llvm/llvm/test/Transforms/GVN/PRE/2017-10-16-LoadPRECrash.ll

; RUN: opt -S -passes=gvn -enable-load-pre < %s | FileCheck %s

target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"

%ArrayImpl = type { i64, ptr addrspace(100), [1 x i64], [1 x i64], [1 x i64], i64, i64, ptr addrspace(100), ptr addrspace(100), i8, i64 }

; Function Attrs: readnone
declare ptr @getaddr_ArrayImpl(ptr addrspace(100)) #0

; Function Attrs: readnone
declare ptr @getaddr_i64(ptr addrspace(100)) #0

; Make sure that the test compiles without a crash.
; Bug https://bugs.llvm.org/show_bug.cgi?id=34937

define hidden void @wrapon_fn173() {

; CHECK-LABEL: @wrapon_fn173
; CHECK:       entry:
; CHECK-NEXT:    call ptr @getaddr_ArrayImpl(ptr addrspace(100) undef)
; CHECK-NEXT:    %.pre = load ptr addrspace(100), ptr null, align 8
; CHECK-NEXT:    br label %loop
; CHECK:       loop:
; CHECK-NEXT:    call ptr @getaddr_i64(ptr addrspace(100) %.pre)
; CHECK-NEXT:    br label %loop

entry:
  %0 = call ptr @getaddr_ArrayImpl(ptr addrspace(100) undef)
  br label %loop

loop:
  %1 = call ptr @getaddr_ArrayImpl(ptr addrspace(100) undef)
  %2 = load ptr addrspace(100), ptr null, align 8
  %3 = call ptr @getaddr_i64(ptr addrspace(100) %2)
  br label %loop
}

attributes #0 = { readnone }