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-rw-r--r--tests/codegen-llvm/target-feature-negative-implication.rs20
1 files changed, 20 insertions, 0 deletions
diff --git a/tests/codegen-llvm/target-feature-negative-implication.rs b/tests/codegen-llvm/target-feature-negative-implication.rs
new file mode 100644
index 00000000000..36cd82dd8cf
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+++ b/tests/codegen-llvm/target-feature-negative-implication.rs
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+//@ add-core-stubs
+//@ needs-llvm-components: x86
+//@ compile-flags: --target=x86_64-unknown-linux-gnu
+//@ compile-flags: -Ctarget-feature=-avx2
+
+#![feature(no_core, lang_items)]
+#![crate_type = "lib"]
+#![no_core]
+
+extern crate minicore;
+use minicore::*;
+
+#[no_mangle]
+pub unsafe fn banana() {
+    // CHECK-LABEL: @banana()
+    // CHECK-SAME: [[BANANAATTRS:#[0-9]+]] {
+}
+
+// CHECK: attributes [[BANANAATTRS]]
+// CHECK-SAME: -avx512