llvm/llvm/test/Transforms/NewGVN/2009-07-13-MemDepSortFail.ll

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 4
; RUN: opt < %s -passes=newgvn | llvm-dis
; PR4256
target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:32:32"
target triple = "i386-pc-linux-gnu"
  %llvm.dbg.anchor.type = type { i32, i32 }
  %struct.cset = type { ptr, i8, i8, i32, ptr }
  %struct.lmat = type { ptr, i32, ptr, ptr, ptr, ptr, ptr, ptr, i32, ptr, ptr, ptr, ptr, ptr }
  %struct.re_guts = type { ptr, ptr, ptr, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, ptr, ptr, i32, i32, i32, i32, [1 x i8] }

define ptr @lbackref(ptr %m, ptr %start, ptr %stop, i32 %startst, i32 %stopst, i32 %lev, i32 %rec) nounwind {
entry:
  br label %bb63

bb:		; preds = %bb63
  switch i32 0, label %bb62 [
  i32 268435456, label %bb2
  i32 805306368, label %bb9
  i32 -1610612736, label %bb51
  ]

bb2:		; preds = %bb
  br label %bb62

bb9:		; preds = %bb
  %0 = load i8, ptr %sp.1, align 1		; <i8> [#uses=0]
  br label %bb62

bb51:		; preds = %bb
  %1 = load i8, ptr %sp.1, align 1		; <i8> [#uses=0]
  ret ptr null

bb62:		; preds = %bb9, %bb2, %bb
  br label %bb63

bb63:		; preds = %bb84, %bb69, %bb62, %entry
  %sp.1 = phi ptr [ null, %bb62 ], [ %sp.1.lcssa, %bb84 ], [ %start, %entry ], [ %sp.1.lcssa, %bb69 ]		; <ptr> [#uses=3]
  br i1 false, label %bb, label %bb65

bb65:		; preds = %bb63
  %sp.1.lcssa = phi ptr [ %sp.1, %bb63 ]		; <ptr> [#uses=4]
  br i1 false, label %bb66, label %bb69

bb66:		; preds = %bb65
  ret ptr null

bb69:		; preds = %bb65
  switch i32 0, label %bb108.loopexit2.loopexit.loopexit [
  i32 1342177280, label %bb63
  i32 1476395008, label %bb84
  i32 1879048192, label %bb104
  i32 2013265920, label %bb93
  ]

bb84:		; preds = %bb69
  %2 = tail call ptr @lbackref(ptr %m, ptr %sp.1.lcssa, ptr %stop, i32 0, i32 %stopst, i32 0, i32 0) nounwind		; <ptr> [#uses=0]
  br label %bb63

bb93:		; preds = %bb69
  ret ptr null

bb104:		; preds = %bb69
  %sp.1.lcssa.lcssa33 = phi ptr [ %sp.1.lcssa, %bb69 ]		; <ptr> [#uses=0]
  unreachable

bb108.loopexit2.loopexit.loopexit:		; preds = %bb69
  ret ptr null
}