[Hexagon] Add testcases for stack alignment and variable-sized objects
llvm-svn: 235602
diff --git a/llvm/test/CodeGen/Hexagon/stack-alloca1.ll b/llvm/test/CodeGen/Hexagon/stack-alloca1.ll
new file mode 100644
index 0000000..00e9e05
--- /dev/null
+++ b/llvm/test/CodeGen/Hexagon/stack-alloca1.ll
@@ -0,0 +1,18 @@
+; RUN: llc -O0 -march=hexagon < %s | FileCheck %s
+; CHECK: sub(r29, r[[REG:[0-9]+]])
+; CHECK: r29 = r[[REG]]
+
+target triple = "hexagon-unknown-unknown"
+
+; Function Attrs: nounwind uwtable
+define void @foo(i32 %n) #0 {
+entry:
+ %x = alloca i32, i32 %n
+ %0 = bitcast i32* %x to i8*
+ call void @bar(i8* %0)
+ ret void
+}
+
+declare void @bar(i8*) #0
+
+attributes #0 = { nounwind }