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authorOwen Anderson <resistor@mac.com>2007-07-26 18:26:51 +0000
committerOwen Anderson <resistor@mac.com>2007-07-26 18:26:51 +0000
commit45537917eec15e5c3ef75c0ee2bf8963b02f3a54 (patch)
treed2b71eba112cbd230c44e07b8b1ef1f8da96ad89 /test/Transforms/GVN/2007-07-26-InterlockingLoops.ll
parent42000ef6c7bfd45989f6c76aa9d5be418b8bea42 (diff)
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Fix a couple more bugs in the phi construction by pulling in code that does
almost the same things from LCSSA. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40540 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/Transforms/GVN/2007-07-26-InterlockingLoops.ll')
-rw-r--r--test/Transforms/GVN/2007-07-26-InterlockingLoops.ll30
1 files changed, 30 insertions, 0 deletions
diff --git a/test/Transforms/GVN/2007-07-26-InterlockingLoops.ll b/test/Transforms/GVN/2007-07-26-InterlockingLoops.ll
new file mode 100644
index 0000000..1dd1479
--- /dev/null
+++ b/test/Transforms/GVN/2007-07-26-InterlockingLoops.ll
@@ -0,0 +1,30 @@
+; RUN: llvm-as < %s | opt -gvn | llvm-dis | not grep {tmp17625 =}
+; RUN: llvm-as < %s | opt -gvn | llvm-dis | not grep {tmp17631 =}
+
+@last = external global [65 x i32*] ; <[65 x i32*]*> [#uses=1]
+
+define i32 @NextRootMove(i32 %wtm) {
+cond_next95: ; preds = %cond_true85, %cond_true79, %cond_true73, %bb68
+ %tmp17618 = load i32** getelementptr ([65 x i32*]* @last, i32 0, i32 1), align 4 ; <i32*> [#uses=0]
+ br label %cond_true116
+
+cond_true116: ; preds = %cond_true111
+ br i1 false, label %cond_true128, label %cond_true145
+
+cond_true128: ; preds = %cond_true121
+ %tmp17625 = load i32** getelementptr ([65 x i32*]* @last, i32 0, i32 1), align 4 ; <i32*> [#uses=0]
+ br i1 false, label %bb98.backedge, label %return.loopexit
+
+bb98.backedge: ; preds = %bb171, %cond_true145, %cond_true128
+ br label %cond_true116
+
+cond_true145: ; preds = %cond_false
+ %tmp17631 = load i32** getelementptr ([65 x i32*]* @last, i32 0, i32 1), align 4 ; <i32*> [#uses=0]
+ br i1 false, label %bb98.backedge, label %return.loopexit
+
+return.loopexit: ; preds = %bb171, %cond_true145, %cond_true128
+ br label %return
+
+return: ; preds = %return.loopexit, %cond_next95, %cond_true85
+ ret i32 0
+}