Hi, When I compile "libavcodec/dsputil.c" file from FFmpeg package with these options (-O2 -fipa-cp-clone -finline-functions -fgcse-after-reload -ftree-vectorize -fpredictive-commoning -funswitch-loops):
OPTFLAGS= -mnobitfield -m68060 -std=c99 -Wdeclaration-after-statement -Wdisabled-optimization -fno-math-errno -D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112 -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -fno-common -fomit-frame-pointer -Wall -Wno-switch -Wpointer-arith -Wredundant-decls -Wcast-qual -Wwrite-strings -Wundef -O2 -fipa-cp-clone -finline-functions -fgcse-after-reload -ftree-vectorize -fpredictive-commoning -funswitch-loops I get "dsputil.o" with size of 306kb. When I compile "dsputil.c" with -O3 option: OPTFLAGS= -mnobitfield -m68060 -std=c99 -Wdeclaration-after-statement -Wdisabled-optimization -fno-math-errno -D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112 -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -fno-common -fomit-frame-pointer -Wall -Wno-switch -Wpointer-arith -Wredundant-decls -Wcast-qual -Wwrite-strings -Wundef -O3 I get "dsputil.o" with size of 1,18mb. -- Summary: 4x bigger object when compiled with -O3 option Product: gcc Version: 4.4.1 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: ami_stuff at o2 dot pl GCC host triplet: i686-cygwin GCC target triplet: m68k-amigaos http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41095