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path: root/test/Transforms/LoopVectorize/induction.ll
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; RUN: opt < %s -loop-vectorize -force-vector-unroll=1 -force-vector-width=2 -S | FileCheck %s

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-n8:16:32:64-S128"

; Make sure that we can handle multiple integer induction variables.
; CHECK: multi_int_induction
; CHECK: vector.body:
; CHECK:  %index = phi i64 [ 0, %vector.ph ], [ %index.next, %vector.body ]
; CHECK:  %normalized.idx = sub i64 %index, 0
; CHECK:  %[[VAR:.*]] = trunc i64 %normalized.idx to i32
; CHECK:  %offset.idx = add i32 190, %[[VAR]]
define void @multi_int_induction(i32* %A, i32 %N) {
for.body.lr.ph:
  br label %for.body

for.body:
  %indvars.iv = phi i64 [ 0, %for.body.lr.ph ], [ %indvars.iv.next, %for.body ]
  %count.09 = phi i32 [ 190, %for.body.lr.ph ], [ %inc, %for.body ]
  %arrayidx2 = getelementptr inbounds i32* %A, i64 %indvars.iv
  store i32 %count.09, i32* %arrayidx2, align 4
  %inc = add nsw i32 %count.09, 1
  %indvars.iv.next = add i64 %indvars.iv, 1
  %lftr.wideiv = trunc i64 %indvars.iv.next to i32
  %exitcond = icmp ne i32 %lftr.wideiv, %N
  br i1 %exitcond, label %for.body, label %for.end

for.end:
  ret void
}