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From: "hiraditya at msn dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/95565] New: [Feature request] add a flag to
 only instrument function entry.
Date: Sat, 06 Jun 2020 23:14:36 +0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: new
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X-Bugzilla-Product: gcc
X-Bugzilla-Component: tree-optimization
X-Bugzilla-Version: 11.0
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X-Bugzilla-Severity: normal
X-Bugzilla-Who: hiraditya at msn dot com
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X-Bugzilla-Priority: P3
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D95565

            Bug ID: 95565
           Summary: [Feature request] add a flag to only instrument
                    function entry.
           Product: gcc
           Version: 11.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: tree-optimization
          Assignee: unassigned at gcc dot gnu.org
          Reporter: hiraditya at msn dot com
  Target Milestone: ---

The flag -finstrument-functions instruments both entry and the exit of
function. There are many scenarios (like cheap profiling) only instrumenting
the function entry is sufficient. But gcc instruments exit as well contribu=
ting
to unwanted code size increase.=