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31 lines
689 B
Rust
31 lines
689 B
Rust
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// Checks that naked functions are never inlined.
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// compile-flags: -O -Zmir-opt-level=2
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// ignore-wasm32
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#![crate_type = "lib"]
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#![feature(asm)]
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#![feature(naked_functions)]
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#[inline(always)]
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#[naked]
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#[no_mangle]
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pub unsafe extern "C" fn f() {
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// Check that f has naked and noinline attributes.
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//
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// CHECK: define void @f() unnamed_addr [[ATTR:#[0-9]+]]
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// CHECK-NEXT: start:
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// CHECK-NEXT: call void asm
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asm!("", options(noreturn));
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}
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#[no_mangle]
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pub unsafe fn g() {
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// Check that call to f is not inlined.
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//
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// CHECK-LABEL: define void @g()
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// CHECK-NEXT: start:
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// CHECK-NEXT: call void @f()
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f();
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}
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// CHECK: attributes [[ATTR]] = { naked noinline{{.*}} }
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