Re: turn off let floating
On Fri, Apr 09, 2004 at 03:27:01PM +0200, David Sabel wrote: > you can turn off let-floating by compiling without optimizations, > i.e. without using a -O flag or using -O0 explicitly. > The disadvantage is that most of all other optimizations > are turned off too. That is exactly what I'm doing at the moment. The module that has the nasty impure bits in it is not compiled with optimisations. I will improve this when GHC regains the non-let floating flag. > Another possibility would be to compile your program with HasFuse > > http://www.ki.informatik.uni-frankfurt.de/~sabel/hasfuse/ > > which is a modification of GHC, that performs only such transformations > that are compatible with the use of unsafePerformIO. > (no common subexpression elimination, > no let-floating out, > more restrictive inlining) That is a possibility, but the code is part of buddha, my debugger. I would have to require the user of buddha also to have HasFuse. Cheers, Bernie. ___ Glasgow-haskell-users mailing list [EMAIL PROTECTED] http://www.haskell.org/mailman/listinfo/glasgow-haskell-users
Announcement: GHC 6.2.1 under darwinports
Hi, The Glasgow Haskell Compiler supported under darwinports has been bumped to version 6.2.1. By default, GHC now builds with OpenGL support. The build should work for both OS X 10.2.x and 10.3.x. This lets Mac OS X jaguar users to get the latest version of GHC, as Wolfgang Thaller's binary release is only tested with panther. It can also provide amusement for those who just like to build from source. For information on getting darwinports, see http://darwinports.opendarwin.org. Best Wishes, Greg Wright Gregory Wright Antiope Associates LLC [EMAIL PROTECTED] ___ Glasgow-haskell-users mailing list [EMAIL PROTECTED] http://www.haskell.org/mailman/listinfo/glasgow-haskell-users
Re: turn off let floating
Hi, you can turn off let-floating by compiling without optimizations, i.e. without using a -O flag or using -O0 explicitly. The disadvantage is that most of all other optimizations are turned off too. Another possibility would be to compile your program with HasFuse http://www.ki.informatik.uni-frankfurt.de/~sabel/hasfuse/ which is a modification of GHC, that performs only such transformations that are compatible with the use of unsafePerformIO. (no common subexpression elimination, no let-floating out, more restrictive inlining) In fact, HasFuse guarantees more than compiling SAFE uses of unsafePerformIO correctly (it fulfills the FUNDIO-semantics), but HasFuse can also be used to compile 'normal' Haskell programs. David -- JWGU Frankfurt, Germany - Original Message - From: "Bernard James POPE" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Cc: "Bernard James POPE" <[EMAIL PROTECTED]> Sent: Tuesday, April 06, 2004 10:24 AM Subject: turn off let floating > Hi all, > > In the documentation for System.IO.Unsafe > it says: > >Make sure that the either you switch off let-floating, >or that the call to unsafePerformIO cannot float outside a lambda. > > My question is how can you turn off let floating? I can't seem to > find a flag that suggests this behaviour. > > Cheers, > Bernie. > ___ > Glasgow-haskell-users mailing list > [EMAIL PROTECTED] > http://www.haskell.org/mailman/listinfo/glasgow-haskell-users ___ Glasgow-haskell-users mailing list [EMAIL PROTECTED] http://www.haskell.org/mailman/listinfo/glasgow-haskell-users
