; RUN: opt -S -passes=loop-vectorize < %s | FileCheck %s 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-S128" @a = global i32* null, align 8 @b = global i32* null, align 8 @c = global i32* null, align 8 ; Don't create an exponetial IR for the edge masks needed when if-converting ; this code. ; PR16472 ; CHECK-NOT: %6000000 = define void @_Z3fn4i(i32 %p1) { entry: %cmp88 = icmp sgt i32 %p1, 0 br i1 %cmp88, label %for.body.lr.ph, label %for.end for.body.lr.ph: %0 = load i32*, i32** @b, align 8 %1 = load i32*, i32** @a, align 8 %2 = load i32*, i32** @c, align 8 br label %for.body for.body: %indvars.iv = phi i64 [ 0, %for.body.lr.ph ], [ %indvars.iv.next, %_ZL3fn3ii.exit58 ] %arrayidx = getelementptr inbounds i32, i32* %0, i64 %indvars.iv %3 = load i32, i32* %arrayidx, align 4 %4 = trunc i64 %indvars.iv to i32 %and.i = and i32 %4, 1 %tobool.i.i = icmp eq i32 %and.i, 0 br i1 %tobool.i.i, label %if.end.i, label %if.then.i if.then.i: %and.i.i = lshr i32 %3, 2 %and.lobit.i.i = and i32 %and.i.i, 1 %5 = xor i32 %and.lobit.i.i, 1 %or.i.i = or i32 %5, %3 %cmp.i = icmp sgt i32 %or.i.i, 0 %conv.i = zext i1 %cmp.i to i32 br label %if.end.i if.end.i: %tobool.i87 = phi i1 [ true, %if.then.i ], [ false, %for.body ] %p1.addr.0.i = phi i32 [ %conv.i, %if.then.i ], [ %3, %for.body ] %6 = trunc i64 %indvars.iv to i32 %and1.i = and i32 %6, 7 %tobool2.i = icmp eq i32 %and1.i, 0 br i1 %tobool2.i, label %if.end7.i, label %if.then3.i if.then3.i: %p1.addr.0.lobit.i = lshr i32 %p1.addr.0.i, 31 %and6.i = and i32 %p1.addr.0.i, 1 %or.i = or i32 %p1.addr.0.lobit.i, %and6.i br label %if.end7.i if.end7.i: %p1.addr.1.i = phi i32 [ %or.i, %if.then3.i ], [ %p1.addr.0.i, %if.end.i ] br i1 %tobool.i87, label %if.then10.i, label %if.end13.i if.then10.i: %cmp11.i = icmp sgt i32 %p1.addr.1.i, 0 %conv12.i = zext i1 %cmp11.i to i32 br label %if.end13.i if.end13.i: %p1.addr.2.i = phi i32 [ %conv12.i, %if.then10.i ], [ %p1.addr.1.i, %if.end7.i ] br i1 %tobool.i.i, label %_Z3fn2iii.exit, label %if.then16.i if.then16.i: %and17.i = lshr i32 %p1.addr.2.i, 3 %and17.lobit.i = and i32 %and17.i, 1 br label %_Z3fn2iii.exit _Z3fn2iii.exit: %p1.addr.3.i = phi i32 [ %and17.lobit.i, %if.then16.i ], [ %p1.addr.2.i, %if.end13.i ] %7 = trunc i64 %indvars.iv to i32 %shr.i = ashr i32 %7, 1 %and.i18.i = and i32 %shr.i, 1 %tobool.i19.i = icmp ne i32 %and.i18.i, 0 br i1 %tobool.i19.i, label %if.then.i20.i, label %if.end.i.i if.then.i20.i: %cmp.i.i = icmp sgt i32 %p1.addr.3.i, 0 %conv.i.i = zext i1 %cmp.i.i to i32 br label %if.end.i.i if.end.i.i: %p1.addr.0.i21.i = phi i32 [ %conv.i.i, %if.then.i20.i ], [ %p1.addr.3.i, %_Z3fn2iii.exit ] %and1.i.i = and i32 %shr.i, 7 %tobool2.i.i = icmp eq i32 %and1.i.i, 0 br i1 %tobool2.i.i, label %if.end7.i.i, label %if.then3.i.i if.then3.i.i: %p1.addr.0.lobit.i.i = lshr i32 %p1.addr.0.i21.i, 31 %and6.i.i = and i32 %p1.addr.0.i21.i, 1 %or.i22.i = or i32 %p1.addr.0.lobit.i.i, %and6.i.i br label %if.end7.i.i if.end7.i.i: %p1.addr.1.i.i = phi i32 [ %or.i22.i, %if.then3.i.i ], [ %p1.addr.0.i21.i, %if.end.i.i ] br i1 %tobool.i19.i, label %if.then10.i.i, label %if.end13.i.i if.then10.i.i: %cmp11.i.i = icmp sgt i32 %p1.addr.1.i.i, 0 %conv12.i.i = zext i1 %cmp11.i.i to i32 br label %if.end13.i.i if.end13.i.i: %p1.addr.2.i.i = phi i32 [ %conv12.i.i, %if.then10.i.i ], [ %p1.addr.1.i.i, %if.end7.i.i ] %and14.i.i = and i32 %shr.i, 5 %tobool15.i.i = icmp eq i32 %and14.i.i, 0 br i1 %tobool15.i.i, label %_Z3fn2iii.exit.i, label %if.then16.i.i if.then16.i.i: %and17.i.i = lshr i32 %p1.addr.2.i.i, 3 %and17.lobit.i.i = and i32 %and17.i.i, 1 br label %_Z3fn2iii.exit.i _Z3fn2iii.exit.i: %p1.addr.3.i.i = phi i32 [ %and17.lobit.i.i, %if.then16.i.i ], [ %p1.addr.2.i.i, %if.end13.i.i ] %8 = trunc i64 %indvars.iv to i32 %tobool.i11.i = icmp eq i32 %8, 0 br i1 %tobool.i11.i, label %_ZL3fn3ii.exit, label %if.then.i15.i if.then.i15.i: %and.i12.i = lshr i32 %p1.addr.3.i.i, 2 %and.lobit.i13.i = and i32 %and.i12.i, 1 %9 = xor i32 %and.lobit.i13.i, 1 %or.i14.i = or i32 %9, %p1.addr.3.i.i br label %_ZL3fn3ii.exit _ZL3fn3ii.exit: %p1.addr.0.i16.i = phi i32 [ %or.i14.i, %if.then.i15.i ], [ %p1.addr.3.i.i, %_Z3fn2iii.exit.i ] %arrayidx2 = getelementptr inbounds i32, i32* %1, i64 %indvars.iv store i32 %p1.addr.0.i16.i, i32* %arrayidx2, align 4 %arrayidx4 = getelementptr inbounds i32, i32* %0, i64 %indvars.iv %10 = load i32, i32* %arrayidx4, align 4 br i1 %tobool.i.i, label %_Z3fn1ii.exit.i26, label %if.then.i.i21 if.then.i.i21: %and.i.i18 = lshr i32 %10, 2 %and.lobit.i.i19 = and i32 %and.i.i18, 1 %11 = xor i32 %and.lobit.i.i19, 1 %or.i.i20 = or i32 %11, %10 br label %_Z3fn1ii.exit.i26 _Z3fn1ii.exit.i26: %p1.addr.0.i.i22 = phi i32 [ %or.i.i20, %if.then.i.i21 ], [ %10, %_ZL3fn3ii.exit ] br i1 %tobool.i87, label %if.then.i63, label %if.end.i67 if.then.i63: %cmp.i61 = icmp sgt i32 %p1.addr.0.i.i22, 0 %conv.i62 = zext i1 %cmp.i61 to i32 br label %if.end.i67 if.end.i67: %p1.addr.0.i64 = phi i32 [ %conv.i62, %if.then.i63 ], [ %p1.addr.0.i.i22, %_Z3fn1ii.exit.i26 ] br i1 %tobool2.i, label %if.end7.i73, label %if.then3.i71 if.then3.i71: %p1.addr.0.lobit.i68 = lshr i32 %p1.addr.0.i64, 31 %and6.i69 = and i32 %p1.addr.0.i64, 1 %or.i70 = or i32 %p1.addr.0.lobit.i68, %and6.i69 br label %if.end7.i73 if.end7.i73: %p1.addr.1.i72 = phi i32 [ %or.i70, %if.then3.i71 ], [ %p1.addr.0.i64, %if.end.i67 ] br i1 %tobool.i87, label %if.then10.i76, label %if.end13.i80 if.then10.i76: %cmp11.i74 = icmp sgt i32 %p1.addr.1.i72, 0 %conv12.i75 = zext i1 %cmp11.i74 to i32 br label %if.end13.i80 if.end13.i80: %p1.addr.2.i77 = phi i32 [ %conv12.i75, %if.then10.i76 ], [ %p1.addr.1.i72, %if.end7.i73 ] br i1 %tobool.i.i, label %_Z3fn2iii.exit85, label %if.then16.i83 if.then16.i83: %and17.i81 = lshr i32 %p1.addr.2.i77, 3 %and17.lobit.i82 = and i32 %and17.i81, 1 br label %_Z3fn2iii.exit85 _Z3fn2iii.exit85: %p1.addr.3.i84 = phi i32 [ %and17.lobit.i82, %if.then16.i83 ], [ %p1.addr.2.i77, %if.end13.i80 ] br i1 %tobool.i19.i, label %if.then.i20.i29, label %if.end.i.i33 if.then.i20.i29: %cmp.i.i27 = icmp sgt i32 %p1.addr.3.i84, 0 %conv.i.i28 = zext i1 %cmp.i.i27 to i32 br label %if.end.i.i33 if.end.i.i33: %p1.addr.0.i21.i30 = phi i32 [ %conv.i.i28, %if.then.i20.i29 ], [ %p1.addr.3.i84, %_Z3fn2iii.exit85 ] br i1 %tobool2.i.i, label %if.end7.i.i39, label %if.then3.i.i37 if.then3.i.i37: %p1.addr.0.lobit.i.i34 = lshr i32 %p1.addr.0.i21.i30, 31 %and6.i.i35 = and i32 %p1.addr.0.i21.i30, 1 %or.i22.i36 = or i32 %p1.addr.0.lobit.i.i34, %and6.i.i35 br label %if.end7.i.i39 if.end7.i.i39: %p1.addr.1.i.i38 = phi i32 [ %or.i22.i36, %if.then3.i.i37 ], [ %p1.addr.0.i21.i30, %if.end.i.i33 ] br i1 %tobool.i19.i, label %if.then10.i.i42, label %if.end13.i.i46 if.then10.i.i42: %cmp11.i.i40 = icmp sgt i32 %p1.addr.1.i.i38, 0 %conv12.i.i41 = zext i1 %cmp11.i.i40 to i32 br label %if.end13.i.i46 if.end13.i.i46: %p1.addr.2.i.i43 = phi i32 [ %conv12.i.i41, %if.then10.i.i42 ], [ %p1.addr.1.i.i38, %if.end7.i.i39 ] br i1 %tobool15.i.i, label %_Z3fn2iii.exit.i52, label %if.then16.i.i49 if.then16.i.i49: %and17.i.i47 = lshr i32 %p1.addr.2.i.i43, 3 %and17.lobit.i.i48 = and i32 %and17.i.i47, 1 br label %_Z3fn2iii.exit.i52 _Z3fn2iii.exit.i52: %p1.addr.3.i.i50 = phi i32 [ %and17.lobit.i.i48, %if.then16.i.i49 ], [ %p1.addr.2.i.i43, %if.end13.i.i46 ] br i1 %tobool.i11.i, label %_ZL3fn3ii.exit58, label %if.then.i15.i56 if.then.i15.i56: %and.i12.i53 = lshr i32 %p1.addr.3.i.i50, 2 %and.lobit.i13.i54 = and i32 %and.i12.i53, 1 %12 = xor i32 %and.lobit.i13.i54, 1 %or.i14.i55 = or i32 %12, %p1.addr.3.i.i50 br label %_ZL3fn3ii.exit58 _ZL3fn3ii.exit58: %p1.addr.0.i16.i57 = phi i32 [ %or.i14.i55, %if.then.i15.i56 ], [ %p1.addr.3.i.i50, %_Z3fn2iii.exit.i52 ] %arrayidx7 = getelementptr inbounds i32, i32* %2, i64 %indvars.iv store i32 %p1.addr.0.i16.i57, i32* %arrayidx7, align 4 %indvars.iv.next = add i64 %indvars.iv, 1 %lftr.wideiv = trunc i64 %indvars.iv.next to i32 %exitcond = icmp ne i32 %lftr.wideiv, %p1 br i1 %exitcond, label %for.body, label %for.cond.for.end_crit_edge for.cond.for.end_crit_edge: br label %for.end for.end: ret void }