1 files changed, 14 insertions, 0 deletions
diff --git a/test/CodeGen/ARM/2009-04-09-RegScavengerAsm.ll b/test/CodeGen/ARM/2009-04-09-RegScavengerAsm.ll
new file mode 100644
index 0000000..223fa0f
--- /dev/null
+++ b/test/CodeGen/ARM/2009-04-09-RegScavengerAsm.ll
@@ -0,0 +1,14 @@
+; RUN: llvm-as < %s | llc -march=arm
+; PR3954
+
+define void @foo(...) nounwind {
+entry:
+	%rr = alloca i32		; <i32*> [#uses=2]
+	%0 = load i32* %rr		; <i32> [#uses=1]
+	%1 = call i32 asm "nop", "=r,0"(i32 %0) nounwind		; <i32> [#uses=1]
+	store i32 %1, i32* %rr
+	br label %return
+
+return:		; preds = %entry
+	ret void
+}