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| author | Alan Modra <amodra@bigpond.net.au> | 2002-07-20 00:31:15 +0000 |
|---|---|---|
| committer | Alan Modra <amodra@gcc.gnu.org> | 2002-07-20 10:01:15 +0930 |
| commit | 8b583747adc3a9e670930481b828550fdcc18860 (patch) | |
| tree | 94eedd6796f702b3e750b75344a9180da4a76c79 /gcc/unroll.c | |
| parent | 0dc36574afc7846defc8751c3e19e4c994e0de4a (diff) | |
| download | gcc-8b583747adc3a9e670930481b828550fdcc18860.zip gcc-8b583747adc3a9e670930481b828550fdcc18860.tar.gz gcc-8b583747adc3a9e670930481b828550fdcc18860.tar.bz2 | |
re PR rtl-optimization/7130 (miscompiled code for gcc-3.1 on powerpc-unknown-linux-gnu with -funroll-all-loops)
PR optimization/7130
* loop.h (struct loop_info): Add "preconditioned".
* unroll.c (unroll_loop): Set it.
* doloop.c (doloop_modify_runtime): Correct count for unrolled loops.
From-SVN: r55598
Diffstat (limited to 'gcc/unroll.c')
| -rw-r--r-- | gcc/unroll.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/gcc/unroll.c b/gcc/unroll.c index e0b0d36..c8201ed 100644 --- a/gcc/unroll.c +++ b/gcc/unroll.c @@ -1135,6 +1135,9 @@ unroll_loop (loop, insn_count, strength_reduce_p) /* Keep track of the unroll factor for the loop. */ loop_info->unroll_number = unroll_number; + /* And whether the loop has been preconditioned. */ + loop_info->preconditioned = loop_preconditioned; + /* For each biv and giv, determine whether it can be safely split into a different variable for each unrolled copy of the loop body. We precalculate and save this info here, since computing it is |