------- Comment #5 from victork at gcc dot gnu dot org 2008-03-20 09:42 ------- I see same failures using compiler boostrapped with vectorization enabled using BOOT_CFLAGS="-g -O2 -ftree-vectorize -maltivec -mabi=altivec"
Tests fail because some loops were not vectorized: home/victork/mainline/gcc/gcc/testsuite/gcc.dg/vect/vect-vfa-03.c:26: note: vect_is_simple_use: operand 2 /home/victork/mainline/gcc/gcc/testsuite/gcc.dg/vect/vect-vfa-03.c:26: note: op not supported by target. /home/victork/mainline/gcc/gcc/testsuite/gcc.dg/vect/vect-vfa-03.c:26: note: vect_is_simple_use: operand D.2114_11 * 2 /home/victork/mainline/gcc/gcc/testsuite/gcc.dg/vect/vect-vfa-03.c:26: note: not ssa-name. /home/victork/mainline/gcc/gcc/testsuite/gcc.dg/vect/vect-vfa-03.c:26: note: use not simple. /home/victork/mainline/gcc/gcc/testsuite/gcc.dg/vect/vect-vfa-03.c:26: note: not vectorized: relevant stmt not supported: D.2115_12 = D.2114_11 * 2 /home/victork/mainline/gcc/gcc/testsuite/gcc.dg/vect/vect-vfa-03.c:26: note: bad operation or unsupported loop bound. /home/victork/mainline/gcc/gcc/testsuite/gcc.dg/vect/vect-vfa-03.c:23: note: vectorized 0 loops in function. In above case vect_is_simple_use() has a problem with constant operand, which is very strange. Looks like a memory overwrite. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35642
