diff options
-rw-r--r-- | client/mysql.cc | 5 | ||||
-rw-r--r-- | mysql-test/r/bigint.result | 9 | ||||
-rw-r--r-- | mysql-test/r/func_str.result | 117 | ||||
-rw-r--r-- | mysql-test/r/grant.result | 3 | ||||
-rw-r--r-- | mysql-test/t/bigint.test | 3 | ||||
-rw-r--r-- | mysql-test/t/func_str.test | 39 | ||||
-rw-r--r-- | mysql-test/t/grant.test | 7 | ||||
-rw-r--r-- | sql/item.cc | 12 | ||||
-rw-r--r-- | sql/item_strfunc.cc | 16 | ||||
-rw-r--r-- | strings/Makefile.am | 4 | ||||
-rw-r--r-- | strings/longlong2str-x86.s | 35 | ||||
-rw-r--r-- | strings/longlong2str_asm.c | 33 | ||||
-rw-r--r-- | strings/my_strtoll10-x86.s | 62 |
13 files changed, 293 insertions, 52 deletions
diff --git a/client/mysql.cc b/client/mysql.cc index 5454c76e720..63173aab20d 100644 --- a/client/mysql.cc +++ b/client/mysql.cc @@ -1563,11 +1563,8 @@ You can turn off this feature to get a quicker startup with -A\n\n"); mysql_free_result(fields); } else - { - tee_fprintf(stdout, - "Didn't find any fields in table '%s'\n",table_row[0]); field_names[i]= 0; - } + i++; } mysql_free_result(tables); diff --git a/mysql-test/r/bigint.result b/mysql-test/r/bigint.result index eb3d0da3f23..e9a457c9dfa 100644 --- a/mysql-test/r/bigint.result +++ b/mysql-test/r/bigint.result @@ -17,6 +17,15 @@ select 9223372036854775808+1; select -(0-3),round(-(0-3)), round(9999999999999999999); -(0-3) round(-(0-3)) round(9999999999999999999) 3 3 10000000000000000000 +select 1,11,101,1001,10001,100001,1000001,10000001,100000001,1000000001,10000000001,100000000001,1000000000001,10000000000001,100000000000001,1000000000000001,10000000000000001,100000000000000001,1000000000000000001,10000000000000000001; +1 11 101 1001 10001 100001 1000001 10000001 100000001 1000000001 10000000001 100000000001 1000000000001 10000000000001 100000000000001 1000000000000001 10000000000000001 100000000000000001 1000000000000000001 10000000000000000001 +1 11 101 1001 10001 100001 1000001 10000001 100000001 1000000001 10000000001 100000000001 1000000000001 10000000000001 100000000000001 1000000000000001 10000000000000001 100000000000000001 1000000000000000001 10000000000000000001 +select -1,-11,-101,-1001,-10001,-100001,-1000001,-10000001,-100000001,-1000000001,-10000000001,-100000000001,-1000000000001,-10000000000001,-100000000000001,-1000000000000001,-10000000000000001,-100000000000000001,-1000000000000000001,-10000000000000000001; +-1 -11 -101 -1001 -10001 -100001 -1000001 -10000001 -100000001 -1000000001 -10000000001 -100000000001 -1000000000001 -10000000000001 -100000000000001 -1000000000000001 -10000000000000001 -100000000000000001 -1000000000000000001 -10000000000000000001 +-1 -11 -101 -1001 -10001 -100001 -1000001 -10000001 -100000001 -1000000001 -10000000001 -100000000001 -1000000000001 -10000000000001 -100000000000001 -1000000000000001 -10000000000000001 -100000000000000001 -1000000000000000001 -10000000000000000000 +select conv(1,10,16),conv((1<<2)-1,10,16),conv((1<<10)-2,10,16),conv((1<<16)-3,10,16),conv((1<<25)-4,10,16),conv((1<<31)-5,10,16),conv((1<<36)-6,10,16),conv((1<<47)-7,10,16),conv((1<<48)-8,10,16),conv((1<<55)-9,10,16),conv((1<<56)-10,10,16),conv((1<<63)-11,10,16); +conv(1,10,16) conv((1<<2)-1,10,16) conv((1<<10)-2,10,16) conv((1<<16)-3,10,16) conv((1<<25)-4,10,16) conv((1<<31)-5,10,16) conv((1<<36)-6,10,16) conv((1<<47)-7,10,16) conv((1<<48)-8,10,16) conv((1<<55)-9,10,16) conv((1<<56)-10,10,16) conv((1<<63)-11,10,16) +1 3 3FE FFFD 1FFFFFC 7FFFFFFB FFFFFFFFA 7FFFFFFFFFF9 FFFFFFFFFFF8 7FFFFFFFFFFFF7 FFFFFFFFFFFFF6 7FFFFFFFFFFFFFF5 create table t1 (a bigint unsigned not null, primary key(a)); insert into t1 values (18446744073709551615), (0xFFFFFFFFFFFFFFFE), (18446744073709551613), (18446744073709551612); select * from t1; diff --git a/mysql-test/r/func_str.result b/mysql-test/r/func_str.result index 4c3a03b8066..ae6578795f6 100644 --- a/mysql-test/r/func_str.result +++ b/mysql-test/r/func_str.result @@ -45,6 +45,123 @@ www. .se select substring_index('.tcx.se','.',-2),substring_index('.tcx.se','.tcx',-1); substring_index('.tcx.se','.',-2) substring_index('.tcx.se','.tcx',-1) tcx.se .se +select substring_index('aaaaaaaaa1','a',1); +substring_index('aaaaaaaaa1','a',1) + +select substring_index('aaaaaaaaa1','aa',1); +substring_index('aaaaaaaaa1','aa',1) + +select substring_index('aaaaaaaaa1','aa',2); +substring_index('aaaaaaaaa1','aa',2) +aa +select substring_index('aaaaaaaaa1','aa',3); +substring_index('aaaaaaaaa1','aa',3) +aaaa +select substring_index('aaaaaaaaa1','aa',4); +substring_index('aaaaaaaaa1','aa',4) +aaaaaa +select substring_index('aaaaaaaaa1','aa',5); +substring_index('aaaaaaaaa1','aa',5) +aaaaaaaaa1 +select substring_index('aaaaaaaaa1','aaa',1); +substring_index('aaaaaaaaa1','aaa',1) + +select substring_index('aaaaaaaaa1','aaa',2); +substring_index('aaaaaaaaa1','aaa',2) +aaa +select substring_index('aaaaaaaaa1','aaa',3); +substring_index('aaaaaaaaa1','aaa',3) +aaaaaa +select substring_index('aaaaaaaaa1','aaa',4); +substring_index('aaaaaaaaa1','aaa',4) +aaaaaaaaa1 +select substring_index('aaaaaaaaa1','aaaa',1); +substring_index('aaaaaaaaa1','aaaa',1) + +select substring_index('aaaaaaaaa1','aaaa',2); +substring_index('aaaaaaaaa1','aaaa',2) +aaaa +select substring_index('aaaaaaaaa1','1',1); +substring_index('aaaaaaaaa1','1',1) +aaaaaaaaa +select substring_index('aaaaaaaaa1','a',-1); +substring_index('aaaaaaaaa1','a',-1) +1 +select substring_index('aaaaaaaaa1','aa',-1); +substring_index('aaaaaaaaa1','aa',-1) +1 +select substring_index('aaaaaaaaa1','aa',-2); +substring_index('aaaaaaaaa1','aa',-2) +aa1 +select substring_index('aaaaaaaaa1','aa',-3); +substring_index('aaaaaaaaa1','aa',-3) +aaaa1 +select substring_index('aaaaaaaaa1','aa',-4); +substring_index('aaaaaaaaa1','aa',-4) +aaaaaa1 +select substring_index('aaaaaaaaa1','aa',-5); +substring_index('aaaaaaaaa1','aa',-5) +aaaaaaaaa1 +select substring_index('aaaaaaaaa1','aaa',-1); +substring_index('aaaaaaaaa1','aaa',-1) +1 +select substring_index('aaaaaaaaa1','aaa',-2); +substring_index('aaaaaaaaa1','aaa',-2) +aaa1 +select substring_index('aaaaaaaaa1','aaa',-3); +substring_index('aaaaaaaaa1','aaa',-3) +aaaaaa1 +select substring_index('aaaaaaaaa1','aaa',-4); +substring_index('aaaaaaaaa1','aaa',-4) + +select substring_index('the king of thethe hill','the',-2); +substring_index('the king of thethe hill','the',-2) +the hill +select substring_index('the king of the the hill','the',-2); +substring_index('the king of the the hill','the',-2) + the hill +select substring_index('the king of the the hill','the',-2); +substring_index('the king of the the hill','the',-2) + the hill +select substring_index('the king of the the hill',' the ',-1); +substring_index('the king of the the hill',' the ',-1) +hill +select substring_index('the king of the the hill',' the ',-2); +substring_index('the king of the the hill',' the ',-2) + the hill +select substring_index('the king of the the hill',' ',-1); +substring_index('the king of the the hill',' ',-1) +hill +select substring_index('the king of the the hill',' ',-2); +substring_index('the king of the the hill',' ',-2) +the hill +select substring_index('the king of the the hill',' ',-3); +substring_index('the king of the the hill',' ',-3) + the hill +select substring_index('the king of the the hill',' ',-4); +substring_index('the king of the the hill',' ',-4) +the the hill +select substring_index('the king of the the hill',' ',-5); +substring_index('the king of the the hill',' ',-5) +of the the hill +select substring_index('the king of the.the hill','the',-2); +substring_index('the king of the.the hill','the',-2) +.the hill +select substring_index('the king of thethethe.the hill','the',-3); +substring_index('the king of thethethe.the hill','the',-3) +the.the hill +select substring_index('the king of thethethe.the hill','the',-1); +substring_index('the king of thethethe.the hill','the',-1) + hill +select substring_index('the king of the the hill','the',1); +substring_index('the king of the the hill','the',1) + +select substring_index('the king of the the hill','the',2); +substring_index('the king of the the hill','the',2) +the king of +select substring_index('the king of the the hill','the',3); +substring_index('the king of the the hill','the',3) +the king of the select concat(':',ltrim(' left '),':',rtrim(' right '),':'); concat(':',ltrim(' left '),':',rtrim(' right '),':') :left : right: diff --git a/mysql-test/r/grant.result b/mysql-test/r/grant.result index e9e1d4cd620..a50293752ec 100644 --- a/mysql-test/r/grant.result +++ b/mysql-test/r/grant.result @@ -440,3 +440,6 @@ insert into tables_priv values ('','test_db','mysqltest_1','test_table','test_gr flush privileges; delete from tables_priv where host = '' and user = 'mysqltest_1'; flush privileges; +set @user123="non-existent"; +select * from mysql.db where user=@user123; +Host Db User Select_priv Insert_priv Update_priv Delete_priv Create_priv Drop_priv Grant_priv References_priv Index_priv Alter_priv Create_tmp_table_priv Lock_tables_priv diff --git a/mysql-test/t/bigint.test b/mysql-test/t/bigint.test index 741c7ec360b..8a238d33e08 100644 --- a/mysql-test/t/bigint.test +++ b/mysql-test/t/bigint.test @@ -14,6 +14,9 @@ select +9999999999999999999,-9999999999999999999; select cast(9223372036854775808 as unsigned)+1; select 9223372036854775808+1; select -(0-3),round(-(0-3)), round(9999999999999999999); +select 1,11,101,1001,10001,100001,1000001,10000001,100000001,1000000001,10000000001,100000000001,1000000000001,10000000000001,100000000000001,1000000000000001,10000000000000001,100000000000000001,1000000000000000001,10000000000000000001; +select -1,-11,-101,-1001,-10001,-100001,-1000001,-10000001,-100000001,-1000000001,-10000000001,-100000000001,-1000000000001,-10000000000001,-100000000000001,-1000000000000001,-10000000000000001,-100000000000000001,-1000000000000000001,-10000000000000000001; +select conv(1,10,16),conv((1<<2)-1,10,16),conv((1<<10)-2,10,16),conv((1<<16)-3,10,16),conv((1<<25)-4,10,16),conv((1<<31)-5,10,16),conv((1<<36)-6,10,16),conv((1<<47)-7,10,16),conv((1<<48)-8,10,16),conv((1<<55)-9,10,16),conv((1<<56)-10,10,16),conv((1<<63)-11,10,16); # # In 3.23 we have to disable the test of column to bigint as diff --git a/mysql-test/t/func_str.test b/mysql-test/t/func_str.test index ddfc83e620a..8afbe673ce3 100644 --- a/mysql-test/t/func_str.test +++ b/mysql-test/t/func_str.test @@ -23,6 +23,45 @@ select concat('',left(right(concat('what ',concat('is ','happening')),9),4),'',s select substring_index('www.tcx.se','.',-2),substring_index('www.tcx.se','.',1); select substring_index('www.tcx.se','tcx',1),substring_index('www.tcx.se','tcx',-1); select substring_index('.tcx.se','.',-2),substring_index('.tcx.se','.tcx',-1); +select substring_index('aaaaaaaaa1','a',1); +select substring_index('aaaaaaaaa1','aa',1); +select substring_index('aaaaaaaaa1','aa',2); +select substring_index('aaaaaaaaa1','aa',3); +select substring_index('aaaaaaaaa1','aa',4); +select substring_index('aaaaaaaaa1','aa',5); +select substring_index('aaaaaaaaa1','aaa',1); +select substring_index('aaaaaaaaa1','aaa',2); +select substring_index('aaaaaaaaa1','aaa',3); +select substring_index('aaaaaaaaa1','aaa',4); +select substring_index('aaaaaaaaa1','aaaa',1); +select substring_index('aaaaaaaaa1','aaaa',2); +select substring_index('aaaaaaaaa1','1',1); +select substring_index('aaaaaaaaa1','a',-1); +select substring_index('aaaaaaaaa1','aa',-1); +select substring_index('aaaaaaaaa1','aa',-2); +select substring_index('aaaaaaaaa1','aa',-3); +select substring_index('aaaaaaaaa1','aa',-4); +select substring_index('aaaaaaaaa1','aa',-5); +select substring_index('aaaaaaaaa1','aaa',-1); +select substring_index('aaaaaaaaa1','aaa',-2); +select substring_index('aaaaaaaaa1','aaa',-3); +select substring_index('aaaaaaaaa1','aaa',-4); +select substring_index('the king of thethe hill','the',-2); +select substring_index('the king of the the hill','the',-2); +select substring_index('the king of the the hill','the',-2); +select substring_index('the king of the the hill',' the ',-1); +select substring_index('the king of the the hill',' the ',-2); +select substring_index('the king of the the hill',' ',-1); +select substring_index('the king of the the hill',' ',-2); +select substring_index('the king of the the hill',' ',-3); +select substring_index('the king of the the hill',' ',-4); +select substring_index('the king of the the hill',' ',-5); +select substring_index('the king of the.the hill','the',-2); +select substring_index('the king of thethethe.the hill','the',-3); +select substring_index('the king of thethethe.the hill','the',-1); +select substring_index('the king of the the hill','the',1); +select substring_index('the king of the the hill','the',2); +select substring_index('the king of the the hill','the',3); select concat(':',ltrim(' left '),':',rtrim(' right '),':'); select concat(':',trim(LEADING FROM ' left'),':',trim(TRAILING FROM ' right '),':'); diff --git a/mysql-test/t/grant.test b/mysql-test/t/grant.test index 50255d515e0..b0de62e679c 100644 --- a/mysql-test/t/grant.test +++ b/mysql-test/t/grant.test @@ -402,4 +402,11 @@ flush privileges; delete from tables_priv where host = '' and user = 'mysqltest_1'; flush privileges; +# +# Bug #10892 user variables not auto cast for comparisons +# Check that we don't get illegal mix of collations +# +set @user123="non-existent"; +select * from mysql.db where user=@user123; + # End of 4.1 tests diff --git a/sql/item.cc b/sql/item.cc index 84dbc382a52..b3d2932acf6 100644 --- a/sql/item.cc +++ b/sql/item.cc @@ -455,14 +455,18 @@ bool DTCollation::aggregate(DTCollation &dt, uint flags) ; // Do nothing } else if ((flags & MY_COLL_ALLOW_SUPERSET_CONV) && - derivation < dt.derivation && - collation->state & MY_CS_UNICODE) + collation->state & MY_CS_UNICODE && + (derivation < dt.derivation || + (derivation == dt.derivation && + !(dt.collation->state & MY_CS_UNICODE)))) { // Do nothing } else if ((flags & MY_COLL_ALLOW_SUPERSET_CONV) && - dt.derivation < derivation && - dt.collation->state & MY_CS_UNICODE) + dt.collation->state & MY_CS_UNICODE && + (dt.derivation < derivation || + (dt.derivation == derivation && + !(collation->state & MY_CS_UNICODE)))) { set(dt); } diff --git a/sql/item_strfunc.cc b/sql/item_strfunc.cc index d316c7eaf72..52a2dedb67c 100644 --- a/sql/item_strfunc.cc +++ b/sql/item_strfunc.cc @@ -42,7 +42,7 @@ static void my_coll_agg_error(DTCollation &c1, DTCollation &c2, const char *fname) { my_error(ER_CANT_AGGREGATE_2COLLATIONS,MYF(0), - c1.collation->name,c1.derivation_name(), + c1.collation->name,c1.derivation_name(), c2.collation->name,c2.derivation_name(), fname); } @@ -1188,10 +1188,22 @@ String *Item_func_substr_index::val_str(String *str) } else { // Start counting at end - for (offset=res->length() ; ; offset-=delimeter_length-1) + /* + Negative index, start counting at the end + */ + for (offset=res->length(); offset ;) { + /* + this call will result in finding the position pointing to one + address space less than where the found substring is located + in res + */ if ((int) (offset=res->strrstr(*delimeter,offset)) < 0) return res; // Didn't find, return org string + /* + At this point, we've searched for the substring + the number of times as supplied by the index value + */ if (!++count) { offset+=delimeter_length; diff --git a/strings/Makefile.am b/strings/Makefile.am index 3f954f3c6a0..97b35075277 100644 --- a/strings/Makefile.am +++ b/strings/Makefile.am @@ -23,7 +23,7 @@ pkglib_LIBRARIES = libmystrings.a # Exact one of ASSEMBLER_X if ASSEMBLER_x86 ASRCS = strings-x86.s longlong2str-x86.s my_strtoll10-x86.s -CSRCS = bfill.c bmove.c bmove512.c bchange.c strxnmov.c int2str.c str2int.c r_strinstr.c strtod.c bcmp.c strtol.c strtoul.c strtoll.c strtoull.c llstr.c strnlen.c ctype.c ctype-simple.c ctype-mb.c ctype-big5.c ctype-cp932.c ctype-czech.c ctype-euc_kr.c ctype-gb2312.c ctype-gbk.c ctype-sjis.c ctype-tis620.c ctype-ujis.c ctype-utf8.c ctype-ucs2.c ctype-uca.c ctype-win1250ch.c ctype-bin.c ctype-latin1.c my_vsnprintf.c xml.c ctype-extra.c +CSRCS = bfill.c bmove.c bmove512.c bchange.c strxnmov.c int2str.c str2int.c r_strinstr.c strtod.c bcmp.c strtol.c strtoul.c strtoll.c strtoull.c llstr.c strnlen.c ctype.c ctype-simple.c ctype-mb.c ctype-big5.c ctype-cp932.c ctype-czech.c ctype-euc_kr.c ctype-gb2312.c ctype-gbk.c ctype-sjis.c ctype-tis620.c ctype-ujis.c ctype-utf8.c ctype-ucs2.c ctype-uca.c ctype-win1250ch.c ctype-bin.c ctype-latin1.c my_vsnprintf.c xml.c ctype-extra.c longlong2str_asm.c else if ASSEMBLER_sparc32 # These file MUST all be on the same line!! Otherwise automake @@ -46,7 +46,7 @@ EXTRA_DIST = ctype-big5.c ctype-cp932.c ctype-czech.c ctype-euc_kr.c ctype-win1 ctype-gb2312.c ctype-gbk.c ctype-sjis.c ctype-utf8.c \ ctype-ucs2.c ctype-uca.c ctype-tis620.c ctype-ujis.c \ xml.c strto.c strings-x86.s \ - longlong2str.c longlong2str-x86.s \ + longlong2str.c longlong2str-x86.s longlong2str_asm.c \ my_strtoll10.c my_strtoll10-x86.s \ strxmov.c bmove_upp.c strappend.c strcont.c strend.c \ strfill.c strcend.c is_prefix.c strstr.c strinstr.c \ diff --git a/strings/longlong2str-x86.s b/strings/longlong2str-x86.s index fcc57810224..1840bab3f47 100644 --- a/strings/longlong2str-x86.s +++ b/strings/longlong2str-x86.s @@ -16,26 +16,26 @@ # Optimized longlong2str function for Intel 80x86 (gcc/gas syntax) # Some set sequences are optimized for pentuimpro II - .file "longlong2str.s" - .version "1.01" + .file "longlong2str-x86.s" + .version "1.02" .text .align 4 -.globl longlong2str - .type longlong2str,@function +.globl longlong2str_with_dig_vector + .type longlong2str_with_dig_vector,@function -longlong2str: +longlong2str_with_dig_vector: subl $80,%esp pushl %ebp pushl %esi pushl %edi pushl %ebx movl 100(%esp),%esi # Lower part of val - movl 104(%esp),%ebp # Higher part of val - movl 108(%esp),%edi # get dst movl 112(%esp),%ebx # Radix + movl 104(%esp),%ebp # Higher part of val movl %ebx,%eax + movl 108(%esp),%edi # get dst testl %eax,%eax jge .L144 @@ -69,6 +69,8 @@ longlong2str: .L150: leal 92(%esp),%ecx # End of buffer + movl %edi, 108(%esp) # Store possible modified dest + movl 116(%esp), %edi # dig_vec_upper jmp .L155 .align 4 @@ -83,7 +85,7 @@ longlong2str: divl %ebx decl %ecx movl %eax,%esi # quotent in ebp:esi - movb _dig_vec_upper(%edx),%al # al is faster than dl + movb (%edx,%edi),%al # al is faster than dl movb %al,(%ecx) # store value in buff .align 4 .L155: @@ -91,20 +93,22 @@ longlong2str: ja .L153 testl %esi,%esi # rest value jl .L153 - je .L10_mov # Ready + je .L160 # Ready movl %esi,%eax - movl $_dig_vec_upper,%ebp .align 4 .L154: # Do rest with integer precision cltd divl %ebx decl %ecx - movb (%edx,%ebp),%dl # bh is always zero as ebx=radix < 36 + movb (%edx,%edi),%dl # bh is always zero as ebx=radix < 36 testl %eax,%eax movb %dl,(%ecx) jne .L154 +.L160: + movl 108(%esp),%edi # get dst + .L10_mov: movl %ecx,%esi leal 92(%esp),%ecx # End of buffer @@ -129,7 +133,7 @@ longlong2str: jmp .L165 .Lfe3: - .size longlong2str,.Lfe3-longlong2str + .size longlong2str_with_dig_vector,.Lfe3-longlong2str_with_dig_vector # # This is almost equal to the above, except that we can do the final @@ -137,9 +141,6 @@ longlong2str: # .align 4 -.Ltmp: - .long 0xcccccccd - .align 4 .globl longlong10_to_str .type longlong10_to_str,@function @@ -202,8 +203,8 @@ longlong10_to_str: # The following code uses some tricks to change division by 10 to # multiplication and shifts - movl .Ltmp,%esi # set %esi to 0xcccccccd - + movl $0xcccccccd,%esi + .L10_40: movl %ebx,%eax mull %esi diff --git a/strings/longlong2str_asm.c b/strings/longlong2str_asm.c new file mode 100644 index 00000000000..e38a8328b91 --- /dev/null +++ b/strings/longlong2str_asm.c @@ -0,0 +1,33 @@ +/* Copyright (C) 2000 MySQL AB + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program 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 General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ + +/* + Wrapper for longlong2str.s + + We need this because the assembler code can't access the local variable + _dig_vector in a portable manner. +*/ + +#include <my_global.h> +#include "m_string.h" + +extern char *longlong2str_with_dig_vector(longlong val,char *dst,int radix, + const char *dig_vector); + +char *longlong2str(longlong val,char *dst,int radix) +{ + return longlong2str_with_dig_vector(val, dst, radix, _dig_vec_upper); +} diff --git a/strings/my_strtoll10-x86.s b/strings/my_strtoll10-x86.s index c04384667a7..1d8b8f2bbce 100644 --- a/strings/my_strtoll10-x86.s +++ b/strings/my_strtoll10-x86.s @@ -17,21 +17,8 @@ # For documentation, check my_strtoll.c .file "my_strtoll10-x86.s" - .version "01.01" -.data - .align 32 - .type lfactor,@object - .size lfactor,36 -lfactor: - .long 1 - .long 10 - .long 100 - .long 1000 - .long 10000 - .long 100000 - .long 1000000 - .long 10000000 - .long 100000000 + .version "01.02" + .text .align 4 @@ -209,14 +196,16 @@ my_strtoll10: jne .L500 cmpl -36(%ebp),%esi # Test if string is less than 18 digits jne .Lend_i_and_j - jmp .Lend3 # 18 digit string +.L499: + movl $1000000000,%eax + jmp .Lgot_factor # 18 digit string # Handle the possible next to last digit and store in ecx .L500: movb (%esi),%al addb $-48,%al cmpb $9,%al - ja .Lend3 + ja .L499 # 18 digit string incl %esi movzbl %al,%ecx @@ -315,14 +304,41 @@ my_strtoll10: .Lend_i_and_j: movl %esi,%ecx subl -12(%ebp),%ecx # ecx= number of digits in second part - movl lfactor(,%ecx,4),%eax - jmp .L523 - # Return -8(%ebp) * $1000000000 + edi + # Calculate %eax= 10 ** %cl, where %cl <= 8 + # With an array one could do this with: + # movl 10_factor_table(,%ecx,4),%eax + # We calculate the table here to avoid problems in + # position independent code (gcc -pic) + + cmpb $3,%cl + ja .L4_to_8 + movl $1000, %eax + je .Lgot_factor # %cl=3, eax= 1000 + movl $10, %eax + cmpb $1,%cl # %cl is here 0 - 2 + je .Lgot_factor # %cl=1, eax= 10 + movl $100, %eax + ja .Lgot_factor # %cl=2, eax=100 + movl $1, %eax + jmp .Lgot_factor # %cl=0, eax=1 + +.L4_to_8: # %cl is here 4-8 + cmpb $5,%cl + movl $100000, %eax + je .Lgot_factor # %cl=5, eax=100000 + movl $10000, %eax + jbe .Lgot_factor # %cl=4, eax=10000 + movl $10000000, %eax + cmpb $7,%cl + je .Lgot_factor # %cl=7, eax=10000000 + movl $100000000, %eax + ja .Lgot_factor # %cl=8, eax=100000000 + movl $1000000, %eax # %cl=6, eax=1000000 + + # Return -8(%ebp) * %eax + edi .p2align 4,,7 -.Lend3: - movl $1000000000,%eax -.L523: +.Lgot_factor: mull -8(%ebp) addl %edi,%eax adcl $0,%edx |