On 19/07/2014 06:00, Kyle Van Berendonck wrote:
I found these:
https://github.com/ghc/ghc/blob/5f3c5384df59717ca8013c5df8d1f65692867825/includes/rts/Constants.h#L194
They go only 0-14, so there's some long chains of branches and stuff in
hot paths that could be cleaned up into single -masked
Hi Simon,
I have been inspecting what gcc generates and found that in all the
functions I checked which used the thread status in a switch, none of them
generated jump tables, rather, long chains of cmp's.
I predict this is because there are overlapping cases (or even a
fall-through in one I
Message: 2
Date: Sat, 19 Jul 2014 15:00:17 +1000
From: Kyle Van Berendonck kvanberendo...@gmail.com
To: ghc-devs@haskell.org ghc-devs@haskell.org
Subject: Thread status constants
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-devs@haskell.org
Subject: Thread status constants
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Hi,
I found these:
https://github.com/ghc/ghc/blob/5f3c5384df59717ca8013c5df8d1f6
5692867825/includes/rts
-marburg.de wrote:
Message: 2
Date: Sat, 19 Jul 2014 15:00:17 +1000
From: Kyle Van Berendonck kvanberendo...@gmail.com
To: ghc-devs@haskell.org ghc-devs@haskell.org
Subject: Thread status constants
Message-ID:
CAFSvR6A3maSWngY
Hi,
I found these:
https://github.com/ghc/ghc/blob/5f3c5384df59717ca8013c5df8d1f65692867825/includes/rts/Constants.h#L194
They go only 0-14, so there's some long chains of branches and stuff in hot
paths that could be cleaned up into single -masked branches by changing
these into a set of flags.
