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As experimentation in 115242 has shown looks better than `coldcc`. And *don't* use a different convention for cold on Windows, because that actually ends up making things worse. cc tracking issue 97544
28 lines
769 B
Rust
28 lines
769 B
Rust
// revisions: NORMAL WINDOWS
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// compile-flags: -C no-prepopulate-passes
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//[NORMAL] ignore-windows
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//[WINDOWS] only-windows
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//[WINDOWS] only-x86_64
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#![crate_type = "lib"]
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#![feature(rust_cold_cc)]
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// wasm marks the definition as `dso_local`, so allow that as optional.
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// NORMAL: define{{( dso_local)?}} preserve_mostcc void @this_should_never_happen(i16
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// NORMAL: call preserve_mostcc void @this_should_never_happen(i16
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// See the comment in `Target::adjust_abi` for why this differs
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// WINDOWS: define void @this_should_never_happen(i16
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// WINDOWS: call void @this_should_never_happen(i16
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#[no_mangle]
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pub extern "rust-cold" fn this_should_never_happen(x: u16) {}
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pub fn do_things(x: u16) {
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if x == 12345 {
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this_should_never_happen(54321);
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}
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}
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