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authorDevang Patel <dpatel@apple.com>2007-08-17 22:02:15 +0000
committerDevang Patel <dpatel@apple.com>2007-08-17 22:02:15 +0000
commit5e98a990708907afcccae81190e8842a705d6dc9 (patch)
treeb3734899857f120a0cfff34240209187017a959c /test/Transforms/LoopIndexSplit/OneIterLoop3-2007-08-17.ll
parent9cee7a0d8e6a38a15b611f35432e2a3cd550fa24 (diff)
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Add loop index split tests.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41146 91177308-0d34-0410-b5e6-96231b3b80d8
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diff --git a/test/Transforms/LoopIndexSplit/OneIterLoop3-2007-08-17.ll b/test/Transforms/LoopIndexSplit/OneIterLoop3-2007-08-17.ll
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+; Loop is elimianted. Save last value assignments, including induction variable.
+; RUN: llvm-as < %s | opt -loop-index-split -disable-output -stats |& \
+; RUN: grep "loop-index-split" | count 1
+
+declare i32 @foo(i32)
+declare i32 @bar(i32, i32)
+
+define void @foobar(i32 %a, i32 %b) {
+entry:
+ br label %bb
+
+bb: ; preds = %cond_next, %entry
+ %i.01.0 = phi i32 [ 0, %entry ], [ %tmp8, %cond_next ] ; <i32> [#uses=3]
+ %tsum.16.0 = phi i32 [ 42, %entry ], [ %tsum.0, %cond_next ] ; <i32> [#uses=2]
+ %tmp1 = icmp eq i32 %i.01.0, 50 ; <i1> [#uses=1]
+ br i1 %tmp1, label %cond_true, label %cond_next
+
+cond_true: ; preds = %bb
+ %tmp4 = tail call i32 @foo( i32 %i.01.0 ) ; <i32> [#uses=1]
+ %tmp6 = add i32 %tmp4, %tsum.16.0 ; <i32> [#uses=1]
+ br label %cond_next
+
+cond_next: ; preds = %bb, %cond_true
+ %tsum.0 = phi i32 [ %tmp6, %cond_true ], [ %tsum.16.0, %bb ] ; <i32> [#uses=2]
+ %tmp8 = add i32 %i.01.0, 1 ; <i32> [#uses=3]
+ %tmp11 = icmp slt i32 %tmp8, 100 ; <i1> [#uses=1]
+ br i1 %tmp11, label %bb, label %bb14
+
+bb14: ; preds = %cond_next
+ %tmp8.lcssa = phi i32 [ %tmp8, %cond_next ] ; <i32> [#uses=1]
+ %tsum.0.lcssa = phi i32 [ %tsum.0, %cond_next ] ; <i32> [#uses=1]
+ %tmp17 = tail call i32 @bar( i32 %tmp8.lcssa, i32 %tsum.0.lcssa ) ; <i32> [#uses=0]
+ ret void
+}
+