Program: nbench-byte-2.2.2.tar.gz Command (ripped from the Makefile): # The used compiler CC = /opt/gcc-4.1-20050618/bin/gcc # The used options for the compiler CFLAGS = -s -static -Wall -O3 -fomit-frame-pointer Error Message: nbench0.c: In function 'main': nbench0.c:66: internal compiler error: in tree_verify_flow_info, at tree-cfg.c:3716 Please submit a full bug report, with preprocessed source if appropriate. See <URL:http://gcc.gnu.org/bugs.html> for instructions. make: *** [nbench0.o] Error 1 Preprocessed source: Nope (nbench0.i > 100K) Other GCC snapshots: gcc-4.1-20050604 and gcc-4.1-20050611 work fine. Other remarks: If I add the option -fno-inline-functions the compilation finishes successfully with gcc-4.1-20050618 => It seems to me that the tree-inliner is a candidate for the bug hunt.
Should be fixed already by: 2005-06-20 Jan Hubicka <jh@suse.cz> * cfgloop.h (DLTHE_RECORD_COPY_NUMBER): New flag. * cfgloopmanip.c (duplicate_loop_to_header_edge): Set aux flags only when asked for. * loop-unroll.c (peel_loop_completely, unroll_loop_constant_iterations, unroll_loop_runtime_iterations, peel_loop_simple, unroll_loop_stupid): Update call of duplicate_loop_to_header_edge. (apply_opt_in_copies): Clear out aux pointers. Can you try a CVS or attach the preprocessed source?
Fixed.