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[Bug middle-end/51071] [4.7 Regression] ICE in gimple_has_side_effects, at gimple.c:2513
- From: "pageexec at freemail dot hu" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Mon, 21 May 2012 11:41:10 +0000
- Subject: [Bug middle-end/51071] [4.7 Regression] ICE in gimple_has_side_effects, at gimple.c:2513
- Auto-submitted: auto-generated
- References: <bug-51071-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51071
--- Comment #6 from pageexec at freemail dot hu 2012-05-21 11:41:10 UTC ---
Created attachment 27458
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=27458
test case for gcc 4.6.x
this is a compressed test case (would be too big to attach otherwise i think).
compile with:
gcc -c netdev.i -o netdev.o -O2 -fno-delete-null-pointer-checks
(the -fno-delete-null-pointer-checks switch is important). you'll also need a
debug build of gcc (i had
--enable-checking=assert,misc,rtl,rtlflag,runtime,tree here) and the error i
get is:
drivers/staging/sbe-2t3e3/netdev.c: In function 't3e3_open':
drivers/staging/sbe-2t3e3/netdev.c:85:5: internal compiler error: in
gimple_has_side_effects, at gimple.c:2329
with the code around gimple.c:2329 being:
2324 for (i = 0; i < gimple_num_ops (s); i++)
2325 ÂÂÂÂÂÂÂÂ{
2326 ÂÂÂÂÂÂÂÂ tree op = gimple_op (s, i);
2327 ÂÂÂÂÂÂÂÂ if (op && TREE_SIDE_EFFECTS (op))
2328 ÂÂÂÂÂÂÂÂ {
2329 ÂÂÂÂÂÂÂÂ gcc_checking_assert (gimple_has_volatile_ops (s));
2330 ÂÂÂÂÂÂÂÂ return true;
2331 ÂÂÂÂÂÂÂÂ }
2332 ÂÂÂÂÂÂÂÂ}