; RUN: opt < %s -scalar-evolution -analyze | grep "Loop %bb3: backedge-taken count is (-1 + %n)" ; We don't want to use a max in the trip count expression in ; this testcase. define void @foo(i32 %n, i32* %p, i32* %q) nounwind { entry: icmp sgt i32 %n, 0 br i1 %0, label %bb, label %return bb: load i32* %q, align 4 icmp eq i32 %1, 0 br i1 %2, label %return, label %bb3.preheader bb3.preheader: br label %bb3 bb3: %i.0 = phi i32 [ %7, %bb3 ], [ 0, %bb3.preheader ] getelementptr i32* %p, i32 %i.0 load i32* %3, align 4 add i32 %4, 1 getelementptr i32* %p, i32 %i.0 store i32 %5, i32* %6, align 4 add i32 %i.0, 1 icmp slt i32 %7, %n br i1 %8, label %bb3, label %return.loopexit return.loopexit: br label %return return: ret void }