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authorsimonpj@microsoft.com <unknown>2010-10-08 13:35:42 +0000
committersimonpj@microsoft.com <unknown>2010-10-08 13:35:42 +0000
commitcd2f5397bc1345fc37706168c268a8bd37af7f2f (patch)
treebbacf9ae03b8d32129c11ffe124be0f26a17a440 /compiler/codeGen/CgExtCode.hs
parent7e3ec3f3aa3ecaf39cb4519f562ee20debcb5ece (diff)
downloadhaskell-cd2f5397bc1345fc37706168c268a8bd37af7f2f.tar.gz
Do less simplification when doing let-generalisation
This fixes Trac #4361. In a rather delicate way, but no more delicate than before. A more remoseless typechecker would reject #4361 altogether. See Note [Avoid unecessary constraint simplification]
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