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[smlnj] Annotation of /sml/trunk/src/compiler/FLINT/ChangeLog
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Annotation of /sml/trunk/src/compiler/FLINT/ChangeLog

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Revision 540 - (view) (download)

1 : monnier 540 2000-02-18 Stefan Monnier <monnier@cs.yale.edu>
2 :    
3 :     * opt/switchoff.sml (inside/LET): use IH_MAYBE instead of IH_ALWAYS.
4 :    
5 : monnier 529 2000-01-31 Stefan Monnier <monnier@cs.yale.edu>
6 :    
7 :     * opt/fcontract.sml (fcLet/cassoc): don't do a second pass over the output
8 :     of the rewrite. It leads to quadratic behavior for `x1 andalso x2 ...'.
9 :    
10 : monnier 489 1999-07-10 Stefan Monnier <monnier@cs.yale.edu>
11 :    
12 :     * opt/split.sml: don't burp when you can't split.
13 :    
14 : monnier 220 1999-03-08 Stefan Monnier <monnier@cs.yale.edu>
15 :    
16 :     * opt/split.sml (sexp): don't split HANDLE (it's incorrect).
17 :     (funeffect): embryo to detect side-effect free APPs (non-functional).
18 :     (splitThreshold): to put a cap on inlining.
19 : monnier 523 (stfn): don't bother splitting inlinable TFNs.
20 : monnier 220
21 :     * main/control.sml (splitThreshold): new var.
22 :    
23 :     * opt/specialize (kBnd): be more conservative with nvars (it's too
24 :     conservative, now).
25 :    
26 :     * opt/fixfix.sml (curry): fixed bug when uncurrying cooked functions.
27 :    
28 :     * opt/fcontract.sml (fcFun): fix bug when undertaking mut-rec functions.
29 :    
30 :     * main/flintcomp.sml: added `recover' to help debugging.
31 :     updated the fold to allow extraction of Fi and return it at the end.
32 :    
33 :     * lsplit/ls-inline.sml (oneBranch): fixed the wrapper function.
34 :    
35 :     * flint/flintutil.sml (freevars): forgot to count the arg of SWITCH.
36 :    
37 :     * flint/flint.sig: added a tfkind to TFN (only inlining for now).
38 :    
39 :     * main/control.sml: new file. Moved from TopLevel/viscomp/control.sml
40 :    
41 :     1999-03-04 Stefan Monnier <monnier@cs.yale.edu>
42 :    
43 :     * kernel/ltyextern.sml (tnarrow), reps/{reify,rttype,typeoper}.sml:
44 :     flatten arguments when reifying them since the pretty-printer doesn't
45 :     know how to deal with flattened reified TFNs.
46 :    
47 :     1999-03-02 Stefan Monnier <monnier@cs.yale.edu>
48 :    
49 :     * kernel/ltyextern.sml (tnarrow), reps/{reify,rttype,typeoper}.sml:
50 :     don't unflatten arguments when reifying them.
51 :    
52 :     1999-02-28 Stefan Monnier <monnier@cs.yale.edu>
53 :    
54 :     * opt/fcontract.sml (fcEta): do the known->unknown eta-reduce if the
55 :     `known' function is not locally defined (in which case the known/unknown
56 :     distinction is pointless anyway).
57 :     (wrap): don't forget to junk dead inlinable functions.
58 :    
59 :     1999-02-26 Stefan Monnier <monnier@cs.yale.edu>
60 :    
61 :     * opt/split.sml: seriously reworked. Now splits TFNs as well.
62 :    
63 :     1999-02-25 Stefan Monnier <monnier@cs.yale.edu>
64 :    
65 :     * kernel/primop.sml (effect): removed DEREF and MAKEREF from the pure
66 :     primops.
67 :    
68 :     1999-02-24 Stefan Monnier <monnier@cs.yale.edu>
69 :    
70 :     * flint/flintutil.sml (copy): sort the type-map since {lt,tc}_subst
71 :     actually expects it to be sorted.
72 :    
73 :     1999-02-23 Stefan Monnier <monnier@cs.yale.edu>
74 :    
75 :     * opt/recover.sml (lt_nvpoly): moved to ltyextern.sml
76 :    
77 :     * kernel/ltyextern.{sml,sig} (lt_nvpoly): new function (digged from
78 :     recover.sml to build a LT_POLY in the case of named tvars.
79 :    
80 :     1999-02-20 Stefan Monnier <monnier@cs.yale.edu>
81 :    
82 :     * opt/recover.sml: removed unused depth arguments left behind from before
83 :     we switched to named tvars.
84 :     (addLty): added for the benefit of opt/split.sml
85 :    
86 :     1999-02-17 Stefan Monnier <monnier@cs.yale.edu>
87 :    
88 :     * opt/split.sml: new file. Does the lambda-splitting for cross-module
89 :     inlining. Currently in a simplified form.
90 :    
91 :     * opt/fcontract.sml (fcEta): bug with (mutually) recursive eta redexes.
92 :    
93 : monnier 203 1998-12-18 Stefan Monnier <monnier@cs.yale.edu>
94 :    
95 :     * opt/fcontract.sml: turned fcFun into a foldable function.
96 :    
97 :     1998-12-17 Stefan Monnier <monnier@cs.yale.edu>
98 :    
99 :     * opt/loopify.sml: fix (TR-ing would fail if not LR-ing also)
100 :    
101 :     1998-12-16 Stefan Monnier <monnier@cs.yale.edu>
102 :    
103 :     * opt/loopify.sml: make dropinvariant optional.
104 :    
105 :     1998-12-15 Stefan Monnier <monnier@cs.yale.edu>
106 :    
107 :     * opt/loopify.sml: drop invariant arguments in loops.
108 :    
109 :     * opt/optutils.sml (filter): curried.
110 :    
111 : monnier 202 1998-12-12 Stefan Monnier <monnier@cs.yale.edu>
112 :    
113 :     * opt/fcontract.sml (fcFun): value-specialization (turned off: useless)
114 :     (fcApp): use IH_MAYBE.
115 :    
116 :     * opt/fixfix.sml: improved the inlining heuristic by using the IH_MAYBE.
117 :    
118 :     1998-11-29 Stefan Monnier <monnier@cs.yale.edu>
119 :    
120 :     * opt/fcontract.sml (fcFun): only update the binding (after contracting
121 :     the function) if there are more functions to contract (the unusual case)
122 :    
123 :     1998-11-28 Stefan Monnier <monnier@cs.yale.edu>
124 :    
125 :     * opt/[lf]contract.sml,collect.sml: use PO.purePrimop
126 :    
127 :     * opt/fcontract.sml: generalized the BRANCH thing.
128 :     It should now be faster to detect and avoid potential code blowups while
129 :     applying to more cases. But it requires one more pass to generate the
130 :     same code quality :-(
131 :     (fcexp): straightforward split into functions
132 :     (fcLet): do the BRANCH thing after contraction (plus force an additional
133 :     contraction, so the total is 3 passes for a fairly good handling of
134 :     wrap's equality-primop compilation)
135 :     (fcLet): drop TAPP if the output is unused.
136 :    
137 :     1998-11-25 Stefan Monnier <monnier@cs.yale.edu>
138 :    
139 :     * opt/loopify.sml: improved tail-calls recognition.
140 :     Also be more careful about wrapping loops into functions (so contraction
141 :     is not needed to cleanup).
142 :    
143 :     * opt/fixfix.sml: pretend loops are smaller to increase their inlining.
144 :    
145 :     * kernel/ltyextern.sml: commented out Stats calls.
146 :    
147 :     * flint/flint.sig: changed LK_WHILE to LK_TAIL.
148 :    
149 : monnier 197 1998-11-21 Stefan Monnier <monnier@cs.yale.edu>
150 :    
151 :     * reps/rttype.sml: changes from Bratin.
152 :     (rtLexp): define the NVAR case (return the tvar as an lvar).
153 :    
154 :     * opt/[fl]contract.sml: removed the restriction on inlining at the same
155 :     deBruijn depth.
156 :    
157 :     * opt/lift.sml: new file for typelifting.
158 :    
159 :     * flint/flintutil.sml (copy): added tvar renaming.
160 :    
161 :     * flint/tvarcvt.sml: new file for named tvar <-> deBruijn conversions.
162 :    
163 : monnier 191 1998-11-19 Stefan Monnier <monnier@cs.yale.edu>
164 :    
165 :     * opt/loopify.sml: new file
166 :    
167 :     * cps/convert.sml: added code to take advantage of LK_WHILE loops.
168 :    
169 :     * opt/optutils.sml (id): removed. That was stupid.
170 :    
171 :     * opt/collect.sml: drop support for actuals (was only used for cstargs).
172 :    
173 :     * opt/lcontract.sml (lpfd): reset the inline bit to a safe value.
174 :    
175 :     * opt/fcontract.sml (cstargs): eliminated. Might reappear in a
176 :     specialization phase some day.
177 :     (inline): turned off unrolling because it's buggy.
178 :     (APP): use the new ifs, damit!
179 :    
180 : monnier 187 1998-11-11 Stefan Monnier <monnier@cs.yale.edu>
181 :    
182 : monnier 189 * opt/fcontract.sml (sval): ref svals rather than going through F.value
183 :    
184 : monnier 187 * opt/collect.sml: switched back to a read-only collect phase. Also try
185 :     to export the info to allow fcontract to circumvent some of the get calls.
186 :     (info): got rid of Transfer by using the intmap for redirection.
187 :     (unuselexp): junk the fundec part.
188 :     (unuse): return a boolean instead of calling an undertaker.
189 :    
190 : monnier 185 1998-11-09 Stefan Monnier <monnier@cs.yale.edu>
191 :    
192 :     * opt/fcontract.sml: take advantage of single-arm SWITCH (aka decon)
193 :     (SWITCH(CON)): just compare the conreps because types may differ (?)
194 :     (inlineWitness): ugly hack used to figure out if inlining happened,
195 :     in order to decide whether to keep the inline bit or not (in cfun).
196 :    
197 : monnier 184 1998-11-06 Stefan Monnier <monnier@cs.yale.edu>
198 :    
199 :     * opt/fcontract.sml: added unrolling support
200 :    
201 :     * reps/coerce.sml: replaced FK_FCT by fkfct, itself defined "sanely"
202 :    
203 :     * opt/fixfix.sml: adapted to the new fkind and introduced unrolling
204 :    
205 :     1998-11-05 Stefan Monnier <monnier@cs.yale.edu>
206 :    
207 :     * flint/flint.sig: changed fkind to have most annotations valid on
208 :     functors as well. It also adds a loopkind annotation as well as extends
209 :     the inline boolean into a three-way alternative.
210 :    
211 : monnier 164 1998-10-30 Stefan Monnier <monnier@cs.yale.edu>
212 :    
213 :     * opt/fcontract.sml (dropcstargs): replace constant args by the constant.
214 : monnier 184 (cexp): switched to a continuation passing style to implement the
215 :     let-associativity rule in a better way.
216 : monnier 164
217 : monnier 189 * opt/fixfix.sml (curry): correctly handle "impossible" cases.
218 : monnier 164
219 :     * opt/collect.sml: completely revisited: no distinction between
220 :     internal/external uses, dead-code elimination done right away. This
221 :     makes fcontract a little simpler.
222 :    
223 : monnier 163 1998-10-28 Stefan Monnier <monnier@cs.yale.edu>
224 :    
225 :     * opt/fcontract.sml (inline): do simple inlining only for non-isrec
226 :     functions (to ensure we never silently turn external uses into internal
227 :     uses) and correspondingly change the agressive inlining to inline
228 :     non-inlinable functions as long as its their last use.
229 :     (dropargs): new functions to drop unused arguments.
230 :    
231 :    
232 : monnier 162 1998-10-27 Stefan Monnier <monnier@cs.yale.edu>
233 :    
234 : monnier 163 * opt/optutils.sml: trying to reuse code between fixfix and fcontract.
235 :    
236 :     * opt/collect.sml (called): added for eta-expand.
237 :    
238 :     * opt/fcontract.sml (inline): allow single inlining of FK_FCT.
239 :    
240 : monnier 162 * lsplit/ls-inline.sml: don't call lcontract anymore.
241 :    
242 :     1998-10-26 Stefan Monnier <monnier@cs.yale.edu>
243 :    
244 :     * cps/cpstrans.sml (spillOut): fix from Zhong.
245 :    
246 :     * cpsopt/cpsopt.sml: use Control.CG.cpsopt and fold over it.
247 :    
248 :     * main/flintcomp.sml: use Control.FLINT.phases and fold over it.
249 :    
250 :     * opt/fixfix.sml (curry): use Control.FLINT.maxargs to bound the uncurrying

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