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

["yipiha2008 at gmail dot com" <gcc-bugzilla at gcc dot gnu dot org>]

------- Comment #22 from yipiha2008 at gmail dot com  2009-11-19 16:47 -------
I tried applying this patch:


 (define_insn "*iwmmxt_movsi_insn"
-  [(set (match_operand:SI 0 "nonimmediate_operand" "=rk,r,r,rk,
m,z,r,?z,Uy,z")
+  [(set (match_operand:SI 0 "nonimmediate_operand" "=rk,r,r,rk,
m,z,rk,?z,Uy,z")
        (match_operand:SI 1 "general_operand"      "rk, I,K,mi,rk,r,z,Uy,z,
z"))]
   "TARGET_REALLY_IWMMXT
    && (   register_operand (operands[0], SImode)


I really have no clue as to whether it is correct or not.

I rely on the assembler to crash with an error in the event this generates an
invalid instruction. So far I compiled a lot of stuff with this patch applied,
and I got no ICE. However it's likely that the generated code is incorrect
somehow and my code will crash (SIGILL?) when executed. I will test this in a
few hours.

Any other idea? Maybe we could contact the people who originally wrote the
iwmmxt.md file, they might be able to help.


-- 


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