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Ravi Bangoria 3149733584 perf annotate: Add fusion logic for AMD microarchs 
AMD family 15h and above microarchs fuse a subset of cmp/test/ALU
instructions with branch instructions[1][2]. Add perf annotate
fused instruction support for these microarchs.

Before:
         │       testb  $0x80,0x51(%rax)
         │    ┌──jne    5b3
    0.78 │    │  mov    %r13,%rdi
         │    │→ callq  mark_page_accessed
    1.08 │5b3:└─→mov    0x8(%r13),%rax

After:
         │    ┌──testb  $0x80,0x51(%rax)
         │    ├──jne    5b3
    0.78 │    │  mov    %r13,%rdi
         │    │→ callq  mark_page_accessed
    1.08 │5b3:└─→mov    0x8(%r13),%rax

[1] https://bugzilla.kernel.org/attachment.cgi?id=298553
[2] https://bugzilla.kernel.org/attachment.cgi?id=298555

Committer testing:

On a:

  $ grep -m1 "model name" /proc/cpuinfo
  model name	: AMD Ryzen 9 3900X 12-Core Processor
  $

  Samples: 44K of event 'cycles', 4000 Hz, Event count (approx.): 7533249650
  _int_malloc  /usr/lib64/libc-2.33.so [Percent: local period]
  Percent│    ┌──test   %eax,%eax
         │    ├──jne    884
         │    │↓ jmpq   943
         │    │  nop
         │878:│  add    $0x10,%rdx
    0.64 │    │  add    %eax,%eax
    0.57 │    │↓ je     cc9
    0.77 │884:└─→test   %esi,%eax
         │     ↑ je     878
         │       mov    0x18(%rdx),%r15

Reported-by: Kim Phillips <kim.phillips@amd.com>
Signed-off-by: Ravi Bangoria <ravi.bangoria@amd.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jin Yao <yao.jin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https //lore.kernel.org/r/20210911043854.8373-2-ravi.bangoria@amd.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2021-09-15 17:54:52 -03:00
..
arch
perf annotate: Add fusion logic for AMD microarchs
2021-09-15 17:54:52 -03:00
bench
Merge branch 'akpm' (patches from Andrew)
2021-09-08 12:55:35 -07:00
dlfilters
perf tests: Add dlfilter test
2021-08-11 09:35:44 -03:00
Documentation
perf dlfilter: Amend documentation wrt library dependencies
2021-08-11 09:34:31 -03:00
examples/bpf
…
include
perf build: Move perf_dlfilters.h in the source tree
2021-08-11 09:35:24 -03:00
jvmti
…
pmu-events
perf vendor events: Update metrics for SkyLake Server
2021-08-10 15:19:49 -03:00
python
…
scripts
perf scripts python: Fix passing arguments to stackcollapse report
2021-09-10 11:45:19 -03:00
tests
perf test: Fix bpf test sample mismatch reporting
2021-09-10 11:45:19 -03:00
trace
perf beauty: Cover more flags in the move_mount syscall argument beautifier
2021-09-10 18:15:22 -03:00
ui
perf annotate: Re-add annotate_warned functionality
2021-08-03 17:04:04 -03:00
util
perf annotate: Add fusion logic for AMD microarchs
2021-09-15 17:54:52 -03:00
.gitignore
perf tools: Ignore Documentation dependency file
2021-09-11 15:36:16 -03:00
Build
…
builtin-annotate.c
perf tools: Remove repipe argument from perf_session__new()
2021-08-02 10:06:51 -03:00
builtin-bench.c
perf bench: Add benchmark for evlist open/close operations
2021-08-10 11:32:37 -03:00
builtin-buildid-cache.c
perf tools: Remove repipe argument from perf_session__new()
2021-08-02 10:06:51 -03:00
builtin-buildid-list.c
perf tools: Remove repipe argument from perf_session__new()
2021-08-02 10:06:51 -03:00
builtin-c2c.c
Merge branch 'akpm' (patches from Andrew)
2021-09-08 12:55:35 -07:00
builtin-config.c
…
builtin-daemon.c
…
builtin-data.c
perf data: Correct -h output
2021-08-31 15:12:00 -03:00
builtin-diff.c
perf tools: Remove repipe argument from perf_session__new()
2021-08-02 10:06:51 -03:00
builtin-evlist.c
perf tools: Remove repipe argument from perf_session__new()
2021-08-02 10:06:51 -03:00
builtin-ftrace.c
…
builtin-help.c
…
builtin-inject.c
perf inject: Fix output from a file to a pipe
2021-08-02 10:14:34 -03:00
builtin-kallsyms.c
…
builtin-kmem.c
perf tools: Remove repipe argument from perf_session__new()
2021-08-02 10:06:51 -03:00
builtin-kvm.c
perf tools: Remove repipe argument from perf_session__new()
2021-08-02 10:06:51 -03:00
builtin-list.c
…
builtin-lock.c
perf tools: Remove repipe argument from perf_session__new()
2021-08-02 10:06:51 -03:00
builtin-mem.c
perf tools: Remove repipe argument from perf_session__new()
2021-08-02 10:06:51 -03:00
builtin-probe.c
perf probe: Do not show @plt function by default
2021-07-07 10:28:10 -03:00
builtin-record.c
Merge branch 'akpm' (patches from Andrew)
2021-09-08 12:55:35 -07:00
builtin-report.c
perf tools: Remove repipe argument from perf_session__new()
2021-08-02 10:06:51 -03:00
builtin-sched.c
perf tools: Remove repipe argument from perf_session__new()
2021-08-02 10:06:51 -03:00
builtin-script.c
perf script python: Allow reporting the [un]throttle PERF_RECORD_ meta event
2021-09-03 08:18:25 -03:00
builtin-stat.c
perf stat: Do not allow --for-each-cgroup without cpu
2021-08-30 18:22:23 -03:00
builtin-timechart.c
perf tools: Remove repipe argument from perf_session__new()
2021-08-02 10:06:51 -03:00
builtin-top.c
perf tools: Remove repipe argument from perf_session__new()
2021-08-02 10:06:51 -03:00
builtin-trace.c
perf tools: Remove repipe argument from perf_session__new()
2021-08-02 10:06:51 -03:00
builtin-version.c
…
builtin.h
…
check-headers.sh
perf report: Add tools/arch/x86/include/asm/amd-ibs.h
2021-09-10 18:13:20 -03:00
command-list.txt
…
CREDITS
…
design.txt
…
Makefile
…
Makefile.config
perf tools: Add an option to build without libbfd
2021-09-11 16:06:52 -03:00
Makefile.perf
perf dlfilters: Fix build on environments with a --sysroot gcc arg
2021-08-31 15:11:55 -03:00
MANIFEST
…
perf-archive.sh
…
perf-completion.sh
…
perf-iostat.sh
…
perf-read-vdso.c
…
perf-sys.h
…
perf-with-kcore.sh
…
perf.c
perf debug: Move debug initialization earlier
2021-05-27 13:24:22 -03:00
perf.h
…