egcs-19990228: ICE gcc/rtlanal.c:961

[Jeffrey A Law]

  In message <199903050150.WAA20680@sleipnir.valparaiso.cl>you write:
  > i586, linux-2.2.2-ac7, glibc-2.1, haifa-enabled egcs built with
  > "-O2 -fomit-frame-pointer -march=pentium". The following file (heavily
  > chopped to size out of mtools-pre4-3.9.2) ICEs with -O2:
  > 
  > typedef struct SimpleFile_t {
  > 	int scsi_sector_size;
  > } SimpleFile_t;
  > 
  > int scsi_io(unsigned int len)
  > {
  > 	unsigned int nsect;
  > 	SimpleFile_t  *This;
  > 	
  > 	while (nsect*This->scsi_sector_size>len)
  > 	  --nsect;
  > }
  > 
  > [root@sleipnir /tmp]# gcc -O2 -c plain_io.c
  > ../../egcs-19990228/gcc/rtlanal.c:961: Internal compiler error in function
  > reg_overlap_mentioned_p
I just tried this with the current sources and it seems to be working fine.

jeff