[Bug c/11850] New: x86-asm-compile fails with internal compiler error: in instantiate_virtual_regs_1
development--gcc dot gnu dot org at medium dot net
gcc-bugzilla@gcc.gnu.org
Thu Aug 7 21:44:00 GMT 2003
PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11850
Summary: x86-asm-compile fails with internal compiler error: in
instantiate_virtual_regs_1
Product: gcc
Version: 3.3
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: c
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: development--gcc dot gnu dot org at medium dot net
CC: gcc-bugs at gcc dot gnu dot org
GCC build triplet: i486-suse-linux-gnu
GCC host triplet: i486-suse-linux-gnu
GCC target triplet: i486-suse-linux-gnu
gcc -v:
Reading specs from /usr/lib/gcc-lib/i486-suse-linux/3.3/specs
Configured with: ../configure --enable-threads=posix --prefix=/usr
--with-local-prefix=/usr/local --infodir=/usr/share/info --mandir=/usr/share/man
--libdir=/usr/lib --enable-languages=c,c++,f77,objc,java,ada --disable-checking
--enable-libgcj --with-gxx-include-dir=/usr/include/g++ --with-slibdir=/lib
--with-system-zlib --enable-shared --enable-__cxa_atexit i486-suse-linux
Thread model: posix
gcc version 3.3 20030226 (prerelease) (SuSE Linux)
The bug also happens on cygwin 1.3.22(0.78/3/2) on x86:
Reading specs from /bin/../lib/gcc-lib/i686-pc-cygwin/3.2/specs
Configured with: /netrel/src/gcc-3.2-3/configure
--enable-languages=c,c++,f77,java --enable-libgcj --enable-threads=posix
--with-system-zlib --e
nable-nls --without-included-gettext --enable-interpreter
--disable-sjlj-exceptions --disable-version-specific-runtime-libs
--enable-shared --bu
ild=i686-pc-linux --host=i686-pc-cygwin --target=i686-pc-cygwin --enable-haifa
--prefix=/usr --exec-prefix=/usr --sysconfdir=/etc --libdir=/usr/
lib --includedir=/nonexistent/include --libexecdir=/usr/sbin
Thread model: posix
gcc version 3.2 20020927 (prerelease)
The source code is:
#include <sys/types.h>
u_int8_t readPortByte(u_int16_t port) {
u_int8_t result;
#if (1)
__asm__(
"inb %%dx,%%al"
:"=al"(result)
:"dx"(port)
);
#else
__asm__(
"inb %[port],%[result]"
:[result] "=" (result)
:[port] "" (port)
);
#endif
return result;
}
compile the sourcecode with
gcc testcase.c
with an x86 target (the bug happens on both cygwin and linux)
The preprocessor output is:
# 1 "testcase.c"
# 1 "<built-in>"
# 1 "<command line>"
# 1 "testcase.c"
# 1 "/usr/include/sys/types.h" 1 3 4
# 27 "/usr/include/sys/types.h" 3 4
# 1 "/usr/include/features.h" 1 3 4
# 291 "/usr/include/features.h" 3 4
# 1 "/usr/include/sys/cdefs.h" 1 3 4
# 292 "/usr/include/features.h" 2 3 4
# 314 "/usr/include/features.h" 3 4
# 1 "/usr/include/gnu/stubs.h" 1 3 4
# 315 "/usr/include/features.h" 2 3 4
# 28 "/usr/include/sys/types.h" 2 3 4
# 1 "/usr/include/bits/types.h" 1 3 4
# 28 "/usr/include/bits/types.h" 3 4
# 1 "/usr/include/bits/wordsize.h" 1 3 4
# 29 "/usr/include/bits/types.h" 2 3 4
# 1 "/usr/lib/gcc-lib/i486-suse-linux/3.3/include/stddef.h" 1 3 4
# 213 "/usr/lib/gcc-lib/i486-suse-linux/3.3/include/stddef.h" 3 4
typedef unsigned int size_t;
# 32 "/usr/include/bits/types.h" 2 3 4
typedef unsigned char __u_char;
typedef unsigned short int __u_short;
typedef unsigned int __u_int;
typedef unsigned long int __u_long;
typedef signed char __int8_t;
typedef unsigned char __uint8_t;
typedef signed short int __int16_t;
typedef unsigned short int __uint16_t;
typedef signed int __int32_t;
typedef unsigned int __uint32_t;
__extension__ typedef signed long long int __int64_t;
__extension__ typedef unsigned long long int __uint64_t;
__extension__ typedef long long int __quad_t;
__extension__ typedef unsigned long long int __u_quad_t;
# 128 "/usr/include/bits/types.h" 3 4
# 1 "/usr/include/bits/typesizes.h" 1 3 4
# 129 "/usr/include/bits/types.h" 2 3 4
typedef unsigned long long int __dev_t;
typedef unsigned int __uid_t;
typedef unsigned int __gid_t;
typedef unsigned long int __ino_t;
typedef unsigned long long int __ino64_t;
typedef unsigned int __mode_t;
typedef unsigned int __nlink_t;
typedef long int __off_t;
typedef long long int __off64_t;
typedef int __pid_t;
typedef struct { int __val[2]; } __fsid_t;
typedef long int __clock_t;
typedef unsigned long int __rlim_t;
typedef unsigned long long int __rlim64_t;
typedef unsigned int __id_t;
typedef long int __time_t;
typedef unsigned int __useconds_t;
typedef long int __suseconds_t;
typedef int __daddr_t;
typedef long int __swblk_t;
typedef int __key_t;
typedef int __clockid_t;
typedef int __timer_t;
typedef long int __blksize_t;
typedef long int __blkcnt_t;
typedef long long int __blkcnt64_t;
typedef unsigned long int __fsblkcnt_t;
typedef unsigned long long int __fsblkcnt64_t;
typedef unsigned long int __fsfilcnt_t;
typedef unsigned long long int __fsfilcnt64_t;
typedef int __ssize_t;
typedef __off64_t __loff_t;
typedef __quad_t *__qaddr_t;
typedef char *__caddr_t;
typedef int __intptr_t;
typedef unsigned int __socklen_t;
# 32 "/usr/include/sys/types.h" 2 3 4
typedef __u_char u_char;
typedef __u_short u_short;
typedef __u_int u_int;
typedef __u_long u_long;
typedef __quad_t quad_t;
typedef __u_quad_t u_quad_t;
typedef __fsid_t fsid_t;
typedef __loff_t loff_t;
typedef __ino_t ino_t;
# 62 "/usr/include/sys/types.h" 3 4
typedef __dev_t dev_t;
typedef __gid_t gid_t;
typedef __mode_t mode_t;
typedef __nlink_t nlink_t;
typedef __uid_t uid_t;
typedef __off_t off_t;
# 100 "/usr/include/sys/types.h" 3 4
typedef __pid_t pid_t;
typedef __id_t id_t;
typedef __ssize_t ssize_t;
typedef __daddr_t daddr_t;
typedef __caddr_t caddr_t;
typedef __key_t key_t;
# 133 "/usr/include/sys/types.h" 3 4
# 1 "/usr/include/time.h" 1 3 4
# 74 "/usr/include/time.h" 3 4
typedef __time_t time_t;
# 92 "/usr/include/time.h" 3 4
typedef __clockid_t clockid_t;
# 104 "/usr/include/time.h" 3 4
typedef __timer_t timer_t;
# 134 "/usr/include/sys/types.h" 2 3 4
# 147 "/usr/include/sys/types.h" 3 4
# 1 "/usr/lib/gcc-lib/i486-suse-linux/3.3/include/stddef.h" 1 3 4
# 148 "/usr/include/sys/types.h" 2 3 4
typedef unsigned long int ulong;
typedef unsigned short int ushort;
typedef unsigned int uint;
# 191 "/usr/include/sys/types.h" 3 4
typedef int int8_t __attribute__ ((__mode__ (__QI__)));
typedef int int16_t __attribute__ ((__mode__ (__HI__)));
typedef int int32_t __attribute__ ((__mode__ (__SI__)));
typedef int int64_t __attribute__ ((__mode__ (__DI__)));
typedef unsigned int u_int8_t __attribute__ ((__mode__ (__QI__)));
typedef unsigned int u_int16_t __attribute__ ((__mode__ (__HI__)));
typedef unsigned int u_int32_t __attribute__ ((__mode__ (__SI__)));
typedef unsigned int u_int64_t __attribute__ ((__mode__ (__DI__)));
typedef int register_t __attribute__ ((__mode__ (__word__)));
# 213 "/usr/include/sys/types.h" 3 4
# 1 "/usr/include/endian.h" 1 3 4
# 37 "/usr/include/endian.h" 3 4
# 1 "/usr/include/bits/endian.h" 1 3 4
# 38 "/usr/include/endian.h" 2 3 4
# 214 "/usr/include/sys/types.h" 2 3 4
# 1 "/usr/include/sys/select.h" 1 3 4
# 31 "/usr/include/sys/select.h" 3 4
# 1 "/usr/include/bits/select.h" 1 3 4
# 32 "/usr/include/sys/select.h" 2 3 4
# 1 "/usr/include/bits/sigset.h" 1 3 4
# 23 "/usr/include/bits/sigset.h" 3 4
typedef int __sig_atomic_t;
typedef struct
{
unsigned long int __val[(1024 / (8 * sizeof (unsigned long int)))];
} __sigset_t;
# 35 "/usr/include/sys/select.h" 2 3 4
typedef __sigset_t sigset_t;
# 1 "/usr/include/time.h" 1 3 4
# 118 "/usr/include/time.h" 3 4
struct timespec
{
__time_t tv_sec;
long int tv_nsec;
};
# 45 "/usr/include/sys/select.h" 2 3 4
# 1 "/usr/include/bits/time.h" 1 3 4
# 69 "/usr/include/bits/time.h" 3 4
struct timeval
{
__time_t tv_sec;
__suseconds_t tv_usec;
};
# 47 "/usr/include/sys/select.h" 2 3 4
typedef __suseconds_t suseconds_t;
typedef long int __fd_mask;
# 67 "/usr/include/sys/select.h" 3 4
typedef struct
{
__fd_mask __fds_bits[1024 / (8 * sizeof (__fd_mask))];
} fd_set;
typedef __fd_mask fd_mask;
# 99 "/usr/include/sys/select.h" 3 4
extern int select (int __nfds, fd_set *__restrict __readfds,
fd_set *__restrict __writefds,
fd_set *__restrict __exceptfds,
struct timeval *__restrict __timeout) ;
# 122 "/usr/include/sys/select.h" 3 4
# 217 "/usr/include/sys/types.h" 2 3 4
# 1 "/usr/include/sys/sysmacros.h" 1 3 4
# 220 "/usr/include/sys/types.h" 2 3 4
# 231 "/usr/include/sys/types.h" 3 4
typedef __blkcnt_t blkcnt_t;
typedef __fsblkcnt_t fsblkcnt_t;
typedef __fsfilcnt_t fsfilcnt_t;
# 266 "/usr/include/sys/types.h" 3 4
# 1 "/usr/include/bits/pthreadtypes.h" 1 3 4
# 23 "/usr/include/bits/pthreadtypes.h" 3 4
# 1 "/usr/include/bits/sched.h" 1 3 4
# 83 "/usr/include/bits/sched.h" 3 4
struct __sched_param
{
int __sched_priority;
};
# 24 "/usr/include/bits/pthreadtypes.h" 2 3 4
struct _pthread_fastlock
{
long int __status;
int __spinlock;
};
typedef struct _pthread_descr_struct *_pthread_descr;
typedef struct __pthread_attr_s
{
int __detachstate;
int __schedpolicy;
struct __sched_param __schedparam;
int __inheritsched;
int __scope;
size_t __guardsize;
int __stackaddr_set;
void *__stackaddr;
size_t __stacksize;
} pthread_attr_t;
__extension__ typedef long long __pthread_cond_align_t;
typedef struct
{
struct _pthread_fastlock __c_lock;
_pthread_descr __c_waiting;
char __padding[48 - sizeof (struct _pthread_fastlock)
- sizeof (_pthread_descr) - sizeof (__pthread_cond_align_t)];
__pthread_cond_align_t __align;
} pthread_cond_t;
typedef struct
{
int __dummy;
} pthread_condattr_t;
typedef unsigned int pthread_key_t;
typedef struct
{
int __m_reserved;
int __m_count;
_pthread_descr __m_owner;
int __m_kind;
struct _pthread_fastlock __m_lock;
} pthread_mutex_t;
typedef struct
{
int __mutexkind;
} pthread_mutexattr_t;
typedef int pthread_once_t;
# 150 "/usr/include/bits/pthreadtypes.h" 3 4
typedef unsigned long int pthread_t;
# 267 "/usr/include/sys/types.h" 2 3 4
# 3 "testcase.c" 2
u_int8_t readPortByte(u_int16_t port) {
u_int8_t result;
__asm__(
"inb %%dx,%%al"
:"=al"(result)
:"dx"(port)
);
# 21 "testcase.c"
return result;
}
The compiler output is:
testcase.c: In function `readPortByte':
testcase.c:22: internal compiler error: in instantiate_virtual_regs_1, at
function.c:3933
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://www.gnu.org/software/gcc/bugs.html> for instructions.
The expected output is: <no error>
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