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 ; 6 target 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" 7 target triple = "x86_64-apple-darwin10.2" 8 9 define fastcc void @_ZSt16__introsort_loopIPdl17less_than_functorEvT_S2_T0_T1_(double* %__first, double* %__last, i64 %__depth_limit) nounwind ssp { 10 entry: 11 br i1 undef, label %bb1, label %bb2 12 13 bb1: ; preds = %entry 14 ret void 15 16 bb2: ; preds = %entry 17 br label %bb2.outer.i 18 19 bb2.outer.i: ; preds = %bb9.i, %bb2 20 br i1 undef, label %bb1.i, label %bb5.preheader.i 21 22 bb1.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 28 bb5.preheader.i: ; preds = %bb1.i, %bb2.outer.i 29 br label %bb5.i 30 31 bb5.i: ; preds = %bb5.i, %bb5.preheader.i 32 br i1 undef, label %bb5.i, label %bb7.i6 33 34 bb7.i6: ; preds = %bb5.i 35 br i1 undef, label %bb9.i, label %_ZSt21__unguarded_partitionIPdd17less_than_functorET_S2_S2_T0_T1_.exit 36 37 bb9.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
