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<head>
<base href="http://llvm.org/bugs/" />
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<body><table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - Assertion `dep.isUnknown() && "unexptected dependence type"' failed."
href="http://llvm.org/bugs/show_bug.cgi?id=18138">18138</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>Assertion `dep.isUnknown() && "unexptected dependence type"' failed.
</td>
</tr>
<tr>
<th>Product</th>
<td>libraries
</td>
</tr>
<tr>
<th>Version</th>
<td>trunk
</td>
</tr>
<tr>
<th>Hardware</th>
<td>PC
</td>
</tr>
<tr>
<th>OS</th>
<td>Linux
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
<tr>
<th>Component</th>
<td>Global Analyses
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>maemarcus@gmail.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvmbugs@cs.uiuc.edu
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>$ cat bugpoint-reduced-simplified.ll
; ModuleID = 'bugpoint-reduced-simplified.bc'
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-unknown-linux-gnu"
; Function Attrs: nounwind uwtable
define void @main() #0 {
entry:
br i1 undef, label %if.end, label %return
if.end: ; preds = %entry
br i1 undef, label %for.body.preheader, label %for.cond.i.preheader
for.body.preheader: ; preds = %if.end
br label %for.body
for.cond.i.preheader.loopexit: ; preds = %for.body
br label %for.cond.i.preheader
for.cond.i.preheader: ; preds =
%for.cond.i.preheader.loopexit, %if.end
br i1 undef, label %for.body.i.preheader, label %vector_sum.exit
for.body.i.preheader: ; preds =
%for.cond.i.preheader
br label %for.body.i
for.body: ; preds = %for.body,
%for.body.preheader
tail call void @drand48() #2
br i1 undef, label %for.body, label %for.cond.i.preheader.loopexit
for.body.i: ; preds = %for.body.i,
%for.body.i.preheader
br i1 undef, label %for.body.i, label %vector_sum.exit.loopexit
vector_sum.exit.loopexit: ; preds = %for.body.i
br label %vector_sum.exit
vector_sum.exit: ; preds =
%vector_sum.exit.loopexit, %for.cond.i.preheader
br label %return
return: ; preds = %vector_sum.exit,
%entry
ret void
}
; Function Attrs: nounwind
declare void @drand48() #1
attributes #0 = { nounwind uwtable "less-precise-fpmad"="false"
"no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf"
"no-infs-fp-math"="false" "no-nans-fp-math"="false"
"stack-protector-buffer-size"="8" "unsafe-fp-math"="false"
"use-soft-float"="false" }
attributes #1 = { nounwind "less-precise-fpmad"="false"
"no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf"
"no-infs-fp-math"="false" "no-nans-fp-math"="false"
"stack-protector-buffer-size"="8" "unsafe-fp-math"="false"
"use-soft-float"="false" }
attributes #2 = { nounwind }
!llvm.ident = !{!0}
!0 = metadata !{metadata !"clang version 3.5 (trunk 196290)"}
$ opt -print-memdeps bugpoint-reduced-simplified.ll -S -o -
opt: /home/marcusmae/forge/llvm/lib/Analysis/MemDepPrinter.cpp:71: static
{anonymous}::MemDepPrinter::InstTypePair
{anonymous}::MemDepPrinter::getInstTypePair(llvm::MemDepResult): Assertion
`dep.isUnknown() && "unexptected dependence type"' failed.
0 opt 0x000000000152faa3 llvm::sys::PrintStackTrace(_IO_FILE*) +
38
1 opt 0x000000000152fd2a
2 opt 0x000000000152f76e
3 libpthread.so.0 0x00007fc05a86ecb0
4 libc.so.6 0x00007fc059899425 gsignal + 53
5 libc.so.6 0x00007fc05989cb8b abort + 379
6 libc.so.6 0x00007fc0598920ee
7 libc.so.6 0x00007fc059892192
8 opt 0x00000000011efb11
9 opt 0x00000000011effaa
10 opt 0x00000000014ab718
llvm::FPPassManager::runOnFunction(llvm::Function&) + 390
11 opt 0x00000000014ab913
llvm::FPPassManager::runOnModule(llvm::Module&) + 89
12 opt 0x00000000014abc8b
13 opt 0x00000000014ac2a0
llvm::legacy::PassManagerImpl::run(llvm::Module&) + 254
14 opt 0x00000000014ac4b3
llvm::legacy::PassManager::run(llvm::Module&) + 39
15 opt 0x0000000000867b14 main + 5778
16 libc.so.6 0x00007fc05988476d __libc_start_main + 237
17 opt 0x0000000000859799
Stack dump:
0. Program arguments: opt -print-memdeps bugpoint-reduced-simplified.ll -S
-o -
1. Running pass 'Function Pass Manager' on module
'bugpoint-reduced-simplified.ll'.
2. Running pass 'Print MemDeps of function' on function '@main'
Aborted (core dumped)</pre>
</div>
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