break_dependency incorrectly handles the case of dependency on an opcode
that references the same register multiple times. E.g. the following
instruction is translated incorrectly:
{ or a2, a3, a3 ; or a3, a2, a2 }
This happens because resource indices of both dependency graph nodes are
incremented, and a copy for the second instance of the same register in
the ending node is not done.
Only increment resource index of the ending node of the dependency.
Add test.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
copy[n].resource = b->in[j].resource;
copy[n].arg = b->arg + index;
++n;
- ++i;
++j;
rv = true;
}
.previous
test_end
+test rep_dependency
+
+ {
+ movi a2, 1
+ movi a3, 2
+ nop
+ }
+ {
+ or a2, a3, a3
+ or a3, a2, a2
+ nop
+ }
+ assert eqi, a2, 2
+ assert eqi, a3, 1
+
+test_end
+
#endif
test_suite_end