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New testcase that crashes the loop extractor

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12376 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2004-03-14 03:03:59 +00:00
parent 1e3cb34753
commit fc44806194
1 changed files with 75 additions and 0 deletions
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75
test/Transforms/CodeExtractor/2004-03-13-LoopExtractorCrash.ll Normal file
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; RUN: llvm-as < %s | opt -loop-extract -disable-output
void %solve() {
entry:
br label %loopentry.0
loopentry.0: ; preds = %entry, %endif.0
br bool false, label %no_exit.0, label %loopexit.0
no_exit.0: ; preds = %loopentry.0
br bool false, label %then.0, label %endif.0
then.0: ; preds = %no_exit.0
br bool false, label %shortcirc_done, label %shortcirc_next
shortcirc_next: ; preds = %then.0
br label %shortcirc_done
shortcirc_done: ; preds = %then.0, %shortcirc_next
br bool false, label %then.1, label %endif.1
then.1: ; preds = %shortcirc_done
br bool false, label %cond_true, label %cond_false
cond_true: ; preds = %then.1
br label %cond_continue
cond_false: ; preds = %then.1
br label %cond_continue
cond_continue: ; preds = %cond_true, %cond_false
br label %return
after_ret.0: ; No predecessors!
br label %endif.1
endif.1: ; preds = %shortcirc_done, %after_ret.0
br label %endif.0
endif.0: ; preds = %no_exit.0, %endif.1
br label %loopentry.0
loopexit.0: ; preds = %loopentry.0
br bool false, label %then.2, label %endif.2
then.2: ; preds = %loopexit.0
br bool false, label %then.3, label %endif.3
then.3: ; preds = %then.2
br label %return
after_ret.1: ; No predecessors!
br label %endif.3
endif.3: ; preds = %then.2, %after_ret.1
br label %endif.2
endif.2: ; preds = %loopexit.0, %endif.3
br label %loopentry.1
loopentry.1: ; preds = %endif.2, %no_exit.1
br bool false, label %no_exit.1, label %loopexit.1
no_exit.1: ; preds = %loopentry.1
br label %loopentry.1
loopexit.1: ; preds = %loopentry.1
br label %return
after_ret.2: ; No predecessors!
br label %return
return: ; preds = %cond_continue, %then.3, %loopexit.1, %after_ret.2
ret void
}