1; RUN: llc -verify-machineinstrs < %s | FileCheck %s 2target datalayout = "e-m:e-i64:64-n32:64" 3target triple = "powerpc64le-unknown-linux-gnu" 4 5@c = external unnamed_addr global i32, align 4 6@b = external global [1 x i32], align 4 7 8; Function Attrs: nounwind 9define void @fn2() #0 align 4 { 10 br i1 undef, label %.lr.ph, label %4 11 12; We used to crash because a bad DAGCombine was creating i32-typed SETCC nodes, 13; even when crbits are enabled. 14; CHECK-LABEL: @fn2 15; CHECK: blr 16 17.lr.ph: ; preds = %0 18 br i1 undef, label %.lr.ph.split, label %.preheader 19 20.preheader: ; preds = %.preheader, %.lr.ph 21 br i1 undef, label %.lr.ph.split, label %.preheader 22 23.lr.ph.split: ; preds = %.preheader, %.lr.ph 24 br i1 undef, label %._crit_edge, label %.lr.ph.split.split 25 26.lr.ph.split.split: ; preds = %.lr.ph.split.split, %.lr.ph.split 27 %1 = phi i32 [ %2, %.lr.ph.split.split ], [ undef, %.lr.ph.split ] 28 %cmp = icmp eq ptr @c, @b 29 %constexpr = select i1 %cmp, i1 true, i1 false 30 %constexpr1 = zext i1 %constexpr to i32 31 %constexpr2 = and i32 %constexpr1, %constexpr1 32 %constexpr3 = and i32 %constexpr2, %constexpr1 33 %constexpr4 = and i32 %constexpr3, %constexpr1 34 %constexpr5 = and i32 %constexpr4, %constexpr1 35 %constexpr6 = and i32 %constexpr5, %constexpr1 36 %constexpr7 = and i32 %constexpr6, %constexpr1 37 %constexpr8 = and i32 %constexpr7, %constexpr1 38 %2 = and i32 %1, %constexpr8 39 %3 = icmp slt i32 undef, 4 40 br i1 %3, label %.lr.ph.split.split, label %._crit_edge 41 42._crit_edge: ; preds = %.lr.ph.split.split, %.lr.ph.split 43 %.lcssa = phi i32 [ undef, %.lr.ph.split ], [ %2, %.lr.ph.split.split ] 44 br label %4 45 464: ; preds = %._crit_edge, %0 47 ret void 48} 49 50attributes #0 = { nounwind "target-cpu"="ppc64le" } 51 52