[Bug target/34174] gcc produces erroneous asm for movdi

[rask at gcc dot gnu dot org]

------- Comment #10 from rask at gcc dot gnu dot org  2007-11-23 01:33 -------
I think both branches of "if (reverse)" could use the exact same code, i.e.
this whole reverse/!reverse idea is bogus on fr30. Suppose our output registers
are r1 and r2 and we receive the address in rN. Then, for any N, this
instruction sequence should work:
...
mov  rN,  r2
ld   @rN, r1
addn 4,   r2
ld   @r2, r2
...
I found an fr30 simulator in GDB 5.2, so I'm testing the patch for GCC 4.3.
Because this bug is not a regression, it might not be fixed in GCC 4.2.x.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34174