https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97578
Bug ID: 97578
Summary: ice during IPA pass: inline
Product: gcc
Version: 11.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: dcb314 at hotmail dot com
Target Milestone: ---
For this C code:
typedef long unsigned int size_t;
typedef unsigned char __uint8_t;
typedef unsigned int __uint32_t;
typedef __uint8_t uint8_t;
typedef __uint32_t uint32_t;
struct md5_s {
uint32_t nblocks;
uint8_t buf[64];
int count;
};
typedef struct md5_s MD5_CONTEXT;
void * md5_write_context;
static void md5_write( const void *inbuf_arg , size_t inlen) {
const unsigned char *inbuf = inbuf_arg;
MD5_CONTEXT *hd = md5_write_context;
if( hd->count == 64 ) transform( hd, hd->buf );
hd->nblocks++;
if( !inbuf ) return;
if( hd->count ) md5_write( 0, 0 );
while( inlen >= 64 ) ;
for( ;
inlen && hd->count < 64;
inlen-- ) hd->buf[hd->count++] = *inbuf++;
}
void * md5_final_context;
static void md5_final( void) {
md5_write( 0, 0);
}
void AddMD5( const void *data, size_t len ) {
md5_write( data, len );
}
void EndMD5( struct md5_s *h ) {
md5_final( );
}
compiled with recent gcc trunk and flag -g -O3, does this:
during IPA pass: inline
bug659.c: In function ‘AddMD5’:
bug659.c:30:9: internal compiler error: Segmentation fault
30 | md5_write( data, len );
| ^~~~~~~~~~~~~~~~~~~~~~~
0xbd15df crash_signal
../../trunk.git/gcc/toplev.c:330
0xc4b608 copy_cfg_body
../../trunk.git/gcc/tree-inline.c:3118
The bug first seems to occur sometime between 20201022 and 20201023.
