polly/test/CodeGen/scalar_codegen_crash.ll

; RUN: opt %loadPolly \
; RUN:     -polly-codegen -S < %s | FileCheck %s

; This test cases used to crash the scalar code generation. Check that we
; can generate code for it.

; CHECK: polly.start
@endposition = external global i32, align 4
@Bit = external global [0 x i32], align 4
@Init = external global [0 x i32], align 4

define void @maskgen() {
entry:
  br label %for.body

for.body:                                         ; preds = %for.body, %entry
  br i1 undef, label %for.end.310, label %for.body

for.end.310:                                      ; preds = %for.body
  store i32 undef, i32* @endposition, align 4
  %sub325 = sub i32 33, 0
  %0 = load i32, i32* getelementptr inbounds ([0 x i32], [0 x i32]* @Init, i64 0, i64 0), align 4
  br i1 false, label %for.cond.347.preheader, label %for.body.328.lr.ph

for.body.328.lr.ph:                               ; preds = %for.end.310
  %1 = sub i32 34, 0
  br label %for.body.328

for.body.328:                                     ; preds = %for.body.328, %for.body.328.lr.ph
  %indvars.iv546 = phi i64 [ %indvars.iv.next547, %for.body.328 ], [ 1, %for.body.328.lr.ph ]
  %2 = phi i32 [ %or331, %for.body.328 ], [ %0, %for.body.328.lr.ph ]
  %arrayidx330 = getelementptr inbounds [0 x i32], [0 x i32]* @Bit, i64 0, i64 %indvars.iv546
  %3 = load i32, i32* %arrayidx330, align 4
  %or331 = or i32 %3, %2
  %indvars.iv.next547 = add nuw nsw i64 %indvars.iv546, 1
  %lftr.wideiv = trunc i64 %indvars.iv.next547 to i32
  %exitcond14 = icmp eq i32 %lftr.wideiv, %1
  br i1 %exitcond14, label %for.cond.347.preheader, label %for.body.328

for.cond.347.preheader:                           ; preds = %for.cond.347.preheader, %for.body.328, %for.end.310
  br i1 undef, label %if.end.471, label %for.cond.347.preheader

if.end.471:                                       ; preds = %for.cond.347.preheader
  ret void
}