https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93552
Tobias Burnus <burnus at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |openacc
CC| |burnus at gcc dot gnu.org
Summary|[8/9/10 Regression] ICE in |[8/9/10
|gfc_trans_exit, at |Regression][OpenACC] ICE in
|fortran/trans-stmt.c:6110 |gfc_trans_exit, at
|since |fortran/trans-stmt.c:6110
|r7-6598-g02889d23ee3b0285 |since
| |r7-6598-g02889d23ee3b0285
--- Comment #2 from Tobias Burnus <burnus at gcc dot gnu.org> ---
If one places the "exit" into the outer loop (or jumps via label to the
outermost loop), the compiler complains:
Error: EXIT statement at (1) terminating !$ACC LOOP loop
As PR 93825 shows, the current code gen in trans-openmp.c's gfc_trans_omp_do
creates a pragma, then a bunch of "for" loops and then translates the code of
the innermost for loop.
For "collapse" any attempt of doing "cycle" to any but the innermost loop – or
any "exit" is rejected.
For "tile", the code handling is the same but "cycle" to outer loops or "exit"
(except exit with label to the outermost loop) is accepted – but then gives an
ICE.
The question is whether "exit" / non-innermost-"cycle" is permitted according
to the OpenACC spec with the "tile" clause. If so, the whole code in
gfc_trans_omp_do needs to be restructured.
