summaryrefslogtreecommitdiff
path: root/gas/doc/c-i386.texi
diff options
context:
space:
mode:
Diffstat (limited to 'gas/doc/c-i386.texi')
-rw-r--r--gas/doc/c-i386.texi11
1 files changed, 11 insertions, 0 deletions
diff --git a/gas/doc/c-i386.texi b/gas/doc/c-i386.texi
index 74296e61f69..08f139cc150 100644
--- a/gas/doc/c-i386.texi
+++ b/gas/doc/c-i386.texi
@@ -449,6 +449,17 @@ This option specifies the maximum number of prefixes on an instruction
to align branches. @var{NUM} should be between 0 and 5. The default
@var{NUM} is 5.
+@cindex @samp{-mbranches-within-32B-boundaries} option, i386
+@cindex @samp{-mbranches-within-32B-boundaries} option, x86-64
+@item -mbranches-within-32B-boundaries
+This option aligns conditional jumps, fused conditional jumps and
+unconditional jumps within 32 byte boundary with up to 5 segment prefixes
+on an instruction. It is equivalent to
+@option{-malign-branch-boundary=32}
+@option{-malign-branch=jcc+fused+jmp}
+@option{-malign-branch-prefix-size=5}.
+The default doesn't align branches.
+
@cindex @samp{-mx86-used-note=} option, i386
@cindex @samp{-mx86-used-note=} option, x86-64
@item -mx86-used-note=@var{no}