It's not necessary to do rounding for alloca operations when the requested
alignment is equal to the stack alignment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40004 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/Transforms/TailDup/basictest.ll b/test/Transforms/TailDup/basictest.ll
new file mode 100644
index 0000000..085acf5
--- /dev/null
+++ b/test/Transforms/TailDup/basictest.ll
@@ -0,0 +1,22 @@
+; RUN: llvm-upgrade < %s | llvm-as | opt -tailduplicate -disable-output
+
+declare void %__main()
+
+int %main() {
+entry: ; No predecessors!
+ call void %__main( )
+ br label %loopentry
+
+loopentry: ; preds = %entry, %no_exit
+ %i.0 = phi int [ %inc, %no_exit ], [ 0, %entry ] ; <int> [#uses=2]
+ %tmp.1 = setle int %i.0, 99 ; <bool> [#uses=1]
+ br bool %tmp.1, label %no_exit, label %return
+
+no_exit: ; preds = %loopentry
+ %tmp.51 = call int %main( ) ; <int> [#uses=0]
+ %inc = add int %i.0, 1 ; <int> [#uses=1]
+ br label %loopentry
+
+return: ; preds = %loopentry
+ ret int %i.0
+}