http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48867
Summary: Using the compilation flag -mfpmath=sse breaks Snes9x build. Product: gcc Version: 4.6.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c++ AssignedTo: unassig...@gcc.gnu.org ReportedBy: j.russell.mo...@gmail.com Created attachment 24179 --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=24179 Compilation output. Adding -mfpmath=sse to the compilation flags when building Snes9x generates the following messages when compiling filters/hq2x.cpp: {standard input}: Assembler messages: {standard input}:59302: Warning: end of file not at end of a line; newline inserted {standard input}:60006: Error: no such instruction: `m' {standard input}:60006: Error: open CFI at the end of file; missing .cfi_endproc directive g++: internal compiler error: Killed (program cc1plus) The system I was using is a 64-bit Archlinux. Compilation flags: -march=core2 -mfpmath=sse -O3 -pipe -fomit-frame-pointer (although the configure script added some more) gcc-v: Using built-in specs. COLLECT_GCC=gcc COLLECT_LTO_WRAPPER=/usr/lib/gcc/x86_64-unknown-linux-gnu/4.6.0/lto-wrapper Target: x86_64-unknown-linux-gnu Configured with: /build/src/gcc-4.6-20110429/configure --prefix=/usr --libdir=/usr/lib --libexecdir=/usr/lib --mandir=/usr/share/man --infodir=/usr/share/info --with-bugurl=https://bugs.archlinux.org/ --enable-languages=c,c++,ada,fortran,go,lto,objc,obj-c++ --enable-shared --enable-threads=posix --with-system-zlib --enable-__cxa_atexit --disable-libunwind-exceptions --enable-clocale=gnu --enable-gnu-unique-object --enable-linker-build-id --with-ppl --enable-cloog-backend=isl --enable-lto --enable-gold --enable-ld=default --enable-plugin --with-plugin-ld=ld.gold --disable-multilib --disable-libstdcxx-pch --enable-checking=release Thread model: posix gcc version 4.6.0 20110429 (prerelease) (GCC) Compilation output: http://pastebin.com/TjqtN8sS I've left the preprocessed files (the one that triggers the bug should be hq2x.ii) along with the sources I used here: http://dl.dropbox.com/u/2431380/snes9x-1.53-src.tar.xz They're in the "unix" directory, that's where the makefile is too.