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1; RUN: llc < %s -verify-coalescing2; PR147323target 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"4target triple = "x86_64-apple-macosx10"5 6@c = common global i32 0, align 47@b = common global i32 0, align 48@a = common global i32 0, align 49@d = common global i32 0, align 410 11; This function creates an IMPLICIT_DEF with a long live range, even after12; ProcessImplicitDefs.13;14; The coalescer should be able to deal with all kinds of IMPLICIT_DEF live15; ranges, even if they are not common.16 17define void @f() nounwind uwtable ssp {18entry:19 %i = alloca i32, align 420 br label %for.cond21 22for.cond: ; preds = %for.inc34, %entry23 %i.0.load44 = phi i32 [ %inc35, %for.inc34 ], [ undef, %entry ]24 %pi.0 = phi ptr [ %pi.4, %for.inc34 ], [ undef, %entry ]25 %tobool = icmp eq i32 %i.0.load44, 026 br i1 %tobool, label %for.end36, label %for.body27 28for.body: ; preds = %for.cond29 store i32 0, ptr @c, align 430 br label %for.body231 32for.body2: ; preds = %for.body, %for.inc33 %i.0.load45 = phi i32 [ %i.0.load44, %for.body ], [ 0, %for.inc ]34 %tobool3 = icmp eq i32 %i.0.load45, 035 br i1 %tobool3, label %if.then10, label %if.then36 37if.then: ; preds = %for.body238 store i32 0, ptr %i, align 439 br label %for.body640 41for.body6: ; preds = %if.then, %for.body642 store i32 0, ptr %i, align 443 br i1 true, label %for.body6, label %for.inc44 45if.then10: ; preds = %for.body246 store i32 1, ptr @b, align 447 ret void48 49for.inc: ; preds = %for.body650 br i1 undef, label %for.body2, label %if.end3051 52while.condthread-pre-split: ; preds = %label.loopexit, %while.condthread-pre-split.lr.ph.lr.ph, %for.inc27.backedge53 %0 = phi i32 [ %inc28, %for.inc27.backedge ], [ %inc285863, %while.condthread-pre-split.lr.ph.lr.ph ], [ %inc2858, %label.loopexit ]54 %inc2060 = phi i32 [ %inc20, %for.inc27.backedge ], [ %a.promoted.pre, %while.condthread-pre-split.lr.ph.lr.ph ], [ %inc20, %label.loopexit ]55 br label %while.cond56 57while.cond: ; preds = %while.condthread-pre-split, %while.cond58 %p2.1.in = phi ptr [ %pi.3.ph, %while.cond ], [ %i, %while.condthread-pre-split ]59 br i1 %tobool19, label %while.end, label %while.cond60 61while.end: ; preds = %while.cond62 %inc20 = add nsw i32 %inc2060, 163 %tobool21 = icmp eq i32 %inc2060, 064 br i1 %tobool21, label %for.inc27.backedge, label %if.then2265 66for.inc27.backedge: ; preds = %while.end, %if.then2267 %inc28 = add nsw i32 %0, 168 store i32 %inc28, ptr @b, align 469 %tobool17 = icmp eq i32 %inc28, 070 br i1 %tobool17, label %for.inc27.if.end30.loopexit56_crit_edge, label %while.condthread-pre-split71 72if.then22: ; preds = %while.end73 %1 = load i16, ptr %p2.1.in, align 274 %tobool23 = icmp eq i16 %1, 075 br i1 %tobool23, label %for.inc27.backedge, label %label.loopexit76 77label.loopexit: ; preds = %if.then2278 store i32 %inc20, ptr @a, align 479 %inc2858 = add nsw i32 %0, 180 store i32 %inc2858, ptr @b, align 481 %tobool1759 = icmp eq i32 %inc2858, 082 br i1 %tobool1759, label %if.end30, label %while.condthread-pre-split83 84for.inc27.if.end30.loopexit56_crit_edge: ; preds = %for.inc27.backedge85 store i32 %inc20, ptr @a, align 486 br label %if.end3087 88if.end30: ; preds = %for.inc27.if.end30.loopexit56_crit_edge, %label.loopexit, %label.preheader, %for.inc89 %i.0.load46 = phi i32 [ 0, %for.inc ], [ %i.0.load4669, %label.preheader ], [ %i.0.load4669, %label.loopexit ], [ %i.0.load4669, %for.inc27.if.end30.loopexit56_crit_edge ]90 %pi.4 = phi ptr [ %i, %for.inc ], [ %pi.3.ph, %label.preheader ], [ %pi.3.ph, %label.loopexit ], [ %pi.3.ph, %for.inc27.if.end30.loopexit56_crit_edge ]91 %2 = load i32, ptr %pi.4, align 492 %tobool31 = icmp eq i32 %2, 093 br i1 %tobool31, label %for.inc34, label %label.preheader94 95for.inc34: ; preds = %if.end3096 %inc35 = add nsw i32 %i.0.load46, 197 store i32 %inc35, ptr %i, align 498 br label %for.cond99 100for.end36: ; preds = %for.cond101 store i32 1, ptr %i, align 4102 %3 = load i32, ptr @c, align 4103 %tobool37 = icmp eq i32 %3, 0104 br i1 %tobool37, label %label.preheader, label %land.rhs105 106land.rhs: ; preds = %for.end36107 store i32 0, ptr @a, align 4108 br label %label.preheader109 110label.preheader: ; preds = %for.end36, %if.end30, %land.rhs111 %i.0.load4669 = phi i32 [ 1, %land.rhs ], [ %i.0.load46, %if.end30 ], [ 1, %for.end36 ]112 %pi.3.ph = phi ptr [ %pi.0, %land.rhs ], [ %pi.4, %if.end30 ], [ %pi.0, %for.end36 ]113 %4 = load i32, ptr @b, align 4114 %inc285863 = add nsw i32 %4, 1115 store i32 %inc285863, ptr @b, align 4116 %tobool175964 = icmp eq i32 %inc285863, 0117 br i1 %tobool175964, label %if.end30, label %while.condthread-pre-split.lr.ph.lr.ph118 119while.condthread-pre-split.lr.ph.lr.ph: ; preds = %label.preheader120 %.pr50 = load i32, ptr @d, align 4121 %tobool19 = icmp eq i32 %.pr50, 0122 %a.promoted.pre = load i32, ptr @a, align 4123 br label %while.condthread-pre-split124}125