[Bug bootstrap/42157] [4.5 regression] ICE building stage 1 libgcc on IRIX 5.3: SEGV in compare_access_positions

[jamborm at gcc dot gnu dot org]

------- Comment #1 from jamborm at gcc dot gnu dot org  2009-11-24 18:16 -------
Can you please add a check before the qsort call (tree-sra.c, line
1407) whether all pointers in the access_vec seem OK or whether it is
SRA that passes the invalid pointer to qsort?  Nothing fancy,
something as stupid as the loop below should do:

for (i =0; i < access_count; i++)
  gcc_assert (((unsigned) VEC_index (access_p, access_vec, i)) > 0x1000);

If it passes I can't see any other explanation but a bad qsort.  If it
doesn't we'll need to figure out how the bad pointers get there.

I don't have access to the architecture so I can't try it myself.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42157