git
/
gcc
mirror of git://gcc.gnu.org/git/gcc.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

re PR other/66887 (trunk/libmpx/mpxrt/mpxrt.c:158: possible performance problem) 

libmpx/

	PR other/66887
	* mpxrt/mpxrt.c (read_mpx_status_sig): Remove useless code.

From-SVN: r228838
This commit is contained in:
Ilya Enkovich 2015-10-15 09:26:39 +00:00 committed by Ilya Enkovich
parent 1140d42f76
commit 269ca76f4b
2 changed files with 7 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
libmpx/ChangeLog
View File

@ -1,3 +1,8 @@
2015-10-15 Ilya Enkovich <enkovich.gnu@gmail.com>
PR other/66887
* mpxrt/mpxrt.c (read_mpx_status_sig): Remove useless code.
2015-07-16 Ilya Enkovich <enkovich.gnu@gmail.com> 2015-07-16 Ilya Enkovich <enkovich.gnu@gmail.com>
* configure.ac: Remove link_mpx. * configure.ac: Remove link_mpx.

9
libmpx/mpxrt/mpxrt.c
View File

@ -152,13 +152,8 @@ xgetbv (uint32_t index)
static uint64_t static uint64_t
read_mpx_status_sig (ucontext_t *uctxt) read_mpx_status_sig (ucontext_t *uctxt)
{ {
uint8_t __attribute__ ((__aligned__ (64))) buffer[4096]; uint8_t *regs = (uint8_t *)uctxt->uc_mcontext.fpregs + XSAVE_OFFSET_IN_FPMEM;
struct xsave_struct *xsave_buf = (struct xsave_struct *)buffer; struct xsave_struct *xsave_buf = (struct xsave_struct *)regs;
memset (buffer, 0, sizeof (buffer));
memcpy (buffer,
(uint8_t *)uctxt->uc_mcontext.fpregs + XSAVE_OFFSET_IN_FPMEM,
sizeof (struct xsave_struct));
return xsave_buf->bndcsr.status_reg; return xsave_buf->bndcsr.status_reg;
} }