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30 lines
795 B
Rust
30 lines
795 B
Rust
//@ compile-flags: -C no-prepopulate-passes -Copt-level=0
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//@ needs-asm-support
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//@ only-x86_64
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#![crate_type = "lib"]
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#![feature(naked_functions)]
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use std::arch::naked_asm;
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// CHECK: Function Attrs: naked
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// CHECK-NEXT: define{{.*}}void @naked_empty()
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#[no_mangle]
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#[naked]
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pub unsafe extern "C" fn naked_empty() {
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// CHECK-NEXT: {{.+}}:
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// CHECK-NEXT: call void asm
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// CHECK-NEXT: unreachable
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naked_asm!("ret");
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}
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// CHECK: Function Attrs: naked
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// CHECK-NEXT: define{{.*}}i{{[0-9]+}} @naked_with_args_and_return(i64 %0, i64 %1)
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#[no_mangle]
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#[naked]
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pub unsafe extern "C" fn naked_with_args_and_return(a: isize, b: isize) -> isize {
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// CHECK-NEXT: {{.+}}:
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// CHECK-NEXT: call void asm
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// CHECK-NEXT: unreachable
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naked_asm!("lea rax, [rdi + rsi]", "ret");
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}
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