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| author |   jsg <jsg@openbsd.org> | 2011-09-21 21:26:04 +0000 |
|---|---|---|
| committer | jsg <jsg@openbsd.org> | 2011-09-21 21:26:04 +0000 |
| commit | 763deaeafbf1605b8280349754d266df7aa7916f (patch) | |
| tree | 380c28c0f699e9007f295b7af3bd74544be1cd4a | |
| parent | fix missing err.h includes (diff) | |
| download | wireguard-openbsd-763deaeafbf1605b8280349754d266df7aa7916f.tar.xz wireguard-openbsd-763deaeafbf1605b8280349754d266df7aa7916f.zip | |
add a note about -ftree-vrp being removed from -O2
as it is known to be broken in 4.2.1
prompted by a discussion about other gcc bugs...
| -rw-r--r-- | share/man/man1/gcc-local.1 | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/share/man/man1/gcc-local.1 b/share/man/man1/gcc-local.1 index 72f9c82857f..c3004bbdeb8 100644 --- a/share/man/man1/gcc-local.1 +++ b/share/man/man1/gcc-local.1 @@ -1,4 +1,4 @@ -.\" $OpenBSD: gcc-local.1,v 1.24 2011/07/25 19:24:03 tedu Exp $ +.\" $OpenBSD: gcc-local.1,v 1.25 2011/09/21 21:26:04 jsg Exp $ .\" .\" Copyright (c) 2002 Marc Espie .\" Copyright (c) 2003 Anil Madhavapeddy @@ -25,7 +25,7 @@ .\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF .\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. .\" -.Dd $Mdocdate: July 25 2011 $ +.Dd $Mdocdate: September 21 2011 $ .Dt GCC-LOCAL 1 .Os .Sh NAME @@ -89,6 +89,13 @@ as this option causes issues on some legacy code. can cause surprising optimizations to occur, possibly deleting security critical overflow checks. .It +The +.Fl ftree-vrp +optimization is not included in the +.Fl O2 +option as it is known to be broken in +.Nm gcc 4.2.1 . +.It The option .Fl fno-builtin-<function> was backported from |