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2012-02-29BitcodeWriter: Expose less implementation details -- make BackpatchWord privateDaniel Dunbar
and remove getBuffer(). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151748 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-29Bitcode: Don't expose WriteBitcodeToStream to clients.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151747 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-07Bitcode/BitstreamReader.h: Tweak for big endian hosts.NAKAMURA Takumi
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149980 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-06System headers after llvm headers.Nick Lewycky
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149919 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-06Enable streaming of bitcodeDerek Schuff
This CL delays reading of function bodies from initial parse until materialization, allowing overlap of compilation with bitcode download. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149918 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-06[unwind removal] Remove a the obsolete 'unwind' enum value.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149911 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-05Convert assert(0) to llvm_unreachableCraig Topper
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149849 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-30Add bitcode reader and writer support for ConstantDataAggregate, whichChris Lattner
should be feature complete now. Lets see if it works. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149215 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-23The iteration order over a std::set<Module*> depends on the addresses of theRafael Espindola
modules. Avoid that to make the order the linker sees the modules deterministic. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148676 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-10Add 'llvm_unreachable' to passify GCC's understanding of the constraintsChandler Carruth
of several newly un-defaulted switches. This also helps optimizers (including LLVM's) recognize that every case is covered, and we should assume as much. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147861 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-10Remove unnecessary default cases in switches that cover all enum values.David Blaikie
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147855 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-17The powers that be have decided that LLVM IR should now support 16-bitDan Gohman
"half precision" floating-point with a first-class type. This patch adds basic IR support (but not codegen support). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146786 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-14Per discussion on the list, remove BitcodeVerify pass to reimplement as a ↵Chad Rosier
free function. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146531 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-12Begin sketching out a bitcode verifier pass. Idea is to emit a .bc file andChad Rosier
then read the file back in to verify use-list serialization/deserialization. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146439 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-08Fix 80-column.Chad Rosier
Simplify code. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146112 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-08Fix comments.Chad Rosier
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146109 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-07Fix comments.Chad Rosier
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146107 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-07Begin adding experimental support for preserving use-list ordering of bitcodeChad Rosier
files. First, add a new block USELIST_BLOCK to the bitcode format. This is where USELIST_CODE_ENTRYs will be stored. The format of the USELIST_CODE_ENTRYs have not yet been defined. Add support in the BitcodeReader for parsing the USELIST_BLOCK. Part of rdar://9860654 and PR5680. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146078 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-27remove support for reading llvm 2.9 .bc files. LLVM 3.1 is only compatible ↵Chris Lattner
back to 3.0 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145164 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-03Remove some cruft from the BitcodeWriter, while still maintaining backwardChad Rosier
compatibility in the BitcodeReader. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143598 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-12Initial commit of the 'landingpad' instruction.Bill Wendling
This implements the 'landingpad' instruction. It's used to indicate that a basic block is a landing pad. There are several restrictions on its use (see LangRef.html for more detail). These restrictions allow the exception handling code to gather the information it needs in a much more sane way. This patch has the definition, implementation, C interface, parsing, and bitcode support in it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137501 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-09Representation of 'atomic load' and 'atomic store' in IR.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137170 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-31Add the 'resume' instruction for the new EH rewrite.Bill Wendling
This adds the 'resume' instruction class, IR parsing, and bitcode reading and writing. The 'resume' instruction resumes propagation of an existing (in-flight) exception whose unwinding was interrupted with a 'landingpad' instruction (to be added later). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136589 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-30Revert r136253, r136263, r136269, r136313, r136325, r136326, r136329, r136338,Bill Wendling
r136339, r136341, r136369, r136387, r136392, r136396, r136429, r136430, r136444, r136445, r136446, r136253 pending review. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136556 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-28LangRef and basic memory-representation/reading/writing for 'cmpxchg' andEli Friedman
'atomicrmw' instructions, which allow representing all the current atomic rmw intrinsics. The allowed operands for these instructions are heavily restricted at the moment; we can probably loosen it a bit, but supporting general first-class types (where it makes sense) might get a bit complicated, given how SelectionDAG works. As an initial cut, these operations do not support specifying an alignment, but it would be possible to add if we think it's useful. Specifying an alignment lower than the natural alignment would be essentially impossible to support on anything other than x86, but specifying a greater alignment would be possible. I can't think of any useful optimizations which would use that information, but maybe someone else has ideas. Optimizer/codegen support coming soon. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136404 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-27Merge the contents from exception-handling-rewrite to the mainline.Bill Wendling
This adds the new instructions 'landingpad' and 'resume'. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136253 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-25Initial implementation of 'fence' instruction, the new C++0x-style ↵Eli Friedman
replacement for llvm.memory.barrier. This is just a LangRef entry and reading/writing/memory representation; optimizer+codegen support coming soon. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136009 91177308-0d34-0410-b5e6-96231b3b80d8
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
2011-07-09fix a really bad bug that would cause nested cursors to break,Chris Lattner
used by the new bitcode reader. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134821 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-25Enhance the sanity check for block sizes; check that the resulting pointer isNick Lewycky
pointing to the range [first character, last character] instead of just not after the last character. Patch by Yan Ivnitskiy! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133867 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
2011-06-17Remove 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
2011-04-15Fix 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
2011-04-10Revert 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
2011-03-01Revert PathV2 changes, as sys::fs::unique_file is not finished yet.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126773 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
2011-01-16UnRevert "Revert "Archive: Replace all internal uses of PathV1 with PathV2. ↵Michael J. Spencer
The external API still uses PathV1."" git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123605 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-16Revert "Archive: Replace all internal uses of PathV1 with PathV2. The ↵Michael J. Spencer
external API still uses PathV1." git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123557 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-15Archive: Fix spelling.Michael J. Spencer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123552 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-15Archive: Replace all internal uses of PathV1 with PathV2. The external API ↵Michael J. Spencer
still uses PathV1. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123551 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
2010-10-06Remove tabs.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115764 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
2010-09-10Add 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
2010-09-09Discard 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
2010-09-02Remove obsolete comments about throwing exceptions.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112874 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
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