llvm/test/CodeGen/PowerPC/pr24636.ll

; RUN: llc -verify-machineinstrs < %s | FileCheck %s
target datalayout = "e-m:e-i64:64-n32:64"
target triple = "powerpc64le-unknown-linux-gnu"

@c = external global i32, align 4
@b = external global [1 x i32], align 4

; Function Attrs: nounwind
define void @fn2() #0 align 4 {
  br i1 undef, label %.lr.ph, label %4

; We used to crash because a bad DAGCombine was creating i32-typed SETCC nodes,
; even when crbits are enabled.
; CHECK-LABEL: @fn2
; CHECK: blr

.lr.ph:                                           ; preds = %0
  br i1 undef, label %.lr.ph.split, label %.preheader

.preheader:                                       ; preds = %.preheader, %.lr.ph
  br i1 undef, label %.lr.ph.split, label %.preheader

.lr.ph.split:                                     ; preds = %.preheader, %.lr.ph
  br i1 undef, label %._crit_edge, label %.lr.ph.split.split

.lr.ph.split.split:                               ; preds = %.lr.ph.split.split, %.lr.ph.split
  %1 = phi i32 [ %2, %.lr.ph.split.split ], [ undef, %.lr.ph.split ]
  %2 = and i32 %1, and (i32 and (i32 and (i32 and (i32 and (i32 and (i32 and (i32 zext (i1 select (i1 icmp eq ([1 x i32]* bitcast (i32* @c to [1 x i32]*), [1 x i32]* @b), i1 true, i1 false) to i32), i32 zext (i1 select (i1 icmp eq ([1 x i32]* bitcast (i32* @c to [1 x i32]*), [1 x i32]* @b), i1 true, i1 false) to i32)), i32 zext (i1 select (i1 icmp eq ([1 x i32]* bitcast (i32* @c to [1 x i32]*), [1 x i32]* @b), i1 true, i1 false) to i32)), i32 zext (i1 select (i1 icmp eq ([1 x i32]* bitcast (i32* @c to [1 x i32]*), [1 x i32]* @b), i1 true, i1 false) to i32)), i32 zext (i1 select (i1 icmp eq ([1 x i32]* bitcast (i32* @c to [1 x i32]*), [1 x i32]* @b), i1 true, i1 false) to i32)), i32 zext (i1 select (i1 icmp eq ([1 x i32]* bitcast (i32* @c to [1 x i32]*), [1 x i32]* @b), i1 true, i1 false) to i32)), i32 zext (i1 select (i1 icmp eq ([1 x i32]* bitcast (i32* @c to [1 x i32]*), [1 x i32]* @b), i1 true, i1 false) to i32)), i32 zext (i1 select (i1 icmp eq ([1 x i32]* bitcast (i32* @c to [1 x i32]*), [1 x i32]* @b), i1 true, i1 false) to i32))
  %3 = icmp slt i32 undef, 4
  br i1 %3, label %.lr.ph.split.split, label %._crit_edge

._crit_edge:                                      ; preds = %.lr.ph.split.split, %.lr.ph.split
  %.lcssa = phi i32 [ undef, %.lr.ph.split ], [ %2, %.lr.ph.split.split ]
  br label %4

; <label>:4                                       ; preds = %._crit_edge, %0
  ret void
}

attributes #0 = { nounwind "target-cpu"="ppc64le" }