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2011-07-09Land the long talked about "type system rewrite" patch. ThisChris Lattner
patch brings numerous advantages to LLVM. One way to look at it is through diffstat: 109 files changed, 3005 insertions(+), 5906 deletions(-) Removing almost 3K lines of code is a good thing. Other advantages include: 1. Value::getType() is a simple load that can be CSE'd, not a mutating union-find operation. 2. Types a uniqued and never move once created, defining away PATypeHolder. 3. Structs can be "named" now, and their name is part of the identity that uniques them. This means that the compiler doesn't merge them structurally which makes the IR much less confusing. 4. Now that there is no way to get a cycle in a type graph without a named struct type, "upreferences" go away. 5. Type refinement is completely gone, which should make LTO much MUCH faster in some common cases with C++ code. 6. Types are now generally immutable, so we can use "Type *" instead "const Type *" everywhere. Downsides of this patch are that it removes some functions from the C API, so people using those will have to upgrade to (not yet added) new API. "LLVM 3.0" is the right time to do this. There are still some cleanups pending after this, this patch is large enough as-is. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134829 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-07type can be nullChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134601 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-07use a more efficient check for 'is metadata'Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134599 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-22Replace the existing forms of ConstantArray::get() with a single formJay Foad
that takes an ArrayRef. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133615 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-20Make better use of the PHINode API.Jay Foad
Change various bits of code to make better use of the existing PHINode API, to insulate them from forthcoming changes in how PHINodes store their operands. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133434 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-20Revamp the "ConstantStruct::get" methods. Previously, these were scatteredChris Lattner
all over the place in different styles and variants. Standardize on two preferred entrypoints: one that takes a StructType and ArrayRef, and one that takes StructType and varargs. In cases where there isn't a struct type convenient, we now add a ConstantStruct::getAnon method (whose name will make more sense after a few more patches land). It would be "really really nice" if the ConstantStruct::get and ConstantVector::get methods didn't make temporary std::vectors. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133412 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-17Drop the "2" suffix on some enums.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133274 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-17remove support for a bunch of obsolete instruction encodingsChris Lattner
and other backward compatibility hacks. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133273 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-17missed a file.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133270 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-17Remove some "2" suffixes from the metadata enums now that "1" is gone.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133269 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-17remove bitcode reader support for LLVM 2.7 metadata encoding.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133268 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-14Update BitcodeWriter to match recent Triple changes. rdar://9603399Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132959 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-03Revert name change from r132533. Lower case naming was intended per style ↵Chad Rosier
guidelines. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132555 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-03Whitespace and other cleanup. Functionallity unchanged.Chad Rosier
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132533 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-26Fix LTO builds with xcode 4.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132132 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-06It's valid to take the blockaddress of a different function, so remove thisNick Lewycky
assert in the bitcode writer. No change needed because the ValueEnumerator holds a whole-module numbering anyhow. Fixes PR9857! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131016 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-21PR9214: Convert Metadata API to use ArrayRef.Jay Foad
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129932 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-15Fix a ton of comment typos found by codespell. Patch byChris Lattner
Luis Felipe Strano Moraes! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129558 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-13PR9214: Convert ConstantExpr::getWithOperands() to use ArrayRef.Jay Foad
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129439 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-11Fix or remove code which seemed to think that the operand of a ConstantJay Foad
was always a User. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129272 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-10Revert r129235 pending a vetting of the EH rewrite.Bill Wendling
--- Reverse-merging r129235 into '.': D test/Feature/bb_attrs.ll U include/llvm/BasicBlock.h U include/llvm/Bitcode/LLVMBitCodes.h U lib/VMCore/AsmWriter.cpp U lib/VMCore/BasicBlock.cpp U lib/AsmParser/LLParser.cpp U lib/AsmParser/LLLexer.cpp U lib/AsmParser/LLToken.h U lib/Bitcode/Reader/BitcodeReader.cpp U lib/Bitcode/Writer/BitcodeWriter.cpp git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129259 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-10Beginning of the Great Exception Handling Rewrite.Bill Wendling
* Add a "landing pad" attribute to the BasicBlock. * Modify the bitcode reader and writer to handle said attribute. Later: The verifier will ensure that the landing pad attribute is used in the appropriate manner. I.e., not applied to the entry block, and applied only to basic blocks that are branched to via a `dispatch' instruction. (This is a work-in-progress.) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129235 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-06Do a topological sort of the types before writing them out.Rafael Espindola
This takes the linking of libxul on linux from 6m54.931s to 5m39.840s. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129009 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-30Remove PHINode::reserveOperandSpace(). Instead, add a parameter toJay Foad
PHINode::Create() giving the (known or expected) number of operands. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128537 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-18Move library stuff out of the toplevel CMakeLists.txt file.Oscar Fuentes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125968 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-15convert ConstantVector::get to use ArrayRef.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125537 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-14revert my ConstantVector patch, it seems to have made the llvm-gccChris Lattner
builders unhappy. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125504 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-14Switch ConstantVector::get to use ArrayRef instead of a pointer+sizeChris Lattner
idiom. Change various clients to simplify their code. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125487 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-07implement .ll and .bc support for nsw/nuw on shl and exact on lshr/ashr.Chris Lattner
Factor some code better. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125006 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-06enhance vmcore to know that udiv's can be exact, and add a trivialChris Lattner
instcombine xform to exercise this. Nothing forms exact udivs yet though. This is progress on PR8862 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124992 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-11FixedNumOperandTraits and VariadicOperandTraits assumed that, given aJay Foad
"this" pointer for any subclass of User, you could static_cast it to User* and then reinterpret_cast that to Use* to get the end of the operand list. This isn't a safe assumption in general, because the static_cast might adjust the "this" pointer. Fixed by having these OperandTraits classes take an extra template parameter, which is the subclass of User. This is groundwork for PR889. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123235 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-08First step in fixing PR8927:Rafael Espindola
Add a unnamed_addr bit to global variables and functions. This will be used to indicate that the address is not significant and therefore the constant or function can be merged with others. If an optimization pass can show that an address is not used, it can set this. Examples of things that can have this set by the FE are globals created to hold string literals and C++ constructors. Adding unnamed_addr to a non-const global should have no effect unless an optimization can transform that global into a constant. Aliases are not allowed to have unnamed_addr since I couldn't figure out any use for it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123063 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-19Add missing standard headers. Patch by Joerg Sonnenberger!Nick Lewycky
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122193 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-29Generalize the darwin wrapper hack to work with generic macho triples as ↵Chris Lattner
well as darwin ones. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120346 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-29Merge System into Support.Michael J. Spencer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120298 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-28Fix PR8494: when reading invalid bitcode, getTypeByID may returnDuncan Sands
a null pointer. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117551 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-06Provide a fast "get me the target triple from the module" API. This canBill Wendling
drastically reduce the linking time during LTO. Patch by Shantonu Sen! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115728 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-28Fix spelling.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114974 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-13Revert "CMake: Get rid of LLVMLibDeps.cmake and export the libraries normally."Michael J. Spencer
This reverts commit r113632 Conflicts: cmake/modules/AddLLVM.cmake git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113819 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-13Add full auto-upgrade support for LLVM 2.7 bitcode metadata.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113764 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-10CMake: Get rid of LLVMLibDeps.cmake and export the libraries normally.Michael J. Spencer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113632 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-10Add X86 MMX type to bitcode and Type.Dale Johannesen
(The Ada bindings probably need it too, but all the obvious places to change say "do not edit this file".) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113618 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-10Auto-upgrade the magic ".llvm.eh.catch.all.value" global toBill Wendling
"llvm.eh.catch.all.value". Only the name needs to be changed. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113600 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-09Discard metadata produced by LLVM 2.7. The value enumeration it usedDan Gohman
is different from what the code now uses in a two ways: NamedMDNodes were considered Values and included in the numbering, and the function-local metadata counter wasn't reset between functions. The later problem breaks lazy deserialization, so instead of trying to emulate the old numbering, just drop the old metadata. The only in-tree use case is debug info with LTO, where the QOI loss is considered acceptable. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113557 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-04zap dead code.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113073 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-28remove unions from LLVM IR. They are severely buggy and notChris Lattner
being actively maintained, improved, or extended. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112356 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-25Add a FIXME comment.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112083 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-25Fix the bitcode reader to clear out function-specific stateDan Gohman
from MDValueList between each function, now that the bitcode writer is reusing the index space for function-local metadata. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112082 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-25Fix a bug found by inspection.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112081 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-25Add a comment.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112080 91177308-0d34-0410-b5e6-96231b3b80d8
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