[LLVMbugs] [Bug 7143] error: SSE register return with SSE disabled (with -mno-mmx)

bugzilla-daemon at llvm.org bugzilla-daemon at llvm.org
Sun May 16 11:28:59 PDT 2010


Dale Johannesen <dalej at apple.com> changed:

           What    |Removed                     |Added
             Status|RESOLVED                    |REOPENED
                 CC|                            |dalej at apple.com
          Component|new bugs                    |-New Bugs
         Resolution|DUPLICATE                   |
         AssignedTo|unassignedbugs at nondot.org   |unassignedclangbugs at nondot.
                   |                            |org
            Product|new-bugs                    |clang

--- Comment #2 from Dale Johannesen <dalej at apple.com> 2010-05-16 13:28:58 CDT ---
7135 is really about a crash with -mno-sse, a different bug.  The fact that
-mno-mmx is handled differently by clang than by gcc is a clang bug.  -mno-mmx
should not turn on -mno-sse.  (It is a not a description of what hardware is
available, but an instruction to the compiler.)

As for the error, the calling convention in that environment uses SSE (I
think), so it's reasonable to give an error if that is not available, IMO.  I'm
not sure of the details of the environment though.

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