[Bug gas/29794] New: find_reloc_table_entry should be speed up

[pinskia at gcc dot gnu.org]

https://sourceware.org/bugzilla/show_bug.cgi?id=29794

            Bug ID: 29794
           Summary: find_reloc_table_entry should be speed up
           Product: binutils
           Version: unspecified
            Status: NEW
          Keywords: performance
          Severity: normal
          Priority: P2
         Component: gas
          Assignee: unassigned at sourceware dot org
          Reporter: pinskia at gcc dot gnu.org
  Target Milestone: ---
            Target: aarch64*-*-*

With -O0 generated code, sometimes strlen shows up high on the perf profiling
of gas.
I looked and saw find_reloc_table_entry each time calls strlen on the name of
the relocation in the const table.
There has to be a better way of matching :lo12: and such.

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