[LLVMbugs] [Bug 14233] New: jump-threading crash

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=14233

             Bug #: 14233
           Summary: jump-threading crash
           Product: libraries
           Version: trunk
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: Scalar Optimizations
        AssignedTo: unassignedbugs at nondot.org
        ReportedBy: nlewycky at google.com
                CC: llvmbugs at cs.uiuc.edu, micah.villmow at amd.com
    Classification: Unclassified


Created attachment 9480
  --> http://llvm.org/bugs/attachment.cgi?id=9480
testcase

Crash on attached testcase.

$ opt -jump-threading b.ll
WARNING: You're attempting to print out a bitcode file.
This is inadvisable as it may cause display problems. If
you REALLY want to taste LLVM bitcode first-hand, you
can force output with the `-f' option.

0  opt             0x000000000166c10d
1  opt             0x000000000166bde2
2  libpthread.so.0 0x00007fe6f19f18f0
3  opt             0x0000000000846d3a
4  opt             0x0000000000844ffc
5  opt             0x000000000091c6d4
6  opt             0x000000000091c0ca
7  opt             0x000000000091bed4
8  opt             0x000000000119219c
9  opt             0x0000000001542e68
llvm::DataLayout::getTypeSizeInBits(llvm::Type*) const + 188
10 opt             0x0000000001542d2f
llvm::DataLayout::getPointerTypeSizeInBits(llvm::Type*) const + 51
11 opt             0x000000000154339f
llvm::DataLayout::getIntPtrType(llvm::Type*) const + 35
12 opt             0x00000000012ffcb3
llvm::ConstantFoldCompareInstOperands(unsigned int, llvm::Constant*,
llvm::Constant*, llvm::DataLayout const*, llvm::TargetLibraryInfo const*) + 852
13 opt             0x00000000013411ee
14 opt             0x0000000001342e74
15 opt             0x0000000001342359
16 opt             0x0000000001341ddf
17 opt             0x00000000013446a9
18 opt             0x00000000013450a5
llvm::LazyValueInfo::getPredicateOnEdge(unsigned int, llvm::Value*,
llvm::Constant*, llvm::BasicBlock*, llvm::BasicBlock*) + 123
[...]
28 opt             0x0000000000837a7c main + 5457
29 libc.so.6       0x00007fe6f0cc8c4d __libc_start_main + 253
30 opt             0x0000000000827829
Stack dump:
0.      Program arguments: llvm/Debug+Asserts/bin/opt -jump-threading b.ll 
1.      Running pass 'Function Pass Manager' on module 'b.ll'.
2.      Running pass 'Jump Threading' on function '@test'
Segmentation fault

-- 
Configure bugmail: http://llvm.org/bugs/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are on the CC list for the bug.