On 2010-09-29 17:48, Renato Botelho wrote:
0.      Program arguments: /usr/bin/clang -cc1 -triple
x86_64-undermydesk-freebsd9.0 -S -disable-free -main-file-name ldexp.c
-mrelocation-model static -mdisable-fp-elim -mconstructor-aliases
-munwind-tables -target-cpu x86-64 -resource-dir /usr/lib/clang/2.8 -D
NLS -D __DBINTERFACE_PRIVATE -D INET6 -D _ACL_PRIVATE -D POSIX_MISTAKE
-D BROKEN_DES -D PORTMAP -D DES_BUILTIN -D YP -D NS_CACHING -D
SYMBOL_VERSIONING -I /usr/src/lib/libc/include -I
/usr/src/lib/libc/../../include -I /usr/src/lib/libc/amd64 -I
/usr/src/lib/libc/../../contrib/gdtoa -I /usr/obj/usr/src/lib/libc -I
/usr/src/lib/libc/resolv -I
/usr/src/lib/libc/../../contrib/tzcode/stdtime -I
/usr/src/lib/libc/stdtime -I /usr/src/lib/libc/locale -I
/usr/src/lib/libc/rpc -O0 -Wsystem-headers -Wall -Wno-format-y2k
-Wno-uninitialized -Wno-pointer-sign -std=gnu99 -ferror-limit 19
-fmessage-length 105 -stack-protector 1 -fgnu-runtime
-fdiagnostics-show-option -fcolor-diagnostics -o /tmp/cc-8DfzyK.s -x c
/usr/src/lib/libc/amd64/gen/ldexp.c
1.<eof>  parser at end of file
2.      Code generation
3.      Running pass 'X86 FP Stackifier' on function '@ldexp'
...
Removing -O0 from CFLAGS it builds fine. Am I doing something
wrong?

No, but unfortunately ldexp.c is well-known problem case for clang's
inline assembly support.  Its handling of floating point arguments is
rather fragile, and sometimes breaks, as you can see here.  For now,
only use the standard settings to compile it. :)
_______________________________________________
freebsd-current@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-current
To unsubscribe, send any mail to "freebsd-current-unsubscr...@freebsd.org"

Reply via email to