; RUN: opt < %s -S -indvars -verify-scev 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" target triple = "x86_64-apple-macosx10.8.0" define void @test1() nounwind uwtable ssp { entry: br i1 undef, label %for.end, label %for.body for.body: ; preds = %for.body, %entry br i1 false, label %for.end, label %for.body for.end: ; preds = %for.body, %entry br i1 undef, label %for.end11, label %for.body3 for.body3: ; preds = %for.end unreachable for.end11: ; preds = %for.end br i1 undef, label %while.body, label %while.end while.body: ; preds = %for.end11 unreachable while.end: ; preds = %for.end11 br i1 undef, label %if.end115, label %for.cond109 for.cond109: ; preds = %while.end unreachable if.end115: ; preds = %while.end br i1 undef, label %while.body119.lr.ph.lr.ph, label %for.cond612 while.body119.lr.ph.lr.ph: ; preds = %if.end115 br i1 undef, label %for.cond612, label %if.end123.us if.end123.us: ; preds = %while.body119.lr.ph.lr.ph br label %for.cond132.us for.cond132.us: ; preds = %for.cond132.us, %if.end123.us br i1 undef, label %if.then136.us, label %for.cond132.us if.then136.us: ; preds = %for.cond132.us br i1 undef, label %while.end220, label %while.body211 while.body211: ; preds = %while.body211, %if.then136.us br i1 undef, label %while.end220, label %while.body211 while.end220: ; preds = %while.body211, %if.then136.us br label %for.cond246.outer for.cond246.outer: ; preds = %for.inc558, %for.cond394.preheader, %if.then274, %for.cond404.preheader, %while.end220 br label %for.cond246 for.cond246: ; preds = %for.cond372.loopexit, %for.cond246.outer br i1 undef, label %for.end562, label %if.end250 if.end250: ; preds = %for.cond246 br i1 undef, label %if.end256, label %for.end562 if.end256: ; preds = %if.end250 %cmp272 = icmp eq i32 undef, undef br i1 %cmp272, label %if.then274, label %for.cond404.preheader for.cond404.preheader: ; preds = %if.end256 br i1 undef, label %for.cond246.outer, label %for.body409.lr.ph for.body409.lr.ph: ; preds = %for.cond404.preheader br label %for.body409 if.then274: ; preds = %if.end256 br i1 undef, label %for.cond246.outer, label %if.end309 if.end309: ; preds = %if.then274 br i1 undef, label %for.cond372.loopexit, label %for.body361 for.body361: ; preds = %for.body361, %if.end309 br i1 undef, label %for.cond372.loopexit, label %for.body361 for.cond372.loopexit: ; preds = %for.body361, %if.end309 br i1 undef, label %for.cond394.preheader, label %for.cond246 for.cond394.preheader: ; preds = %for.cond372.loopexit br i1 undef, label %for.cond246.outer, label %for.body397 for.body397: ; preds = %for.cond394.preheader unreachable for.body409: ; preds = %for.inc558, %for.body409.lr.ph %k.029 = phi i32 [ 1, %for.body409.lr.ph ], [ %inc559, %for.inc558 ] br i1 undef, label %if.then412, label %if.else433 if.then412: ; preds = %for.body409 br label %if.end440 if.else433: ; preds = %for.body409 br label %if.end440 if.end440: ; preds = %if.else433, %if.then412 br i1 undef, label %for.inc558, label %if.end461 if.end461: ; preds = %if.end440 br i1 undef, label %for.cond528.loopexit, label %for.body517 for.body517: ; preds = %for.body517, %if.end461 br i1 undef, label %for.cond528.loopexit, label %for.body517 for.cond528.loopexit: ; preds = %for.body517, %if.end461 br label %for.inc558 for.inc558: ; preds = %for.cond528.loopexit, %if.end440 %inc559 = add nsw i32 %k.029, 1 %cmp407 = icmp sgt i32 %inc559, undef br i1 %cmp407, label %for.cond246.outer, label %for.body409 for.end562: ; preds = %if.end250, %for.cond246 unreachable for.cond612: ; preds = %while.body119.lr.ph.lr.ph, %if.end115 unreachable } define void @test2() nounwind uwtable ssp { entry: br i1 undef, label %for.end, label %for.body for.body: ; preds = %for.body, %entry br i1 undef, label %for.end, label %for.body for.end: ; preds = %for.body, %entry br i1 undef, label %for.end11, label %for.body3 for.body3: ; preds = %for.end unreachable for.end11: ; preds = %for.end br i1 undef, label %while.body, label %while.end while.body: ; preds = %for.end11 unreachable while.end: ; preds = %for.end11 br i1 undef, label %if.end115, label %for.cond109 for.cond109: ; preds = %while.end unreachable if.end115: ; preds = %while.end br i1 undef, label %while.body119.lr.ph.lr.ph, label %for.cond612 while.body119.lr.ph.lr.ph: ; preds = %if.end115 br i1 undef, label %for.cond612, label %if.end123.us if.end123.us: ; preds = %while.body119.lr.ph.lr.ph br label %for.cond132.us for.cond132.us: ; preds = %for.cond132.us, %if.end123.us br i1 undef, label %if.then136.us, label %for.cond132.us if.then136.us: ; preds = %for.cond132.us br i1 undef, label %while.end220, label %while.body211 while.body211: ; preds = %while.body211, %if.then136.us br i1 undef, label %while.end220, label %while.body211 while.end220: ; preds = %while.body211, %if.then136.us br label %for.cond246.outer for.cond246.outer: ; preds = %for.inc558, %for.cond394.preheader, %if.then274, %for.cond404.preheader, %while.end220 br label %for.cond246 for.cond246: ; preds = %for.cond372.loopexit, %for.cond246.outer br i1 undef, label %for.end562, label %if.end250 if.end250: ; preds = %for.cond246 br i1 undef, label %if.end256, label %for.end562 if.end256: ; preds = %if.end250 %0 = load i32* undef, align 4 br i1 undef, label %if.then274, label %for.cond404.preheader for.cond404.preheader: ; preds = %if.end256 %add406 = add i32 0, %0 br i1 undef, label %for.cond246.outer, label %for.body409.lr.ph for.body409.lr.ph: ; preds = %for.cond404.preheader br label %for.body409 if.then274: ; preds = %if.end256 br i1 undef, label %for.cond246.outer, label %if.end309 if.end309: ; preds = %if.then274 br i1 undef, label %for.cond372.loopexit, label %for.body361 for.body361: ; preds = %for.body361, %if.end309 br i1 undef, label %for.cond372.loopexit, label %for.body361 for.cond372.loopexit: ; preds = %for.body361, %if.end309 br i1 undef, label %for.cond394.preheader, label %for.cond246 for.cond394.preheader: ; preds = %for.cond372.loopexit br i1 undef, label %for.cond246.outer, label %for.body397 for.body397: ; preds = %for.cond394.preheader unreachable for.body409: ; preds = %for.inc558, %for.body409.lr.ph %k.029 = phi i32 [ 1, %for.body409.lr.ph ], [ %inc559, %for.inc558 ] br i1 undef, label %if.then412, label %if.else433 if.then412: ; preds = %for.body409 br label %if.end440 if.else433: ; preds = %for.body409 br label %if.end440 if.end440: ; preds = %if.else433, %if.then412 br i1 undef, label %for.inc558, label %if.end461 if.end461: ; preds = %if.end440 br i1 undef, label %for.cond528.loopexit, label %for.body517 for.body517: ; preds = %for.body517, %if.end461 br i1 undef, label %for.cond528.loopexit, label %for.body517 for.cond528.loopexit: ; preds = %for.body517, %if.end461 br label %for.inc558 for.inc558: ; preds = %for.cond528.loopexit, %if.end440 %inc559 = add nsw i32 %k.029, 1 %cmp407 = icmp sgt i32 %inc559, %add406 br i1 %cmp407, label %for.cond246.outer, label %for.body409 for.end562: ; preds = %if.end250, %for.cond246 unreachable for.cond612: ; preds = %while.body119.lr.ph.lr.ph, %if.end115 unreachable } define void @test3() nounwind uwtable ssp { entry: br i1 undef, label %for.end, label %for.body for.body: ; preds = %for.body, %entry br i1 undef, label %for.end, label %for.body for.end: ; preds = %for.body, %entry br i1 undef, label %for.end11, label %for.body3 for.body3: ; preds = %for.end unreachable for.end11: ; preds = %for.end br i1 undef, label %while.body, label %while.end while.body: ; preds = %for.end11 unreachable while.end: ; preds = %for.end11 br i1 undef, label %if.end115, label %for.cond109 for.cond109: ; preds = %while.end unreachable if.end115: ; preds = %while.end br i1 undef, label %while.body119.lr.ph.lr.ph, label %for.cond612 while.body119.lr.ph.lr.ph: ; preds = %if.end115 br i1 undef, label %for.cond612, label %if.end123.us if.end123.us: ; preds = %while.body119.lr.ph.lr.ph br label %for.cond132.us for.cond132.us: ; preds = %for.cond132.us, %if.end123.us br i1 undef, label %if.then136.us, label %for.cond132.us if.then136.us: ; preds = %for.cond132.us br i1 undef, label %while.end220, label %while.body211 while.body211: ; preds = %while.body211, %if.then136.us br i1 undef, label %while.end220, label %while.body211 while.end220: ; preds = %while.body211, %if.then136.us br label %for.cond246.outer for.cond246.outer: ; preds = %for.inc558, %for.cond394.preheader, %if.then274, %for.cond404.preheader, %while.end220 br label %for.cond246 for.cond246: ; preds = %for.cond372.loopexit, %for.cond246.outer br i1 undef, label %for.end562, label %if.end250 if.end250: ; preds = %for.cond246 br i1 undef, label %if.end256, label %for.end562 if.end256: ; preds = %if.end250 br i1 undef, label %if.then274, label %for.cond404.preheader for.cond404.preheader: ; preds = %if.end256 br i1 undef, label %for.cond246.outer, label %for.body409.lr.ph for.body409.lr.ph: ; preds = %for.cond404.preheader br label %for.body409 if.then274: ; preds = %if.end256 br i1 undef, label %for.cond246.outer, label %if.end309 if.end309: ; preds = %if.then274 br i1 undef, label %for.cond372.loopexit, label %for.body361 for.body361: ; preds = %for.body361, %if.end309 br i1 undef, label %for.cond372.loopexit, label %for.body361 for.cond372.loopexit: ; preds = %for.body361, %if.end309 br i1 undef, label %for.cond394.preheader, label %for.cond246 for.cond394.preheader: ; preds = %for.cond372.loopexit br i1 undef, label %for.cond246.outer, label %for.body397 for.body397: ; preds = %for.cond394.preheader unreachable for.body409: ; preds = %for.inc558, %for.body409.lr.ph br i1 undef, label %if.then412, label %if.else433 if.then412: ; preds = %for.body409 br label %if.end440 if.else433: ; preds = %for.body409 br label %if.end440 if.end440: ; preds = %if.else433, %if.then412 br i1 undef, label %for.inc558, label %if.end461 if.end461: ; preds = %if.end440 br i1 undef, label %for.cond528.loopexit, label %for.body517 for.body517: ; preds = %for.body517, %if.end461 br i1 undef, label %for.cond528.loopexit, label %for.body517 for.cond528.loopexit: ; preds = %for.body517, %if.end461 br label %for.inc558 for.inc558: ; preds = %for.cond528.loopexit, %if.end440 br i1 undef, label %for.cond246.outer, label %for.body409 for.end562: ; preds = %if.end250, %for.cond246 unreachable for.cond612: ; preds = %while.body119.lr.ph.lr.ph, %if.end115 unreachable } define void @test4() nounwind uwtable ssp { entry: br i1 undef, label %if.end8, label %if.else if.else: ; preds = %entry br label %if.end8 if.end8: ; preds = %if.else, %entry br i1 undef, label %if.end26, label %if.else22 if.else22: ; preds = %if.end8 br label %if.end26 if.end26: ; preds = %if.else22, %if.end8 br i1 undef, label %if.end35, label %if.else31 if.else31: ; preds = %if.end26 br label %if.end35 if.end35: ; preds = %if.else31, %if.end26 br i1 undef, label %for.end226, label %for.body.lr.ph for.body.lr.ph: ; preds = %if.end35 br label %for.body48 for.body48: ; preds = %for.inc221, %for.body.lr.ph br i1 undef, label %for.inc221, label %for.body65.lr.ph for.body65.lr.ph: ; preds = %for.body48 %0 = load i32* undef, align 4 br label %for.body65.us for.body65.us: ; preds = %for.inc219.us, %for.body65.lr.ph %k.09.us = phi i32 [ %inc.us, %for.inc219.us ], [ 1, %for.body65.lr.ph ] %idxprom66.us = sext i32 %k.09.us to i64 br i1 undef, label %for.inc219.us, label %if.end72.us if.end72.us: ; preds = %for.body65.us br i1 undef, label %if.end93.us, label %if.then76.us if.then76.us: ; preds = %if.end72.us br label %if.end93.us if.end93.us: ; preds = %if.then76.us, %if.end72.us br i1 undef, label %if.end110.us, label %for.inc219.us if.end110.us: ; preds = %if.end93.us br i1 undef, label %for.inc219.us, label %for.body142.us for.body142.us: ; preds = %for.cond139.loopexit.us, %if.end110.us br label %for.cond152.us for.cond152.us: ; preds = %for.cond152.us, %for.body142.us br i1 undef, label %for.cond139.loopexit.us, label %for.cond152.us for.inc219.us: ; preds = %for.cond139.loopexit.us, %if.end110.us, %if.end93.us, %for.body65.us %inc.us = add nsw i32 %k.09.us, 1 %cmp64.us = icmp sgt i32 %inc.us, %0 br i1 %cmp64.us, label %for.inc221, label %for.body65.us for.cond139.loopexit.us: ; preds = %for.cond152.us br i1 undef, label %for.inc219.us, label %for.body142.us for.inc221: ; preds = %for.inc219.us, %for.body48 br label %for.body48 for.end226: ; preds = %if.end35 ret void }