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1; RUN: llc < %s -verify-machineinstrs2;3; When BRCOND is constant-folded to BR, make sure that PHI nodes don't get4; 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_(ptr %__first, ptr %__last, i64 %__depth_limit) nounwind ssp {10entry:11 br i1 undef, label %bb1, label %bb212 13bb1: ; preds = %entry14 ret void15 16bb2: ; preds = %entry17 br label %bb2.outer.i18 19bb2.outer.i: ; preds = %bb9.i, %bb220 br i1 undef, label %bb1.i, label %bb5.preheader.i21 22bb1.i: ; preds = %bb1.i, %bb2.outer.i23 %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, ptr undef, i64 %tmp ; <ptr> [#uses=0]26 br i1 undef, label %bb1.i, label %bb5.preheader.i27 28bb5.preheader.i: ; preds = %bb1.i, %bb2.outer.i29 br label %bb5.i30 31bb5.i: ; preds = %bb5.i, %bb5.preheader.i32 br i1 undef, label %bb5.i, label %bb7.i633 34bb7.i6: ; preds = %bb5.i35 br i1 undef, label %bb9.i, label %_ZSt21__unguarded_partitionIPdd17less_than_functorET_S2_S2_T0_T1_.exit36 37bb9.i: ; preds = %bb7.i638 br label %bb2.outer.i39 40_ZSt21__unguarded_partitionIPdd17less_than_functorET_S2_S2_T0_T1_.exit: ; preds = %bb7.i641 unreachable42}43