id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc	os	architecture	failure	difficulty	testcase	blockedby	blocking	related
2788	GHC panic	rodprice		"Attempting to compile SHA1Test.hs in the Crypto-4.1.0 package on Hackage generates the following

ghc: panic! (the 'impossible' happened)
  (GHC version 6.10.1 for i386-apple-darwin):
	RegAllocLinear.getStackSlotFor: out of stack slots, try -fregs-graph

Compiling by hand with 
ghc --make -fglasgow-exts -fregs-graph SHA1Test.hs 
resolves the problem.

I'm using an Intel MacBook Pro running Leopard (10.5.5).


"	bug	closed	normal		Compiler	6.10.1	duplicate			MacOS X	x86