1 ; RUN: opt < %s -loop-vectorize -force-vector-width=4 -S | FileCheck %s 2 3 target datalayout = "e-m:e-i64:64-i128:128-n32:64-S128" 4 5 ; This testcase causes SCEV to return a pointer-typed exit value. 6 7 ; CHECK: @f 8 ; Expect that the pointer indvar has been converted into an integer indvar. 9 ; CHECK: %index.next = add i64 %index, 4 10 define i32 @f(i32* readonly %a, i32* readnone %b) #0 { 11 entry: 12 %cmp.6 = icmp ult i32* %a, %b 13 br i1 %cmp.6, label %while.body.preheader, label %while.end 14 15 while.body.preheader: ; preds = %entry 16 br label %while.body 17 18 while.body: ; preds = %while.body.preheader, %while.body 19 %a.pn = phi i32* [ %incdec.ptr8, %while.body ], [ %a, %while.body.preheader ] 20 %acc.07 = phi i32 [ %add, %while.body ], [ 0, %while.body.preheader ] 21 %incdec.ptr8 = getelementptr inbounds i32, i32* %a.pn, i64 1 22 %0 = load i32, i32* %incdec.ptr8, align 1 23 %add = add nuw nsw i32 %0, %acc.07 24 %exitcond = icmp eq i32* %incdec.ptr8, %b 25 br i1 %exitcond, label %while.cond.while.end_crit_edge, label %while.body 26 27 while.cond.while.end_crit_edge: ; preds = %while.body 28 %add.lcssa = phi i32 [ %add, %while.body ] 29 br label %while.end 30 31 while.end: ; preds = %while.cond.while.end_crit_edge, %entry 32 %acc.0.lcssa = phi i32 [ %add.lcssa, %while.cond.while.end_crit_edge ], [ 0, %entry ] 33 ret i32 %acc.0.lcssa 34 } 35
