1 files changed, 28 insertions, 0 deletions
diff --git a/test/CodeGen/Thumb2/large-stack.ll b/test/CodeGen/Thumb2/large-stack.ll
new file mode 100644
index 0000000..865b17b
--- /dev/null
+++ b/test/CodeGen/Thumb2/large-stack.ll
@@ -0,0 +1,28 @@
+; RUN: llc < %s -march=thumb -mattr=+thumb2 | FileCheck %s
+
+define void @test1() {
+; CHECK: test1:
+; CHECK: sub sp, #64 * 4
+    %tmp = alloca [ 64 x i32 ] , align 4
+    ret void
+}
+
+define void @test2() {
+; CHECK: test2:
+; CHECK: sub.w sp, sp, #4160
+; CHECK: sub sp, #2 * 4
+    %tmp = alloca [ 4168 x i8 ] , align 4
+    ret void
+}
+
+define i32 @test3() {
+; CHECK: test3:
+; CHECK: sub.w sp, sp, #805306368
+; CHECK: sub sp, #4 * 4
+    %retval = alloca i32, align 4
+    %tmp = alloca i32, align 4
+    %a = alloca [805306369 x i8], align 16
+    store i32 0, i32* %tmp
+    %tmp1 = load i32* %tmp
+    ret i32 %tmp1
+}