diff options
| author | marxin <marxin@138bc75d-0d04-0410-961f-82ee72b054a4> | 2018-02-20 10:04:13 +0000 |
|---|---|---|
| committer | marxin <marxin@138bc75d-0d04-0410-961f-82ee72b054a4> | 2018-02-20 10:04:13 +0000 |
| commit | 42b1063146566519fef7a8589e3fd82b7240ae0f (patch) | |
| tree | e8b704768df9cda9cb173b4b741372e31194f039 /gcc/doc/invoke.texi | |
| parent | 120a74e2ef9721677aa6858cd08c67a5cfefc8a9 (diff) | |
Add limit for maximal alignment options (PR c/84310).
2018-02-20 Martin Liska <mliska@suse.cz>
PR c/84310
PR target/79747
* final.c (shorten_branches): Build align_tab array with one
more element.
* opts.c (finish_options): Add alignment option limit check.
(MAX_CODE_ALIGN): Likewise.
(MAX_CODE_ALIGN_VALUE): Likewise.
* doc/invoke.texi: Document maximum allowed option value for
all -falign-* options.
2018-02-20 Martin Liska <mliska@suse.cz>
PR c/84310
PR target/79747
* gcc.target/i386/pr84310.c: New test.
* gcc.target/i386/pr84310-2.c: Likewise.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@257842 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/doc/invoke.texi')
| -rw-r--r-- | gcc/doc/invoke.texi | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi index a580794bfba1..973d77d47bfb 100644 --- a/gcc/doc/invoke.texi +++ b/gcc/doc/invoke.texi @@ -9159,6 +9159,7 @@ Some assemblers only support this flag when @var{n} is a power of two; in that case, it is rounded up. If @var{n} is not specified or is zero, use a machine-dependent default. +The maximum allowed @var{n} option value is 65536. Enabled at levels @option{-O2}, @option{-O3}. @@ -9184,6 +9185,7 @@ are greater than this value, then their values are used instead. If @var{n} is not specified or is zero, use a machine-dependent default which is very likely to be @samp{1}, meaning no alignment. +The maximum allowed @var{n} option value is 65536. Enabled at levels @option{-O2}, @option{-O3}. @@ -9197,6 +9199,7 @@ operations. @option{-fno-align-loops} and @option{-falign-loops=1} are equivalent and mean that loops are not aligned. +The maximum allowed @var{n} option value is 65536. If @var{n} is not specified or is zero, use a machine-dependent default. @@ -9214,6 +9217,7 @@ need be executed. equivalent and mean that loops are not aligned. If @var{n} is not specified or is zero, use a machine-dependent default. +The maximum allowed @var{n} option value is 65536. Enabled at levels @option{-O2}, @option{-O3}. |