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Folkert de Vries
42 lines
1.2 KiB
Rust
42 lines
1.2 KiB
Rust
//@ add-minicore
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//@ revisions: win linux
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//@ min-llvm-version: 22
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//
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//@ compile-flags: -Copt-level=3
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//@[linux] compile-flags: --target x86_64-unknown-linux-gnu
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//@[linux] needs-llvm-components: x86
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//@[win] compile-flags: --target x86_64-pc-windows-msvc
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//@[win] needs-llvm-components: x86
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#![crate_type = "lib"]
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#![feature(no_core, lang_items, explicit_tail_calls)]
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#![allow(incomplete_features)]
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#![no_core]
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// Test passing of i128/u128, which is passed directly on x86, but indirectly on win64.
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extern crate minicore;
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use minicore::*;
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// linux: define noundef i128 @foo(i128 noundef %a, i128 noundef %b)
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// win: define <16 x i8> @foo(ptr {{.*}} %a, ptr {{.*}} %b)
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#[unsafe(no_mangle)]
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#[inline(never)]
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extern "C" fn foo(a: u128, b: u128) -> u128 {
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// linux: start:
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// linux-NEXT: musttail call noundef i128 @bar(i128 noundef %b, i128 noundef %a)
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//
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//
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// win: start:
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// win-NEXT: %0 = load i128, ptr %b
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// win-NEXT: %1 = load i128, ptr %a
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// win-NEXT: store i128 %0, ptr %a
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// win-NEXT: store i128 %1, ptr %b
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// win-NEXT: musttail call <16 x i8> @bar(ptr {{.*}} %a, ptr {{.*}} %b)
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become bar(b, a)
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}
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unsafe extern "C" {
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safe fn bar(a: u128, b: u128) -> u128;
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}
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