; NOTE: Assertions have been autogenerated by utils/update_analyze_test_checks.py ; RUN: opt < %s -analyze -enable-new-pm=0 -scalar-evolution -scalar-evolution-classify-expressions=0 | FileCheck %s ; RUN: opt < %s -disable-output "-passes=print" -scalar-evolution-classify-expressions=0 2>&1 | FileCheck %s ; ScalarEvolution should be able to compute a loop exit value for %indvar.i8. define void @another_count_down_signed(double* %d, i64 %n) nounwind { ; CHECK-LABEL: 'another_count_down_signed' ; CHECK-NEXT: Determining loop execution counts for: @another_count_down_signed ; CHECK-NEXT: Loop %loop: backedge-taken count is (-11 + %n) ; CHECK-NEXT: Loop %loop: max backedge-taken count is -1 ; CHECK-NEXT: Loop %loop: Predicated backedge-taken count is (-11 + %n) ; CHECK-NEXT: Predicates: ; CHECK: Loop %loop: Trip multiple is 1 ; entry: br label %loop loop: ; preds = %loop, %entry %indvar = phi i64 [ %n, %entry ], [ %indvar.next, %loop ] ; [#uses=4] %s0 = shl i64 %indvar, 8 ; [#uses=1] %indvar.i8 = ashr i64 %s0, 8 ; [#uses=1] %t0 = getelementptr double, double* %d, i64 %indvar.i8 ; [#uses=2] %t1 = load double, double* %t0 ; [#uses=1] %t2 = fmul double %t1, 1.000000e-01 ; [#uses=1] store double %t2, double* %t0 %indvar.next = sub i64 %indvar, 1 ; [#uses=2] %exitcond = icmp eq i64 %indvar.next, 10 ; [#uses=1] br i1 %exitcond, label %return, label %loop return: ; preds = %loop ret void }