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| author | Jeff Law <law@gcc.gnu.org> | 1997-09-21 19:49:19 -0600 |
|---|---|---|
| committer | Jeff Law <law@gcc.gnu.org> | 1997-09-21 19:49:19 -0600 |
| commit | 237a9795cb8eee2296d0e777bc2dffa4cdafefa6 (patch) | |
| tree | 90446704bc98bcf3a8a28c6f81912cdac9a90ddf /gcc/unroll.c | |
| parent | 813f674a97a75338b497442d3529b89fcd37b917 (diff) | |
| download | gcc-237a9795cb8eee2296d0e777bc2dffa4cdafefa6.zip gcc-237a9795cb8eee2296d0e777bc2dffa4cdafefa6.tar.gz gcc-237a9795cb8eee2296d0e777bc2dffa4cdafefa6.tar.bz2 | |
loop.c (loop_unroll_factor): Move outside #ifdef HAIFA conditional.
* loop.c (loop_unroll_factor): Move outside #ifdef HAIFA
conditional.
(loop_unroll_iter): Remove unused variable and all references.
(loop_optimize): Always allocate and clear space for loop_unroll_factor.
(insert_bct): Fix minor formatting problems.
* loop.h (loop_unroll_factor): Move decl outside #ifdef HAIFA.
(loop_unroll_iter): Removed unused decl.
* unroll.c (unroll_loop): Remove code to set loop_unroll_iter.
Always record the unrolling factor.
More haifa cleanup
From-SVN: r15621
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 ce6623c..b9cbcfe 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 |