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Folkert de Vries
20 lines
547 B
Rust
20 lines
547 B
Rust
//@ add-minicore
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//@ compile-flags: -Copt-level=3
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#![feature(c_variadic)]
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#![crate_type = "lib"]
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unsafe extern "C" {
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fn g(v: *mut u8);
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}
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#[unsafe(no_mangle)]
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pub unsafe extern "C" fn f(mut args: ...) {
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// CHECK: call void @llvm.va_start
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unsafe { g(&raw mut args as *mut u8) }
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// We expect one call to the LLVM va_end from our desugaring of `...`. The `Drop` implementation
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// should only call the rust va_end intrinsic, which is a no-op.
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//
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// CHECK: call void @llvm.va_end
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// CHECK-NOT: call void @llvm.va_end
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}
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