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| author | Jim Wilson <wilson@gcc.gnu.org> | 1996-10-22 15:31:18 -0700 |
|---|---|---|
| committer | Jim Wilson <wilson@gcc.gnu.org> | 1996-10-22 15:31:18 -0700 |
| commit | d1b9c52c2f9ac1fd43e44a42c179ad503d281cce (patch) | |
| tree | fb5f68343a5ec71496748bf5e418721ba897dc12 /gcc | |
| parent | c9f99b6a232ac41d3ea3270e2886bc9552d2d9a4 (diff) | |
| download | gcc-d1b9c52c2f9ac1fd43e44a42c179ad503d281cce.zip gcc-d1b9c52c2f9ac1fd43e44a42c179ad503d281cce.tar.gz gcc-d1b9c52c2f9ac1fd43e44a42c179ad503d281cce.tar.bz2 | |
(unroll_loop): Always reject loops with unbalanced blocks.
From-SVN: r12999
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/unroll.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/gcc/unroll.c b/gcc/unroll.c index b720074..f5e3675 100644 --- a/gcc/unroll.c +++ b/gcc/unroll.c @@ -268,8 +268,12 @@ unroll_loop (loop_end, insn_count, loop_start, end_insert_before, of block_beg and block_end notes, because that would unbalance the block structure of the function. This can happen as a result of the "if (foo) bar; else break;" optimization in jump.c. */ + /* ??? Gcc has a general policy that -g is never supposed to change the code + that the compiler emits, so we must disable this optimization always, + even if debug info is not being output. This is rare, so this should + not be a significant performance problem. */ - if (write_symbols != NO_DEBUG) + if (1 /* write_symbols != NO_DEBUG */) { int block_begins = 0; int block_ends = 0; |