[llvm-dev] Error-Running pass 'Function Pass Manager' on module

[cszide via llvm-dev]

For some cases, the following error also occurs
1. Running pass 'Interprocedural Sparse Conditional Constant Propagation' on module 'a.bc'.
Segmentation fault (core dumped)

In most case, opt reports
1 Running pass 'Function Pass Manager' on module 'xx.bc',
2 Running pass 'mmm' on function '@yy'
Segmentation fault (core dumped)

At 2018-11-01 20:15:27, "cszide via llvm-dev" <llvm-dev at lists.llvm.org> wrote:

Hi, everyone, 
I use opt to optimize some .bc files, but in some cases, when I use a costume passes sequence, I get the following error
1.Running pass 'Function Pass Manager' on module 'xx.bc'.
2.Running pass 'Value Propagation' on function '@yy'
Segmentation fault (core dumped)


What are the reasons of this error? From the output text, I know that opt runs pass 'Function Pass Manager' on module, which is not correct, but I cannot find the reason.
Or there are some cautions that I need to know when I define the passes sequence by myself?




 
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