[commit: ghc] master: Make splitStrProdDmd (and similarly Use) more robust (2e362dd)

[git at git.haskell.org]

Repository : ssh://git@git.haskell.org/ghc

On branch  : master
Link       : http://ghc.haskell.org/trac/ghc/changeset/2e362ddebf2286409b7423d3dd49152117c1ae56/ghc

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commit 2e362ddebf2286409b7423d3dd49152117c1ae56
Author: Simon Peyton Jones <simonpj at microsoft.com>
Date:   Thu Jun 19 09:46:24 2014 +0100

    Make splitStrProdDmd (and similarly Use) more robust
    
    The issue here is avoiding a GHC crash when a program uses
    unsafeCoerce is a dangerous (or even outright-wrong) way.
    
    See Trac #9208


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2e362ddebf2286409b7423d3dd49152117c1ae56
 compiler/basicTypes/Demand.lhs                  | 52 ++++++-------
 testsuite/tests/stranal/should_compile/T9208.hs | 98 +++++++++++++++++++++++++
 testsuite/tests/stranal/should_compile/all.T    |  2 +-
 3 files changed, 123 insertions(+), 29 deletions(-)

Diff suppressed because of size. To see it, use:

    git diff-tree --root --patch-with-stat --no-color --find-copies-harder --ignore-space-at-eol --cc 2e362ddebf2286409b7423d3dd49152117c1ae56