1; RUN: llc < %s -verify-machineinstrs 2; 3; When BRCOND is constant-folded to BR, make sure that PHI nodes don't get 4; spurious operands when the CFG is trimmed. 5; 6target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64" 7target triple = "x86_64-apple-darwin10.2" 8 9define fastcc void @_ZSt16__introsort_loopIPdl17less_than_functorEvT_S2_T0_T1_(double* %__first, double* %__last, i64 %__depth_limit) nounwind ssp { 10entry: 11 br i1 undef, label %bb1, label %bb2 12 13bb1: ; preds = %entry 14 ret void 15 16bb2: ; preds = %entry 17 br label %bb2.outer.i 18 19bb2.outer.i: ; preds = %bb9.i, %bb2 20 br i1 undef, label %bb1.i, label %bb5.preheader.i 21 22bb1.i: ; preds = %bb1.i, %bb2.outer.i 23 %indvar5.i = phi i64 [ %tmp, %bb1.i ], [ 0, %bb2.outer.i ] ; <i64> [#uses=1] 24 %tmp = add i64 %indvar5.i, 1 ; <i64> [#uses=2] 25 %scevgep.i = getelementptr double, double* undef, i64 %tmp ; <double*> [#uses=0] 26 br i1 undef, label %bb1.i, label %bb5.preheader.i 27 28bb5.preheader.i: ; preds = %bb1.i, %bb2.outer.i 29 br label %bb5.i 30 31bb5.i: ; preds = %bb5.i, %bb5.preheader.i 32 br i1 undef, label %bb5.i, label %bb7.i6 33 34bb7.i6: ; preds = %bb5.i 35 br i1 undef, label %bb9.i, label %_ZSt21__unguarded_partitionIPdd17less_than_functorET_S2_S2_T0_T1_.exit 36 37bb9.i: ; preds = %bb7.i6 38 br label %bb2.outer.i 39 40_ZSt21__unguarded_partitionIPdd17less_than_functorET_S2_S2_T0_T1_.exit: ; preds = %bb7.i6 41 unreachable 42} 43