http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48031
Summary: [4,4, 4.5 regression] gcc.c-torture/compile/pr42956.c
ICEs gcc on m68k-linux, ivopts related?
Product: gcc
Version: 4.5.2
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
AssignedTo: unassig...@gcc.gnu.org
ReportedBy: mi...@it.uu.se
The pr42956.c test case ICEs gcc 4.5 and 4.4 on m68k-linux:
> gcc/xgcc -Bgcc -O1 -S /.../gcc/testsuite/gcc.c-torture/compile/pr42956.c
/.../gcc/testsuite/gcc.c-torture/compile/pr42956.c: In function 'Split':
/.../gcc/testsuite/gcc.c-torture/compile/pr42956.c:10:6: error: expected an
SSA_NAME object
/.../gcc/testsuite/gcc.c-torture/compile/pr42956.c:10:6: error: in statement
D.2041_132 = D.1987 /[ex] 2;
/.../gcc/testsuite/gcc.c-torture/compile/pr42956.c:10:6: internal compiler
error: verify_ssa failed
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
This is with a cross to m68k-linux and --enable-checking=yes, with
--enable-checking=release the compiler segfaults instead.
Compiling with -O1 -fno-ivopts or -O0 eliminates the ICE.
This bug occurs with gcc-4.4.5 and gcc-4.5.2. It does not occur with
gcc-4.3.5. For gcc-4.6 it stopped occurring after the big MEM_REF update in
r161655.
