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| author | Caroline Tice <ctice@apple.com> | 2004-08-25 19:52:54 +0000 |
|---|---|---|
| committer | Caroline Tice <ctice@gcc.gnu.org> | 2004-08-25 12:52:54 -0700 |
| commit | 8e8d51622f9c4aca782074532ee563f4c70f2e2f (patch) | |
| tree | a5867d1e566bb25285998220b8ed1c4261740f02 /gcc/cfglayout.c | |
| parent | 41a21e1d8b4bf5ed02dd953d8059c6c311f89edf (diff) | |
| download | gcc-8e8d51622f9c4aca782074532ee563f4c70f2e2f.tar.gz | |
Add more details to hot/cold partitioning comments and documentation.
2004-08-25 Caroline Tice <ctice@apple.com>
* bb-reorder.c (partition_hot_cold_basic_blocks): Add more details
to comments at start of function.
* cfgbuild.c (make_edges): Add more details to hot/cold partitioning
comment.
* cfgcleanup.c (try_simplify_condjump, try_forward_edges,
merge_blocks_move_predecessor_nojumps,
merge_blocks_move_successor_nojumps, merge_blocks_move,
try_crossjump_to_edge, try_crossjump_bb): Likewise.
* cfglayout.c (fixup_reorder_chain): Likewise.
* cfgrtl.c (rtl_can_merge_blocks, try_redirect_by_replacing_jump,
cfg_layout_can_merge_blocks_p): Likewise.
* ifcvt.c (find_if_case_1, find_if_case_2): Likewise.
* passes.c (rest_of_compilation): Update comments for calling
optimization that partitions hot/cold basic blocks.
* doc/invoke.texi: Update documentation of
freorder-blocks-and-partition flag.
From-SVN: r86570
Diffstat (limited to 'gcc/cfglayout.c')
| -rw-r--r-- | gcc/cfglayout.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/gcc/cfglayout.c b/gcc/cfglayout.c index 397180633bc..994ab45c491 100644 --- a/gcc/cfglayout.c +++ b/gcc/cfglayout.c @@ -794,7 +794,8 @@ fixup_reorder_chain (void) bb = nb; /* Make sure new bb is tagged for correct section (same as - fall-thru source). */ + fall-thru source, since you cannot fall-throu across + section boundaries). */ BB_COPY_PARTITION (e_fall->src, bb->pred->src); if (flag_reorder_blocks_and_partition && targetm.have_named_sections) |