; 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, 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, i32* undef, align 4
%1 = sext i32 %0 to i64
br label %for.body65.us
for.body65.us: ; preds = %for.inc219.us, %for.body65.lr.ph
%indvars.iv = phi i64 [ %indvars.iv.next, %for.inc219.us ], [ 1, %for.body65.lr.ph ]
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
%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
%cmp64.us = icmp sgt i64 %indvars.iv.next, %1
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
}