[Hexagon] Add testcases for stack alignment and variable-sized objects
llvm-svn: 235602
diff --git a/llvm/test/CodeGen/Hexagon/stack-alloca2.ll b/llvm/test/CodeGen/Hexagon/stack-alloca2.ll
new file mode 100644
index 0000000..ad5e131
--- /dev/null
+++ b/llvm/test/CodeGen/Hexagon/stack-alloca2.ll
@@ -0,0 +1,23 @@
+; RUN: llc -O0 -march=hexagon < %s | FileCheck %s
+; CHECK-DAG: r[[AP:[0-9]+]] = and(r30, #-32)
+; CHECK-DAG: r1 = add(r[[AP]], #-32)
+
+; CHECK-DAG: sub(r29, r[[SP:[0-9]+]])
+; CHECK-DAG: r29 = r[[SP]]
+
+target triple = "hexagon-unknown-unknown"
+
+; Function Attrs: nounwind uwtable
+define void @foo(i32 %n) #0 {
+entry:
+ %x = alloca i32, i32 %n
+ %y = alloca i32, align 32
+ %0 = bitcast i32* %x to i8*
+ %1 = bitcast i32* %y to i8*
+ call void @bar(i8* %0, i8* %1)
+ ret void
+}
+
+declare void @bar(i8*, i8* %y) #0
+
+attributes #0 = { nounwind }