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path: root/lib/Bitcode/Reader/BitcodeReader.cpp
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2009-04-04Add support for embedded metadata to LLVM. This introduces two new types ofNick Lewycky
Constant, MDString and MDNode which can only be used by globals with a name that starts with "llvm." or as arguments to a function with the same naming restriction. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68420 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-01fix a serious regression I introduced in my previous patch.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68173 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-31reimplement BitcodeReaderValueList in terms of WeakVH instead of makingChris Lattner
it be an LLVM IR User object. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68156 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-23Fix internal representation of fp80 to be theDale Johannesen
same as a normal i80 {low64, high16} rather than its own {high64, low16}. A depressing number of places know about this; I think I got them all. Bitcode readers and writers convert back to the old form to avoid breaking compatibility. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67562 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-11It makes no sense to have a ODR version of commonDuncan Sands
linkage, so remove it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66690 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-11Remove the one-definition-rule version of extern_weakDuncan Sands
linkage: this linkage type only applies to declarations, but ODR is only relevant to globals with definitions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66650 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-07Introduce new linkage types linkonce_odr, weak_odr, common_odrDuncan Sands
and extern_weak_odr. These are the same as the non-odr versions, except that they indicate that the global will only be overridden by an *equivalent* global. In C, a function with weak linkage can be overridden by a function which behaves completely differently. This means that IP passes have to skip weak functions, since any deductions made from the function definition might be wrong, since the definition could be replaced by something completely different at link time. This is not allowed in C++, thanks to the ODR (One-Definition-Rule): if a function is replaced by another at link-time, then the new function must be the same as the original function. If a language knows that a function or other global can only be overridden by an equivalent global, it can give it the weak_odr linkage type, and the optimizers will understand that it is alright to make deductions based on the function body. The code generators on the other hand map weak and weak_odr linkage to the same thing. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66339 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-12Add suppport for ConstantExprs of shufflevectors whose result type is not ↵Nate Begeman
equal to the type of the vectors being shuffled. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64401 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-03fix a bitcode reader bug where it can't handle extractelement correctly:Chris Lattner
the index of the value being extracted is always an i32. This fixes PR3465 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63597 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-15Add the private linkage.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62279 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-19Commit missed files from nocapture change.Nick Lewycky
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61240 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-16Temporarily revert r61019, r61030, and r61040. These were breaking LLVM ReleaseBill Wendling
builds. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61094 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-15Introducing nocapture, a parameter attribute for pointers to indicate that theNick Lewycky
callee will not introduce any new aliases of that pointer. The attributes had all bits allocated already, so I decided to collapse alignment. Alignment was previously stored as a 16-bit integer from bits 16 to 32 of the attribute, but it was required to be a power of 2. Now it's stored in log2 encoded form in five bits from 16 to 21. That gives us 11 more bits of space. You may have already noticed that you only need four bits to encode a 16-bit power of two, so why five bits? Because the AsmParser accepted 32-bit alignments, even though we couldn't store them (they were silently discarded). Now we can store them in memory, but not in the bitcode. The bitcode format was already storing these as 64-bit VBR integers. So, the bitcode format stays the same, keeping the alignment values stored as 16 bit raw values. There's some hideous code in the reader and writer that deals with this, waiting to be ripped out the moment we run out of bits again and have to replace the parameter attributes table encoding. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61019 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-10Added support for the following definition of shufflevector Mon P Wang
<result> = shufflevector <n x <ty>> <v1>, <n x <ty>> <v2>, <m x i32> <mask> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58964 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-05make the autoupgrade code for ret attributes dramatically simpler Chris Lattner
and actually work. We can now read the llvm 2.3 bc file from PR2849 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57122 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-26Now Attributes are divided in three groupsDevang Patel
- return attributes - inreg, zext and sext - parameter attributes - function attributes - nounwind, readonly, readnone, noreturn Return attributes use 0 as the index. Function attributes use ~0U as the index. This patch requires corresponding changes in llvm-gcc and clang. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56704 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-25 Large mechanical patch.Devang Patel
s/ParamAttr/Attribute/g s/PAList/AttrList/g s/FnAttributeWithIndex/AttributeWithIndex/g s/FnAttr/Attribute/g This sets the stage - to implement function notes as function attributes and - to distinguish between function attributes and return value attributes. This requires corresponding changes in llvm-gcc and clang. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56622 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-24s/ParamAttrsWithIndex/FnAttributeWithIndex/gDevang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56535 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-23Use parameter attribute store (soon to be renamed) forDevang Patel
Function Notes also. Function notes are stored at index ~0. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56511 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-16Re-enables the new vector select in the bitcode reader, by modifying theDan Gohman
bitcode reader/writer as follows: - add and use new bitcode FUNC_CODE_INST_VSELECT to handle the llvm select opcode using either i1 or [N x i1] as the selector. - retain old BITCODE FUNC_CODE_INST_SELECT in the bitcode reader to handle select on i1 for backwards compatibility with existing bitcode files. - re-enable the vector-select.ll test program. Also, rename the recently added bitcode opcode FUNC_CODE_INST_VCMP to FUNC_CODE_INST_CMP2 and make the bitcode writer use it to handle fcmp/icmp on scalars or vectors. In the bitcode writer, use FUNC_CODE_INST_CMP for vfcmp/vicmp only. In the bitcode reader, have FUNC_CODE_INST_CMP handle icmp/fcmp returning bool, for backwards compatibility with existing bitcode files. Patch by Preston Gurd! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56233 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-09Temporarily disable vector select in the bitcode reader. TheDan Gohman
way it handles the type of the condition is breaking plain scalar select in the case that the value is a forward-reference. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55976 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-09Extend the vcmp/fcmp LLVM IR instructions to take vectors as argumentsDan Gohman
and, if so, to return a vector of boolean as a result; Extend the select LLVM IR instruction to allow you to specify a result type which is a vector of boolean, in which case the result will be an element-wise selection instead of choosing one vector or the other; and Update LangRef.html to describe these changes. This patch was contributed by Preston Gurd! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55969 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-02Read and write function notes.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55657 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-21Switch from an O(n) method to an O(1) method for changing non-constantChris Lattner
operands. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55127 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-21recommit bcreader, handling packed structs correctly. ApparentlyChris Lattner
people want fast *and* correct. Sheesh. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55102 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-21Revert 55090, regressions in:Daniel Dunbar
- Postgres - llvm-test/SingleSource/UnitTests/{2006-01-23-InitializedBitField, 2004-11-28-GlobalBoolLayout, 2003-05-02-DependentPHI} git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55100 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-21Fix an N^2 issue handling constant resolution due to RAUW in large arraysChris Lattner
this speeds up the bcreader from 6.67s to 0.12s on a testcase Daniel provided. rdar://6158117 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55090 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-17Rename some GC classes so that their roll will hopefully be clearer.Gordon Henriksen
In particular, Collector was confusing to implementors. Several thought that this compile-time class was the place to implement their runtime GC heap. Of course, it doesn't even exist at runtime. Specifically, the renames are: Collector -> GCStrategy CollectorMetadata -> GCFunctionInfo CollectorModuleMetadata -> GCModuleInfo CollectorRegistry -> GCRegistry Function::getCollector -> getGC (setGC, hasGC, clearGC) Several accessors and nested types have also been renamed to be consistent. These changes should be obvious. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54899 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-23Enable first-class aggregates support.Dan Gohman
Remove the GetResultInst instruction. It is still accepted in LLVM assembly and bitcode, where it is now auto-upgraded to ExtractValueInst. Also, remove support for return instructions with multiple values. These are auto-upgraded to use InsertValueInst instructions. The IRBuilder still accepts multiple-value returns, and auto-upgrades them to InsertValueInst instructions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53941 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-21InsertValue and ExtractValue constant expressions are alwaysDan Gohman
folded. Remove code that handled the case where they aren't folded, and remove bitcode reader/writer support for them. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53887 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-09Add a little wrapper header that is put around bc files when emittingChris Lattner
bc files for modules with a target triple that indicates they are for darwin. The reader unconditionally handles this, and the writer could turn this on for more targets if we care. This change has two benefits for darwin: 1) it allows us to encode the cpu type of the file in an easy to read place that doesn't require decoding the bc file. 2) it works around a bug (IMO) in darwin's AR where it is incapable of handling files that are not a multiple of 8 bytes long. BC files are only guaranteed to be multiples of 4 bytes long. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53275 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-31Improved bitcode support for insertvalue/extractvalue.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51822 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-31IR, bitcode reader, bitcode writer, and asmparser changes toDan Gohman
insertvalue and extractvalue to use constant indices instead of Value* indices. And begin updating LangRef.html. There's definately more to come here, but I'm checking this basic support in now to make it available to people who are interested. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51806 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-26eliminate calls to deprecated Use::init() interfaceGabor Greif
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51570 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-23Make structs and arrays first-class types, and add assemblyDan Gohman
and bitcode support for the extractvalue and insertvalue instructions and constant expressions. Note that this does not yet include CodeGen support. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51468 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-16API change for {BinaryOperator|CmpInst|CastInst}::create*() --> Create. ↵Gabor Greif
Legacy interfaces will be in place for some time. (Merge from use-diet branch.) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51200 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-15Fix a bunch of 80col violations that arose from the Create API change. Tweak ↵Gabor Greif
makefile targets to find these better. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51143 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-14Add CommonLinkage; currently tentative definitionsDale Johannesen
are represented as "weak", but there are subtle differences in some cases on Darwin, so we need both. The intent is that "common" will behave identically to "weak" unless somebody changes their target to do something else. No functional change as yet. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51118 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-12Simplify some checksNate Begeman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50998 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-12Pointer comparisons should use icmp, not vicmpNate Begeman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50996 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-12Pointer comparisons should be handled by icmp, not vicmp :)Nate Begeman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50994 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-12Add two new instructions to the llvm IR, vicmp and vfcmp. see updated LangRefNate Begeman
for details. CodeGen support coming in a follow up patch git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50985 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-10merge of use-diet branch to trunkGabor Greif
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50943 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-25Remove 'unwinds to' support from mainline. This patch undoes r47802 r47989Nick Lewycky
r48047 r48084 r48085 r48086 r48088 r48096 r48099 r48109 and r48123. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50265 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-20Switch to using Simplified ConstantFP::get API.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49977 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-13Gabor points out that reserveOperandSpace takes # of values, Chris Lattner
not # of operands as an input. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49599 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-06API changes for class Use size reduction, wave 1.Gabor Greif
Specifically, introduction of XXX::Create methods for Users that have a potentially variable number of Uses. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49277 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-12Reimplement the parameter attributes support, phase #1. hilights:Chris Lattner
1. There is now a "PAListPtr" class, which is a smart pointer around the underlying uniqued parameter attribute list object, and manages its refcount. It is now impossible to mess up the refcount. 2. PAListPtr is now the main interface to the underlying object, and the underlying object is now completely opaque. 3. Implementation details like SmallVector and FoldingSet are now no longer part of the interface. 4. You can create a PAListPtr with an arbitrary sequence of ParamAttrsWithIndex's, no need to make a SmallVector of a specific size (you can just use an array or scalar or vector if you wish). 5. All the client code that had to check for a null pointer before dereferencing the pointer is simplified to just access the PAListPtr directly. 6. The interfaces for adding attrs to a list and removing them is a bit simpler. Phase #2 will rename some stuff (e.g. PAListPtr) and do other less invasive changes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48289 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-12when the bitcode reader is referencing a paramattr, make sure to bump its ↵Chris Lattner
refcount. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48276 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-12Be backward compatibleAnton Korobeynikov
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48268 91177308-0d34-0410-b5e6-96231b3b80d8
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