public inbox for binutils@sourceware.org
 help / color / mirror / Atom feed
* [PATCH 00/11] x86: NOP emission adjustments
@ 2023-09-27 15:46 Jan Beulich
  2023-09-27 15:47 ` [PATCH 01/11] x86: record flag_code in tc_frag_data Jan Beulich
                   ` (11 more replies)
  0 siblings, 12 replies; 13+ messages in thread
From: Jan Beulich @ 2023-09-27 15:46 UTC (permalink / raw)
  To: Binutils; +Cc: H.J. Lu

I've noticed a number of issues and inefficiencies.

01: x86: record flag_code in tc_frag_data
02: x86: i386_generate_nops() may not derive decisions from global variables
03: x86: don't use 32-bit LEA as NOP surrogate in 64-bit code
04: x86: don't use operand size override with NOP in 16-bit code
05: x86: respect ".arch nonop" when selecting which NOPs to emit
06: x86: i686 != PentiumPro
07: x86: don't record full i386_cpu_flags in struct i386_tc_frag_data
08: x86: add a few more NOP patterns
09: x86: fold a few of the "alternative" NOP patterns
10: x86: fold NOP testcase expecations where possible
11: gas: make .nops output visible in listing

Jan

^ permalink raw reply	[flat|nested] 13+ messages in thread

end of thread, other threads:[~2023-09-27 15:59 UTC | newest]

Thread overview: 13+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2023-09-27 15:46 [PATCH 00/11] x86: NOP emission adjustments Jan Beulich
2023-09-27 15:47 ` [PATCH 01/11] x86: record flag_code in tc_frag_data Jan Beulich
2023-09-27 15:48 ` [PATCH 02/11] x86: i386_generate_nops() may not derive decisions from global variables Jan Beulich
2023-09-27 15:48 ` [PATCH 03/11] x86: don't use 32-bit LEA as NOP surrogate in 64-bit code Jan Beulich
2023-09-27 15:49 ` [PATCH 04/11] x86: don't use operand size override with NOP in 16-bit code Jan Beulich
2023-09-27 15:50 ` [PATCH 05/11] x86: respect ".arch nonop" when selecting which NOPs to emit Jan Beulich
2023-09-27 15:50 ` [PATCH 06/11] x86: i686 != PentiumPro Jan Beulich
2023-09-27 15:51 ` [PATCH 07/11] x86: don't record full i386_cpu_flags in struct i386_tc_frag_data Jan Beulich
2023-09-27 15:51 ` [PATCH 08/11] x86: add a few more NOP patterns Jan Beulich
2023-09-27 15:52 ` [PATCH 09/11] x86: fold a few of the "alternative" " Jan Beulich
2023-09-27 15:52 ` [PATCH 10/11] x86: fold NOP testcase expectations where possible Jan Beulich
2023-09-27 15:53 ` [PATCH 11/11] gas: make .nops output visible in listing Jan Beulich
2023-09-27 15:59 ` [PATCH 00/11] x86: NOP emission adjustments Jan Beulich

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).