diff options
Diffstat (limited to 'test/Analysis')
-rw-r--r-- | test/Analysis/ScalarEvolution/trip-count10.ll | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/test/Analysis/ScalarEvolution/trip-count10.ll b/test/Analysis/ScalarEvolution/trip-count10.ll index 2386cf4..546e1dc 100644 --- a/test/Analysis/ScalarEvolution/trip-count10.ll +++ b/test/Analysis/ScalarEvolution/trip-count10.ll @@ -105,3 +105,22 @@ bb2: retbb: ret void } + +; PHI nodes with all constant operands. + +; CHECK: Determining loop execution counts for: @constant_phi_operands +; CHECK: Loop %loop: backedge-taken count is 1 +; CHECK: Loop %loop: max backedge-taken count is 1 + +define void @constant_phi_operands() nounwind { +entry: + br label %loop + +loop: + %i = phi i64 [ 1, %loop ], [ 0, %entry ] + %exitcond = icmp eq i64 %i, 1 + br i1 %exitcond, label %return, label %loop + +return: + ret void +} |