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34 lines
649 B
Rust
34 lines
649 B
Rust
// run-pass
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// needs-asm-support
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// only-x86_64
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// Checks that multiple clobber_abi options can be used
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use std::arch::asm;
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extern "sysv64" fn foo(x: i32) -> i32 {
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x + 16
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}
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extern "win64" fn bar(x: i32) -> i32 {
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x / 2
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}
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fn main() {
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let x = 8;
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let y: i32;
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// call `foo` with `x` as the input, and then `bar` with the output of `foo`
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// and output that to `y`
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unsafe {
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asm!(
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"call {}; mov rcx, rax; call {}",
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sym foo,
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sym bar,
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in("rdi") x,
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out("rax") y,
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clobber_abi("sysv64", "win64"),
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);
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}
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assert_eq!((x, y), (8, 12));
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}
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