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Performance Problems on AST Dump

Using the latest self compiler ghc

ghc -O -ddump-to-file -ddump-parsed-ast

with the file https://raw.githubusercontent.com/h4ck3rm1k3/gcc-ontology/master/tests/example_python_ast_in_haskell.hs

After 2 hours I stopped it : PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND

20 0 1.000t 0.014t 0 D 3.3 94.0 108:29.80 ghc

Trac metadata
Trac field Value
Version 8.3
Type Bug
TypeOfFailure OtherFailure
Priority low
Resolution Unresolved
Component Compiler
Test case
Differential revisions
BlockedBy
Related
Blocking
CC
Operating system
Architecture x86_64 (amd64)
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