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authorUlrich Drepper <drepper@redhat.com>2003-11-18 07:25:02 +0000
committerUlrich Drepper <drepper@redhat.com>2003-11-18 07:25:02 +0000
commit5f93cd52f626b77301c5e1db3d973eefc534323b (patch)
tree8bf877d6a8b552be0cd43b88c7540cdbc63397d6
parent5ddb5bf5fbceb6f44f04f7267eb214eee5fc2f90 (diff)
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Update.
2003-11-17 Jakub Jelinek <jakub@redhat.com> * posix/regcomp.c (optimize_utf8): Optimize multi-byte chars as well. * posix/bug-regex20.c (tests): Add new tests. Multi-byte char followed by dup operator is expected to be optimized. * posix/regexec.c (check_node_accept_bytes): Move nrules and j variables to the block where they are only used, initialize nrules only immediately before using it. 2003-11-15 Andreas Jaeger <aj@suse.de> * sysdeps/x86_64/fpu/s_scalbnl.S: New file. * sysdeps/x86_64/fpu/s_truncl.S: New file. * sysdeps/x86_64/fpu/s_nearbyintl.S: New file. * sysdeps/x86_64/fpu/s_floorl.S: New file. * sysdeps/x86_64/fpu/s_ilogbl.S: New file. * sysdeps/x86_64/fpu/e_remainderl.S: New file. * math/libm-test.inc (floor_test): Test also ±0.25. (ceil_test): Test -0.25.
-rw-r--r--ChangeLog23
-rw-r--r--posix/bug-regex20.c22
-rw-r--r--posix/regcomp.c13
-rw-r--r--posix/regexec.c7
-rw-r--r--sysdeps/x86_64/fpu/e_remainderl.S20
-rw-r--r--sysdeps/x86_64/fpu/s_floorl.S30
-rw-r--r--sysdeps/x86_64/fpu/s_ilogbl.S35
-rw-r--r--sysdeps/x86_64/fpu/s_nearbyintl.S21
-rw-r--r--sysdeps/x86_64/fpu/s_scalbnl.S18
-rw-r--r--sysdeps/x86_64/fpu/s_truncl.S34
10 files changed, 212 insertions, 11 deletions
diff --git a/ChangeLog b/ChangeLog
index b4e1854..e73a05a 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,26 @@
+2003-11-17 Jakub Jelinek <jakub@redhat.com>
+
+ * posix/regcomp.c (optimize_utf8): Optimize multi-byte chars as
+ well.
+ * posix/bug-regex20.c (tests): Add new tests. Multi-byte char
+ followed by dup operator is expected to be optimized.
+
+ * posix/regexec.c (check_node_accept_bytes): Move nrules and j
+ variables to the block where they are only used, initialize
+ nrules only immediately before using it.
+
+2003-11-15 Andreas Jaeger <aj@suse.de>
+
+ * sysdeps/x86_64/fpu/s_scalbnl.S: New file.
+ * sysdeps/x86_64/fpu/s_truncl.S: New file.
+ * sysdeps/x86_64/fpu/s_nearbyintl.S: New file.
+ * sysdeps/x86_64/fpu/s_floorl.S: New file.
+ * sysdeps/x86_64/fpu/s_ilogbl.S: New file.
+ * sysdeps/x86_64/fpu/e_remainderl.S: New file.
+
+ * math/libm-test.inc (floor_test): Test also ±0.25.
+ (ceil_test): Test -0.25.
+
2003-11-17 Ulrich Drepper <drepper@redhat.com>
* sysdeps/posix/getaddrinfo.c: Add support for destination address
diff --git a/posix/bug-regex20.c b/posix/bug-regex20.c
index 11b9484..74662e6 100644
--- a/posix/bug-regex20.c
+++ b/posix/bug-regex20.c
@@ -43,15 +43,35 @@ static struct
\xe2\x80\x94 EM DASH */
/* Should be optimized. */
{RE_SYNTAX_POSIX_BASIC, "foo", "b\xc3\xa4rfoob\xc3\xa4z", 4, 1},
+ {RE_SYNTAX_POSIX_BASIC, "b\xc3\xa4z", "b\xc3\xa4rfoob\xc3\xa4z", 7, 1},
+ {RE_SYNTAX_POSIX_BASIC, "b\xc3\xa4*z", "b\xc3\xa4rfoob\xc3\xa4z", 7, 1},
+ {RE_SYNTAX_POSIX_BASIC, "b\xc3\xa4*z", "b\xc3\xa4rfoobz", 7, 1},
+ {RE_SYNTAX_POSIX_BASIC, "b\xc3\xa4\\+z",
+ "b\xc3\xa4rfoob\xc3\xa4\xc3\xa4z", 7, 1},
+ {RE_SYNTAX_POSIX_BASIC, "b\xc3\xa4\\?z", "b\xc3\xa4rfoob\xc3\xa4z", 7, 1},
+ {RE_SYNTAX_POSIX_BASIC, "b\xc3\xa4\\{1,2\\}z",
+ "b\xc3\xa4rfoob\xc3\xa4z", 7, 1},
{RE_SYNTAX_POSIX_BASIC, "^x\\|xy*z$", "\xc3\xb6xyyz", 2, 1},
{RE_SYNTAX_POSIX_BASIC, "^x\\\\y\\{6\\}z\\+", "x\\yyyyyyzz\xc3\xb6", 0, 1},
{RE_SYNTAX_POSIX_BASIC, "^x\\\\y\\{2,36\\}z\\+", "x\\yzz\xc3\xb6", -1, 1},
{RE_SYNTAX_POSIX_BASIC, "^x\\\\y\\{,3\\}z\\+", "x\\yyyzz\xc3\xb6", 0, 1},
+ {RE_SYNTAX_POSIX_BASIC, "^x\\|x\xc3\xa4*z$",
+ "\xc3\xb6x\xc3\xa4\xc3\xa4z", 2, 1},
+ {RE_SYNTAX_POSIX_BASIC, "^x\\\\\xc3\x84\\{6\\}z\\+",
+ "x\\\xc3\x84\xc3\x84\xc3\x84\xc3\x84\xc3\x84\xc3\x84zz\xc3\xb6", 0, 1},
+ {RE_SYNTAX_POSIX_BASIC, "^x\\\\\xc3\x84\\{2,36\\}z\\+",
+ "x\\\xc3\x84zz\xc3\xb6", -1, 1},
+ {RE_SYNTAX_POSIX_BASIC, "^x\\\\\xc3\x84\\{,3\\}z\\+",
+ "x\\\xc3\x84\xc3\x84\xc3\x84zz\xc3\xb6", 0, 1},
{RE_SYNTAX_POSIX_BASIC, "x[C]y", "axCy", 1, 1},
{RE_SYNTAX_POSIX_BASIC, "x[ABC]y", "axCy", 1, 1},
{RE_SYNTAX_POSIX_BASIC, "\\`x\\|z\\'", "x\xe2\x80\x94", 0, 1},
{RE_SYNTAX_POSIX_BASIC, "\\(xy\\)z\\1a\\1", "\xe2\x80\x94xyzxyaxy\xc3\x84", 3, 1},
{RE_SYNTAX_POSIX_BASIC, "xy\\?z", "\xc3\x84xz\xc3\xb6", 2, 1},
+ {RE_SYNTAX_POSIX_BASIC, "\\`\xc3\x84\\|z\\'", "\xc3\x84\xe2\x80\x94", 0, 1},
+ {RE_SYNTAX_POSIX_BASIC, "\\(x\xc3\x84\\)z\\1\x61\\1",
+ "\xe2\x80\x94x\xc3\x84zx\xc3\x84\x61x\xc3\x84\xc3\x96", 3, 1},
+ {RE_SYNTAX_POSIX_BASIC, "x\xc3\x96\\?z", "\xc3\x84xz\xc3\xb6", 2, 1},
{RE_SYNTAX_POSIX_EXTENDED, "foo", "b\xc3\xa4rfoob\xc3\xa4z", 4, 1},
{RE_SYNTAX_POSIX_EXTENDED, "^x|xy*z$", "\xc3\xb6xyyz", 2, 1},
{RE_SYNTAX_POSIX_EXTENDED, "^x\\\\y{6}z+", "x\\yyyyyyzz\xc3\xb6", 0, 1},
@@ -64,7 +84,6 @@ static struct
{RE_SYNTAX_POSIX_EXTENDED, "xy?z", "\xc3\x84xz\xc3\xb6", 2, 1},
/* Should not be optimized. */
{RE_SYNTAX_POSIX_BASIC, "x.y", "ax\xe2\x80\x94yz", 1, 0},
- {RE_SYNTAX_POSIX_BASIC, "x\xc3\x96*y", "ax\xc3\x96\xc3\x96yz", 1, 0},
{RE_SYNTAX_POSIX_BASIC, "x[\xc3\x84\xc3\xa4]y", "ax\xc3\xa4y", 1, 0},
{RE_SYNTAX_POSIX_BASIC, "x[A-Z,]y", "axCy", 1, 0},
{RE_SYNTAX_POSIX_BASIC, "x[^y]z", "ax\xe2\x80\x94z", 1, 0},
@@ -77,7 +96,6 @@ static struct
{RE_SYNTAX_POSIX_BASIC, "a\\wz", "a\xc3\x84z", 0, 0},
{RE_SYNTAX_POSIX_BASIC, "x\\Wz", "\xc3\x96x\xe2\x80\x94z", 2, 0},
{RE_SYNTAX_POSIX_EXTENDED, "x.y", "ax\xe2\x80\x94yz", 1, 0},
- {RE_SYNTAX_POSIX_EXTENDED, "x\xc3\x96*y", "ax\xc3\x96\xc3\x96yz", 1, 0},
{RE_SYNTAX_POSIX_EXTENDED, "x[\xc3\x84\xc3\xa4]y", "ax\xc3\xa4y", 1, 0},
{RE_SYNTAX_POSIX_EXTENDED, "x[A-Z,]y", "axCy", 1, 0},
{RE_SYNTAX_POSIX_EXTENDED, "x[^y]z", "ax\xe2\x80\x94z", 1, 0},
diff --git a/posix/regcomp.c b/posix/regcomp.c
index 68ce551..b5f0c92 100644
--- a/posix/regcomp.c
+++ b/posix/regcomp.c
@@ -965,17 +965,14 @@ static void
optimize_utf8 (dfa)
re_dfa_t *dfa;
{
- int node, i;
+ int node, i, mb_chars = 0;
for (node = 0; node < dfa->nodes_len; ++node)
switch (dfa->nodes[node].type)
{
case CHARACTER:
- /* Chars >= 0x80 are optimizable in some cases (e.g. when not
- followed by DUP operator, not in bracket etc.).
- For now punt on them all. */
if (dfa->nodes[node].opr.c >= 0x80)
- return;
+ mb_chars = 1;
break;
case ANCHOR:
switch (dfa->nodes[node].opr.idx)
@@ -1010,6 +1007,12 @@ optimize_utf8 (dfa)
return;
}
+ if (mb_chars)
+ for (node = 0; node < dfa->nodes_len; ++node)
+ if (dfa->nodes[node].type == CHARACTER
+ && dfa->nodes[node].opr.c >= 0x80)
+ dfa->nodes[node].mb_partial = 0;
+
/* The search can be in single byte locale. */
dfa->mb_cur_max = 1;
dfa->is_utf8 = 0;
diff --git a/posix/regexec.c b/posix/regexec.c
index 7470197..09756b7 100644
--- a/posix/regexec.c
+++ b/posix/regexec.c
@@ -3483,10 +3483,6 @@ check_node_accept_bytes (preg, node_idx, input, str_idx)
int elem_len = re_string_elem_size_at (input, str_idx);
int char_len = re_string_char_size_at (input, str_idx);
int i;
-# ifdef _LIBC
- int j;
- uint32_t nrules = _NL_CURRENT_WORD (LC_COLLATE, _NL_COLLATE_NRULES);
-# endif /* _LIBC */
if (elem_len <= 1 && char_len <= 1)
return 0;
if (node->type == OP_PERIOD)
@@ -3505,6 +3501,8 @@ check_node_accept_bytes (preg, node_idx, input, str_idx)
# ifdef _LIBC
const unsigned char *pin = ((char *) re_string_get_buffer (input)
+ str_idx);
+ int j;
+ uint32_t nrules;
# endif /* _LIBC */
int match_len = 0;
wchar_t wc = ((cset->nranges || cset->nchar_classes || cset->nmbchars)
@@ -3529,6 +3527,7 @@ check_node_accept_bytes (preg, node_idx, input, str_idx)
}
# ifdef _LIBC
+ nrules = _NL_CURRENT_WORD (LC_COLLATE, _NL_COLLATE_NRULES);
if (nrules != 0)
{
unsigned int in_collseq = 0;
diff --git a/sysdeps/x86_64/fpu/e_remainderl.S b/sysdeps/x86_64/fpu/e_remainderl.S
new file mode 100644
index 0000000..480b1ca
--- /dev/null
+++ b/sysdeps/x86_64/fpu/e_remainderl.S
@@ -0,0 +1,20 @@
+/*
+ * Written by J.T. Conklin <jtc@netbsd.org>.
+ * Public domain.
+ *
+ * Adapted for `long double' by Ulrich Drepper <drepper@cygnus.com>.
+ * Adapted for x86-64 by Andreas Jaeger <aj@suse.de>.
+ */
+
+#include <machine/asm.h>
+
+ENTRY(__ieee754_remainderl)
+ fldt 24(%rsp)
+ fldt 8(%rsp)
+1: fprem1
+ fstsw %ax
+ testl $0x400,%eax
+ jnz 1b
+ fstp %st(1)
+ ret
+END (__ieee754_remainderl)
diff --git a/sysdeps/x86_64/fpu/s_floorl.S b/sysdeps/x86_64/fpu/s_floorl.S
new file mode 100644
index 0000000..f9ecc38
--- /dev/null
+++ b/sysdeps/x86_64/fpu/s_floorl.S
@@ -0,0 +1,30 @@
+/*
+ * Written by J.T. Conklin <jtc@netbsd.org>.
+ * Changes for long double by Ulrich Drepper <drepper@cygnus.com>
+ * Changes for x86-64 by Andreas Jaeger <aj@suse.de>=09
+ * Public domain.
+ */
+
+#include <machine/asm.h>
+
+ENTRY(__floorl)
+ fldt 8(%rsp)
+
+ fstcw -4(%rsp) /* store fpu control word */
+
+ /* We use here %edx although only the low 1 bits are defined.
+ But none of the operations should care and they are faster
+ than the 16 bit operations. */
+ movl $0x400,%edx /* round towards -oo */
+ orl -4(%rsp),%edx
+ andl $0xf7ff,%edx
+ movl %edx,-8(%rsp)
+ fldcw -8(%rsp) /* load modified control word */
+
+ frndint /* round */
+
+ fldcw -4(%rsp) /* restore original control word */
+
+ ret
+END (__floorl)
+weak_alias (__floorl, floorl)
diff --git a/sysdeps/x86_64/fpu/s_ilogbl.S b/sysdeps/x86_64/fpu/s_ilogbl.S
new file mode 100644
index 0000000..f59040c
--- /dev/null
+++ b/sysdeps/x86_64/fpu/s_ilogbl.S
@@ -0,0 +1,35 @@
+/*
+ * Written by J.T. Conklin <jtc@netbsd.org>.
+ * Changes for long double by Ulrich Drepper <drepper@cygnus.com>
+ * Adapted for x86-64 by Andreas Jaeger <aj@suse.de>.
+ * Public domain.
+ */
+
+#include <machine/asm.h>
+
+ENTRY(__ilogbl)
+ fldt 8(%rsp)
+/* I added the following ugly construct because ilogb(+-Inf) is
+ required to return INT_MAX in ISO C99.
+ -- jakub@redhat.com. */
+ fxam /* Is NaN or +-Inf? */
+ fstsw %ax
+ movb $0x45, %dh
+ andb %ah, %dh
+ cmpb $0x05, %dh
+ je 1f /* Is +-Inf, jump. */
+
+ fxtract
+ fstp %st
+
+ fistpl -4(%rsp)
+ fwait
+ movl -4(%rsp),%eax
+
+ ret
+
+1: fstp %st
+ movl $0x7fffffff, %eax
+ ret
+END (__ilogbl)
+weak_alias (__ilogbl, ilogbl)
diff --git a/sysdeps/x86_64/fpu/s_nearbyintl.S b/sysdeps/x86_64/fpu/s_nearbyintl.S
new file mode 100644
index 0000000..dab2750
--- /dev/null
+++ b/sysdeps/x86_64/fpu/s_nearbyintl.S
@@ -0,0 +1,21 @@
+/*
+ * Written by J.T. Conklin <jtc@netbsd.org>.
+ * Public domain.
+ */
+/* Adapted for use as nearbyint by Ulrich Drepper <drepper@cygnus.com>. */
+
+#include <machine/asm.h>
+
+ENTRY(__nearbyintl)
+ fldt 8(%rsp)
+ fnstcw -4(%rsp)
+ movl -4(%rsp), %eax
+ orl $0x20, %eax
+ movl %eax, -8(%rsp)
+ fldcw -8(%rsp)
+ frndint
+ fclex
+ fldcw -4(%rsp)
+ ret
+END (__nearbyintl)
+weak_alias (__nearbyintl, nearbyintl)
diff --git a/sysdeps/x86_64/fpu/s_scalbnl.S b/sysdeps/x86_64/fpu/s_scalbnl.S
new file mode 100644
index 0000000..d0e9301
--- /dev/null
+++ b/sysdeps/x86_64/fpu/s_scalbnl.S
@@ -0,0 +1,18 @@
+/*
+ * Written by J.T. Conklin <jtc@netbsd.org>.
+ * Changes for long double by Ulrich Drepper <drepper@cygnus.com>
+ * Changes for x86-64 by Andreas Jaeger <aj@suse.de>=09
+ * Public domain.
+ */
+
+#include <machine/asm.h>
+
+ENTRY(__scalbnl)
+ movl %edi,-4(%rsp)
+ fildl -4(%rsp)
+ fldt 8(%rsp)
+ fscale
+ fstp %st(1)
+ ret
+END (__scalbnl)
+weak_alias (__scalbnl, scalbnl)
diff --git a/sysdeps/x86_64/fpu/s_truncl.S b/sysdeps/x86_64/fpu/s_truncl.S
new file mode 100644
index 0000000..61acf9a
--- /dev/null
+++ b/sysdeps/x86_64/fpu/s_truncl.S
@@ -0,0 +1,34 @@
+/* Truncate long double value.
+ Copyright (C) 1997, 2003 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include <machine/asm.h>
+
+ENTRY(__truncl)
+ fldt 8(%rsp)
+ fstcw -4(%rsp)
+ movl $0xc00, %edx
+ orl -4(%rsp), %edx
+ movl %edx, -8(%rsp)
+ fldcw -8(%rsp)
+ frndint
+ fldcw -4(%rsp)
+ ret
+END(__truncl)
+weak_alias (__truncl, truncl)