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authorNamhyung Kim <namhyung@kernel.org>2023-05-24 13:50:53 -0700
committerArnaldo Carvalho de Melo <acme@redhat.com>2023-06-09 10:56:05 -0300
commitd0b35979986e3bd03cb2f2e887e0b8036ae06198 (patch)
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perf annotate: Handle x86 instruction suffix generally
In AT&T asm syntax, most of x86 instructions can have size suffix like b, w, l or q. Instead of adding all these instructions in the table, we can handle them in a general way. For example, it can try to find an instruction as is. If not found, assuming it has a suffix and it'd try again without the suffix if it's one of the allowed suffixes. This way, we can reduce the instruction table size for duplicated entries of the same instructions with a different suffix. If an instruction xyz and others like xyz<suffix> are completely different ones, then they both need to be listed in the table so that they can be found before the second attempt (without the suffix). Reviewed-by: Adrian Hunter <adrian.hunter@intel.com> Reviewed-by: Masami Hiramatsu <mhiramat@kernel.org> Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Andi Kleen <ak@linux.intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Peter Zijlstra <peterz@infradead.org> Link: https://lore.kernel.org/r/20230524205054.3087004-1-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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