lines
682 B
Rust
28 lines
682 B
Rust
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// This test checks that temporaries for indirectly-passed arguments get lifetime markers.
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// compile-flags: -O -C no-prepopulate-passes -Zmir-opt-level=0
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#![crate_type = "lib"]
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extern "Rust" {
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fn f(x: [u8; 1024]);
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}
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const A: [u8; 1024] = [0; 1024];
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// CHECK-LABEL: @const_arg_indirect
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#[no_mangle]
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pub unsafe fn const_arg_indirect() {
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// Ensure that the live ranges for the two argument temporaries don't overlap.
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// CHECK: call void @llvm.lifetime.start
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// CHECK: call void @f
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// CHECK: call void @llvm.lifetime.end
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// CHECK: call void @llvm.lifetime.start
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// CHECK: call void @f
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// CHECK: call void @llvm.lifetime.end
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f(A);
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f(A);
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}
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