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/LoopStrengthReduce/2005-08-15-AddRecIV.ll b/test/Transforms/LoopStrengthReduce/2005-08-15-AddRecIV.ll
new file mode 100644
index 0000000..b210405
--- /dev/null
+++ b/test/Transforms/LoopStrengthReduce/2005-08-15-AddRecIV.ll
@@ -0,0 +1,77 @@
+; RUN: llvm-upgrade < %s | llvm-as | opt -loop-reduce -disable-output
+
+void %try_swap() {
+entry:
+ br bool false, label %cond_continue.0.i, label %cond_false.0.i
+
+cond_false.0.i: ; preds = %entry
+ ret void
+
+cond_continue.0.i: ; preds = %entry
+ br bool false, label %cond_continue.1.i, label %cond_false.1.i
+
+cond_false.1.i: ; preds = %cond_continue.0.i
+ ret void
+
+cond_continue.1.i: ; preds = %cond_continue.0.i
+ br bool false, label %endif.3.i, label %else.0.i
+
+endif.3.i: ; preds = %cond_continue.1.i
+ br bool false, label %my_irand.exit82, label %endif.0.i62
+
+else.0.i: ; preds = %cond_continue.1.i
+ ret void
+
+endif.0.i62: ; preds = %endif.3.i
+ ret void
+
+my_irand.exit82: ; preds = %endif.3.i
+ br bool false, label %else.2, label %then.4
+
+then.4: ; preds = %my_irand.exit82
+ ret void
+
+else.2: ; preds = %my_irand.exit82
+ br bool false, label %find_affected_nets.exit, label %loopentry.1.i107.outer.preheader
+
+loopentry.1.i107.outer.preheader: ; preds = %else.2
+ ret void
+
+find_affected_nets.exit: ; preds = %else.2
+ br bool false, label %save_region_occ.exit, label %loopentry.1
+
+save_region_occ.exit: ; preds = %find_affected_nets.exit
+ br bool false, label %no_exit.1.preheader, label %loopexit.1
+
+loopentry.1: ; preds = %find_affected_nets.exit
+ ret void
+
+no_exit.1.preheader: ; preds = %save_region_occ.exit
+ ret void
+
+loopexit.1: ; preds = %save_region_occ.exit
+ br bool false, label %then.10, label %loopentry.3
+
+then.10: ; preds = %loopexit.1
+ ret void
+
+loopentry.3: ; preds = %endif.16, %loopexit.1
+ %indvar342 = phi uint [ %indvar.next343, %endif.16 ], [ 0, %loopexit.1 ] ; <uint> [#uses=2]
+ br bool false, label %loopexit.3, label %endif.16
+
+endif.16: ; preds = %loopentry.3
+ %indvar.next343 = add uint %indvar342, 1 ; <uint> [#uses=1]
+ br label %loopentry.3
+
+loopexit.3: ; preds = %loopentry.3
+ br label %loopentry.4
+
+loopentry.4: ; preds = %loopentry.4, %loopexit.3
+ %indvar340 = phi uint [ 0, %loopexit.3 ], [ %indvar.next341, %loopentry.4 ] ; <uint> [#uses=2]
+ %tmp. = add uint %indvar340, %indvar342 ; <uint> [#uses=1]
+ %tmp.526 = load int** null ; <int*> [#uses=1]
+ %tmp.528 = getelementptr int* %tmp.526, uint %tmp. ; <int*> [#uses=1]
+ store int 0, int* %tmp.528
+ %indvar.next341 = add uint %indvar340, 1 ; <uint> [#uses=1]
+ br label %loopentry.4
+}