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Diffstat (limited to 'test/Analysis/ScalarEvolution/2008-11-18-Stride2.ll')
-rw-r--r-- | test/Analysis/ScalarEvolution/2008-11-18-Stride2.ll | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/test/Analysis/ScalarEvolution/2008-11-18-Stride2.ll b/test/Analysis/ScalarEvolution/2008-11-18-Stride2.ll new file mode 100644 index 0000000..a8db01e --- /dev/null +++ b/test/Analysis/ScalarEvolution/2008-11-18-Stride2.ll @@ -0,0 +1,30 @@ +; RUN: llvm-as < %s | opt -analyze -scalar-evolution |& grep {/u 3} + +define i32 @f(i32 %x) nounwind readnone { +entry: + %0 = icmp ugt i32 %x, 999 ; <i1> [#uses=1] + br i1 %0, label %bb2, label %bb.nph + +bb.nph: ; preds = %entry + br label %bb + +bb: ; preds = %bb.nph, %bb1 + %indvar = phi i32 [ 0, %bb.nph ], [ %indvar.next, %bb1 ] ; <i32> [#uses=2] + %tmp = mul i32 %indvar, 3 ; <i32> [#uses=1] + %x_addr.04 = add i32 %tmp, %x ; <i32> [#uses=1] + %1 = add i32 %x_addr.04, 3 ; <i32> [#uses=2] + br label %bb1 + +bb1: ; preds = %bb + %2 = icmp ugt i32 %1, 999 ; <i1> [#uses=1] + %indvar.next = add i32 %indvar, 1 ; <i32> [#uses=1] + br i1 %2, label %bb1.bb2_crit_edge, label %bb + +bb1.bb2_crit_edge: ; preds = %bb1 + %.lcssa = phi i32 [ %1, %bb1 ] ; <i32> [#uses=1] + br label %bb2 + +bb2: ; preds = %bb1.bb2_crit_edge, %entry + %x_addr.0.lcssa = phi i32 [ %.lcssa, %bb1.bb2_crit_edge ], [ %x, %entry ] ; <i32> [#uses=1] + ret i32 %x_addr.0.lcssa +} |