http://llvm.org/bugs/show_bug.cgi?id=15440
Bug ID: 15440
Summary: llvm opt crash on csmith fuzz testcase
Product: tools
Version: 3.2
Hardware: PC
OS: Linux
Status: NEW
Severity: enhancement
Priority: P
Component: opt
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected]
Classification: Unclassified
Created attachment 10138
--> http://llvm.org/bugs/attachment.cgi?id=10138&action=edit
testcase
Attached is a testcase that was generated by the csmith fuzzer. It crashes when
run through opt -O1
$ opt -O1 emcc-0-basebc.bc -o out.bc
0 opt 0x0000000000db54d2
1 opt 0x0000000000db5853
2 libpthread.so.0 0x00007f67a27f0cb0
Stack dump:
0. Program arguments: /home/alon/Dev/llvmCore-3.2-rc3.install/bin/opt -O1
emcc-0-basebc.bc -o out.bc
1. Running pass 'Global Variable Optimizer' on module 'emcc-0-basebc.bc'.
Segmentation fault (core dumped)
This is on LLVM 3.2.
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