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Target/X86/MCTargetDesc/X86MCAsmInfo.cpp: Enable DwarfCFI (aka DW2) on Cygming.

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Cygwin-1.7 supports dw2. Some recent mingw distros support one, too.
I have confirmed test-suite/SingleSource/Benchmarks/Shootout-C++/except.cpp can pass on Cygwin.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154247 91177308-0d34-0410-b5e6-96231b3b80d8
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NAKAMURA Takumi
2012-04-07 02:24:20 +00:00
parent 0fdfaafb70
commit 847307a35b
2 changed files with 4 additions and 0 deletions
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docs/ReleaseNotes.html
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@@ -384,6 +384,7 @@ Release Notes</a>.</h1>
<li>Call instructions use the new register mask operands for faster compile
times and better support for different calling conventions. The old WINCALL
instructions are no longer needed.</li>
<li>DW2 Exception Handling is enabled on Cygwin and MinGW.</li>
</ul>
</div>