1 ; PR28705 2 ; RUN: opt < %s -indvars -S | FileCheck %s 3 4 ; Check IndVarSimplify replaces the exitval use of the induction var "%inc.i.i" 5 ; with "%.sroa.speculated + 1". 6 ; 7 ; CHECK-LABEL: @foo( 8 ; CHECK: %[[EXIT:.+]] = sub i32 %.sroa.speculated, -1 9 ; CHECK: %DB.sroa.9.0.lcssa = phi i32 [ 1, %entry ], [ %[[EXIT]], %loopexit ] 10 ; 11 define void @foo(i32 %sub.ptr.div.i, i8* %ref.i1174) local_unnamed_addr { 12 entry: 13 %cmp.i1137 = icmp ugt i32 %sub.ptr.div.i, 3 14 %.sroa.speculated = select i1 %cmp.i1137, i32 3, i32 %sub.ptr.div.i 15 %cmp6483126 = icmp eq i32 %.sroa.speculated, 0 16 br i1 %cmp6483126, label %XZ.exit, label %for.body650.lr.ph 17 18 for.body650.lr.ph: 19 br label %for.body650 20 21 loopexit: 22 %inc.i.i.lcssa = phi i32 [ %inc.i.i, %for.body650 ] 23 br label %XZ.exit 24 25 XZ.exit: 26 %DB.sroa.9.0.lcssa = phi i32 [ 1, %entry ], [ %inc.i.i.lcssa, %loopexit ] 27 br label %end 28 29 for.body650: 30 %iv = phi i32 [ 0, %for.body650.lr.ph ], [ %inc655, %for.body650 ] 31 %iv2 = phi i32 [ 1, %for.body650.lr.ph ], [ %inc.i.i, %for.body650 ] 32 %arrayidx.i.i1105 = getelementptr inbounds i8, i8* %ref.i1174, i32 %iv2 33 store i8 7, i8* %arrayidx.i.i1105, align 1 34 %inc.i.i = add i32 %iv2, 1 35 %inc655 = add i32 %iv, 1 36 %cmp648 = icmp eq i32 %inc655, %.sroa.speculated 37 br i1 %cmp648, label %loopexit, label %for.body650 38 39 end: 40 ret void 41 } 42
