compiler/coreSyn/CoreOpt.hs · 51abb1c88b53e2989a2a8c2939ac4abc04bef194 · Grégoire Locqueville / GHC

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7 years ago

This patch moves the "ok_unfolding" test
   from  CoreOpt.joinPointBinding_maybe
   to    OccurAnal.decideJoinPointHood

Previously the occurrence analyser was deciding to make
something a join point, but the simplifier was reversing
that decision, which made the decision about /other/ bindings
invalid.

Fixes Trac #14650.

(cherry picked from commit 66ff794f)

20afdaa7

History

Fix join-point decision

Simon Peyton Jones authored 7 years ago

This patch moves the "ok_unfolding" test
   from  CoreOpt.joinPointBinding_maybe
   to    OccurAnal.decideJoinPointHood

Previously the occurrence analyser was deciding to make
something a join point, but the simplifier was reversing
that decision, which made the decision about /other/ bindings
invalid.

Fixes Trac #14650.

(cherry picked from commit 66ff794f)

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