Re: libraries/integer-gmp/cbits/gmp-wrappers.cmm:30:26: fatal error: HsIntegerGmp.h: No such file or directory

2014-03-08 Thread Mateusz Kowalczyk
On 08/03/14 07:19, Erik de Castro Lopo wrote:
 Mateusz Kowalczyk wrote:
 
 I'm trying to build HEAD but I'm getting

 libraries/integer-gmp/cbits/gmp-wrappers.cmm:30:26: fatal error:
 HsIntegerGmp.h: No such file or directory
  #include HsIntegerGmp.h
   ^
 compilation terminated.
 make[1]: ***
 [libraries/integer-gmp/dist-install/build/.depend-v-dyn.c_asm] Error 1
 make: *** [all] Error 2

 This in on 32-bit Gentoo Linux, using 7.6.3 to build. I've been able to
 build fine before. My last few versions are

 …
 drwxr-xr-x5 shana shana   4096 Feb 19 04:45 ghc-20140218
 drwxr-xr-x5 shana shana   4096 Feb 22 22:04 ghc-20140220
 drwxr-xr-x5 shana shana   4096 Feb 25 08:44 ghc-20140225

 which means that the problem must have been introduced some time after
 that point.

 Does anyone have any ideas?
 
 What did you do that led up to this point?
 
 Erik
 

./sync-all get  sync-all pull
./configure --prefix=/home/shana/ghc-20140308  make

I also ran ‘./sync-all reset --hard’

I now ran ‘make clean  ./configure --prefix=/home/shana/ghc-20140308
 make’ and saved the results. You can find the log at
http://fuuzetsu.co.uk/misc/ghc-20140308-gmp-log (~1.8MB).

-- 
Mateusz K.
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Re: libraries/integer-gmp/cbits/gmp-wrappers.cmm:30:26: fatal error: HsIntegerGmp.h: No such file or directory

2014-03-08 Thread Mateusz Kowalczyk
On 08/03/14 08:11, Mateusz Kowalczyk wrote:
 On 08/03/14 07:19, Erik de Castro Lopo wrote:
 Mateusz Kowalczyk wrote:

 I'm trying to build HEAD but I'm getting

 libraries/integer-gmp/cbits/gmp-wrappers.cmm:30:26: fatal error:
 HsIntegerGmp.h: No such file or directory
  #include HsIntegerGmp.h
   ^
 compilation terminated.
 make[1]: ***
 [libraries/integer-gmp/dist-install/build/.depend-v-dyn.c_asm] Error 1
 make: *** [all] Error 2

 This in on 32-bit Gentoo Linux, using 7.6.3 to build. I've been able to
 build fine before. My last few versions are

 …
 drwxr-xr-x5 shana shana   4096 Feb 19 04:45 ghc-20140218
 drwxr-xr-x5 shana shana   4096 Feb 22 22:04 ghc-20140220
 drwxr-xr-x5 shana shana   4096 Feb 25 08:44 ghc-20140225

 which means that the problem must have been introduced some time after
 that point.

 Does anyone have any ideas?

 What did you do that led up to this point?

 Erik

 
 ./sync-all get  sync-all pull
 ./configure --prefix=/home/shana/ghc-20140308  make
 
 I also ran ‘./sync-all reset --hard’
 
 I now ran ‘make clean  ./configure --prefix=/home/shana/ghc-20140308
  make’ and saved the results. You can find the log at
 http://fuuzetsu.co.uk/misc/ghc-20140308-gmp-log (~1.8MB).
 

I was told in #ghc that I need to re-run ‘perl boot’ as well. I'll try
it and post back if it still fails.

-- 
Mateusz K.
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Optimized Cmm containing useless blocks

2014-03-08 Thread Johan Tibell
While looking at some generated Cmm I saw things like this

c1Cm:
goto c1Cq;
c1Cq:

i.e. useless basic blocks that haven't been optimized away. Is this to be
expected?

-- Johan
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Re: Optimized Cmm containing useless blocks

2014-03-08 Thread Johan Tibell
On a related note, doesn't Cmm support fall-through branches? Heap checks
use two branches instead of one branch and one fall-through case:

  c1Cq:
  Hp = Hp + 152;
  if (Hp  I64[BaseReg + 856]) goto c1Cs; else goto c1Cr;
  c1Cs:
  I64[BaseReg + 904] = 152;
  goto c1Cp;
  c1Cp:
  R1 = PicBaseReg + a_r1za_closure;
  call (I64[BaseReg - 8])(R1) args: 8, res: 0, upd: 8;
  c1Cr:



On Sat, Mar 8, 2014 at 9:21 AM, Johan Tibell johan.tib...@gmail.com wrote:

 While looking at some generated Cmm I saw things like this

 c1Cm:
 goto c1Cq;
 c1Cq:

 i.e. useless basic blocks that haven't been optimized away. Is this to be
 expected?

 -- Johan


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Re: Building GHC for performance testing

2014-03-08 Thread Simon Marlow

On 08/03/14 07:54, Herbert Valerio Riedel wrote:

Hi Simon,

On 2014-03-08 at 08:18:20 +0100, Simon Marlow wrote:

On 06/03/14 09:50, Johan Tibell wrote:


[...]


   * Are there any tweaks to mk/build.mk http://build.mk we can do to
make the build faster without compromising the results?


Turn down the stage2 optimisation, and turn off the docs:

GhcStage2HcOpts = -O


...but doesn't that compromise the compile-time metrics collected by
nofib about GHC's performance?


I think Johan is interested primarily in runtime performance, but yes if 
you care about compile time then it's better to leave GhcStage2HcOpts at 
the default.


Cheers,
Simon

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Re: Building GHC for performance testing

2014-03-08 Thread Carter Schonwald
one idea that I think Ben Gamari (or was it Reid?) pointed out is that
another (potentially valuable) metric is how long does it take for ghc to
build itself


On Sat, Mar 8, 2014 at 5:20 AM, Simon Marlow marlo...@gmail.com wrote:

 On 08/03/14 07:54, Herbert Valerio Riedel wrote:

 Hi Simon,

 On 2014-03-08 at 08:18:20 +0100, Simon Marlow wrote:

 On 06/03/14 09:50, Johan Tibell wrote:


 [...]

 * Are there any tweaks to mk/build.mk http://build.mk we can do to
 make the build faster without compromising the results?


 Turn down the stage2 optimisation, and turn off the docs:

 GhcStage2HcOpts = -O


 ...but doesn't that compromise the compile-time metrics collected by
 nofib about GHC's performance?


 I think Johan is interested primarily in runtime performance, but yes if
 you care about compile time then it's better to leave GhcStage2HcOpts at
 the default.

 Cheers,
 Simon


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Re: Optimized Cmm containing useless blocks

2014-03-08 Thread Alexander Kjeldaas
Seems like something that should be delegated to a peep hole optimizer.
What you describe make it possible to reorder the basic blocks at a later
stage.

Alexander
On Mar 8, 2014 9:24 AM, Johan Tibell johan.tib...@gmail.com wrote:

 On a related note, doesn't Cmm support fall-through branches? Heap checks
 use two branches instead of one branch and one fall-through case:

   c1Cq:
   Hp = Hp + 152;
   if (Hp  I64[BaseReg + 856]) goto c1Cs; else goto c1Cr;
   c1Cs:
   I64[BaseReg + 904] = 152;
   goto c1Cp;
   c1Cp:
   R1 = PicBaseReg + a_r1za_closure;
   call (I64[BaseReg - 8])(R1) args: 8, res: 0, upd: 8;
   c1Cr:



 On Sat, Mar 8, 2014 at 9:21 AM, Johan Tibell johan.tib...@gmail.comwrote:

 While looking at some generated Cmm I saw things like this

 c1Cm:
 goto c1Cq;
 c1Cq:

 i.e. useless basic blocks that haven't been optimized away. Is this to be
 expected?

 -- Johan



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 ghc-devs@haskell.org
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