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Diffstat (limited to 'test/Transforms/LoopStrengthReduce/quadradic-exit-value.ll')
-rw-r--r-- | test/Transforms/LoopStrengthReduce/quadradic-exit-value.ll | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/test/Transforms/LoopStrengthReduce/quadradic-exit-value.ll b/test/Transforms/LoopStrengthReduce/quadradic-exit-value.ll new file mode 100644 index 0000000..c91f5cd --- /dev/null +++ b/test/Transforms/LoopStrengthReduce/quadradic-exit-value.ll @@ -0,0 +1,18 @@ +; RUN: opt < %s -analyze -iv-users | grep {Stride i64 {3,+,2}<%loop>:} + +; The value of %r is dependent on a polynomial iteration expression. + +define i64 @foo(i64 %n) { +entry: + br label %loop + +loop: + %indvar = phi i64 [ 0, %entry ], [ %indvar.next, %loop ] + %indvar.next = add i64 %indvar, 1 + %c = icmp eq i64 %indvar.next, %n + br i1 %c, label %exit, label %loop + +exit: + %r = mul i64 %indvar.next, %indvar.next + ret i64 %r +} |