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author | Anton Korobeynikov <asl@math.spbu.ru> | 2008-06-08 10:24:13 +0000 |
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committer | Anton Korobeynikov <asl@math.spbu.ru> | 2008-06-08 10:24:13 +0000 |
commit | 77d15e2817cbd7ee9f726a69a5872b99d196dfd0 (patch) | |
tree | b5bd921a84017ecf285295276193896aa7465a84 | |
parent | 877b73b7269940c14908afc16838eea5c5fd8b81 (diff) | |
download | external_llvm-77d15e2817cbd7ee9f726a69a5872b99d196dfd0.zip external_llvm-77d15e2817cbd7ee9f726a69a5872b99d196dfd0.tar.gz external_llvm-77d15e2817cbd7ee9f726a69a5872b99d196dfd0.tar.bz2 |
Add win64
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52091 91177308-0d34-0410-b5e6-96231b3b80d8
-rw-r--r-- | docs/ReleaseNotes.html | 23 |
1 files changed, 16 insertions, 7 deletions
diff --git a/docs/ReleaseNotes.html b/docs/ReleaseNotes.html index e72f61f..82ba0c7 100644 --- a/docs/ReleaseNotes.html +++ b/docs/ReleaseNotes.html @@ -306,17 +306,20 @@ faster:</p> area of passing and returning structures by value. llvm-gcc compiled code now interoperates very well on X86-64 systems with other compilers.</li> +<li>Support for Win64 was added. This includes codegeneration itself, JIT + support and necessary changes to llvm-gcc.</li> + <li>The LLVM X86 backend now supports the support SSE 4.1 instruction set, and the llvm-gcc 4.2 front-end supports the SSE 4.1 compiler builtins. Various generic vector operations (insert/extract/shuffle) are much more efficient when SSE 4.1 is enabled. The JIT automatically takes advantage of these instructions, but llvm-gcc must be explicitly told to use them, e.g. with <tt>-march=penryn</tt>.</li> - + <li>The X86 backend now does a number of optimizations that aim to avoid converting numbers back and forth from SSE registers to the X87 floating point stack.</li> - + <li>The X86 backend supports stack realignment, which is particularly useful for vector code on OS's without 16-byte aligned stacks.</li> @@ -326,7 +329,7 @@ faster:</p> <li>Trampolines (taking the address of a nested function) now work on Linux/x86-64.</li> - + <li><tt>__builtin_prefetch</tt> is now compiled into the appropriate prefetch instructions instead of being ignored.</li> @@ -450,11 +453,17 @@ href="http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev">LLVMdev list</a>.</p> <div class="doc_text"> <ul> -<li>The X86 backend does not yet support all <a - href="http://llvm.org/PR879">inline assembly that uses the X86 floating - point stack</a>. It supports the 'f' and 't' constraints, but not 'u'.</li> -<li>The X86 backend generates inefficient floating point code when configured to + <li>The X86 backend does not yet support + all <a href="http://llvm.org/PR879">inline assembly that uses the X86 + floating point stack</a>. It supports the 'f' and 't' constraints, but not + 'u'.</li> + <li>The X86 backend generates inefficient floating point code when configured to generate code for systems that don't have SSE2.</li> + <li>Win64 codegeneration wasn't widely tested. Everything should work, but we + expect small issues to happen. Also, llvm-gcc cannot build mingw64 runtime + currently due + to <a href="http://llvm.org/PR2255">several</a> + <a href="http://llvm.org/PR2257">bugs</a> in FP stackifier </ul> </div> |