1 ; RUN: opt < %s -analyze -scalar-evolution > %t 2 ; RUN: grep "sext i57 {0,+,199}<%bb> to i64" %t | count 1 3 ; RUN: grep "sext i59 {0,+,199}<%bb> to i64" %t | count 1 4 5 target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128" 6 target triple = "i386-apple-darwin9.6" 7 8 define i64 @foo(i64* nocapture %x, i64 %n) nounwind { 9 entry: 10 %t0 = icmp sgt i64 %n, 0 ; <i1> [#uses=1] 11 br i1 %t0, label %bb, label %return 12 13 bb: ; preds = %bb, %entry 14 %i.01 = phi i64 [ 0, %entry ], [ %indvar.next, %bb ] ; <i32> [#uses=2] 15 %t1 = shl i64 %i.01, 7 ; <i32> [#uses=1] 16 %t2 = ashr i64 %t1, 7 ; <i32> [#uses=1] 17 %s1 = shl i64 %i.01, 5 ; <i32> [#uses=1] 18 %s2 = ashr i64 %s1, 5 ; <i32> [#uses=1] 19 %t3 = getelementptr i64* %x, i64 %i.01 ; <i64*> [#uses=1] 20 store i64 0, i64* %t3, align 1 21 %indvar.next = add i64 %i.01, 199 ; <i32> [#uses=2] 22 %exitcond = icmp eq i64 %indvar.next, %n ; <i1> [#uses=1] 23 br i1 %exitcond, label %return, label %bb 24 25 return: ; preds = %bb, %entry 26 %p = phi i64 [ 0, %entry ], [ %t2, %bb ] 27 %q = phi i64 [ 0, %entry ], [ %s2, %bb ] 28 %v = xor i64 %p, %q 29 ret i64 %v 30 } 31
