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| author | simonpj <unknown> | 1999-08-23 15:05:29 +0000 |
|---|---|---|
| committer | simonpj <unknown> | 1999-08-23 15:05:29 +0000 |
| commit | 52cd1677dccb3382ee95f28a701cba3b68fecfbb (patch) | |
| tree | 9bf9c3ae759211992b528461a16911b1f4af7fc1 /ghc | |
| parent | d392968d909449a16d02e0e70a5eb9eddb1c07ab (diff) | |
| download | haskell-52cd1677dccb3382ee95f28a701cba3b68fecfbb.tar.gz | |
[project @ 1999-08-23 15:05:28 by simonpj]
Add -fno-cpr option
Diffstat (limited to 'ghc')
| -rw-r--r-- | ghc/docs/users_guide/using.vsgml | 8 | ||||
| -rw-r--r-- | ghc/driver/ghc.lprl | 6 |
2 files changed, 13 insertions, 1 deletions
diff --git a/ghc/docs/users_guide/using.vsgml b/ghc/docs/users_guide/using.vsgml index 4fd1330372..5b93782c66 100644 --- a/ghc/docs/users_guide/using.vsgml +++ b/ghc/docs/users_guide/using.vsgml @@ -940,14 +940,22 @@ example, you can say @-O2 -fno-strictness@, which will then drop out any running of the strictness analyser. The options you are most likely to want to turn off are: +<itemize> +<item> @-fno-strictness@<nidx>-fno-strictness option</nidx> (strictness analyser [because it is sometimes slow]), +<item> @-fno-specialise@<nidx>-fno-specialise option</nidx> (automatic specialisation of overloaded functions [because it makes your code bigger]) [US spelling also accepted], and +<item> +@-fno-cpr@<nidx>-fno-cpr option</nidx> switches off the CPR (constructed product +result) analyser. +<item> @-fno-update-analysis@<nidx>-fno-update-analysis option</nidx> (update analyser, because it sometimes takes a <em>long</em> time). This one is only enabled with -O2 anyway. +</itemize> Should you wish to turn individual flags <em>on</em>, you are advised to use the @-Ofile@ option, described above. Because the order in diff --git a/ghc/driver/ghc.lprl b/ghc/driver/ghc.lprl index b9d4ef2f1f..8951f16ad4 100644 --- a/ghc/driver/ghc.lprl +++ b/ghc/driver/ghc.lprl @@ -228,6 +228,7 @@ sub setupOptFlags { $Oopt_FinalStgProfilingMassage = ''; $Oopt_StgStats = ''; $Oopt_DoSpecialise = '-fspecialise'; + $Oopt_DoCpr = '-fcpr-analyse'; $Oopt_FoldrBuild = 0; # *Off* by default! $Oopt_UsageSPInf = ''; # Off by default } # end of setupOptFlags @@ -766,7 +767,7 @@ sub setupOptimiseFlags { '-fstrictness', - '-fcpr-analyse', + $Oopt_DoCpr, '-fworker-wrapper', '-fsimplify', @@ -3086,6 +3087,9 @@ arg: while($_ = $Args[0]) { /^-fno-speciali[sz]e$/ && do { $Oopt_DoSpecialise = ''; next arg; }; + /^-fno-cpr$/ + && do { $Oopt_DoCpr = ''; next arg; }; + /^-fusagesp$/ && do { $Oopt_UsageSPInf = '-fusagesp'; push (@HsC_flags, '-fusagesp-on'); next arg; }; |