1 files changed, 24 insertions, 0 deletions
diff --git a/test/CodeGen/ARM/alloca-align.ll b/test/CodeGen/ARM/alloca-align.ll
new file mode 100644
index 000000000000..3bba156f0ee0
--- /dev/null
+++ b/test/CodeGen/ARM/alloca-align.ll
@@ -0,0 +1,24 @@
+; RUN: llc -o - %s | FileCheck %s
+target triple="arm--"
+
+@glob = external global i32*
+
+declare void @bar(i32*, [20000 x i8]* byval)
+
+; CHECK-LABEL: foo:
+; We should see the stack getting additional alignment
+; CHECK: sub sp, sp, #16
+; CHECK: bic sp, sp, #31
+; And a base pointer getting used.
+; CHECK: mov r6, sp
+; Which is passed to the call
+; CHECK: add [[REG:r[0-9]+]], r6, #19456
+; CHECK: add r0, [[REG]], #536
+; CHECK: bl bar
+define void @foo([20000 x i8]* %addr) {
+  %tmp = alloca [4 x i32], align 32
+  %tmp0 = getelementptr [4 x i32], [4 x i32]* %tmp, i32 0, i32 0
+  call void @bar(i32* %tmp0, [20000 x i8]* byval %addr)
+  ret void
+}
+