1 ; The induction variable canonicalization pass shouldn't leave dead
2 ; instructions laying around!
4 ; RUN: llvm-upgrade < %s | llvm-as | opt -indvars | llvm-dis | \
5 ; RUN: not grep {#uses=0}
7 int %mul(int %x, int %y) {
11 tailrecurse: ; preds = %entry, %endif
12 %accumulator.tr = phi int [ %x, %entry ], [ %tmp.9, %endif ] ; <int> [#uses=2]
13 %y.tr = phi int [ %y, %entry ], [ %tmp.8, %endif ] ; <int> [#uses=2]
14 %tmp.1 = seteq int %y.tr, 0 ; <bool> [#uses=1]
15 br bool %tmp.1, label %return, label %endif
17 endif: ; preds = %tailrecurse
18 %tmp.8 = add int %y.tr, -1 ; <int> [#uses=1]
19 %tmp.9 = add int %accumulator.tr, %x ; <int> [#uses=1]
22 return: ; preds = %tailrecurse
23 ret int %accumulator.tr