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1; NOTE: Assertions have been autogenerated by utils/update_analyze_test_checks.py2; RUN: opt < %s -disable-output "-passes=print<scalar-evolution>" -scalar-evolution-classify-expressions=0 2>&1 | FileCheck %s3 4; ScalarEvolution should be able to compute a loop exit value for %indvar.i8.5 6define void @another_count_down_signed(ptr %d, i64 %n) nounwind {7; CHECK-LABEL: 'another_count_down_signed'8; CHECK-NEXT: Determining loop execution counts for: @another_count_down_signed9; CHECK-NEXT: Loop %loop: backedge-taken count is (-11 + %n)10; CHECK-NEXT: Loop %loop: constant max backedge-taken count is i64 -111; CHECK-NEXT: Loop %loop: symbolic max backedge-taken count is (-11 + %n)12; CHECK-NEXT: Loop %loop: Trip multiple is 113;14entry:15 br label %loop16 17loop: ; preds = %loop, %entry18 %indvar = phi i64 [ %n, %entry ], [ %indvar.next, %loop ] ; <i64> [#uses=4]19 %s0 = shl i64 %indvar, 8 ; <i64> [#uses=1]20 %indvar.i8 = ashr i64 %s0, 8 ; <i64> [#uses=1]21 %t0 = getelementptr double, ptr %d, i64 %indvar.i8 ; <ptr> [#uses=2]22 %t1 = load double, ptr %t0 ; <double> [#uses=1]23 %t2 = fmul double %t1, 1.000000e-01 ; <double> [#uses=1]24 store double %t2, ptr %t025 %indvar.next = sub i64 %indvar, 1 ; <i64> [#uses=2]26 %exitcond = icmp eq i64 %indvar.next, 10 ; <i1> [#uses=1]27 br i1 %exitcond, label %return, label %loop28 29return: ; preds = %loop30 ret void31}32