From 64d98f8ee037282c35007b64c2649055c56af1db Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Wed, 17 Apr 2024 14:19:03 +0200 Subject: Merging upstream version 1.68.2+dfsg1. Signed-off-by: Daniel Baumann --- tests/codegen/zst-offset.rs | 43 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 43 insertions(+) create mode 100644 tests/codegen/zst-offset.rs (limited to 'tests/codegen/zst-offset.rs') 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) {} -- cgit v1.2.3