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| author | Chris Lattner <sabre@nondot.org> | 2003-10-05 21:11:57 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2003-10-05 21:11:57 +0000 |
| commit | 5b15deedc01babcf40d74e0c9e48efead6a888e2 (patch) | |
| tree | 5f8d275fca62f94213c7c906c8971c4f8df869e7 /test/Transforms | |
| parent | 24011be956e80e43d111d29cd53ca40e242e53df (diff) | |
| download | llvm-5b15deedc01babcf40d74e0c9e48efead6a888e2.tar.gz llvm-5b15deedc01babcf40d74e0c9e48efead6a888e2.tar.bz2 llvm-5b15deedc01babcf40d74e0c9e48efead6a888e2.tar.xz | |
new testcase
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8882 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/Transforms')
| -rw-r--r-- | test/Transforms/Mem2Reg/2003-10-05-DeadPHIInsertion.ll | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/test/Transforms/Mem2Reg/2003-10-05-DeadPHIInsertion.ll b/test/Transforms/Mem2Reg/2003-10-05-DeadPHIInsertion.ll new file mode 100644 index 0000000000..a9b87fd1f4 --- /dev/null +++ b/test/Transforms/Mem2Reg/2003-10-05-DeadPHIInsertion.ll @@ -0,0 +1,21 @@ +; Mem2reg should not insert dead PHI nodes! The naive algorithm inserts a PHI +; node in L3, even though there is no load of %A in anything dominated by L3. + +; RUN: llvm-as < %s | opt -mem2reg | llvm-dis | not grep phi + +void %test(int %B, bool %C) { + %A = alloca int + store int %B, int* %A + br bool %C, label %L1, label %L2 +L1: + store int %B, int* %A + %D = load int* %A + call void %test(int %D, bool false) + br label %L3 +L2: + %E = load int* %A + call void %test(int %E, bool true) + br label %L3 +L3: + ret void +} |