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| author | Chris Lattner <sabre@nondot.org> | 2005-08-04 22:49:32 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2005-08-04 22:49:32 +0000 |
| commit | f065f05397d0a46482f3dd1ebad31cb2d27bd236 (patch) | |
| tree | 21adf02f44b011311197a70e545737225b872b7a /test/Transforms | |
| parent | 26d91f16464db56283087176a73981048331dd2d (diff) | |
| download | external_llvm-f065f05397d0a46482f3dd1ebad31cb2d27bd236.zip external_llvm-f065f05397d0a46482f3dd1ebad31cb2d27bd236.tar.gz external_llvm-f065f05397d0a46482f3dd1ebad31cb2d27bd236.tar.bz2 | |
add a testcase nate requested
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22663 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/Transforms')
| -rw-r--r-- | test/Transforms/CondProp/phisimplify.ll | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/test/Transforms/CondProp/phisimplify.ll b/test/Transforms/CondProp/phisimplify.ll new file mode 100644 index 0000000..818bcab --- /dev/null +++ b/test/Transforms/CondProp/phisimplify.ll @@ -0,0 +1,33 @@ +; RUN: llvm-as < %s | opt -condprop | llvm-dis | not grep phi + +int %test(uint %C, bool %Val) { + switch uint %C, label %T1 [ + uint 4, label %T2 + uint 17, label %T3 + ] +T1: + call void %a() + br label %Cont +T2: + call void %b() + br label %Cont +T3: + call void %c() + br label %Cont + +Cont: + ;; PHI becomes dead after threading T2 + %C2 = phi bool [%Val, %T1], [true, %T2], [%Val, %T3] + br bool %C2, label %L2, label %F2 +L2: + call void %d() + ret int 17 +F2: + call void %e() + ret int 1 +} +declare void %a() +declare void %b() +declare void %c() +declare void %d() +declare void %e() |