From a27f3e3fd1e4d16160f8885b6b06665b5319f56c Mon Sep 17 00:00:00 2001 From: Guillaume Gomez Date: Mon, 21 Jul 2025 14:34:12 +0200 Subject: Rename `tests/codegen` into `tests/codegen-llvm` --- tests/codegen-llvm/refs.rs | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) create mode 100644 tests/codegen-llvm/refs.rs (limited to 'tests/codegen-llvm/refs.rs') diff --git a/tests/codegen-llvm/refs.rs b/tests/codegen-llvm/refs.rs new file mode 100644 index 00000000000..97c36295085 --- /dev/null +++ b/tests/codegen-llvm/refs.rs @@ -0,0 +1,21 @@ +//@ compile-flags: -C no-prepopulate-passes -Zmir-opt-level=0 -Copt-level=0 + +#![crate_type = "lib"] + +// 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-LABEL: @ref_dst +#[no_mangle] +pub fn ref_dst(s: &[u8]) { + // We used to generate an extra alloca and memcpy to ref the dst, so check that we copy + // directly to the alloca for "x" + // CHECK: store ptr %s.0, {{.*}} %x + // CHECK: [[X1:%[0-9]+]] = getelementptr inbounds i8, {{.*}} %x, {{i32 4|i64 8}} + // CHECK: store [[USIZE]] %s.1, {{.*}} [[X1]] + + let x = &*s; + &x; // keep variable in an alloca +} -- cgit 1.4.1-3-g733a5