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* Add the select optimization recently added to instcombine to constant folding.Nick Lewycky2011-01-291-0/+9
| | | | | | | This is the one where one of the branches of the select is another select on the same condition. llvm-svn: 124547
* Add a constant folding of casts from zero to zero. Fixes PR9011!Nick Lewycky2011-01-211-0/+35
| | | | | | | | While here, I'd like to complain about how vector is not an aggregate type according to llvm::Type::isAggregateType(), but they're listed under aggregate types in the LangRef and zero vectors are stored as ConstantAggregateZero. llvm-svn: 123956
* remove some noise from tests.Chris Lattner2010-09-021-2/+2
| | | | llvm-svn: 112889
* Fix a crasher trying to fold each element in a comparison between two vectorsNick Lewycky2010-01-211-1/+8
| | | | | | | | | | if one of the vectors didn't have elements (such as undef). Fixes PR 6096. Fix an issue in the constant folder where fcmp (<2 x %ty>, <2 x %ty>) would have <2 x i1> type if constant folding was successful and i1 type if it wasn't. This exposed a related issue in the bitcode reader. llvm-svn: 94069
* Teach vm core to more aggressively fold 'trunc' constantexprs,Chris Lattner2009-10-171-0/+18
| | | | | | | | | allowing it to simplify the crazy constantexprs in the testcases down to something sensible. This allows -std-compile-opts to completely "devirtualize" the pointers to member functions in the testcase from PR5176. llvm-svn: 84368
* remove # uses from FileCheck lines.Chris Lattner2009-10-171-14/+15
| | | | llvm-svn: 84367
* rename testChris Lattner2009-10-171-0/+41
llvm-svn: 84364
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