diff options
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 3 | ||||
| -rw-r--r-- | gcc/unroll.c | 13 |
2 files changed, 15 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 025b4e8..062716d 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,5 +1,8 @@ 2002-02-27 Graham Stott <grahams@redhat.com> + * unroll.c (loop_iterations): Return 0 if the add_val for + a BIV is REG. + * final.c (output_operand_lossage): Constify PFX_STR. * df.c (df_insn_refs_record): Use XEXP (x, 0) for USE. diff --git a/gcc/unroll.c b/gcc/unroll.c index 9a0cfcf..2b94147 100644 --- a/gcc/unroll.c +++ b/gcc/unroll.c @@ -3744,7 +3744,18 @@ loop_iterations (loop) for (biv_inc = bl->biv; biv_inc; biv_inc = biv_inc->next_iv) { if (loop_insn_first_p (v->insn, biv_inc->insn)) - offset -= INTVAL (biv_inc->add_val); + { + if (REG_P (biv_inc->add_val)) + { + if (loop_dump_stream) + fprintf (loop_dump_stream, + "Loop iterations: Basic induction var add_val is REG %d.\n", + REGNO (biv_inc->add_val)); + return 0; + } + + offset -= INTVAL (biv_inc->add_val); + } } } if (loop_dump_stream) |