http://llvm.org/bugs/show_bug.cgi?id=13469
Bug #: 13469
Summary: llc segfaults on this input.
Product: new-bugs
Version: trunk
Platform: PC
OS/Version: Linux
Status: NEW
Severity: normal
Priority: P
Component: new bugs
AssignedTo: [email protected]
ReportedBy: [email protected]
CC: [email protected]
Classification: Unclassified
Created attachment 8954
--> http://llvm.org/bugs/attachment.cgi?id=8954
Reduced testcase from bugpoint
llc segfaults on this input.
I experience this bug with llc from svn revision 160395 (17 July). Built using
gcc 4.6 on 64-bit gnu/linux.
The module verifier (opt -verify) reports NO problems with this input.
Thanks,
Nick
$ llc bugpoint-reduced-simplified.bc -o bugpoint-reduced-simplified.s
0 llc 0x00000000013f3600
1 llc 0x00000000013f32d6
2 libpthread.so.0 0x00007f0f23d64080
3 llc 0x00000000008cd496
4 llc 0x000000000129fe9e
llvm::BasicBlock::moveBefore(llvm::BasicBlock*) + 48
5 llc 0x00000000010df037
6 llc 0x00000000010df2e8
7 llc 0x00000000010df63b
8 llc 0x00000000010dffb7
9 llc 0x00000000010e0763
10 llc 0x00000000011855c3
llvm::LPPassManager::runOnFunction(llvm::Function&) + 1031
11 llc 0x0000000001383df4
llvm::FPPassManager::runOnFunction(llvm::Function&) + 388
12 llc 0x000000000138400f
llvm::FPPassManager::runOnModule(llvm::Module&) + 107
13 llc 0x000000000138434f
llvm::MPPassManager::runOnModule(llvm::Module&) + 453
14 llc 0x0000000001384881 llvm::PassManagerImpl::run(llvm::Module&)
+ 125
15 llc 0x0000000001384a35 llvm::PassManager::run(llvm::Module&) +
39
16 llc 0x00000000007dc9ea main + 3843
17 libc.so.6 0x00007f0f2305e5a6 __libc_start_main + 230
18 llc 0x00000000007db539
Stack dump:
0. Program arguments: llc bugpoint-reduced-simplified.bc -o
bugpoint-reduced-simplified.s
1. Running pass 'Function Pass Manager' on module
'bugpoint-reduced-simplified.bc'.
2. Running pass 'Loop Pass Manager' on function '@main'
3. Running pass 'Loop Strength Reduction' on basic block
'%while.cond.outer.i38'
Segmentation fault
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