[Bug c/37807] New: Exponential compile time with MMX builtins.

[suckfish at ihug dot co dot nz]

Using MMX bultins in a sizeable but not extreme function leads to exponential
compile time.

Attached code will take an excessive compile time [I think hours].

Similar code using SSE compiles quickly for me.

$ gcc --version
gcc (GCC) 4.3.2 20081007 (Red Hat 4.3.2-6)
Copyright (C) 2008 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.


-- 
           Summary: Exponential compile time with MMX builtins.
           Product: gcc
           Version: 4.3.2
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: suckfish at ihug dot co dot nz
 GCC build triplet: x86-64
  GCC host triplet: x86-64
GCC target triplet: x86-64


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37807