1 files changed, 37 insertions, 0 deletions
diff --git a/tests/ui/target-cpu/explicit-target-cpu.rs b/tests/ui/target-cpu/explicit-target-cpu.rs
new file mode 100644
index 00000000000..cd4c2384bc1
--- /dev/null
+++ b/tests/ui/target-cpu/explicit-target-cpu.rs
@@ -0,0 +1,37 @@
+//! Check that certain target *requires* the user to specify a target CPU via `-C target-cpu`.
+
+//@ revisions: amdgcn_nocpu amdgcn_cpu
+
+//@[amdgcn_nocpu] compile-flags: --target=amdgcn-amd-amdhsa
+//@[amdgcn_nocpu] needs-llvm-components: amdgpu
+//@[amdgcn_nocpu] build-fail
+
+//@[amdgcn_cpu] compile-flags: --target=amdgcn-amd-amdhsa
+//@[amdgcn_cpu] needs-llvm-components: amdgpu
+//@[amdgcn_cpu] compile-flags: -Ctarget-cpu=gfx900
+//@[amdgcn_cpu] build-pass
+
+//@ revisions: avr_nocpu avr_cpu
+
+//@[avr_nocpu] compile-flags: --target=avr-none
+//@[avr_nocpu] needs-llvm-components: avr
+//@[avr_nocpu] build-fail
+
+//@[avr_cpu] compile-flags: --target=avr-none
+//@[avr_cpu] needs-llvm-components: avr
+//@[avr_cpu] compile-flags: -Ctarget-cpu=atmega328p
+//@[avr_cpu] build-pass
+
+#![crate_type = "rlib"]
+
+// FIXME(#140038): this can't use `minicore` yet because `minicore` doesn't currently propagate the
+// `-C target-cpu` for targets that *require* a `target-cpu` being specified.
+#![feature(no_core, lang_items)]
+#![no_core]
+
+#[lang="sized"]
+trait Sized {}
+
+pub fn foo() {}
+
+//[amdgcn_nocpu,avr_nocpu]~? ERROR target requires explicitly specifying a cpu with `-C target-cpu`