Commit ef55b5d8 authored by Tanya Lattner's avatar Tanya Lattner
Browse files

Fix bugs section. 

llvm-svn: 46992
parent 1c4be00c

llvm/docs/ReleaseNotes.html

+47 −46
Original line number Diff line number Diff line
@@ -545,52 +545,6 @@ programs.</li> 
  <a name="c-fe">Known problems with the C front-end</a>

</div>



<!-- ======================================================================= -->

<div class="doc_subsection">

  <a name="ada-fe">Known problems with the Ada front-end</a>

</div>



<div class="doc_text">

The llvm-gcc 4.2 Ada compiler works fairly well, however this is not a mature

technology and problems should be expected.

<ul>

<li>The Ada front-end currently only builds on x86-32.  This is mainly due

to lack of trampoline support (pointers to nested functions) on other platforms,

however it <a href="http://llvm.org/PR2006">also fails to build on x86-64</a>

which does support trampolines.</li>

<li>The Ada front-end <a href="http://llvm.org/PR2007">fails to bootstrap</a>.

Workaround: configure with --disable-bootstrap.</li>

<li>The c380004 and <a href="http://llvm.org/PR2010">c393010</a> ACATS tests

fail (c380004 also fails with gcc-4.2 mainline).</li>

<li>Many gcc specific Ada tests continue to crash the compiler.</li>

<li>The -E binder option (exception backtraces)

<a href="http://llvm.org/PR1982">does not work</a> and will result in programs

crashing if an exception is raised.  Workaround: do not use -E.</li>

<li>Only discrete types <a href="http://llvm.org/PR1981">are allowed to start

or finish at a non-byte offset</a> in a record.  Workaround: do not pack records

or use representation clauses that result in a field of a non-discrete type

starting or finishing in the middle of a byte.</li>

<li>The lli interpreter <a href="http://llvm.org/PR2009">considers 'main'

as generated by the Ada binder to be invalid</a>.

Workaround: hand edit the file to use pointers for argv and envp rather than

integers.</li>

<li>The -fstack-check option <a href="http://llvm.org/PR2008">is ignored</a>.</li>

</ul>

</div>



<!-- ======================================================================= -->

<div class="doc_subsection">

  <a name="fortran-fe">Known problems with the Fortran front-end</a>

</div>



<div class="doc_text">



<ul>

<li>The llvm-gcc 4.2 gfortran front-end supports a broad range of Fortran code, but does

<a href="http://llvm.org/PR1971">not support EQUIVALENCE yet</a>.</li>

</ul>

</div>



<!-- _______________________________________________________________________ -->

<div class="doc_subsubsection">Bugs</div>
@@ -722,6 +676,53 @@ It works well for x86-64 darwin but not x86-64 linux.</li> 






<!-- ======================================================================= -->

<div class="doc_subsection">

  <a name="ada-fe">Known problems with the Ada front-end</a>

</div>



<div class="doc_text">

The llvm-gcc 4.2 Ada compiler works fairly well, however this is not a mature

technology and problems should be expected.

<ul>

<li>The Ada front-end currently only builds on x86-32.  This is mainly due

to lack of trampoline support (pointers to nested functions) on other platforms,

however it <a href="http://llvm.org/PR2006">also fails to build on x86-64</a>

which does support trampolines.</li>

<li>The Ada front-end <a href="http://llvm.org/PR2007">fails to bootstrap</a>.

Workaround: configure with --disable-bootstrap.</li>

<li>The c380004 and <a href="http://llvm.org/PR2010">c393010</a> ACATS tests

fail (c380004 also fails with gcc-4.2 mainline).</li>

<li>Many gcc specific Ada tests continue to crash the compiler.</li>

<li>The -E binder option (exception backtraces)

<a href="http://llvm.org/PR1982">does not work</a> and will result in programs

crashing if an exception is raised.  Workaround: do not use -E.</li>

<li>Only discrete types <a href="http://llvm.org/PR1981">are allowed to start

or finish at a non-byte offset</a> in a record.  Workaround: do not pack records

or use representation clauses that result in a field of a non-discrete type

starting or finishing in the middle of a byte.</li>

<li>The lli interpreter <a href="http://llvm.org/PR2009">considers 'main'

as generated by the Ada binder to be invalid</a>.

Workaround: hand edit the file to use pointers for argv and envp rather than

integers.</li>

<li>The -fstack-check option <a href="http://llvm.org/PR2008">is ignored</a>.</li>

</ul>

</div>



<!-- ======================================================================= -->

<div class="doc_subsection">

  <a name="fortran-fe">Known problems with the Fortran front-end</a>

</div>



<div class="doc_text">



<ul>

<li>The llvm-gcc 4.2 gfortran front-end supports a broad range of Fortran code, but does

<a href="http://llvm.org/PR1971">not support EQUIVALENCE yet</a>.</li>

</ul>

</div>





<!-- *********************************************************************** -->

<div class="doc_section">

  <a name="additionalinfo">Additional Information</a>