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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:18:58 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:18:58 +0000 |
commit | a4b7ed7a42c716ab9f05e351f003d589124fd55d (patch) | |
tree | b620cd3f223850b28716e474e80c58059dca5dd4 /tests/codegen/tuple-layout-opt.rs | |
parent | Adding upstream version 1.67.1+dfsg1. (diff) | |
download | rustc-a4b7ed7a42c716ab9f05e351f003d589124fd55d.tar.xz rustc-a4b7ed7a42c716ab9f05e351f003d589124fd55d.zip |
Adding upstream version 1.68.2+dfsg1.upstream/1.68.2+dfsg1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'tests/codegen/tuple-layout-opt.rs')
-rw-r--r-- | tests/codegen/tuple-layout-opt.rs | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/tests/codegen/tuple-layout-opt.rs b/tests/codegen/tuple-layout-opt.rs new file mode 100644 index 000000000..35f760851 --- /dev/null +++ b/tests/codegen/tuple-layout-opt.rs @@ -0,0 +1,36 @@ +// ignore-emscripten +// compile-flags: -C no-prepopulate-passes -Copt-level=0 + +// Test that tuples get optimized layout, in particular with a ZST in the last field (#63244) + +#![crate_type="lib"] + +type ScalarZstLast = (u128, ()); +// CHECK: define i128 @test_ScalarZstLast(i128 %_1) +#[no_mangle] +pub fn test_ScalarZstLast(_: ScalarZstLast) -> ScalarZstLast { loop {} } + +type ScalarZstFirst = ((), u128); +// CHECK: define i128 @test_ScalarZstFirst(i128 %_1) +#[no_mangle] +pub fn test_ScalarZstFirst(_: ScalarZstFirst) -> ScalarZstFirst { loop {} } + +type ScalarPairZstLast = (u8, u128, ()); +// CHECK: define { i128, i8 } @test_ScalarPairZstLast(i128 %_1.0, i8 %_1.1) +#[no_mangle] +pub fn test_ScalarPairZstLast(_: ScalarPairZstLast) -> ScalarPairZstLast { loop {} } + +type ScalarPairZstFirst = ((), u8, u128); +// CHECK: define { i8, i128 } @test_ScalarPairZstFirst(i8 %_1.0, i128 %_1.1) +#[no_mangle] +pub fn test_ScalarPairZstFirst(_: ScalarPairZstFirst) -> ScalarPairZstFirst { loop {} } + +type ScalarPairLotsOfZsts = ((), u8, (), u128, ()); +// CHECK: define { i128, i8 } @test_ScalarPairLotsOfZsts(i128 %_1.0, i8 %_1.1) +#[no_mangle] +pub fn test_ScalarPairLotsOfZsts(_: ScalarPairLotsOfZsts) -> ScalarPairLotsOfZsts { loop {} } + +type ScalarPairLottaNesting = (((), ((), u8, (), u128, ())), ()); +// CHECK: define { i128, i8 } @test_ScalarPairLottaNesting(i128 %_1.0, i8 %_1.1) +#[no_mangle] +pub fn test_ScalarPairLottaNesting(_: ScalarPairLottaNesting) -> ScalarPairLottaNesting { loop {} } |