[Bug c++/14950] New: always_inline does not mix with templates and -O0

[veksler at il dot ibm dot com]

The following does not compile with -O0, but does with -O2. It used to
work well on gcc-3.2 and gcc-3.1

  $  cat t.cc
  template <class T> inline void Foo(T) __attribute__((always_inline));
  template <class T> inline void Foo(T) {}
  int main() 
  {
     int i; 
     Foo(i); 
  }
  $ $gcc34/bin/g++ -c t.cc
  t.cc: In function `int main()':
  t.cc:2: sorry, unimplemented: inlining failed in call to 'void Foo(T) 
[with T = int]': function body not available
  t.cc:6: sorry, unimplemented: called from here

When compiled with -O, it works OK. When the same is done without 
templates it works OK:

  $ cat t2.cc
  inline void Foo(int) __attribute__((always_inline));
  inline void Foo(int) {}
  int main()
  {
    int i;
    Foo(i);
  }

This is inconsistent.

  $ $gcc34/bin/g++ -v
  Reading specs from /home/veksler/gcc/lib/gcc/i686-pc-linux-gnu/3.4.0/specs
  Configured with: ../gcc-3.4.0-20040406/configure --prefix=/home/veksler/gcc
--enable-languages=c++
  Thread model: posix
  gcc version 3.4.0 20040407 (prerelease)

-- 
           Summary: always_inline does not mix with templates and -O0
           Product: gcc
           Version: 3.4.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: veksler at il dot ibm dot com
                CC: gcc-bugs at gcc dot gnu dot org
  GCC host triplet: i686-pc-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14950