id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc	os	architecture	failure	difficulty	testcase	blockedby	blocking	related
5959	Top level splice in Template Haskell has over-ambitious lexical scope?	mightybyte		"ghc: panic! (the 'impossible' happened)
  (GHC version 7.4.1 for x86_64-unknown-linux):
        nameModule b_a2PR{tv}

While working on this project https://github.com/mightybyte/snaplet-postgresql-simple I encountered a GHC panic.  To reproduce, check out revision 6573d4359c5cb7699c931c44ebf1bf135099f83b (currently HEAD of the master branch), cabal install it, then go to the example directory and build with ""ghc --make Site.hs"".

This has caused the crash for me on two different Linux systems with GHC 7.4.1.  I realize it requires building a large number of package dependencies, but I have no idea of how to construct a smaller test case.  It should be pretty easy to build these dependencies with cabal or cabal-dev."	bug	new	low	7.6.2	Compiler	7.5				Linux	x86_64 (amd64)	Incorrect warning at compile-time	Unknown	th/T5971