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Jakob Stoklund Olesen a34a69ce0c Fix 12892.
Dead code elimination during coalescing could cause a virtual register
to be split into connected components. The following rewriting would be
confused about the already joined copies present in the code, but
without a corresponding value number in the live range.

Erase all joined copies instantly when joining intervals such that the
MI and LiveInterval representations are always in sync.

llvm-svn: 157135
2012-05-19 23:34:59 +00:00
clang objective-c: Warn if default synthesizing readonly IBOutlet properties 2012-05-19 18:17:17 +00:00
compiler-rt tsan: check for overflow in malloc() 2012-05-18 09:41:52 +00:00
debuginfo-tests Revert previous patch as the corresponding clang patch was reverted. 2012-01-26 07:01:33 +00:00
libclc Switch to BSD/MIT dual license. 2012-02-22 04:47:39 +00:00
libcxx Revert fix to http://llvm.org/bugs/show_bug.cgi?id=12867 for the reason now included in the code comment. 2012-05-19 20:20:49 +00:00
libcxxabi Fix bug in cxa_demangle involving template substitution. 2012-05-02 15:38:11 +00:00
lld remove completed items 2012-05-04 01:14:02 +00:00
lldb Fixes the case where we created a dummy target, deleted it, and then tried to evaluate an expression with no target. 2012-05-19 09:59:08 +00:00
llvm Fix 12892. 2012-05-19 23:34:59 +00:00
polly make registerPollyPreoptPasses static 2012-05-07 21:27:11 +00:00