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path: root/lib/IR/Constants.cpp
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2013-03-19The testing to ensure a vector of zeros of type floating point isn't ↵David Tweed
misclassified as negative zero can be simplified, as pointed out by Duncan Sands. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@177386 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-18 The optimization a + (-0.0f) -> a was being misapplied to a + (+0.0f) in ↵David Tweed
the vector case (because we weren't differntiating floating-point zeroinitializers from other zero-initializers) which was causing problems for code relying upon a + (+0.0f) to, eg, flush denormals to 0. Make the scalar and vector cases have the same behaviour. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@177279 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-07Replace temporary vectors with arrays.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176651 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-07ArrayRef has a OneElt constructor. Beautify the code.Nadav Rotem
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176604 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-07Switch from std::vector to ArrayRef. Speedup FoldBitCast by 5x.Nadav Rotem
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176602 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-22Make APFloat constructor require explicit semantics.Tim Northover
Previously we tried to infer it from the bit width size, with an added IsIEEE argument for the PPC/IEEE 128-bit case, which had a default value. This default value allowed bugs to creep in, where it was inappropriate. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173138 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
2013-01-09Add comment to the definition of Constant::isZeroValue(). Shuxin Yang
(There already has a concise comment to the declaration.) Thank Eric Christopher for his feedback! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171926 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-09Consider expression "0.0 - X" as the negation of X ifShuxin Yang
- this expression is explicitly marked no-signed-zero, or - no-signed-zero of this expression can be derived from some context. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171922 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-02Move all of the header files which are involved in modelling the LLVM IRChandler Carruth
into their new header subdirectory: include/llvm/IR. This matches the directory structure of lib, and begins to correct a long standing point of file layout clutter in LLVM. There are still more header files to move here, but I wanted to handle them in separate commits to make tracking what files make sense at each layer easier. The only really questionable files here are the target intrinsic tablegen files. But that's a battle I'd rather not fight today. I've updated both CMake and Makefile build systems (I think, and my tests think, but I may have missed something). I've also re-sorted the includes throughout the project. I'll be committing updates to Clang, DragonEgg, and Polly momentarily. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171366 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-02Rename VMCore directory to IR.Chandler Carruth
Aside from moving the actual files, this patch only updates the build system and the source file comments under lib/... that are relevant. I'll be updating other docs and other files in smaller subsequnet commits. While I've tried to test this, but it is entirely possible that there will still be some build system fallout. Also, note that I've not changed the library name itself: libLLVMCore.a is still the library name. I'd be interested in others' opinions about whether we should rename this as well (I think we should, just not sure what it might break) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171359 91177308-0d34-0410-b5e6-96231b3b80d8