[Bug target/55390] New: [4.8 Regression] Error when building with -mfpmath=sse

[d.g.gorbachev at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55390



             Bug #: 55390

           Summary: [4.8 Regression] Error when building with -mfpmath=sse

    Classification: Unclassified

           Product: gcc

           Version: 4.8.0

            Status: UNCONFIRMED

          Severity: normal

          Priority: P3

         Component: target

        AssignedTo: unassig...@gcc.gnu.org

        ReportedBy: d.g.gorbac...@gmail.com





If I build GCC having -march=pentium4 -mfpmath=sse in CFLAGS_FOR_TARGET, it

fails with the following error:



../../../gcc-4.8/libatomic/load_n.c:1:0: error: SSE instruction set disabled,

using 387 arithmetics [-Werror]



because -march=i586 appended in the makefile. It should also add -mfpmath=387

then.