For libmpx the reason is that MPX ISA doesn't support x32. I.e. MPX
instructions can't use 32bit bounds in 64bit mode.
Ilya
2015-11-18 9:34 GMT+03:00 Ulrich Drepper :
> Is there a reason why libmpx and libgccjit aren't build for x32? This
> is in the case when building IA-32, x86-64, and x32 all
Hi,
The x86-64 psABI has been updated to revision 248. Main changes are
1. Support Intel MPX.
2. Add a chapter for linker optimization.
3. Add 2 new relocations, R_X86_64_GOTPCRELX and R_X86_64_REX_GOTPCRELX.
MPX supported has been checked into GCC 5 and ld in binutils 2.25.
Linker optimization
On 11/17/2015 03:07 PM, Andrew Pinski wrote:
On Wed, Nov 18, 2015 at 5:31 AM, Jeff Law wrote:
On 11/16/2015 10:55 PM, David Wohlferd wrote:
- There is no standard that says it must do this.
True. But these after all are extensions and extensions have been
notoriously under-documented thro
On 11/17/2015 06:28 PM, Segher Boessenkool wrote:
_Does_ basic asm as currently implemented have a memory clobber? If not,
it seems we can just remove basic asm completely and everything would
still work the same!
You'd have to dig into the various optimizers -- I know that it has a
memory use
Snapshot gcc-4.9-20151118 is now available on
ftp://gcc.gnu.org/pub/gcc/snapshots/4.9-20151118/
and on various mirrors, see http://gcc.gnu.org/mirrors.html for details.
This snapshot has been generated from the GCC 4.9 SVN branch
with the following options: svn://gcc.gnu.org/svn/gcc/branches
