Make sure SP is always aligned on a 2 byte boundary

[oota-llvm.git] / test / CodeGen / MSP430 / transient-stack-alignment.ll

diff --git a/test/CodeGen/MSP430/transient-stack-alignment.ll b/test/CodeGen/MSP430/transient-stack-alignment.ll
new file mode 100644 (file)
index 0000000..cca8350
--- /dev/null
+++ b/test/CodeGen/MSP430/transient-stack-alignment.ll
@@ -0,0 +1,17 @@
+; RUN: llc < %s | FileCheck %s
+
+target datalayout = "e-p:16:16:16-i8:8:8-i16:16:16-i32:16:32-n8:16-a0:16:16"
+target triple = "msp430---elf"
+
+define void @test() #0 {
+; CHECK-LABEL: test:
+; CHECK: sub.w #2, r1
+  %1 = alloca i8, align 1
+; CHECK-NEXT: mov.b #0, 1(r1)
+  store i8 0, i8* %1, align 1
+; CHECK-NEXT: add.w #2, r1
+; CHECK-NEXT: ret
+  ret void
+}
+
+attributes #0 = { nounwind "no-frame-pointer-elim"="false" }