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Date: Thu, 01 Apr 2004 04:41:00 -0000
From: "kazu at cs dot umass dot edu" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Message-ID: <20040401044059.14806.kazu@cs.umass.edu>
Reply-To: gcc-bugzilla@gcc.gnu.org
Subject: [Bug optimization/14806] New: [tree-ssa] missed tail call optimization in presence of a const function
X-Bugzilla-Reason: CC
X-SW-Source: 2004-04/txt/msg00023.txt.bz2
List-Id: <gcc-bugs.sourceware.org>

int bar (int) __attribute__((const));

int g;

int
foo (int a)
{
  int b = bar (b);
  g = 0;
  return b;
}

Note that we can move "g = 0;" to before "bar (b)".

-- 
           Summary: [tree-ssa] missed tail call optimization in presence of
                    a const function
           Product: gcc
           Version: tree-ssa
            Status: UNCONFIRMED
          Keywords: pessimizes-code
          Severity: enhancement
          Priority: P2
         Component: optimization
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: kazu at cs dot umass dot edu
                CC: gcc-bugs at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14806