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2013-05-05Add missing PatternMatch.cpp to CMakeLists.txtArnold Schwaighofer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181147 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-05PatternMatch: Matcher for (un)ordered floating point min/maxArnold Schwaighofer
Add support for matching 'ordered' and 'unordered' floating point min/max constructs. In LLVM we can express min/max functions as a combination of compare and select. We have support for matching such constructs for integers but not for floating point. In floating point math there is no total order because of the presence of 'NaN'. Therefore, we have to be careful to preserve the original fcmp semantics when interpreting floating point compare select combinations as a minimum or maximum function. The resulting 'ordered/unordered' floating point maximum function has to select the same value as the select/fcmp combination it is based on. ordered_max(x,y) = max(x,y) iff x and y are not NaN, y otherwise unordered_max(x,y) = max(x,y) iff x and y are not NaN, x otherwise ordered_min(x,y) = min(x,y) iff x and y are not NaN, y otherwise unordered_min(x,y) = min(x,y) iff x and y are not NaN, x otherwise This matches the behavior of the underlying select(fcmp(olt/ult/.., L, R), L, R) construct. Any code using this predicate has to preserve this semantics. A follow-up patch will use this to implement floating point min/max reductions in the vectorizer. radar://13723044 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181143 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-12Fix a disconcerting bug in Value::isUsedInBasicBlock, which gave wrong ↵Benjamin Kramer
answers for blocks larger than 3 instrs. Also add a unit test. PR15727. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179370 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-31Change GetPointerBaseWithConstantOffset's DataLayout argument from aDan Gohman
reference to a pointer, so that it can handle the case where DataLayout is not available and behave conservatively. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174024 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-27Fix test to not use the AttributeSet's AttributeWithIndex creation method.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173608 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-23llvm/unittests: Use OwningPtr to fix --vg-leak.NAKAMURA Takumi
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173240 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-23IRTests/WaymarkTest.cpp: Fix in --vg-leak.NAKAMURA Takumi
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173239 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-23IRTests/IRBuilderTest.cpp: GetIntTy: Delete DL at yourself since it is not ↵NAKAMURA Takumi
linked. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173238 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-23IRTests/IRBuilderTest.cpp: Let GV added to the module.NAKAMURA Takumi
It fixes --vg-leak. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173237 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-23IRTests/ConstantsTest.cpp: AsInstructionsTest: Delete each instruction ↵NAKAMURA Takumi
immediately if it is not linked. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173236 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-23Untabify.NAKAMURA Takumi
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173235 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-23DominatorTreeTest.cpp: Add the file header.NAKAMURA Takumi
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173233 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-16Allow vectors in CreatePointerCast of constants.Evgeniy Stepanov
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172615 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-16A test for r172535.Evgeniy Stepanov
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172614 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-14Improve r172464: const_cast is not needed if the variable is not constDmitri Gribenko
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172474 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-14Fix CastsDavid Greene
Use const_cast<> to avoid cast-away-const errors. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172464 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-12Add a unit test to verifies that attribute uniquing works so it doesn't ↵Benjamin Kramer
break again. The folding set details can be subtle and broke twice in the last couple of weeks. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172313 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-07Rename the VMCore unittest tree to IR. Somehow was missed when doing theChandler Carruth
library rename. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171747 91177308-0d34-0410-b5e6-96231b3b80d8
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