1 ; RUN: opt < %s -analyze -scalar-evolution -disable-output \
2 ; RUN: | grep {\{%d,+,\[^\{\}\]\*\}<bb>}
4 ; ScalarEvolution should be able to understand the loop and eliminate the casts.
6 define void @foo(i32* nocapture %d, i32 %n) nounwind {
8 %0 = icmp sgt i32 %n, 0 ; <i1> [#uses=1]
9 br i1 %0, label %bb.nph, label %return
11 bb.nph: ; preds = %entry
14 bb: ; preds = %bb1, %bb.nph
15 %i.02 = phi i32 [ %5, %bb1 ], [ 0, %bb.nph ] ; <i32> [#uses=2]
16 %p.01 = phi i8 [ %4, %bb1 ], [ -1, %bb.nph ] ; <i8> [#uses=2]
17 %1 = sext i8 %p.01 to i32 ; <i32> [#uses=1]
18 %2 = sext i32 %i.02 to i64 ; <i64> [#uses=1]
19 %3 = getelementptr i32* %d, i64 %2 ; <i32*> [#uses=1]
20 store i32 %1, i32* %3, align 4
21 %4 = add i8 %p.01, 1 ; <i8> [#uses=1]
22 %5 = add i32 %i.02, 1 ; <i32> [#uses=2]
26 %6 = icmp slt i32 %5, %n ; <i1> [#uses=1]
27 br i1 %6, label %bb, label %bb1.return_crit_edge
29 bb1.return_crit_edge: ; preds = %bb1
32 return: ; preds = %bb1.return_crit_edge, %entry