* What's the meaing of "Incorrect sharing of tree nodes"?
@ 2008-03-04 23:02 Haifeng He
0 siblings, 0 replies; only message in thread
From: Haifeng He @ 2008-03-04 23:02 UTC (permalink / raw)
To: gcc-help
Hi, all
I wrote a pass that will instrument some instructions in the given
program. However,
the pass failed to pass "TODO_verify_stmts". The error message said
"incorrect sharing of tree nodes".
What's the meaning of this error message? If I just ignore
"TODO_verify_stmts", it seems the instrumented program can still run.
Can anybody give me some idea about the error?
Thanks
Haifeng
---------------------------------------------------------------
The particular failed test program is like the following:
Original gimple code:
D.2582 = l->next
Instrumented code
+D.2585 = l->next
+D.2586 = (int) D.2585
D.2582 = l->next
+_my_call(D.2586)
The error message is:
error: incorrect sharing of tree nodes
D.2582 = lD.2580->nextD.2569
lD.2580->nextD.2569
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2008-03-04 23:02 What's the meaing of "Incorrect sharing of tree nodes"? Haifeng He
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