polly/test/ScopDetect/invalid-latch-conditions.ll

; RUN: opt %loadPolly -polly-process-unprofitable=false \
; RUN:     -polly-detect -analyze < %s | FileCheck %s

; RUN: opt %loadPolly -polly-allow-nonaffine-loops \
; RUN:     -polly-detect -analyze < %s | FileCheck %s --check-prefix=NALOOPS

; RUN: opt %loadPolly -polly-allow-nonaffine-loops -polly-detect -analyze \
; RUN:     -polly-process-unprofitable=false < %s | \
; RUN:     FileCheck %s --check-prefix=PROFIT

; The latch conditions of the outer loop are not affine, thus the loop cannot
; handled by the domain generation and needs to be overapproximated.

; CHECK-NOT:  Valid
; NALOOPS:    Valid Region for Scop: for.body.6 => for.end.45
; PROFIT-NOT: Valid

; ModuleID = '/home/johannes/Downloads/bug.ll'
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"

; Function Attrs: nounwind uwtable
define void @kernel_reg_detect([6 x i32]* %path) #0 {
entry:
  br label %for.body.6

for.body.6:                                       ; preds = %for.inc.43, %for.body.6, %entry
  %indvars.iv9 = phi i64 [ %indvars.iv.next10, %for.body.6 ], [ 0, %for.inc.43 ], [ 0, %entry ]
  %indvars.iv.next10 = add nuw nsw i64 %indvars.iv9, 1
  %lftr.wideiv = trunc i64 %indvars.iv.next10 to i32
  %exitcond = icmp ne i32 %lftr.wideiv, 6
  br i1 %exitcond, label %for.body.6, label %for.inc.40

for.inc.40:                                       ; preds = %for.inc.40, %for.body.6
  %arrayidx28 = getelementptr inbounds [6 x i32], [6 x i32]* %path, i64 0, i64 0
  %tmp = load i32, i32* %arrayidx28, align 4
  %arrayidx36 = getelementptr inbounds [6 x i32], [6 x i32]* %path, i64 0, i64 0
  store i32 0, i32* %arrayidx36, align 4
  %exitcond22 = icmp ne i64 0, 6
  br i1 %exitcond22, label %for.inc.40, label %for.inc.43

for.inc.43:                                       ; preds = %for.inc.40
  %exitcond23 = icmp ne i32 0, 10000
  br i1 %exitcond23, label %for.body.6, label %for.end.45

for.end.45:                                       ; preds = %for.inc.43
  ret void
}