[Bug target/40836] ICE: "insn does not satisfy its constraints" (iwmmxt_movsi_insn)

[rearnsha at gcc dot gnu dot org]

------- Comment #14 from rearnsha at gcc dot gnu dot org  2009-11-16 17:35 -------
This is probably a consequence of some changes made to support Thumb-2.   Only
a very limited number of instructions are permitted to modify SP there, and
co-processor operations are not amongst them.

I think the correct way to solve this is to add a secondary reload pattern that
handles moving co-processor regs to STACK_REGS (and vice-versa).


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40836