Changeset: 391b643810b9 for MonetDB
URL: https://dev.monetdb.org/hg/MonetDB/rev/391b643810b9
Modified Files:
clients/Tests/MAL-signatures.stable.out
clients/Tests/MAL-signatures.stable.out.int128
clients/Tests/exports.stable.out
gdk/gdk_group.c
monetdb5/optimizer/opt_mergetable.c
monetdb5/optimizer/opt_prelude.c
monetdb5/optimizer/opt_prelude.h
sql/backends/monet5/for.c
sql/backends/monet5/rel_bin.c
sql/backends/monet5/sql.c
sql/backends/monet5/sql_statement.c
sql/backends/monet5/sql_statement.h
sql/test/BugTracker-2010/Tests/LIMIT_OFFSET_big-endian.Bug-2622.test
Branch: pushcands
Log Message:
Merged with default
diffs (truncated from 3728 to 300 lines):
diff --git a/clients/Tests/MAL-signatures.stable.out
b/clients/Tests/MAL-signatures.stable.out
--- a/clients/Tests/MAL-signatures.stable.out
+++ b/clients/Tests/MAL-signatures.stable.out
@@ -7126,6 +7126,15 @@ stdout of test 'MAL-signatures` in direc
[ "color", "value", "command color.value(X_0:color):flt ",
"CLRvalue;", "Extracts value component from a color atom" ]
[ "color", "value", "command color.value(X_0:color):int ",
"CLRvalueInt;", "Extracts value component from a color atom" ]
[ "color", "ycc", "command color.ycc(X_0:int, X_1:int, X_2:int):color ",
"CLRycc;", "Converts an YCC triplets to a color atom" ]
+[ "dict", "compress", "pattern dict.compress(X_0:bat[:any_1])
(X_1:bat[:any], X_2:bat[:any_1]) ", "DICTcompress;", "dict compress
a bat" ]
+[ "dict", "compress", "pattern dict.compress(X_0:str, X_1:str,
X_2:str):void ", "DICTcompress_col;", "compress a sql column" ]
+[ "dict", "compress", "pattern dict.compress(X_0:str, X_1:str,
X_2:str, X_3:bit):void ", "DICTcompress_col;", "compress a sql column" ]
+[ "dict", "convert", "pattern
dict.convert(X_0:bat[:any]):bat[:any_1] ", "DICTconvert;", "convert
candidate list into compressed offsets" ]
+[ "dict", "decompress", "pattern dict.decompress(X_0:bat[:any],
X_1:bat[:any_1]):bat[:any_1] ", "DICTdecompress;", "decompress a
dictionary compressed (sub)column" ]
+[ "dict", "join", "pattern dict.join(X_0:bat[:any], X_1:bat[:any_1],
X_2:bat[:any], X_3:bat[:any_1], X_4:bat[:oid], X_5:bat[:oid], X_6:bit, X_7:lng)
(X_8:bat[:oid], X_9:bat[:oid]) ", "DICTjoin;", "join 2 dictionaries" ]
+[ "dict", "renumber", "pattern dict.renumber(X_0:bat[:any_1],
X_1:bat[:any_1]):bat[:any_1] ", "DICTrenumber;", "renumber offsets"
]
+[ "dict", "select", "pattern dict.select(X_0:bat[:any],
X_1:bat[:oid], X_2:bat[:any_1], X_3:any_1, X_4:any_1, X_5:bit, X_6:bit,
X_7:bit, X_8:bit):bat[:oid] ", "DICTselect;", "value - range select on a
dictionary" ]
+[ "dict", "thetaselect", "pattern dict.thetaselect(X_0:bat[:any],
X_1:bat[:oid], X_2:bat[:any_1], X_3:any_1, X_4:str):bat[:oid] ",
"DICTthetaselect;", "thetaselect on a dictionary" ]
[ "factories", "getArrival", "command factories.getArrival():bat[:timestamp]
", "FCTgetArrival;", "Retrieve the time stamp the last call was
made." ]
[ "factories", "getCaller", "command factories.getCaller():int ",
"FCTgetCaller;", "Retrieve the unique identity of the factory caller."
]
[ "factories", "getDeparture", "command
factories.getDeparture():bat[:timestamp] ", "FCTgetDeparture;",
"Retrieve the time stamp the last answer was returned." ]
@@ -7138,6 +7147,8 @@ stdout of test 'MAL-signatures` in direc
[ "fits", "listdir", "unsafe pattern fits.listdir(X_0:str):void ",
"FITSdir;", "Attach all FITS files in the directory" ]
[ "fits", "listdirpattern", "unsafe pattern
fits.listdirpattern(X_0:str, X_1:str):void ", "FITSdirpat;", "Attach all
FITS file in the directory, giving a pattern" ]
[ "fits", "load", "unsafe pattern fits.load(X_0:str):void ",
"FITSloadTable;", "Load a FITS table from an attached file" ]
+[ "for", "compress", "pattern for.compress(X_0:str, X_1:str,
X_2:str):void ", "FORcompress_col;", "compress a sql column"]
+[ "for", "decompress", "pattern for.decompress(X_0:bat[:any],
X_1:any_1):bat[:any_1] ", "FORdecompress;", "decompress a for
compressed (sub)column" ]
[ "generator", "join", "pattern generator.join(X_0:bat[:bte], X_1:bat[:bte])
(X_2:bat[:oid], X_3:bat[:oid]) ", "VLTgenerator_join;", "" ]
[ "generator", "join", "pattern generator.join(X_0:bat[:dbl], X_1:bat[:dbl])
(X_2:bat[:oid], X_3:bat[:oid]) ", "VLTgenerator_join;", "Overloaded join
operation" ]
[ "generator", "join", "pattern generator.join(X_0:bat[:flt], X_1:bat[:flt])
(X_2:bat[:oid], X_3:bat[:oid]) ", "VLTgenerator_join;", "" ]
@@ -7765,11 +7776,15 @@ stdout of test 'MAL-signatures` in direc
[ "optimizer", "default_pipe", "function optimizer.default_pipe():void;",
"", "" ]
[ "optimizer", "defaultfast", "pattern optimizer.defaultfast():str ",
"OPTwrapper;", "" ]
[ "optimizer", "defaultfast", "pattern optimizer.defaultfast(X_0:str,
X_1:str):str ", "OPTwrapper;", "Fast compound default optimizer pipe" ]
+[ "optimizer", "dict", "pattern optimizer.dict():str ", "OPTwrapper;",
"" ]
+[ "optimizer", "dict", "pattern optimizer.dict(X_0:str, X_1:str):str ",
"OPTwrapper;", "Push dict decompress down" ]
[ "optimizer", "emptybind", "pattern optimizer.emptybind():str ",
"OPTwrapper;", "" ]
[ "optimizer", "emptybind", "pattern optimizer.emptybind(X_0:str,
X_1:str):str ", "OPTwrapper;", "Evaluate empty set expressions" ]
[ "optimizer", "epilogue", "command optimizer.epilogue():void ",
"optimizer_epilogue;", "release the resources held by the optimizer module"
]
[ "optimizer", "evaluate", "pattern optimizer.evaluate():str ",
"OPTwrapper;", "" ]
[ "optimizer", "evaluate", "pattern optimizer.evaluate(X_0:str,
X_1:str):str ", "OPTwrapper;", "Evaluate constant expressions once" ]
+[ "optimizer", "for", "pattern optimizer.for():str ", "OPTwrapper;", ""
]
+[ "optimizer", "for", "pattern optimizer.for(X_0:str, X_1:str):str ",
"OPTwrapper;", "Push for decompress down" ]
[ "optimizer", "garbageCollector", "pattern
optimizer.garbageCollector():str ", "OPTwrapper;", "" ]
[ "optimizer", "garbageCollector", "pattern
optimizer.garbageCollector(X_0:str, X_1:str):str ", "OPTwrapper;", "Garbage
collector optimizer" ]
[ "optimizer", "generator", "pattern optimizer.generator():str ",
"OPTwrapper;", "" ]
diff --git a/clients/Tests/MAL-signatures.stable.out.int128
b/clients/Tests/MAL-signatures.stable.out.int128
--- a/clients/Tests/MAL-signatures.stable.out.int128
+++ b/clients/Tests/MAL-signatures.stable.out.int128
@@ -10008,6 +10008,15 @@ stdout of test 'MAL-signatures` in direc
[ "color", "value", "command color.value(X_0:color):flt ",
"CLRvalue;", "Extracts value component from a color atom" ]
[ "color", "value", "command color.value(X_0:color):int ",
"CLRvalueInt;", "Extracts value component from a color atom" ]
[ "color", "ycc", "command color.ycc(X_0:int, X_1:int, X_2:int):color ",
"CLRycc;", "Converts an YCC triplets to a color atom" ]
+[ "dict", "compress", "pattern dict.compress(X_0:bat[:any_1])
(X_1:bat[:any], X_2:bat[:any_1]) ", "DICTcompress;", "dict compress
a bat" ]
+[ "dict", "compress", "pattern dict.compress(X_0:str, X_1:str,
X_2:str):void ", "DICTcompress_col;", "compress a sql column" ]
+[ "dict", "compress", "pattern dict.compress(X_0:str, X_1:str,
X_2:str, X_3:bit):void ", "DICTcompress_col;", "compress a sql column" ]
+[ "dict", "convert", "pattern
dict.convert(X_0:bat[:any]):bat[:any_1] ", "DICTconvert;", "convert
candidate list into compressed offsets" ]
+[ "dict", "decompress", "pattern dict.decompress(X_0:bat[:any],
X_1:bat[:any_1]):bat[:any_1] ", "DICTdecompress;", "decompress a
dictionary compressed (sub)column" ]
+[ "dict", "join", "pattern dict.join(X_0:bat[:any], X_1:bat[:any_1],
X_2:bat[:any], X_3:bat[:any_1], X_4:bat[:oid], X_5:bat[:oid], X_6:bit, X_7:lng)
(X_8:bat[:oid], X_9:bat[:oid]) ", "DICTjoin;", "join 2 dictionaries" ]
+[ "dict", "renumber", "pattern dict.renumber(X_0:bat[:any_1],
X_1:bat[:any_1]):bat[:any_1] ", "DICTrenumber;", "renumber offsets"
]
+[ "dict", "select", "pattern dict.select(X_0:bat[:any],
X_1:bat[:oid], X_2:bat[:any_1], X_3:any_1, X_4:any_1, X_5:bit, X_6:bit,
X_7:bit, X_8:bit):bat[:oid] ", "DICTselect;", "value - range select on a
dictionary" ]
+[ "dict", "thetaselect", "pattern dict.thetaselect(X_0:bat[:any],
X_1:bat[:oid], X_2:bat[:any_1], X_3:any_1, X_4:str):bat[:oid] ",
"DICTthetaselect;", "thetaselect on a dictionary" ]
[ "factories", "getArrival", "command factories.getArrival():bat[:timestamp]
", "FCTgetArrival;", "Retrieve the time stamp the last call was
made." ]
[ "factories", "getCaller", "command factories.getCaller():int ",
"FCTgetCaller;", "Retrieve the unique identity of the factory caller."
]
[ "factories", "getDeparture", "command
factories.getDeparture():bat[:timestamp] ", "FCTgetDeparture;",
"Retrieve the time stamp the last answer was returned." ]
@@ -10017,9 +10026,11 @@ stdout of test 'MAL-signatures` in direc
[ "fits", "attach", "unsafe pattern fits.attach(X_0:str):void ",
"FITSattach;", "Open a FITS file and return catalog of the table HDUs" ]
[ "fits", "export", "pattern fits.export(X_0:str):void ",
"FITSexportTable;", "Export a table to a FITS file" ]
[ "fits", "fitstest", "command fits.fitstest(X_0:str):int ",
"FITStest;", "Returns the type of first extension in the FITS file filename"
]
-[ "fits", "listdir", "unsafe pattern fits.listdir(X_0:str):void ",
"FITSdir;", "Attach all FITS files in the directory" ]
-[ "fits", "listdirpattern", "unsafe pattern
fits.listdirpattern(X_0:str, X_1:str):void ", "FITSdirpat;", "Attach all
FITS file in the directory, giving a pattern" ]
-[ "fits", "load", "unsafe pattern fits.load(X_0:str):void ",
"FITSloadTable;", "Load a FITS table from an attached file" ]
+[ "fits", "listdir", "pattern fits.listdir(X_0:str):void ",
"FITSdir;", "Attach all FITS files in the directory" ]
+[ "fits", "listdirpattern", "pattern fits.listdirpattern(X_0:str,
X_1:str):void ", "FITSdirpat;", "Attach all FITS file in the directory,
giving a pattern" ]
+[ "fits", "load", "pattern fits.load(X_0:str):void ",
"FITSloadTable;", "Load a FITS table from an attached file" ]
+[ "for", "compress", "pattern for.compress(X_0:str, X_1:str,
X_2:str):void ", "FORcompress_col;", "compress a sql column"]
+[ "for", "decompress", "pattern for.decompress(X_0:bat[:any],
X_1:any_1):bat[:any_1] ", "FORdecompress;", "decompress a for
compressed (sub)column" ]
[ "generator", "join", "pattern generator.join(X_0:bat[:bte], X_1:bat[:bte])
(X_2:bat[:oid], X_3:bat[:oid]) ", "VLTgenerator_join;", "" ]
[ "generator", "join", "pattern generator.join(X_0:bat[:dbl], X_1:bat[:dbl])
(X_2:bat[:oid], X_3:bat[:oid]) ", "VLTgenerator_join;", "Overloaded join
operation" ]
[ "generator", "join", "pattern generator.join(X_0:bat[:flt], X_1:bat[:flt])
(X_2:bat[:oid], X_3:bat[:oid]) ", "VLTgenerator_join;", "" ]
@@ -10661,11 +10672,15 @@ stdout of test 'MAL-signatures` in direc
[ "optimizer", "default_pipe", "function optimizer.default_pipe():void;",
"", "" ]
[ "optimizer", "defaultfast", "pattern optimizer.defaultfast():str ",
"OPTwrapper;", "" ]
[ "optimizer", "defaultfast", "pattern optimizer.defaultfast(X_0:str,
X_1:str):str ", "OPTwrapper;", "Fast compound default optimizer pipe" ]
+[ "optimizer", "dict", "pattern optimizer.dict():str ", "OPTwrapper;",
"" ]
+[ "optimizer", "dict", "pattern optimizer.dict(X_0:str, X_1:str):str ",
"OPTwrapper;", "Push dict decompress down" ]
[ "optimizer", "emptybind", "pattern optimizer.emptybind():str ",
"OPTwrapper;", "" ]
[ "optimizer", "emptybind", "pattern optimizer.emptybind(X_0:str,
X_1:str):str ", "OPTwrapper;", "Evaluate empty set expressions" ]
[ "optimizer", "epilogue", "command optimizer.epilogue():void ",
"optimizer_epilogue;", "release the resources held by the optimizer module"
]
[ "optimizer", "evaluate", "pattern optimizer.evaluate():str ",
"OPTwrapper;", "" ]
[ "optimizer", "evaluate", "pattern optimizer.evaluate(X_0:str,
X_1:str):str ", "OPTwrapper;", "Evaluate constant expressions once" ]
+[ "optimizer", "for", "pattern optimizer.for():str ", "OPTwrapper;", ""
]
+[ "optimizer", "for", "pattern optimizer.for(X_0:str, X_1:str):str ",
"OPTwrapper;", "Push for decompress down" ]
[ "optimizer", "garbageCollector", "pattern
optimizer.garbageCollector():str ", "OPTwrapper;", "" ]
[ "optimizer", "garbageCollector", "pattern
optimizer.garbageCollector(X_0:str, X_1:str):str ", "OPTwrapper;", "Garbage
collector optimizer" ]
[ "optimizer", "generator", "pattern optimizer.generator():str ",
"OPTwrapper;", "" ]
diff --git a/clients/Tests/exports.stable.out b/clients/Tests/exports.stable.out
--- a/clients/Tests/exports.stable.out
+++ b/clients/Tests/exports.stable.out
@@ -901,6 +901,7 @@ const char *columnRef;
const char *comment_onRef;
const char *commitRef;
str compileString(Symbol *fcn, Client c, str s);
+const char *compressRef;
char *concatErrors(char *err1, const char *err2) __attribute__((__nonnull__(1,
2))) __attribute__((__returns_nonnull__));
const char *connectRef;
const char *contextRef;
@@ -934,6 +935,7 @@ const char *dateRef;
const char *dblRef;
str deblockdataflow(Client cntxt, MalBlkPtr mb, MalStkPtr stk, InstrPtr pci);
void debugFunction(stream *fd, MalBlkPtr mb, MalStkPtr stk, int flg, int
first, int size);
+const char *decompressRef;
int defConstant(MalBlkPtr mb, int type, ValPtr cst);
const char *defineRef;
void delArgument(InstrPtr p, int varid);
@@ -944,6 +946,7 @@ const char *deltaRef;
const char *dense_rankRef;
const char *deregisterRef;
malType destinationType(MalBlkPtr mb, InstrPtr p);
+const char *dictRef;
const char *diffRef;
const char *diffcandRef;
const char *differenceRef;
@@ -985,6 +988,7 @@ const char *first_valueRef;
const char *firstnRef;
Module fixModule(const char *nme);
int fndConstant(MalBlkPtr mb, const ValRecord *cst, int depth);
+const char *forRef;
void freeException(str);
void freeInstruction(InstrPtr p);
void freeMalBlk(MalBlkPtr mb);
@@ -1296,6 +1300,7 @@ const char *rename_columnRef;
const char *rename_schemaRef;
const char *rename_tableRef;
const char *rename_userRef;
+const char *renumberRef;
const char *replaceRef;
const char *replicatorRef;
void resetMalBlk(MalBlkPtr mb);
diff --git a/gdk/gdk_bbp.c b/gdk/gdk_bbp.c
--- a/gdk/gdk_bbp.c
+++ b/gdk/gdk_bbp.c
@@ -2082,11 +2082,11 @@ BBPdir_step(bat bid, BUN size, int n, ch
}
}
if (!found) {
- TRC_WARNING(GDK, "file %s not
found (expected size %zu)\n", fname, free);
+ TRC_WARNING(GDK, "file %s not
found (expected size %" PRIu64 ")\n", fname, free);
} else {
assert((uint64_t) stb.st_size
>= free);
if ((uint64_t) stb.st_size <
free)
- TRC_WARNING(GDK, "file
%s too small (expected %zu, actual %zu)\n", fname, free, (size_t) stb.st_size);
+ TRC_WARNING(GDK, "file
%s too small (expected %" PRIu64 ", actual %zu)\n", fname, free, (size_t)
stb.st_size);
}
GDKfree(fname);
if (vfree == 0)
@@ -2114,7 +2114,7 @@ BBPdir_step(bat bid, BUN size, int n, ch
}
assert((uint64_t) stb.st_size >= vfree);
if ((uint64_t) stb.st_size < vfree)
- TRC_WARNING(GDK, "file %s too
small (expected %zu, actual %zu)\n", fname, vfree, (size_t) stb.st_size);
+ TRC_WARNING(GDK, "file %s too
small (expected %" PRIu64 ", actual %zu)\n", fname, vfree, (size_t)
stb.st_size);
GDKfree(fname);
break;
}
diff --git a/gdk/gdk_group.c b/gdk/gdk_group.c
--- a/gdk/gdk_group.c
+++ b/gdk/gdk_group.c
@@ -598,6 +598,54 @@ ctz(oid x)
/* EQUAL */ cmp(v, BUNtail(bi, hb)) == 0 \
)
+#define GRP_small_values(BG, BV, GV) \
+ do { \
+ uint##BG##_t sgrps[1 << BG]; \
+ const uint##BV##_t *restrict w = (const uint##BV##_t *)
bi.base; \
+ uint##BG##_t v; \
+ memset(sgrps, 0xFF, sizeof(sgrps)); \
+ if (histo) \
+ memset(cnts, 0, maxgrps * sizeof(lng)); \
+ ngrp = 0; \
+ gn->tsorted = true; \
+ if (ci.tpe == cand_dense) { \
+ TIMEOUT_LOOP_IDX(r, cnt, timeoffset) { \
+ oid o = canditer_next_dense(&ci); \
+ p = o - b->hseqbase; \
+ uint##BG##_t x = GV; \
+ if ((v = sgrps[x]) == (uint##BG##_t) ~0 && ngrp
< (1 << BG)) { \
+ sgrps[x] = v = (uint##BG##_t) ngrp++; \
+ maxgrppos = r; \
+ if (extents) \
+ exts[v] = ci.hseq + r;
\
+ } \
+ ngrps[r] = v; \
+ if (r > 0 && v < ngrps[r - 1]) \
+ gn->tsorted = false; \
+ if (histo) \
+ cnts[v]++; \
+ } \
+ } else { \
+ TIMEOUT_LOOP_IDX(r, cnt, timeoffset) { \
+ oid o = canditer_next(&ci); \
+ p = o - b->hseqbase; \
+ uint##BG##_t x = GV; \
+ if ((v = sgrps[x]) == (uint##BG##_t) ~0 && ngrp
< (1 << BG)) { \
+ sgrps[x] = v = (uint##BG##_t) ngrp++; \
+ maxgrppos = r; \
+ if (extents) \
+ exts[v] = ci.hseq + r;
\
+ } \
+ ngrps[r] = v; \
+ if (r > 0 && v < ngrps[r - 1]) \
+ gn->tsorted = false; \
+ if (histo) \
+ cnts[v]++; \
+ } \
+ } \
+ TIMEOUT_CHECK(timeoffset, \
+ GOTO_LABEL_TIMEOUT_HANDLER(error)); \
+ } while (0)
gdk_return
BATgroup_internal(BAT **groups, BAT **extents, BAT **histo,
@@ -691,9 +739,8 @@ BATgroup_internal(BAT **groups, BAT **ex
}
assert(!BATtdense(b));
if (g) {
- if (BATtdense(g))
- maxgrp = g->tseqbase + BATcount(g);
- else if (BATtordered(g))
+ assert(!BATtdense(g));
+ if (BATtordered(g))
maxgrp = * (oid *) Tloc(g, BATcount(g) - 1);
else if (BATtrevordered(g))
maxgrp = * (oid *) Tloc(g, 0);
@@ -814,8 +861,11 @@ BATgroup_internal(BAT **groups, BAT **ex
maxgrps = GROUPBATINCR;
bi = bat_iterator(b);
- if (bi.width <= 2)
+ if (bi.width <= 2) {
maxgrps = (BUN) 1 << (8 * bi.width);
+ if (bi.width == 1 && maxgrp < 256)
+ maxgrps *= maxgrp;
+ }
if (extents) {
en = COLnew(0, TYPE_oid, maxgrps, TRANSIENT);
if (en == NULL)
@@ -860,7 +910,26 @@ BATgroup_internal(BAT **groups, BAT **ex
}
}
- if (subsorted ||
+ if (g == NULL && t == TYPE_bte) {
+ /* byte-sized values, use 256 entry array to keep
+ * track of doled out group ids; note that we can't
+ * possibly have more than 256 groups, so the group id
+ * fits in a uint8_t */
+ GRP_small_values(8, 8, w[p]);
+ } else if (t == TYPE_bte && maxgrp < 256) {
+ /* subgrouping byte-sized values with a limited number
+ * of groups, use 65536 entry array to keep track of
+ * doled out group ids; note that we can't possibly have
+ * more than 65536 goups, so the group id fits in a
+ * uint16_t */
+ GRP_small_values(16, 8, (uint16_t) (w[p] | (grps[p] << 8)));
+ } else if (g == NULL && t == TYPE_sht) {
+ /* short-sized values, use 65536 entry array to keep
+ * track of doled out group ids; note that we can't
+ * possibly have more than 65536 groups, so the group
+ * id fits in a uint16_t */
+ GRP_small_values(16, 16, w[p]);
+ } else if (subsorted ||
((BATordered(b) || BATordered_rev(b)) &&
(g == NULL || BATordered(g) || BATordered_rev(g)))) {
/* we only need to compare each entry with the previous */
@@ -961,73 +1030,6 @@ BATgroup_internal(BAT **groups, BAT **ex
}
GDKfree(pgrp);
- } else if (g == NULL && t == TYPE_bte) {
- /* byte-sized values, use 256 entry array to keep
- * track of doled out group ids; note that we can't
- * possibly have more than 256 groups, so the group id
- * fits in an uint8_t */
- uint8_t bgrps[256];
- const uint8_t *restrict w = (const uint8_t *) bi.base;
- uint8_t v;
-
- algomsg = "byte-sized groups -- ";
- memset(bgrps, 0xFF, sizeof(bgrps));
- if (histo)
- memset(cnts, 0, maxgrps * sizeof(lng));
- ngrp = 0;
- gn->tsorted = true;
- TIMEOUT_LOOP_IDX(r, cnt, timeoffset) {
- oid o = canditer_next(&ci);
- p = o - b->hseqbase;
- if ((v = bgrps[w[p]]) == 0xFF && ngrp < 256) {
- bgrps[w[p]] = v = (uint8_t) ngrp++;
- maxgrppos = r;
- if (extents)
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