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authorChris Lattner <sabre@nondot.org>2004-03-15 00:08:49 +0000
committerChris Lattner <sabre@nondot.org>2004-03-15 00:08:49 +0000
commite94fd1963ddb1102bebd2f769158d087445d7cc8 (patch)
treeb6a9484538e6a9f5c69e0db87c3b25d0d426e2bc /test
parent5156c39d6419c891b3004da505487091c418bf63 (diff)
New testcase that causes the code extractor to generate bogus code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12404 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test')
-rw-r--r--test/Transforms/CodeExtractor/2004-03-14-DominanceProblem.ll34
1 files changed, 34 insertions, 0 deletions
diff --git a/test/Transforms/CodeExtractor/2004-03-14-DominanceProblem.ll b/test/Transforms/CodeExtractor/2004-03-14-DominanceProblem.ll
new file mode 100644
index 0000000000..5dffe4b5ad
--- /dev/null
+++ b/test/Transforms/CodeExtractor/2004-03-14-DominanceProblem.ll
@@ -0,0 +1,34 @@
+; RUN: llvm-as < %s | opt -loop-extract -disable-output
+; This testcase is failing the loop extractor because not all exit blocks
+; are dominated by all of the live-outs.
+
+implementation ; Functions:
+
+int %ab(int %alpha, int %beta) {
+entry:
+ br label %loopentry.1.preheader
+
+loopentry.1.preheader: ; preds = %then.1
+ br label %loopentry.1
+
+loopentry.1: ; preds = %loopentry.1.preheader, %no_exit.1
+ br bool false, label %no_exit.1, label %loopexit.0.loopexit1
+
+no_exit.1: ; preds = %loopentry.1
+ %tmp.53 = load int* null ; <int> [#uses=1]
+ br bool false, label %shortcirc_next.2, label %loopentry.1
+
+shortcirc_next.2: ; preds = %no_exit.1
+ %tmp.563 = call int %wins( int 0, int %tmp.53, int 3 ) ; <int> [#uses=0]
+ ret int 0
+
+loopexit.0.loopexit1: ; preds = %loopentry.1
+ br label %loopexit.0
+
+loopexit.0: ; preds = %loopexit.0.loopexit, %loopexit.0.loopexit1
+ ret int 0
+}
+
+declare int %wins(int, int, int)
+
+declare ushort %ab_code()