1 ; RUN: opt < %s -indvars -disable-output -stats -info-output-file - | FileCheck %s 2 ; Check that IndVarSimplify is not creating unnecessary canonical IVs 3 ; that will never be used. 4 ; CHECK-NOT: indvars 5 6 target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128" 7 8 @ue = external global i64 9 10 define i32 @foo() nounwind { 11 entry: 12 br label %bb38.i 13 14 bb14.i27: 15 %t0 = load i64* @ue, align 8 16 %t1 = sub i64 %t0, %i.0.i35 17 %t2 = add i64 %t1, 1 18 br i1 undef, label %bb15.i28, label %bb19.i31 19 20 bb15.i28: 21 br label %bb19.i31 22 23 bb19.i31: 24 %y.0.i = phi i64 [ %t2, %bb15.i28 ], [ %t2, %bb14.i27 ] 25 br label %bb35.i 26 27 bb35.i: 28 br i1 undef, label %bb37.i, label %bb14.i27 29 30 bb37.i: 31 %t3 = add i64 %i.0.i35, 1 32 br label %bb38.i 33 34 bb38.i: 35 %i.0.i35 = phi i64 [ 1, %entry ], [ %t3, %bb37.i ] 36 br label %bb35.i 37 } 38
