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/LoopUnswitch/basictest.ll b/test/Transforms/LoopUnswitch/basictest.ll
new file mode 100644
index 0000000..c0c14b9
--- /dev/null
+++ b/test/Transforms/LoopUnswitch/basictest.ll
@@ -0,0 +1,35 @@
+; RUN: llvm-upgrade < %s | llvm-as | opt -loop-unswitch -disable-output
+implementation ; Functions:
+
+int %test(int* %A, bool %C) {
+entry:
+ br label %no_exit
+
+no_exit: ; preds = %entry, %no_exit.backedge
+ %i.0.0 = phi uint [ 0, %entry ], [ %i.0.0.be, %no_exit.backedge ] ; <uint> [#uses=3]
+ %tmp.7 = getelementptr int* %A, uint %i.0.0 ; <int*> [#uses=4]
+ %tmp.13 = load int* %tmp.7 ; <int> [#uses=1]
+ %tmp.14 = add int %tmp.13, 1 ; <int> [#uses=1]
+ store int %tmp.14, int* %tmp.7
+ br bool %C, label %then, label %endif
+
+then: ; preds = %no_exit
+ %tmp.29 = load int* %tmp.7 ; <int> [#uses=1]
+ %tmp.30 = add int %tmp.29, 2 ; <int> [#uses=1]
+ store int %tmp.30, int* %tmp.7
+ %inc9 = add uint %i.0.0, 1 ; <uint> [#uses=2]
+ %tmp.112 = setlt uint %inc9, 100000 ; <bool> [#uses=1]
+ br bool %tmp.112, label %no_exit.backedge, label %return
+
+no_exit.backedge: ; preds = %then, %endif
+ %i.0.0.be = phi uint [ %inc9, %then ], [ %inc, %endif ] ; <uint> [#uses=1]
+ br label %no_exit
+
+endif: ; preds = %no_exit
+ %inc = add uint %i.0.0, 1 ; <uint> [#uses=2]
+ %tmp.1 = setlt uint %inc, 100000 ; <bool> [#uses=1]
+ br bool %tmp.1, label %no_exit.backedge, label %return
+
+return: ; preds = %then, %endif
+ ret int %tmp.13
+}