diff options
Diffstat (limited to 'gcc/doc')
| -rw-r--r-- | gcc/doc/tm.texi | 20 |
1 files changed, 14 insertions, 6 deletions
diff --git a/gcc/doc/tm.texi b/gcc/doc/tm.texi index 8f567dbda8f..80e8e75209d 100644 --- a/gcc/doc/tm.texi +++ b/gcc/doc/tm.texi @@ -7226,10 +7226,10 @@ the target supports DWARF 2 frame unwind information. This describes commands for alignment. @table @code -@findex LABEL_ALIGN_AFTER_BARRIER -@item LABEL_ALIGN_AFTER_BARRIER (@var{label}) -The alignment (log base 2) to put in front of @var{label}, which follows -a @code{BARRIER}. +@findex JUMP_ALIGN +@item JUMP_ALIGN (@var{label}) +The alignment (log base 2) to put in front of @var{label}, which is +a common destination of jumps and has no fallthru incomming edge. This macro need not be defined if you don't want any special alignment to be done at such a time. Most machine descriptions do not currently @@ -7238,8 +7238,16 @@ define the macro. Unless it's necessary to inspect the @var{label} parameter, it is better to set the variable @var{align_jumps} in the target's @code{OVERRIDE_OPTIONS}. Otherwise, you should try to honour the user's -selection in @var{align_jumps} in a @code{LABEL_ALIGN_AFTER_BARRIER} -implementation. +selection in @var{align_jumps} in a @code{JUMP_ALIGN} implementation. + +@findex LABEL_ALIGN_AFTER_BARRIER +@item LABEL_ALIGN_AFTER_BARRIER (@var{label}) +The alignment (log base 2) to put in front of @var{label}, which follows +a @code{BARRIER}. + +This macro need not be defined if you don't want any special alignment +to be done at such a time. Most machine descriptions do not currently +define the macro. @findex LABEL_ALIGN_AFTER_BARRIER_MAX_SKIP @item LABEL_ALIGN_AFTER_BARRIER_MAX_SKIP |