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From: "patrick.marlier at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug c++/45940] [trans-mem] Error of unsafe function even if annotated
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D45940

--- Comment #6 from Patrick Marlier <patrick.marlier at gmail dot com> 2010=
-11-25 09:57:32 UTC ---
Created attachment 22526
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=3D22526
another testcase

It seems not completely solved.

Here a another testcase.

With -O0, it complains about unsafe function even if annotated as
transaction_pure.

gcc -Wall -c -O0 -fgnu-tm unsafe.cpp -o unsafe
unsafe.cpp:38:54: error: unsafe function call =E2=80=98int
atomic_exchange_and_add(int*, int)=E2=80=99 within =E2=80=98transaction_saf=
e=E2=80=99 function

With -O1, ICE in expand_block_tm().

gcc -Wall -c -O1 -fgnu-tm unsafe.cpp -o unsafe
unsafe.cpp: In function =E2=80=98int main()=E2=80=99:
unsafe.cpp:73:5: internal compiler error: in expand_block_tm, at
trans-mem.c:2254
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.

Vincent, please reopen the bug and in the bug description set version to
"trans-mem" (easier to find it).

Patrick Marlier.