#6104: Regression: space leak in HEAD vs. 7.4
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Reporter: simonmar | Owner: simonpj
Type: bug | Status: new
Priority: highest | Milestone: 7.6.1
Component: Compiler | Version: 7.5
Keywords: | Os: Unknown/Multiple
Architecture: Unknown/Multiple | Failure: Compile-time performance bug
Difficulty: Unknown | Testcase:
Blockedby: | Blocking:
Related: |
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Comment(by simonpj@…):
commit cd627bcfda713efa63b7f5290c84a5077f4976f9
{{{
Author: Simon Peyton Jones <simo...@microsoft.com>
Date: Fri Jul 20 20:07:51 2012 +0100
Do calcUnfoldingGuidance on the *non* occ-analysed RHS
See Note [Calculate unfolding guidance on the non-occ-anal'd
expression]
This makes a big difference to residency (530M vs over 800M when
compiling
Cabal).
This fixes the majority of the regression in Trac #6104
compiler/coreSyn/CoreUnfold.lhs | 79
+++++++++++++++++++++++++-------------
1 files changed, 52 insertions(+), 27 deletions(-)
}}}
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/6104#comment:11>
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