1 files changed, 22 insertions, 0 deletions
diff --git a/test/CodeGen/ARM/Windows/alloca.ll b/test/CodeGen/ARM/Windows/alloca.ll
new file mode 100644
index 0000000..6a3d002
--- /dev/null
+++ b/test/CodeGen/ARM/Windows/alloca.ll
@@ -0,0 +1,22 @@
+; RUN: llc -O0 -mtriple thumbv7-windows-itanium -filetype asm -o - %s | FileCheck %s
+
+declare arm_aapcs_vfpcc i32 @num_entries()
+
+define arm_aapcs_vfpcc void @test___builtin_alloca() {
+entry:
+  %array = alloca i8*, align 4
+  %call = call arm_aapcs_vfpcc i32 @num_entries()
+  %mul = mul i32 4, %call
+  %0 = alloca i8, i32 %mul
+  store i8* %0, i8** %array, align 4
+  ret void
+}
+
+; CHECK: bl num_entries
+; CHECK: movs [[R1:r[0-9]+]], #7
+; CHECK: add.w [[R0:r[0-9]+]], [[R1]], [[R0]], lsl #2
+; CHECK: bic [[R0]], [[R0]], #7
+; CHECK: lsrs r4, [[R0]], #2
+; CHECK: bl __chkstk
+; CHECK: sub.w sp, sp, r4
+