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Diffstat (limited to 'test/Transforms/InstCombine/2008-06-08-ICmpPHI.ll')
-rw-r--r-- | test/Transforms/InstCombine/2008-06-08-ICmpPHI.ll | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/test/Transforms/InstCombine/2008-06-08-ICmpPHI.ll b/test/Transforms/InstCombine/2008-06-08-ICmpPHI.ll new file mode 100644 index 000000000000..da63dd67453f --- /dev/null +++ b/test/Transforms/InstCombine/2008-06-08-ICmpPHI.ll @@ -0,0 +1,47 @@ +; RUN: llvm-as < %s | opt -instcombine | llvm-dis | grep {phi i32} | count 2 + +define void @test() nounwind { +entry: + br label %bb + +bb: ; preds = %bb16, %entry + %i.0 = phi i32 [ 0, %entry ], [ %indvar.next, %somebb ] ; <i32> [#uses=1] + %x.0 = phi i32 [ 37, %entry ], [ %tmp17, %somebb ] ; <i32> [#uses=1] + %tmp = tail call i32 (...)* @bork( ) nounwind ; <i32> [#uses=0] + %tmp1 = tail call i32 (...)* @bork( ) nounwind ; <i32> [#uses=0] + %tmp2 = tail call i32 (...)* @bork( ) nounwind ; <i32> [#uses=1] + %tmp3 = icmp eq i32 %tmp2, 0 ; <i1> [#uses=1] + br i1 %tmp3, label %bb7, label %bb5 + +bb5: ; preds = %bb + %tmp6 = tail call i32 (...)* @bork( ) nounwind ; <i32> [#uses=0] + br label %bb7 + +bb7: ; preds = %bb5, %bb + %tmp8 = tail call i32 (...)* @bork( ) nounwind ; <i32> [#uses=0] + %tmp9 = tail call i32 (...)* @bork( ) nounwind ; <i32> [#uses=0] + %tmp11 = icmp eq i32 %x.0, 37 ; <i1> [#uses=1] + br i1 %tmp11, label %bb14, label %bb16 + +bb14: ; preds = %bb7 + %tmp15 = tail call i32 (...)* @bar( ) nounwind ; <i32> [#uses=0] + br label %bb16 + +bb16: ; preds = %bb14, %bb7 + %tmp17 = tail call i32 (...)* @zap( ) nounwind ; <i32> [#uses=1] + %indvar.next = add i32 %i.0, 1 ; <i32> [#uses=2] + %exitcond = icmp eq i32 %indvar.next, 42 ; <i1> [#uses=1] + br i1 %exitcond, label %return, label %somebb + +somebb: + br label %bb + +return: ; preds = %bb16 + ret void +} + +declare i32 @bork(...) + +declare i32 @bar(...) + +declare i32 @zap(...) |