[Bug regression/28373] New: C code gives unaligned access
/* gcc-4.1.1 gives unaligned access on alphaev68-dec-osf5.1b
regression from gcc-3.4.4
% gcc -v
Using built-in specs.
Target: alphaev68-dec-osf5.1b
Configured with: /usr/local/gcc-4.1.1/src/gcc-4.1.1/configure
--enable-languages=c --prefix=/usr/local/gcc-4.1.1/alpha-OSF1-V5
Thread model: posix
gcc version 4.1.1
%
%
gcc -o foo foo.c
% foo
Unaligned access pid=141992 foo va=0x11fffbffc pc=0x12000115c ra=0x1200011a0
inst=0x
9d42
%
*/
typedef struct
{
doubled;
} aa;
int foo(v)
aa *v;
{
v-d = (double) 1;
return 0;
}
int main()
{
int cc[1];
int i1;
int i2;
int i3;
int i4;
int i5;
int i6;
int i7; /* if remove this line, then no problem! */
foo(cc); /* says unaligned access */
return 0;
}
--
Summary: C code gives unaligned access
Product: gcc
Version: 4.1.1
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: regression
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: kminola at eng dot umd dot edu
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28373
[Bug other/27843] New: gcc-4.2-20060527 make install fails on alphaev68-dec-osf5.1b
For gcc-4.2-20060527(also gcc-4.2-20060520) on alphaev68-dec-osf5.1b after configure --enable-languages=c make bootstrap make install 'make install' fails with /home/kate/gcc-4.2-20060527/src/gcc-4.2-20060527/install-sh -c fixinc.sh /home/kate/gcc-4.2-20060527/alpha-OSF1-V5/libexec/gcc/alphaev68-dec-osf5.1b/4.2.0/install-tools/fixin c.sh /home/kate/gcc-4.2-20060527/src/gcc-4.2-20060527/install-sh -c fixincl \ /home/kate/gcc-4.2-20060527/alpha-OSF1-V5/libexec/gcc/alphaev68-dec-osf5.1b/4.2.0/install-tools/fixincl /home/kate/gcc-4.2-20060527/alpha-OSF1-V5/lib/gcc/alphaev68-dec-osf5.1b/4.2.0/install-tools/mkheaders.conf /bin/sh: : cannot execute sed: Function s,[ cannot be parsed. /bin/sh: /]*/../,, -e ta: not found make[2]: *** [install-mkheaders] Error 1 -- Summary: gcc-4.2-20060527 make install fails on alphaev68-dec- osf5.1b Product: gcc Version: 4.2.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: other AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: kminola at eng dot umd dot edu GCC build triplet: alphaev68-dec-osf5.1b GCC host triplet: alphaev68-dec-osf5.1b GCC target triplet: alphaev68-dec-osf5.1b http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27843
[Bug regression/27671] New: optimization error on pentium4-Linux with %, regression from gcc-4.1.0
/*
% gcc -O0 -march=pentium4 -o foo foo.c ; foo
ok
% gcc -O1 -march=pentium4 -o foo foo.c ; foo
bug
% gcc -O1 -o foo foo.c ; foo
ok
%
% gcc -v
Using built-in specs.
Target: i686-pc-linux-gnu
Configured with: /home/kate/test/gcc-4.2-20060513/configure
--enable-languages=c --prefix=/home/kate/test/bin/i686-Linux
Thread model: posix
gcc version 4.2.0 20060513 (experimental)
%
Isolated from gmp-4.2.1 tests/t-mul.c and mpn/generic/mul_fft.c
*/
#include stdio.h
void bar (int k)
{
int n;
n = k % 2;
if (n) {
printf(ok\n);
} else {
printf(bug\n);
}
}
int main()
{
bar(1);
}
--
Summary: optimization error on pentium4-Linux with %, regression
from gcc-4.1.0
Product: gcc
Version: 4.2.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: regression
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: kminola at eng dot umd dot edu
GCC build triplet: i686-pc-linux-gnu
GCC host triplet: i686-pc-linux-gnu
GCC target triplet: i686-pc-linux-gnu
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27671
[Bug other/27614] New: stage 1 intl configure failure
With gcc-4.2-20060513 Configuring stage 1 in ./intl ... checking for void *... yes cchecking for void *... yes checking size of void *... configure: error: cannot compute sizeof (void *), 77 See `config.log' for more details. make[2]: *** [configure-stage1-gcc] Error 1 -- Summary: stage 1 intl configure failure Product: gcc Version: 4.2.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: other AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: kminola at eng dot umd dot edu GCC build triplet: powerpc-apple-darwin8.6.0 GCC host triplet: powerpc-apple-darwin8.6.0 GCC target triplet: powerpc-apple-darwin8.6.0 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27614
[Bug other/27614] stage 1 intl configure failure
--- Comment #2 from kminola at eng dot umd dot edu 2006-05-15 15:37 --- Sorry, found my error. -- kminola at eng dot umd dot edu changed: What|Removed |Added Status|WAITING |RESOLVED Resolution||FIXED http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27614
[Bug c/27535] New: ICE, Regression from gcc-4.1.0
/*
ICE using gcc-4.2-20060506 on x86_64-unknown-linux-gnu
Regression from gcc-4.1.0
Source cut down from gmp-4.2.1/tests/refmpf.c
% gcc-4.2-20060506 -O3 -c foo.c
foo.c: In function âfooâ:
foo.c:27: internal compiler error: Segmentation fault
Please submit a full bug report,
with preprocessed source if appropriate.
See URL:http://gcc.gnu.org/bugs.html for instructions.
%
% gcc-4.2-20060506 -O2 -c foo.c
%
% gcc-4.2-20060506 -v
Using built-in specs.
Target: x86_64-unknown-linux-gnu
Configured with: /home/kate/test/gcc-4.2-20060506/configure
--enable-languages=c --prefix=/home/kate/test/bin/x86_64-Linux
Thread model: posix
gcc version 4.2.0 20060506 (experimental)
%
%
% gcc -v
Using built-in specs.
Target: x86_64-unknown-linux-gnu
Configured with: /usr/local/gcc-4.1.0/src/gcc-4.1.0/configure
--enable-languages=c,c++
--prefix=/usr/local/gcc-4.1.0/x86_64-Linux-g++
Thread model: posix
gcc version 4.1.0
%
% gcc -O3 -c foo.c
%
*/
#include stdlib.h
typedef struct
{
int a;
} strt;
typedef strt *ptr;
void
foo (ptr w, int u, int v)
{
int b;
if (u == 0)
{
b = v 0;
goto done;
}
if (v == 0)
{
b = u 0;
}
done:
w-a = b == 0 ? 1 : -1;
}
--
Summary: ICE, Regression from gcc-4.1.0
Product: gcc
Version: 4.2.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: kminola at eng dot umd dot edu
GCC build triplet: x86_64-unknown-linux-gnu
GCC host triplet: x86_64-unknown-linux-gnu
GCC target triplet: x86_64-unknown-linux-gnu
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27535
[Bug c/26533] New: error: invalid use of void expression
This is probably pretty dodgy C code, but I
find it strange that program foo.c compiles
while program bar.c gives an error. Is this
a bug?
--- foo.c --
#include stdio.h
int main()
{
int ii;
ii = 276;
void *vv = (void *)ii;
}
--- foo.c --
--- bar.c --
#include stdio.h
int main()
{
int ii;
void *vv;
ii = 276;
*vv = (void *)ii;
}
--- bar.c --
% gcc -o foo foo.c
% gcc -o bar bar.c
bar.c: In function ESC)B?main?:
bar.c:10: warning: dereferencing ESC)B?void *? pointer
bar.c:10: error: invalid use of void expression
%
For completeness on this report, this was on
% gcc -v
Using built-in specs.
Target: i686-pc-linux-gnu
Configured with: /usr/local/gcc-4.0.2/src/gcc-4.0.2/configure
--enable-languages=c --prefix=/usr/local/gcc-4.0.2/x86-Linux
Thread model: posix
gcc version 4.0.2
%
--
Summary: error: invalid use of void expression
Product: gcc
Version: 4.0.2
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: kminola at eng dot umd dot edu
GCC build triplet: i686-pc-linux-gnu
GCC host triplet: i686-pc-linux-gnu
GCC target triplet: i686-pc-linux-gnu
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26533
[Bug regression/26180] New: optimization regression on x86-SunOS
/*
% gcc -v
Using built-in specs.
Target: i386-pc-solaris2.9
Configured with: /usr/local/gcc-4.0.2/src/gcc-4.0.2/configure
--enable-languages=c --with-gnu-as
--with-as=/usr/local/binutils-2.16.1/x86-SunOS-gcc-4.0.1/bin/as
--with-gnu-ld
--with-ld=/usr/local/binutils-2.16.1/x86-SunOS-gcc-4.0.1/bin/ld
--prefix=/usr/local/gcc-4.0.2/x86-SunOS-gnu-as-ld
Thread model: posix
gcc version 4.0.2
%
% gcc -O0 -o foo foo.c
% foo
z= 1
%
% gcc -O2 -o foo foo.c
% foo
z= 1
%
%
% gcc-4.1 -v
Using built-in specs.
Target: i386-pc-solaris2.9
Configured with: /home/kate/gcc-4.1-20060203/src/gcc-4.1-20060203/configure
--enable-languages=c --with-gnu-as
--with-as=/usr/local/binutils-2.16.1/x86-SunOS-gcc-4.0.1/bin/as
--with-gnu-ld
--with-ld=/usr/local/binutils-2.16.1/x86-SunOS-gcc-4.0.1/bin/ld
--prefix=/home/kate/gcc-4.1-20060203/x86-SunOS-gnu-as-ld
Thread model: posix
gcc version 4.1.0 20060203 (prerelease)
%
%
% gcc-4.1 -O0 -o foo foo.c
z = 1
%
% gcc-4.1 -O2 -o foo foo.c
z = -1
%
*/
#include stdio.h
int bar(x, y)
int x, y;
{
int x1, y1;
int x2, y2;
unsigned int x3, y3, w;
int z;
x1 = (x (1 30));
y1 = (y (1 30));
if (x1 y1) {
x2 = ((x 0)? (x): -(x));
y2 = ((y 0)? (y): -(y));
x3 = x2;
y3 = y2;
w = x3 * y3;
if (w = (1 30)) {
z = 1;
} else{
z = -1;
}
}
return z;
}
int main()
{
int x, y, z;
x = 536870912; /* 2^29 */
y = 2;
z = bar(x, y);
printf(z= %d\n, z);
}
--
Summary: optimization regression on x86-SunOS
Product: gcc
Version: 4.1.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: regression
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: kminola at eng dot umd dot edu
GCC build triplet: i386-pc-solaris2.9
GCC host triplet: i386-pc-solaris2.9
GCC target triplet: i386-pc-solaris2.9
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26180
[Bug c/22267] New: C optimization error with string.h
/* C optimization error with string.h on
ia64-unknown-linux-gnu
(also occurs on alphaev56-unknown-linux-gnu, but not on other
architectures that I have tried)
% gcc -v
Using built-in specs.
Target: ia64-unknown-linux-gnu
Configured with: /usr/local/gcc-4.0.0/src/gcc-4.0.0/configure
--enable-languages=c --prefix=/usr/local/gcc-4.0.0/ia64-Linux
Thread model: posix
gcc version 4.0.0
%
% gcc -O0 -c foo.c
%
% gcc -O1 -c foo.c
In file included from /usr/include/bits/string2.h:1211,
from /usr/include/string.h:375,
from foo.c:8:
/usr/include/stdlib.h:556: error: parse error before â token
/usr/include/stdlib.h:556: error: parse error before â token
%
Bug also occurs if use gcc-4.0-20050623 or gcc-4.1-20050625.
*/
extern void *f_mem_malloc();
#define mem_malloc(n) f_mem_malloc((unsigned long)(n))
#define malloc mem_malloc
#include string.h
int main()
{
return(1);
}
--
Summary: C optimization error with string.h
Product: gcc
Version: 4.0.0
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: c
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: kminola at eng dot umd dot edu
CC: gcc-bugs at gcc dot gnu dot org
GCC build triplet: ia64-unknown-linux-gnu
GCC host triplet: ia64-unknown-linux-gnu
GCC target triplet: ia64-unknown-linux-gnu
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=22267
[Bug c/21757] New: darwin-ldouble.o not a valid ppc64 mach-o file
/*
darwin-ldouble.o not a valid ppc64 mach-o file
% uname -a
Darwin varro 8.1.0 Darwin Kernel Version 8.1.0: Tue May 10 18:16:08 PDT 2005;
root:xnu-792.1.5.obj~4/RELEASE_PPC Power Macintosh powerpc
%
% gcc -v
Using built-in specs.
Target: powerpc-apple-darwin8.1.0
Configured with: /usr/local/gcc-4.0.0/src/gcc-4.0.0/configure
--enable-languages=c --prefix=/usr/local/gcc-4.0.0/powerpc-Darwin
Thread model: posix
gcc version 4.0.0
%
% gcc -o foo foo.c
%
% gcc -m64 -o foo foo.c
ld64 failed: in
/private/var/automount/usr/local/gcc-4.0.0/powerpc-Darwin/bin/../lib/gcc/powerpc-apple-darwin8.1.0/4.0.0/libgcc.a(darwin-ldouble.o),
not a valid ppc64 mach-o file
collect2: ld returned 1 exit status
%
% gcc-4.0-apple -v
Reading specs from /usr/lib/gcc/powerpc-apple-darwin8/4.0.0/specs
Configured with: /private/var/tmp/gcc/gcc-4061.obj~8/src/configure
--disable-checking --prefix=/usr --mandir=/share/man
--enable-languages=c,objc,c++,obj-c++
--program-transform-name=/^[cg][^+.-]*$/s/$/-4.0/
--with-gxx-include-dir=/include/gcc/darwin/4.0/c++ --build=powerpc-apple-darwin8
--host=powerpc-apple-darwin8 --target=powerpc-apple-darwin8
Thread model: posix
gcc version 4.0.0 20041026 (Apple Computer, Inc. build 4061)
%
% gcc-4.0-apple -m64 -o foo foo.c
%
*/
int
main ()
{
long double div9, div10;
#define TWO_64 18446744073709551616.0
#define TWO_128 (TWO_64 * TWO_64)
#define TWO_256 (TWO_128 * TWO_128)
div9 = (long double) (double) (TWO_256 * TWO_256);
div10 = div9 * div9;
return 0;
}
--
Summary: darwin-ldouble.o not a valid ppc64 mach-o file
Product: gcc
Version: 4.0.0
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: c
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: kminola at eng dot umd dot edu
CC: gcc-bugs at gcc dot gnu dot org
GCC build triplet: powerpc-apple-darwin8.1.0
GCC host triplet: powerpc-apple-darwin8.1.0
GCC target triplet: powerpc-apple-darwin8.1.0
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21757
[Bug regression/21390] New: alphaev68-dec-osf5.1b long double optimization bug with gcc-4.0.0
/*
alphaev68-dec-osf5.1b long double optimization bug with gcc-4.0.0
regression from gcc-3.4.3
% config.guess
alphaev68-dec-osf5.1b
% gcc -v
Using built-in specs.
Target: alphaev68-dec-osf5.1b
Configured with: /usr/local/gcc-4.0.0/src/gcc-4.0.0/configure
--enable-languages=c --prefix=/usr/local/gcc-4.0.0/alpha-OSF1-V5
Thread model: posix
gcc version 4.0.0
%
% gcc -mieee-with-inexact -o foo foo.c
% foo
1
%
% gcc -mieee-with-inexact -O1 -o foo foo.c
% foo
0
%
only happens with long double, not with double
*/
#include stdio.h
#define DBL_NAN ((long double) 0.0/0.0)
static int
Isnan_ld (long double d)
{
int ans;
long double __x = (d);
if ((d) != __x)
ans = 1;
else
ans = 0;
return ans;
}
int
main (int argc, char *argv[])
{
long double d;
d = (long double) DBL_NAN;
printf(%d\n, Isnan_ld(d));
return 0;
}
--
Summary: alphaev68-dec-osf5.1b long double optimization bug with
gcc-4.0.0
Product: gcc
Version: 4.0.0
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: regression
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: kminola at eng dot umd dot edu
CC: gcc-bugs at gcc dot gnu dot org
GCC build triplet: alphaev68-dec-osf5.1b
GCC host triplet: alphaev68-dec-osf5.1b
GCC target triplet: alphaev68-dec-osf5.1b
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21390
[Bug regression/20608] New: regression - Bus Error - union of structures
/*
% gcc-3.4.3 -m64 -o foo foo.c
% foo
0
here
0
%
% gcc-4.0 -m64 -o foo foo.c
% foo
0
here
Bus Error (core dumped)
%
% uname -a
SunOS portia 5.8 Generic_117350-18 sun4u sparc SUNW,Sun-Blade-100
%
% gcc-4.0 -v
Using built-in specs.
Target: sparc-sun-solaris2.8
Configured with: /home/kate/gcc-4.0-20050319/src/gcc-4.0-20050319/configure
--enable-languages=c --prefix=/home/kate/gcc-4.0-20050319/sparc-SunOS
Thread model: posix
gcc version 4.0.0 20050319 (prerelease)
%
% gcc-3.4.3 -v
Reading specs from
/usr/local/gcc-3.4.3/sparc-SunOS/lib/gcc/sparc-sun-solaris2.8/3.4.3/specs
Configured with: /usr/local/gcc-3.4.3/src/gcc-3.4.3/configure
--enable-languages=c --prefix=/usr/local/gcc-3.4.3/sparc-SunOS
Thread model: posix
gcc version 3.4.3
%
*/
#include stdio.h
typedef struct
{
int a;
int b;
int c;
} t_m;
typedef struct
{
int *f;
} t_g;
typedef union
{
t_m m;
t_g g;
} t_u;
void bar(t_u *u)
{
printf(here\n);
printf(%lx\n, *u);
}
main()
{
t_m u;
printf(%lx\n, u);
bar( (t_u *)u );
}
--
Summary: regression - Bus Error - union of structures
Product: gcc
Version: 4.0.0
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: regression
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: kminola at eng dot umd dot edu
CC: gcc-bugs at gcc dot gnu dot org
GCC build triplet: sparc-sun-solaris2.8
GCC host triplet: sparc-sun-solaris2.8
GCC target triplet: sparc-sun-solaris2.8
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20608
[Bug regression/20412] New: ICE when -O1, regression from gcc-3.4.3
/*
gcc-4.0 sparc-SunOS bug
gcc-4.0 -O0 -c foo.c // ok
gcc-4.0 -O1 -c foo.c // ICE
% gcc-4.0 -v
Using built-in specs.
Target: sparc-sun-solaris2.8
Configured with: /home/kate/gcc-4.0-20050305/src/gcc-4.0-20050305/configure
--enable-languages=c --prefix=/home/kate/gcc-4.0-20050305/sparc-SunOS
Thread model: posix
gcc version 4.0.0 20050305 (prerelease)
%
*/
#define FALSE 0
int
foo()
{
int a,b,g;
int i,len;
int stop;
len = 10;
stop = FALSE;
for (i=0; ilen; i++)
{
a = bar1() ? 0 : 1;
b = bar2() ? 0 : 1;
g = bar3() ? 0 : 1;
if (stop = ((a+b) % 2 != g)) break;
}
return stop;
}
--
Summary: ICE when -O1, regression from gcc-3.4.3
Product: gcc
Version: 4.0.0
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: regression
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: kminola at eng dot umd dot edu
CC: gcc-bugs at gcc dot gnu dot org
GCC build triplet: sparc-sun-solaris2.8
GCC host triplet: sparc-sun-solaris2.8
GCC target triplet: sparc-sun-solaris2.8
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20412
