Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

opbasic/arith.t test fails "2.2250738585072014e-308" is 0.0 on Intel C but not Visual C #14309

Open
p5pRT opened this issue Dec 6, 2014 · 5 comments

Comments

@p5pRT
Copy link

p5pRT commented Dec 6, 2014

Migrated from rt.perl.org#123375 (status was 'open')

Searchable as RT123375$

@p5pRT
Copy link
Author

p5pRT commented Dec 6, 2014

From @bulk88

Created by @bulk88

Intel C is failing a test in opbasic/arith.t. Specifically perl -e" my
$num = 2.2250738585072014e-308; print $num" is different on Intel C vs
Visual C 2008. Same git commit level for both. I stepped do_ncmp
-------------------------------
my $num = 2.2250738585072014e-308;
try $T++, ((study $num),($num != 0.0)), 'min double';
--------------------------------

and found "2.2250738585072014e-308" is NV 0.0 in $num. Not sure what to
debug next or where perl converts Perl source code FPs constants to
machine NVs. This is the only math related test that fails on my Intel C
build and the only one that fails on Intel C and not an identical VC
2008 build.

Console dumps below.

C​:\p521\srcnew\t>perl -I..\lib opbasic/arith.t
1..181
ok 1 - modulo​: positive positive
ok 2 - modulo​: negative positive
ok 3 - modulo​: positive negative
ok 4 - modulo​: negative negative
ok 5 - abs()​: 0 0
ok 6 - abs()​: 1 1
ok 7 - abs()​: -1 1
ok 8 - abs()​: 2**31-1​: pos pos
ok 9 - abs()​: 2**31-1​: neg pos
ok 10 - abs()​: 2**32-1​: pos pos
ok 11 - abs()​: 2**32-1​: neg pos
ok 12 - abs()​: 2**63-1​: pos pos
ok 13 - abs()​: 2**63-1​: neg pos
ok 14 - abs()​: 1e50​: pos pos
ok 15 - abs()​: 1e50​: neg pos
ok 16 - abs() for floating point
ok 17 - abs() for floating point
ok 18 - abs() for floating point
ok 19 - abs() for floating point
ok 20 - UV behaves properly​: modulo
ok 21 - UV behaves properly​: modulo
ok 22 - UV behaves properly​: modulo
ok 23 - UV behaves properly​: modulo
ok 24 - trigger wrapping on 32 bit IVs and UVs
ok 25 - IV + IV promotes to UV
ok 26 - IV + IV promotes to UV
ok 27 - IV + IV promotes to UV
ok 28 - IV + UV promotes to NV
ok 29 - UV + IV promotes to NV
ok 30 - UV + UV promotes to NV
ok 31 - UV + IV promotes to IV
ok 32 - UV + IV promotes to IV
ok 33 - IV + UV promotes to IV
ok 34 - IV + UV promotes to IV
ok 35 - IV + IV promotes to NV
ok 36 - IV + IV promotes to NV
ok 37 - addition of 2 positive integers
ok 38 - addition of positive and negative integer
ok 39 - addition of negative and positive integer
ok 40 - addition of 2 negative integers
ok 41 - addition of signed negative and positive integers
ok 42 - addition of positive and negative integer
ok 43 - addition which sums to 0
ok 44 - addition which sums to 0
ok 45 - addition of signed negative and positive integers
ok 46 - addition of signed positive and negative integers
ok 47 - subtraction of two positive integers
ok 48 - subtraction of two positive integers​: minuend smaller
ok 49 - subtraction of positive and negative integer
ok 50 - subtraction of negative and positive integer
ok 51 - subtraction of two negative integers
ok 52 - subtraction of two negative integers​: minuend smaller
ok 53 - subtraction of two negative integers with result of 0
ok 54 - subtraction of two positive integers with result of 0
ok 55 - subtraction from large integer
ok 56 - subtraction from large integer
ok 57 - subtraction from large negative integer
ok 58 - subtraction of large negative integer from 0
ok 59 - subtraction of large negative integer from negative integer
ok 60 - subtraction of large negative integer from positive integer
ok 61 - subtraction from large integer
ok 62 - subtraction from large negative integer
ok 63 - IV - IV promote to UV
ok 64 - IV - IV promote to UV
ok 65 - UV - IV promote to NV
ok 66 - IV - IV promote to NV
ok 67 - UV - UV promote to IV
ok 68 - IV - UV promote to IV
ok 69 - += with positive
ok 70 - += with negative
ok 71 - += with positive
ok 72 - += with negative
ok 73 - += with positive
ok 74 - += with negative
ok 75 - -= with positive
ok 76 - -= with negative
ok 77 - -= with negative
ok 78 - -= with negative
ok 79 - -= with positive
ok 80 - -= with positive
ok 81 - multiplication of two positive integers
ok 82 - multiplication of negative and positive integer
ok 83 - multiplication of positive and negative integer
ok 84 - multiplication of two negative integers
ok 85 - multiplication​: 0xFFFF and 0xFFFF​: pos pos
ok 86 - multiplication​: 0xFFFF and 0xFFFF​: pos neg
ok 87 - multiplication​: 0xFFFF and 0xFFFF​: pos neg
ok 88 - multiplication​: 0xFFFF and 0xFFFF​: neg neg
ok 89 - multiplication​: 0xFFFF and 0x10001​: pos pos
ok 90 - multiplication​: 0xFFFF and 0x10001​: pos neg
ok 91 - multiplication​: 0xFFFF and 0x10001​: neg pos
ok 92 - multiplication​: 0xFFFF and 0x10001​: neg neg
ok 93 - multiplication​: 0x10001 and 0xFFFF​: pos pos
ok 94 - multiplication​: 0x10001 and 0xFFFF​: pos neg
ok 95 - multiplication​: 0x10001 and 0xFFFF​: neg pos
ok 96 - multiplication​: 0x10001 and 0xFFFF​: neg neg
ok 97 - multiplication​: NV​: pos pos
ok 98 - multiplication​: NV​: pos neg
ok 99 - multiplication​: NV​: neg pos
ok 100 - multiplication​: NV​: neg neg
ok 101 - multiplication​: overflow an IV in 32-bit​: pos pos
ok 102 - multiplication​: overflow an IV in 32-bit​: pos neg
ok 103 - multiplication​: overflow an IV in 32-bit​: neg pos
ok 104 - multiplication​: overflow an IV in 32-bit​: neg neg
ok 105 - multiplication​: overflow an IV in 32-bit​: pos pos
ok 106 - multiplication​: overflow an IV in 32-bit​: pos neg
ok 107 - multiplication​: overflow an IV in 32-bit​: neg pos
ok 108 - multiplication​: overflow an IV in 32-bit​: neg neg
ok 109 - multiplication​: overflow a positive IV in 32-bit​: pos pos
ok 110 - multiplication​: overflow a positive IV in 32-bit​: pos neg
ok 111 - multiplication​: overflow a positive IV in 32-bit​: neg pos
ok 112 - multiplication​: overflow a positive IV in 32-bit​: neg neg
ok 113 - multiplication​: overflow a positive IV in 32-bit​: pos pos
ok 114 - multiplication​: overflow a positive IV in 32-bit​: pos neg
ok 115 - multiplication​: overflow a positive IV in 32-bit​: neg pos
ok 116 - multiplication​: overflow a positive IV in 32-bit​: neg neg
ok 117 - multiplication​: hex product​: pos pos
ok 118 - multiplication​: hex product​: pos neg
ok 119 - multiplication​: hex product​: neg pos
ok 120 - multiplication​: hex product​: neg neg
ok 121 - ignore leading space​: addition
ok 122 - ignore leading space​: subtraction
ok 123 - floating point and string equivalent​: positive
ok 124 - floating point and string equivalent​: negative
ok 125 - division of two positive integers
ok 126 - division of positive integer by negative
ok 127 - division of negative integer by positive
ok 128 - division of negative integer by negative
ok 129 - division of positive hex by positive integer
ok 130 - division of positive hex by negative integer
ok 131 - division of negative hex by negative integer
ok 132 - division of negative hex by positive integer
ok 133 - division of floating point without fractional part
ok 134 - division of positive floating point by positive integer
ok 135 - division of positive floating point by negative integer
ok 136 - division of negative floating point by positive integer
ok 137 - division of negative floating point by negative integer
ok 138 - division of very large number by 1
ok 139 - division of very large number by 2
ok 140 - division of two very large numbers
ok 141 - division of two very large numbers
ok 142 - integer times floating point
ok 143 - integer times integer
ok 144 - floating point times integer
ok 145 - integer plus zero times integer
ok 146 - defeat any future optimizer
ok 147 - absolute value
ok 148 # 9.15131444281685e+019 is close to 9.15131444281685e+019, $^O eq
MSWin32
- 64 bit​: integer times floating point
ok 149 # 9.15131444281685e+019 is close to 9.15131444281685e+019, $^O eq
MSWin32
- 64 bit​: integer times integer
ok 150 # 9.15131444281685e+019 is close to 9.15131444281685e+019, $^O eq
MSWin32
- 64 bit​: floating point times integer
ok 151 # 9.15131444281685e+019 is close to 9.15131444281685e+019, $^O eq
MSWin32
- 64 bit​: integer plus zero times integer
ok 152 # 9.15131444281685e+019 is close to 9.15131444281685e+019, $^O eq
MSWin32
- 64 bit​: defeat any future optimizer
ok 153 - $1 vs "$1" * something
ok 154 - something * $1 vs "$1"
ok 155 - $1 vs "$1" + something
ok 156 - something + $1 vs "$1"
ok 157 - $1 vs "$1" - something
ok 158 - something - $1 vs "$1"
ok 159 - $1 vs "$1" ** something
ok 160 - something ** $1 vs "$1"
ok 161 - $1 vs "$1" / something
ok 162 - something / $1 vs "$1"
ok 163 - $1 vs "$1" <=> something
ok 164 - something <=> $1 vs "$1"
ok 165 - $1 vs "$1" % something
ok 166 - something % $1 vs "$1"
ok 167 - infinity
ok 168 - 0.153e-305
ok 169 - 0.1530e-305
ok 170 - 0.15300e-305
ok 171 - 0.153000e-305
ok 172 - 0.1530000e-305
ok 173 - 0.1530001e-305
ok 174 - min single
not ok 175 - min double
ok 176 - 1.23
ok 177 - 1.23 with leading space
ok 178 - 1.23 with trailing space
ok 179 - 1.23 with unary plus
ok 180 - 1.23 with unary minus
ok 181 - 1.23e4

C​:\p521\srcnew\t>

C​:\>perl -V
Summary of my perl5 (revision 5 version 21 subversion 6) configuration​:
  Derived from​:
  Platform​:
  osname=MSWin32, osvers=5.2, archname=MSWin32-x86-multi-thread
  uname=''
  config_args='undef'
  hint=recommended, useposix=true, d_sigaction=undef
  useithreads=define, usemultiplicity=define
  use64bitint=undef, use64bitall=undef, uselongdouble=undef
  usemymalloc=n, bincompat5005=undef
  Compiler​:
  cc='cl', ccflags ='-nologo -GF -W3 -O1 -MD -Zi -DNDEBUG -GS- -GL
-DWIN32 -D_
CONSOLE -DNO_STRICT -D_CRT_SECURE_NO_DEPRECATE
-D_CRT_NONSTDC_NO_DEPRECATE -DPE
RL_TEXTMODE_SCRIPTS -DPERL_HASH_FUNC_ONE_AT_A_TIME -DNO_MATHOMS
-DPERL_IMPLICIT_
CONTEXT -DPERL_IMPLICIT_SYS -DUSE_PERLIO',
  optimize='-O1 -MD -Zi -DNDEBUG -GS- -GL',
  cppflags='-DWIN32'
  ccversion='15.00.30729.01', gccversion='', gccosandvers=''
  intsize=4, longsize=4, ptrsize=4, doublesize=8, byteorder=1234
  d_longlong=undef, longlongsize=8, d_longdbl=define, longdblsize=8,
longdblki
nd=0
  ivtype='long', ivsize=4, nvtype='double', nvsize=8, Off_t='__int64',
lseeksi
ze=8
  alignbytes=8, prototype=define
  Linker and Libraries​:
  ld='link', ldflags ='-nologo -nodefaultlib -debug -opt​:ref,icf
-ltcg -libpa
th​:"c​:\p521\lib\CORE" -machine​:x86 "/manifestdependency​:type='Win32'
name='Micr
osoft.Windows.Common-Controls' version='6.0.0.0'
processorArchitecture='*' publi
cKeyToken='6595b64144ccf1df' language='*'"'
  libpth=\lib
  libs=oldnames.lib kernel32.lib user32.lib gdi32.lib winspool.lib
comdlg32.l
ib advapi32.lib shell32.lib ole32.lib oleaut32.lib netapi32.lib
uuid.lib ws2_32
.lib mpr.lib winmm.lib version.lib odbc32.lib odbccp32.lib comctl32.lib
msvcrt.
lib
  perllibs=oldnames.lib kernel32.lib user32.lib gdi32.lib
winspool.lib comdlg
32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib netapi32.lib
uuid.lib ws
2_32.lib mpr.lib winmm.lib version.lib odbc32.lib odbccp32.lib
comctl32.lib msv
crt.lib
  libc=msvcrt.lib, so=dll, useshrplib=true, libperl=perl521.lib
  gnulibc_version=''
  Dynamic Linking​:
  dlsrc=dl_win32.xs, dlext=dll, d_dlsymun=undef, ccdlflags=' '
  cccdlflags=' ', lddlflags='-dll -nologo -nodefaultlib -debug
-opt​:ref,icf -l
tcg -libpath​:"c​:\p521\lib\CORE" -machine​:x86
"/manifestdependency​:type='Win32'
name='Microsoft.Windows.Common-Controls' version='6.0.0.0'
processorArchitectur
e='*' publicKeyToken='6595b64144ccf1df' language='*'"'

Characteristics of this binary (from libperl)​:
  Compile-time options​: HAS_TIMES HAVE_INTERP_INTERN MULTIPLICITY NO_MATHOMS
  PERLIO_LAYERS PERL_DISABLE_PMC PERL_DONT_CREATE_GVSV
  PERL_HASH_FUNC_ONE_AT_A_TIME PERL_IMPLICIT_CONTEXT
  PERL_IMPLICIT_SYS PERL_NEW_COPY_ON_WRITE
  PERL_PRESERVE_IVUV USE_ITHREADS USE_LARGE_FILES
  USE_LOCALE USE_LOCALE_COLLATE USE_LOCALE_CTYPE
  USE_LOCALE_NUMERIC USE_LOCALE_TIME USE_PERLIO
  USE_PERL_ATOF
  Locally applied patches​:
  uncommitted-changes
  Built under MSWin32
  Compiled at Oct 25 2014 06​:14​:49
  @​INC​:
  C​:/p521/site/lib
  C​:/p521/lib
  .

C​:\>perl -e" my $num = 2.2250738585072014e-308; print $num"
2.2250738585072e-308
C​:\>

C​:\p521\srcnew\t>perl -I..\lib -V
Summary of my perl5 (revision 5 version 21 subversion 7) configuration​:
  Derived from​: 3a28716c57e8b57c831160a0ec151b83d7edaa7f
  Ancestor​: b68eab2
  Platform​:
  osname=MSWin32, osvers=5.2, archname=MSWin32-x86-multi-thread
  uname=''
  config_args='undef'
  hint=recommended, useposix=true, d_sigaction=undef
  useithreads=define, usemultiplicity=define
  use64bitint=undef, use64bitall=undef, uselongdouble=undef
  usemymalloc=n, bincompat5005=undef
  Compiler​:
  cc='icl', ccflags ='-nologo -GF -W3 -O1 -MD -Zi -DNDEBUG -GS- -GL
-DWIN32 -D
_CONSOLE -DNO_STRICT -D_CRT_SECURE_NO_DEPRECATE
-D_CRT_NONSTDC_NO_DEPRECATE -DP
ERL_TEXTMODE_SCRIPTS -DPERL_HASH_FUNC_ONE_AT_A_TIME -DNO_MATHOMS
-DPERL_IMPLICIT
_CONTEXT -DPERL_IMPLICIT_SYS -DUSE_PERLIO',
  optimize='-O1 -MD -Zi -DNDEBUG -GS- -GL',
  cppflags='-DWIN32'
  ccversion='12.1.5.344', gccversion='', gccosandvers=''
  intsize=4, longsize=4, ptrsize=4, doublesize=8, byteorder=1234,
doublekind=3

  d_longlong=undef, longlongsize=8, d_longdbl=define, longdblsize=8,
longdblki
nd=0
  ivtype='long', ivsize=4, nvtype='double', nvsize=8, Off_t='__int64',
lseeksi
ze=8
  alignbytes=8, prototype=define
  Linker and Libraries​:
  ld='xilink', ldflags ='-nologo -nodefaultlib -debug -opt​:ref,icf
-ltcg -lib
path​:"c​:\p521\lib\CORE" -machine​:x86 "/manifestdependency​:type='Win32'
name='Mi
crosoft.Windows.Common-Controls' version='6.0.0.0'
processorArchitecture='*' pub
licKeyToken='6595b64144ccf1df' language='*'"'
  libpth=\lib
  libs=oldnames.lib kernel32.lib user32.lib gdi32.lib winspool.lib
comdlg32.l
ib advapi32.lib shell32.lib ole32.lib oleaut32.lib netapi32.lib
uuid.lib ws2_32
.lib mpr.lib winmm.lib version.lib odbc32.lib odbccp32.lib comctl32.lib
libircm
t.lib libmmd.lib msvcrt.lib
  perllibs=oldnames.lib kernel32.lib user32.lib gdi32.lib
winspool.lib comdlg
32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib netapi32.lib
uuid.lib ws
2_32.lib mpr.lib winmm.lib version.lib odbc32.lib odbccp32.lib
comctl32.lib lib
ircmt.lib libmmd.lib msvcrt.lib
  libc=msvcrt.lib, so=dll, useshrplib=true, libperl=perl521.lib
  gnulibc_version=''
  Dynamic Linking​:
  dlsrc=dl_win32.xs, dlext=dll, d_dlsymun=undef, ccdlflags=' '
  cccdlflags=' ', lddlflags='-dll -nologo -nodefaultlib -debug
-opt​:ref,icf -l
tcg -libpath​:"c​:\p521\lib\CORE" -machine​:x86
"/manifestdependency​:type='Win32'
name='Microsoft.Windows.Common-Controls' version='6.0.0.0'
processorArchitectur
e='*' publicKeyToken='6595b64144ccf1df' language='*'"'

Characteristics of this binary (from libperl)​:
  Compile-time options​: HAS_TIMES HAVE_INTERP_INTERN MULTIPLICITY NO_MATHOMS
  PERLIO_LAYERS PERL_DISABLE_PMC PERL_DONT_CREATE_GVSV
  PERL_HASH_FUNC_ONE_AT_A_TIME PERL_IMPLICIT_CONTEXT
  PERL_IMPLICIT_SYS PERL_NEW_COPY_ON_WRITE
  PERL_PRESERVE_IVUV USE_ITHREADS USE_LARGE_FILES
  USE_LOCALE USE_LOCALE_COLLATE USE_LOCALE_CTYPE
  USE_LOCALE_NUMERIC USE_LOCALE_TIME USE_PERLIO
  USE_PERL_ATOF
  Locally applied patches​:
  uncommitted-changes
  3bf2b9cbed3b650a62744c7007ca46a9843861c4
  9cecf67a0e2b3fdf7f9f7b4e76027349432b7b7d
  c38e06ad9818f57db6860c179f5071a3d49ce75b
  72a068a1b42ddf463fecb3be95fa6798771b9d91
  80ef1d38a95104b850b8e81e03dd834d72be1f6a
  4bc490ac84ce5cd8a89fce83ed50d4a9064a5f4a
  9aff0de73f187adbd5bf4f84e58008be1c972768
  3a28716c57e8b57c831160a0ec151b83d7edaa7f
  Built under MSWin32
  Compiled at Dec 5 2014 20​:59​:35
  @​INC​:
  ..\lib
  C​:/p521/srcnew/t/lib
  .

C​:\p521\srcnew\t>perl -e" my $num = 2.2250738585072014e-308; print $num"
0
C​:\p521\srcnew\t>

Perl Info

Flags:
    category=core
    severity=medium

Site configuration information for perl 5.21.7:

Configured by Administrator at Fri Dec  5 20:57:09 2014.

Summary of my perl5 (revision 5 version 21 subversion 7) configuration:
  Derived from: 3a28716c57e8b57c831160a0ec151b83d7edaa7f
  Ancestor: b68eab22f47f27e55acb9cccd69e982cdd595f45
  Platform:
    osname=MSWin32, osvers=5.2, archname=MSWin32-x86-multi-thread
    uname=''
    config_args='undef'
    hint=recommended, useposix=true, d_sigaction=undef
    useithreads=define, usemultiplicity=define
    use64bitint=undef, use64bitall=undef, uselongdouble=undef
    usemymalloc=n, bincompat5005=undef
  Compiler:
    cc='icl', ccflags ='-nologo -GF -W3 -O1 -MD -Zi -DNDEBUG -GS- -GL 
-DWIN32 -D_CONSOLE -DNO_STRICT -D_CRT_SECURE_NO_DEPRECATE 
-D_CRT_NONSTDC_NO_DEPRECATE  -DPERL_TEXTMODE_SCRIPTS 
-DPERL_HASH_FUNC_ONE_AT_A_TIME -DNO_MATHOMS -DPERL_IMPLICIT_CONTEXT 
-DPERL_IMPLICIT_SYS -DUSE_PERLIO',
    optimize='-O1 -MD -Zi -DNDEBUG -GS- -GL',
    cppflags='-DWIN32'
    ccversion='12.1.5.344', gccversion='', gccosandvers=''
    intsize=4, longsize=4, ptrsize=4, doublesize=8, byteorder=1234, 
doublekind=3
    d_longlong=undef, longlongsize=8, d_longdbl=define, longdblsize=8, 
longdblkind=0
    ivtype='long', ivsize=4, nvtype='double', nvsize=8, Off_t='__int64', 
lseeksize=8
    alignbytes=8, prototype=define
  Linker and Libraries:
    ld='xilink', ldflags ='-nologo -nodefaultlib -debug -opt:ref,icf 
-ltcg  -libpath:"c:\p521\lib\CORE"  -machine:x86 
"/manifestdependency:type='Win32' 
name='Microsoft.Windows.Common-Controls' version='6.0.0.0' 
processorArchitecture='*' publicKeyToken='6595b64144ccf1df' language='*'"'
    libpth=\lib
    libs=oldnames.lib kernel32.lib user32.lib gdi32.lib winspool.lib  
comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib  
netapi32.lib uuid.lib ws2_32.lib mpr.lib winmm.lib  version.lib 
odbc32.lib odbccp32.lib comctl32.lib libircmt.lib libmmd.lib msvcrt.lib
    perllibs=oldnames.lib kernel32.lib user32.lib gdi32.lib 
winspool.lib  comdlg32.lib advapi32.lib shell32.lib ole32.lib 
oleaut32.lib  netapi32.lib uuid.lib ws2_32.lib mpr.lib winmm.lib  
version.lib odbc32.lib odbccp32.lib comctl32.lib libircmt.lib libmmd.lib 
msvcrt.lib
    libc=msvcrt.lib, so=dll, useshrplib=true, libperl=perl521.lib
    gnulibc_version=''
  Dynamic Linking:
    dlsrc=dl_win32.xs, dlext=dll, d_dlsymun=undef, ccdlflags=' '
    cccdlflags=' ', lddlflags='-dll -nologo -nodefaultlib -debug 
-opt:ref,icf -ltcg  -libpath:"c:\p521\lib\CORE"  -machine:x86 
"/manifestdependency:type='Win32' 
name='Microsoft.Windows.Common-Controls' version='6.0.0.0' 
processorArchitecture='*' publicKeyToken='6595b64144ccf1df' language='*'"'

Locally applied patches:
    uncommitted-changes
    3bf2b9cbed3b650a62744c7007ca46a9843861c4
    9cecf67a0e2b3fdf7f9f7b4e76027349432b7b7d
    c38e06ad9818f57db6860c179f5071a3d49ce75b
    72a068a1b42ddf463fecb3be95fa6798771b9d91
    80ef1d38a95104b850b8e81e03dd834d72be1f6a
    4bc490ac84ce5cd8a89fce83ed50d4a9064a5f4a
    9aff0de73f187adbd5bf4f84e58008be1c972768
    3a28716c57e8b57c831160a0ec151b83d7edaa7f


@INC for perl 5.21.7:
    C:/p521/srcnew/lib
    .


Environment for perl 5.21.7:
    CYGWIN=tty
    HOME (unset)
    LANG (unset)
    LANGUAGE (unset)
    LD_LIBRARY_PATH=/usr/lib/x86:/usr/X11R6/lib
    LOGDIR (unset)
    PATH=C:\WINDOWS\system32;C:\Program Files (x86)\Intel\Composer XE 
2011 SP1\redist\ia32\compiler;C:\Program Files (x86)\Intel\Composer XE 
2011 SP1\bin\ia32;C:\Program Files (x86)\Microsoft Visual Studio 
9.0\VC\BIN;C:\Program Files (x86)\Microsoft Visual Studio 
9.0\Common7\IDE;C:\Program Files (x86)\Intel\Composer XE 2011 
SP1\ipp\..\redist\ia32\ipp;C:\Perl\bin;C:\WINDOWS;C:\Program Files 
(x86)\Git\bin;C:\Program Files\Microsoft SDKs\Windows\v6.0A\Bin;
    PERL_BADLANG (unset)
    SHELL (unset)


@p5pRT
Copy link
Author

p5pRT commented Dec 6, 2014

From @hvds

bulk88 (via RT) <perlbug-followup@​perl.org> wrote​:
[...]
:Not sure what to
:debug next or where perl converts Perl source code FPs constants to
:machine NVs.

I think that'd be Perl_scan_num() in toke.c.

Hugo

@p5pRT
Copy link
Author

p5pRT commented Dec 6, 2014

The RT System itself - Status changed from 'new' to 'open'

@p5pRT
Copy link
Author

p5pRT commented Jan 2, 2015

From @bulk88

Some more facts about this bug

ICC 32 bit blead perl -Od non-DEBUGGING, not reproduced
ICC 32 bit blead perl -O1 non-DEBUGGING, reproduced

This will be difficult and slow to fix since a C debugger is very difficult to use with optimized code.

--
bulk88 ~ bulk88 at hotmail.com

@p5pRT
Copy link
Author

p5pRT commented May 19, 2015

From @bulk88

On Fri Jan 02 00​:38​:44 2015, bulk88 wrote​:

Some more facts about this bug

ICC 32 bit blead perl -Od non-DEBUGGING, not reproduced
ICC 32 bit blead perl -O1 non-DEBUGGING, reproduced

This will be difficult and slow to fix since a C debugger is very
difficult to use with optimized code.

Still a problem on 5.22 RC 0.


Test Summary Report


opbasic/arith.t (Wstat​: 0 Tests​:
186 Failed​: 1)
  Failed test​: 175
Files=2384, Tests=696238, 2381 wallclock secs (88.67 usr + 22.41 sys = 111.08 CP
U)
Result​: FAIL
NMAKE : fatal error U1077​: '.\perl.exe' : return code '0x1'
Stop.


--
bulk88 ~ bulk88 at hotmail.com

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Projects
None yet
Development

No branches or pull requests

3 participants