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| author | Chris Lattner <sabre@nondot.org> | 2003-03-05 21:34:35 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2003-03-05 21:34:35 +0000 |
| commit | a1040199e4363374112394da135784d42a557d51 (patch) | |
| tree | dba76689d2990f501dc0dbe7ae1576fbb690fe9e /test/Transforms/SimplifyCFG/PhiBlockMerge2.ll | |
| parent | 05ddff9b98e331202682eefc09520138cbd4c83a (diff) | |
| download | llvm-a1040199e4363374112394da135784d42a557d51.tar.gz llvm-a1040199e4363374112394da135784d42a557d51.tar.bz2 llvm-a1040199e4363374112394da135784d42a557d51.tar.xz | |
Add new testcase
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5701 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/Transforms/SimplifyCFG/PhiBlockMerge2.ll')
| -rw-r--r-- | test/Transforms/SimplifyCFG/PhiBlockMerge2.ll | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/test/Transforms/SimplifyCFG/PhiBlockMerge2.ll b/test/Transforms/SimplifyCFG/PhiBlockMerge2.ll new file mode 100644 index 0000000000..aecb6b9244 --- /dev/null +++ b/test/Transforms/SimplifyCFG/PhiBlockMerge2.ll @@ -0,0 +1,24 @@ +; Test merging of blocks that only have PHI nodes in them. This tests the case +; where the mergedinto block doesn't have any PHI nodes, and is in fact +; dominated by the block-to-be-eliminated +; +; RUN: if as < %s | opt -simplifycfg | dis | grep 'N:' +; RUN: then exit 1 +; RUN: else exit 0 +; RUN: fi +; + +int %test(bool %a, bool %b) { + br bool %b, label %N, label %Q +Q: + br label %N +N: + %W = phi int [0, %0], [1, %Q] + ; This block should be foldable into M + br label %M + +M: + %R = add int %W, 1 + ret int %R +} + |