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-rw-r--r--llvm/test/CodeGen/ARM64/inline-asm-zero-reg-error.ll11
1 files changed, 11 insertions, 0 deletions
diff --git a/llvm/test/CodeGen/ARM64/inline-asm-zero-reg-error.ll b/llvm/test/CodeGen/ARM64/inline-asm-zero-reg-error.ll
new file mode 100644
index 00000000000..6bfce8f8f6a
--- /dev/null
+++ b/llvm/test/CodeGen/ARM64/inline-asm-zero-reg-error.ll
@@ -0,0 +1,11 @@
+; RUN: not llc < %s -march=arm64 2>&1 | FileCheck %s
+
+
+; The 'z' constraint allocates either xzr or wzr, but obviously an input of 1 is
+; incompatible.
+define void @test_bad_zero_reg() {
+ tail call void asm sideeffect "USE($0)", "z"(i32 1) nounwind
+; CHECK: error: invalid operand for inline asm constraint 'z'
+
+ ret void
+}
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