1 ; RUN: opt < %s -analyze -scalar-evolution | FileCheck %s
3 ; ScalarEvolution should be able to compute a loop exit value for %indvar.i8.
5 ; CHECK: sext{{.*}}trunc{{.*}}Exits: 11
7 define void @another_count_down_signed(double* %d, i64 %n) nounwind {
11 loop: ; preds = %loop, %entry
12 %indvar = phi i64 [ %n, %entry ], [ %indvar.next, %loop ] ; <i64> [#uses=4]
13 %s0 = shl i64 %indvar, 8 ; <i64> [#uses=1]
14 %indvar.i8 = ashr i64 %s0, 8 ; <i64> [#uses=1]
15 %t0 = getelementptr double, double* %d, i64 %indvar.i8 ; <double*> [#uses=2]
16 %t1 = load double, double* %t0 ; <double> [#uses=1]
17 %t2 = fmul double %t1, 1.000000e-01 ; <double> [#uses=1]
18 store double %t2, double* %t0
19 %indvar.next = sub i64 %indvar, 1 ; <i64> [#uses=2]
20 %exitcond = icmp eq i64 %indvar.next, 10 ; <i1> [#uses=1]
21 br i1 %exitcond, label %return, label %loop
23 return: ; preds = %loop