LeadingUnderscore
+GhcWithRegisterised
+
\end{verbatim}
Establish what executables to run for the various phases, what the
'-fwarn-missing-methods',
'-fwarn-duplicate-exports');
@MinusWOpts = (@StandardWarnings,
- '-fwarn-incomplete-patterns',
'-fwarn-unused-binds',
+ '-fwarn-unused-matches',
+ '-fwarn-incomplete-patterns',
'-fwarn-unused-imports');
@MinusWallOpts = (@MinusWOpts,
- '-fwarn-unused-matches',
'-fwarn-type-defaults',
'-fwarn-name-shadowing',
'-fwarn-missing-signatures');
'_mp', "-fstack-check -fparallel -D__PARALLEL_HASKELL__ -optc-DPAR",
'_mg', "-fstack-check -fconcurrent -fgransim -D__GRANSIM__ -D__CONCURRENT_HASKELL__ -optc-DCONCURRENT -optc-DGRAN");
-\end{code}
-
-Import/include directories (\tr{-I} options) are sufficiently weird to
-require special handling.
-
-\begin{code}
-@Import_dir = ('.'); #-i things
-@Include_dir = ('.'); #-I things; other default(s) stuck on AFTER option processing
-
# where to look for interface files (system hi's, i.e., prelude and syslibs)
@SysImport_dir = ( $INSTALLING )
? ( "$InstLibDirGhc/imports/std" )
, "-D__CONCURRENT_HASKELL__"
);
-@UserLibrary_dir= (); #-L things;...
-@UserLibrary = (); #-l things asked for by the user
@SysLibrary_dir = ( ( $INSTALLING ) #-syslib things supplied by the system
? $InstLibDirGhc
, "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/std/cbits"
)
);
-@SysLibrary = (); # will be built up as we go along
$TopClosureFile # defaults to 1.2 one; will be mangled later
= '';
# reset the following options:
# RTS flags to use while compiling
@HsC_rts_flags = ();
-@HsP_flags = (); # these are the flags destined solely for
- # the flex/yacc parser
@HsC_flags = ();
@HsC_antiflags = ();
\end{code}
@Import_dir = ('.'); #-i things
@Include_dir = ('.'); #-I things; other default(s) stuck on AFTER option processing
+@UserLibrary_dir= (); #-L things;...
+@UserLibrary = (); #-l things asked for by the user
+@SysLibrary = (); # will be built up as we go along
\end{code}
We are given a list of files with various presumably-known suffixes
$TICKYing = ''; # set to t if compiling for ticky-ticky profiling
$PARing = ''; # set to p if compiling for PAR
$GRANing = ''; # set to g if compiling for GRAN
-$UNREGing = ''; # set to u if compiling unregisterised
+$UNREGing = ($GhcWithRegisterised eq 'YES') ? '' : 'u';
$Specific_hi_file = ''; # set by -ohi <file>; "-" for stdout
$Specific_dump_file = ''; # set by -odump <file>; "-" for stdout
$Using_dump_file = 0;
'-ffoldr-build-on',
'-fdo-eta-reduction',
- '-fdo-case-elim',
'-fdo-lambda-eta-expansion',
'-fcase-of-case',
'-fcase-merge',
'-fsimplify',
'[',
- '-finline-phase1', # Don't inline rule Ids till specialisation has bitten
-
-# APR 99: the stuff in this comment is now
-# handled by -finline-phase1
-#
-# I don't understand why we want -fessential-unfoldings-only here
-# If we have it, the following nasty thing happens:
-# f = E
-# g* = f
-# ...g...
-# where "*" means exported.
-# In the essential-unfoldings pass we still substitute f for g
-# but we don't substitute E for f first. So we get
-# f = E
-# g* = f
-# ...f...
-# The g=f will get reverse-substituted later, but it's untidy. --SLPJ
-#
-# SDM: Here's why it's necessary.
-#
-# If we unfold in the first pass before the specialiser is run
-# we miss opportunities for specialisation because eg. wrappers
-# have been inlined for specialisable functions.
-#
-# This shows up in PrelArr.lhs - the specialised instance for newArray
-# calls the generic rangeSize, because rangeSize is strict and is
-# replaced by its wrapper by the simplifier.
-# '-fessential-unfoldings-only',
-# '-fsimpl-uf-use-threshold0',
-
- '-fmax-simplifier-iterations2',
+ '-finline-phase0', # Don't inline anything till full laziness has bitten
+ # In particular, inlining wrappers inhibits floating
+ # e.g. ...(case f x of ...)...
+ # ==> ...(case (case x of I# x# -> fw x#) of ...)...
+ # ==> ...(case x of I# x# -> case fw x# of ...)...
+ # and now the redex (f x) isn't floatable any more
+ '-fmax-simplifier-iterations2',
']',
+ # Specialisation is best done before full laziness
+ # so that overloaded functions have all their dictionary lambdas manifest
($Oopt_DoSpecialise) ? ( $Oopt_DoSpecialise, ) : (),
+ '-ffull-laziness',
+ '-ffloat-inwards',
+
+# '-fsimplify',
+# '[',
+# # Run the simplifier before specialising, so that overloaded functions
+# # look like f = \d -> ...
+# # (Full laziness may lift out something hiding the \d
+# '-finline-phase1',
+# '-fmax-simplifier-iterations1',
+# ']',
- $Oopt_UsageSPInf, # infer usage information here in case we need it later.
- # (add more of these where you need them --KSW 1999-04)
'-fsimplify',
'[',
- $Oopt_MaxSimplifierIterations,
-
- # Still don't inline transformation rule Ids, to give the
- # rules a good chance to fire
- '-finline-phase1',
+ '-finline-phase1',
+ # Want to run with inline phase 1 after the specialiser to give
+ # maximum chance for fusion to work before we inline build/augment
+ # in phase 2. This made a difference in 'ansi' where an overloaded
+ # function wasn't inlined till too late.
+ $Oopt_MaxSimplifierIterations,
']',
- '-ffull-laziness',
-
- '-ffloat-inwards',
+ $Oopt_UsageSPInf, # infer usage information here in case we need it later.
+ # (add more of these where you need them --KSW 1999-04)
'-fsimplify',
'[',
- '-finline-phase2',
- $Oopt_MaxSimplifierIterations,
+ # Need inline-phase2 here so that build/augment get
+ # inlined. I found that spectral/hartel/genfft lost some useful
+ # strictness in the function sumcode' if augment is not inlined
+ # before strictness analysis runs
+
+ '-finline-phase2',
+ $Oopt_MaxSimplifierIterations,
']',
+
'-fstrictness',
'-fcpr-analyse',
'-fworker-wrapper',
# No -finline-phase: allow all Ids to be inlined now
']',
+ '-fcse', # CSE must immediately follow a simplification pass, because it relies
+ # on the no-shadowing invariant. See comments at the top of CSE.lhs
+
+ '-ffull-laziness', # nofib/spectral/hartel/wang doubles in speed if you
+ # do full laziness late in the day. It only happens
+ # after fusion and other stuff, so the early pass doesn't
+ # catch it. For the record, the redex is
+ # f_el22 (f_el21 r_midblock)
'-ffloat-inwards',
# Case-liberation for -O2. This should be after
'-fsimplify',
'[',
$Oopt_MaxSimplifierIterations,
+ # No -finline-phase: allow all Ids to be inlined now
']',
# '-fstatic-args',
# PROFILING stuff after argv mangling:
if ( ! $PROFing ) {
- # warn about any scc exprs found (in case scc used as identifier)
- push(@HsP_flags, '-W');
-
# add -auto sccs even if not profiling !
push(@HsC_flags, $UNPROFscc_auto) if $UNPROFscc_auto;
# Ignore user sccs when auto annotating, but warn when doing so.
$PROFignore_scc = '-W' if $PROFauto;
-
- push(@HsP_flags, (($PROFignore_scc) ? $PROFignore_scc : '-S'));
}
#if ( $BuildTag ne '' ) {
# local($b) = $BuildDescr{$BuildTag};
$BuildTag = '_t';
} elsif ( $UNREGing eq 'u' ) {
- $BuildTag = '_u';
+ if ($GhcWithRegisterised eq 'YES') {
+ $BuildTag = '_u';
+ }
}
-
\end{code}
After the sanity checks, add flags to the necessary parts of the driver pipeline:
,'-u', "${uscore}PrelPack_unpackCString_closure"
,'-u', "${uscore}PrelException_stackOverflow_closure"
,'-u', "${uscore}PrelException_heapOverflow_closure"
+ ,'-u', "${uscore}PrelException_NonTermination_static_closure"
));
if (!$NoHaskellMain) {
unshift (@Ld_flags,'-u', "${uscore}PrelMain_mainIO_closure");
sub runHsc {
local($ifile_root, $hsc_out, $hsc_hi, $hsc_out_c_stub, $hsc_out_h_stub, $going_interactive) = @_;
- # prepend comma to HsP flags (so hsc can tell them apart...)
- foreach $a ( @HsP_flags ) { $a = ",$a" unless $a =~ /^,/; }
-
&makeHiMap() unless $HiMapDone;
push(@HsC_flags, "-himap=$HiIncludeString");
open(OPTS, "> $Tmp_prefix.opts") || &tidy_up_and_die(1,"Can't open $Tmp_prefix.opts\n");
print OPTS "$dump @HsC_flags $CoreLint $USPLint $StgLint $Verbose";
close(OPTS);
- $to_do = "$HsC @HsP_flags ,$hscpp_hsc \@$Tmp_prefix.opts $output +RTS @HsC_rts_flags";
+ $to_do = "$HsC $hscpp_hsc \@$Tmp_prefix.opts $output +RTS @HsC_rts_flags";
} else {
- $to_do = "$HsC @HsP_flags ,$hscpp_hsc $dump @HsC_flags $CoreLint $USPLint $StgLint $Verbose $output +RTS @HsC_rts_flags";
+ $to_do = "$HsC $hscpp_hsc $dump @HsC_flags $CoreLint $USPLint $StgLint $Verbose $output +RTS @HsC_rts_flags";
}
&run_something($to_do, 'Haskell compiler');
/^-optP(.*)$/ && do { push(@HsCpp_flags, $1); next arg; };
/^-optCrts(.*)$/&& do { push(@HsC_rts_flags, $1); next arg; };
/^-optC(.*)$/ && do { push(@HsC_flags, $1); next arg; };
- /^-optp(.*)$/ && do { push(@HsP_flags, $1); next arg; };
/^-optcpp(.*)$/ && do { push(@Cpp_define, $1); $Only_preprocess_hc = ($1 eq "-E"); next arg; };
/^-optc(.*)$/ && do { push(@CcBoth_flags, $1); next arg; };
/^-opta(.*)$/ && do { push(@As_flags, $1); next arg; };
/^-fallow-overlapping-instances$/ && do { push(@HsC_flags, $_); next arg; };
/^-fallow-undecidable-instances$/ && do { push(@HsC_flags, $_); next arg; };
/^-fhistory-size.*$/ && do { push(@HsC_flags, $_); next arg; };
+ /^-fdicts-strict$/ && do { push(@HsC_flags, $_); next arg; };
/^-fglasgow-exts$/
&& do { push(@HsC_flags, $_);
- push(@HsP_flags, '-N');
# -fglasgow-exts implies -syslib exts
&add_syslib('exts');
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