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1; RUN: llc < %s -verify-coalescing2; PR129273target triple = "x86_64-apple-macosx10.8.0"4 5; This is a case where removeCopyByCommutingDef() creates an identity copy that6; joinCopy must then deal with correctly.7 8@s = common global i16 0, align 29@g1 = common global i32 0, align 410@g2 = common global i32 0, align 411@g0 = common global i32 0, align 412 13define void @func() nounwind uwtable ssp {14for.body.lr.ph:15 %0 = load i32, ptr @g2, align 416 %tobool6 = icmp eq i32 %0, 017 %s.promoted = load i16, ptr @s, align 218 %.pre = load i32, ptr @g1, align 419 br i1 %tobool6, label %for.body.us, label %for.body20 21for.body.us: ; preds = %for.body.lr.ph, %for.inc.us22 %1 = phi i32 [ %3, %for.inc.us ], [ %.pre, %for.body.lr.ph ]23 %dec13.us = phi i16 [ %dec12.us, %for.inc.us ], [ %s.promoted, %for.body.lr.ph ]24 %i.011.us = phi i32 [ %inc.us, %for.inc.us ], [ undef, %for.body.lr.ph ]25 %v.010.us = phi i32 [ %phitmp.us, %for.inc.us ], [ 1, %for.body.lr.ph ]26 %tobool1.us = icmp ne i32 %v.010.us, 027 %2 = zext i1 %tobool1.us to i1628 %lnot.ext.us = xor i16 %2, 129 %add.us = add i16 %dec13.us, %lnot.ext.us30 %conv3.us = zext i16 %add.us to i3231 %add4.us = sub i32 0, %132 %tobool5.us = icmp eq i32 %conv3.us, %add4.us33 br i1 %tobool5.us, label %for.inc.us, label %if.then7.us34 35for.inc.us: ; preds = %cond.end.us, %for.body.us36 %3 = phi i32 [ %1, %for.body.us ], [ %4, %cond.end.us ]37 %dec12.us = phi i16 [ %add.us, %for.body.us ], [ %dec.us, %cond.end.us ]38 %inc.us = add i32 %i.011.us, 139 %phitmp.us = udiv i32 %v.010.us, 1240 %tobool.us = icmp eq i32 %inc.us, 041 br i1 %tobool.us, label %for.end, label %for.body.us42 43cond.end.us: ; preds = %if.then7.us, %cond.false.us44 %4 = phi i32 [ 0, %cond.false.us ], [ %1, %if.then7.us ]45 %cond.us = phi i32 [ 0, %cond.false.us ], [ %v.010.us, %if.then7.us ]46 store i32 %cond.us, ptr @g0, align 447 br label %for.inc.us48 49cond.false.us: ; preds = %if.then7.us50 store i32 0, ptr @g1, align 451 br label %cond.end.us52 53if.then7.us: ; preds = %for.body.us54 %dec.us = add i16 %add.us, -155 br i1 %tobool1.us, label %cond.end.us, label %cond.false.us56 57for.body: ; preds = %for.body.lr.ph, %for.body58 %dec13 = phi i16 [ %dec12, %for.body ], [ %s.promoted, %for.body.lr.ph ]59 %i.011 = phi i32 [ %inc, %for.body ], [ undef, %for.body.lr.ph ]60 %v.010 = phi i32 [ %phitmp, %for.body ], [ 1, %for.body.lr.ph ]61 %tobool1 = icmp eq i32 %v.010, 062 %lnot.ext = zext i1 %tobool1 to i1663 %add = add i16 %dec13, %lnot.ext64 %conv3 = zext i16 %add to i3265 %add4 = sub i32 0, %.pre66 %not.tobool5 = icmp ne i32 %conv3, %add467 %dec = sext i1 %not.tobool5 to i1668 %dec12 = add i16 %add, %dec69 %inc = add i32 %i.011, 170 %phitmp = udiv i32 %v.010, 1271 %tobool = icmp eq i32 %inc, 072 br i1 %tobool, label %for.end, label %for.body73 74for.end: ; preds = %for.inc.us, %for.body75 %dec12.lcssa = phi i16 [ %dec12.us, %for.inc.us ], [ %dec12, %for.body ]76 store i16 %dec12.lcssa, ptr @s, align 277 ret void78}79