diff options
Diffstat (limited to 'gcc/unroll.c')
| -rw-r--r-- | gcc/unroll.c | 21 |
1 files changed, 8 insertions, 13 deletions
diff --git a/gcc/unroll.c b/gcc/unroll.c index ce6623c37cd..b9cbcfe6a48 100644 --- a/gcc/unroll.c +++ b/gcc/unroll.c @@ -1094,16 +1094,13 @@ unroll_loop (loop_end, insn_count, loop_start, end_insert_before, /* Set unroll type to MODULO now. */ unroll_type = UNROLL_MODULO; loop_preconditioned = 1; + #ifdef HAIFA - if (loop_n_iterations > 0) - loop_unroll_iter[ loop_number(loop_start, loop_end) ] - = (loop_n_iterations - - loop_n_iterations % (abs_inc * unroll_number)); - else - /* inform loop.c about the new initial value */ - loop_start_value[loop_number(loop_start, loop_end)] = initial_value; + /* Fix the initial value for the loop as needed. */ + if (loop_n_iterations <= 0) + loop_start_value [loop_number (loop_start, loop_end)] + = initial_value; #endif - } } @@ -1118,13 +1115,11 @@ unroll_loop (loop_end, insn_count, loop_start, end_insert_before, /* At this point, we are guaranteed to unroll the loop. */ -#ifdef HAIFA - /* inform loop.c about the factor of unrolling */ + /* Keep track of the unroll factor for each loop. */ if (unroll_type == UNROLL_COMPLETELY) - loop_unroll_factor[ loop_number(loop_start, loop_end) ] = -1; + loop_unroll_factor [loop_number (loop_start, loop_end)] = -1; else - loop_unroll_factor[ loop_number(loop_start, loop_end) ] = unroll_number; -#endif /* HAIFA */ + loop_unroll_factor [loop_number (loop_start, loop_end)] = unroll_number; /* For each biv and giv, determine whether it can be safely split into |