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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/zst-offset.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/zst-offset.rs')
-rw-r--r-- | tests/codegen/zst-offset.rs | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/tests/codegen/zst-offset.rs b/tests/codegen/zst-offset.rs new file mode 100644 index 000000000..cef4b9bda --- /dev/null +++ b/tests/codegen/zst-offset.rs @@ -0,0 +1,43 @@ +// compile-flags: -C no-prepopulate-passes -Copt-level=0 + +#![crate_type = "lib"] +#![feature(repr_simd)] + +// Hack to get the correct size for the length part in slices +// CHECK: @helper([[USIZE:i[0-9]+]] %_1) +#[no_mangle] +pub fn helper(_: usize) { +} + +// Check that we correctly generate a GEP for a ZST that is not included in Scalar layout +// CHECK-LABEL: @scalar_layout +#[no_mangle] +pub fn scalar_layout(s: &(u64, ())) { +// CHECK: getelementptr i8, {{.+}}, [[USIZE]] 8 + let x = &s.1; + witness(&x); // keep variable in an alloca +} + +// Check that we correctly generate a GEP for a ZST that is not included in ScalarPair layout +// CHECK-LABEL: @scalarpair_layout +#[no_mangle] +pub fn scalarpair_layout(s: &(u64, u32, ())) { +// CHECK: getelementptr i8, {{.+}}, [[USIZE]] 12 + let x = &s.2; + witness(&x); // keep variable in an alloca +} + +#[repr(simd)] +pub struct U64x4(u64, u64, u64, u64); + +// Check that we correctly generate a GEP for a ZST that is not included in Vector layout +// CHECK-LABEL: @vector_layout +#[no_mangle] +pub fn vector_layout(s: &(U64x4, ())) { +// CHECK: getelementptr i8, {{.+}}, [[USIZE]] 32 + let x = &s.1; + witness(&x); // keep variable in an alloca +} + +#[inline(never)] +fn witness(_: &impl Sized) {} |