mirror of https://github.com/rust-lang/rust
36 lines
1.5 KiB
Rust
36 lines
1.5 KiB
Rust
//@ compile-flags: -C no-prepopulate-passes -Copt-level=0
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// Test that tuples get optimized layout, in particular with a ZST in the last field (#63244)
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#![crate_type="lib"]
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type ScalarZstLast = (u128, ());
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// CHECK: define {{(dso_local )?}}i128 @test_ScalarZstLast(i128 %_1)
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#[no_mangle]
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pub fn test_ScalarZstLast(_: ScalarZstLast) -> ScalarZstLast { loop {} }
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type ScalarZstFirst = ((), u128);
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// CHECK: define {{(dso_local )?}}i128 @test_ScalarZstFirst(i128 %_1)
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#[no_mangle]
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pub fn test_ScalarZstFirst(_: ScalarZstFirst) -> ScalarZstFirst { loop {} }
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type ScalarPairZstLast = (u8, u128, ());
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// CHECK: define {{(dso_local )?}}{ i128, i8 } @test_ScalarPairZstLast(i128 %_1.0, i8 %_1.1)
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#[no_mangle]
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pub fn test_ScalarPairZstLast(_: ScalarPairZstLast) -> ScalarPairZstLast { loop {} }
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type ScalarPairZstFirst = ((), u8, u128);
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// CHECK: define {{(dso_local )?}}{ i8, i128 } @test_ScalarPairZstFirst(i8 %_1.0, i128 %_1.1)
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#[no_mangle]
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pub fn test_ScalarPairZstFirst(_: ScalarPairZstFirst) -> ScalarPairZstFirst { loop {} }
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type ScalarPairLotsOfZsts = ((), u8, (), u128, ());
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// CHECK: define {{(dso_local )?}}{ i128, i8 } @test_ScalarPairLotsOfZsts(i128 %_1.0, i8 %_1.1)
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#[no_mangle]
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pub fn test_ScalarPairLotsOfZsts(_: ScalarPairLotsOfZsts) -> ScalarPairLotsOfZsts { loop {} }
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type ScalarPairLottaNesting = (((), ((), u8, (), u128, ())), ());
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// CHECK: define {{(dso_local )?}}{ i128, i8 } @test_ScalarPairLottaNesting(i128 %_1.0, i8 %_1.1)
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#[no_mangle]
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pub fn test_ScalarPairLottaNesting(_: ScalarPairLottaNesting) -> ScalarPairLottaNesting { loop {} }
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