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Merge from branch to fix bug.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/tags/RELEASE_22@46994 91177308-0d34-0410-b5e6-96231b3b80d8
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Tanya Lattner 2008-02-12 06:50:19 +00:00
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@ -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>