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4 Commits

Author SHA1 Message Date
Nuno Lopes
d49981a9bb fix PR13339 (remove the predecessor from the unwind BB when removing an invoke) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160325 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-07-16 22:49:40 +00:00
Nuno Lopes
4ccb89c71f fix the regression I introduced in r159385 (it's necessary to update PHI nodes in unwind BB 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159534 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-07-02 16:14:47 +00:00
Nuno Lopes
7f71f5f6b8 make simplifyCFG erase invokes to readonly/readnone functions 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159385 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-06-28 22:32:27 +00:00
Nuno Lopes
3769fe149b improve optimization of invoke instructions: 
- simplifycfg:  invoke undef/null -> unreachable
 - instcombine:  invoke new  -> invoke expect(0, 0)  (an arbitrary NOOP intrinsic;  only done if the allocated memory is unused, of course)
 - verifier:  allow invoke of intrinsics  (to make the previous step work)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159146 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-06-25 17:11:47 +00:00