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2008-03-19PassInfo keep tracks whether a pass is an analysis pass or not.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48554 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-29Use getPreferredAlignmentLog or getPreferredAlignmentDuncan Sands
to get the alignment of global variables, rather than using hand-made versions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46495 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-10Fix PR1845 and rdar://5676945. Generic vectors smallerChris Lattner
than hardware supported type will be scalarized, so we can infer their alignment from that info. We now codegen pr1845 into: _boolVectorSelect: lbz r2, 0(r3) stb r2, -16(r1) blr git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45796 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-29Remove attribution from file headers, per discussion on llvmdev.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45418 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-21Fix a brain fart by our beloved leader (the contentDuncan Sands
of this patch is the last line). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45289 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-12Remove host endianness info from TargetData andDuncan Sands
put it in a new header System/Host.h instead. Instead of getting the endianness from configure, calculate it directly. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44959 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-11Move TargetData::hostIsLittleEndian out of line, which means we Chris Lattner
don't have to #include config.h in it. #including config.h breaks other projects that have their own autoconf stuff and try to #include the llvm headers. One obscure example is llvm-gcc. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44825 91177308-0d34-0410-b5e6-96231b3b80d8
2007-11-09Silence a warningAnton Korobeynikov
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43954 91177308-0d34-0410-b5e6-96231b3b80d8
2007-11-01Executive summary: getTypeSize -> getTypeStoreSize / getABITypeSize.Duncan Sands
The meaning of getTypeSize was not clear - clarifying it is important now that we have x86 long double and arbitrary precision integers. The issue with long double is that it requires 80 bits, and this is not a multiple of its alignment. This gives a primitive type for which getTypeSize differed from getABITypeSize. For arbitrary precision integers it is even worse: there is the minimum number of bits needed to hold the type (eg: 36 for an i36), the maximum number of bits that will be overwriten when storing the type (40 bits for i36) and the ABI size (i.e. the storage size rounded up to a multiple of the alignment; 64 bits for i36). This patch removes getTypeSize (not really - it is still there but deprecated to allow for a gradual transition). Instead there is: (1) getTypeSizeInBits - a number of bits that suffices to hold all values of the type. For a primitive type, this is the minimum number of bits. For an i36 this is 36 bits. For x86 long double it is 80. This corresponds to gcc's TYPE_PRECISION. (2) getTypeStoreSizeInBits - the maximum number of bits that is written when storing the type (or read when reading it). For an i36 this is 40 bits, for an x86 long double it is 80 bits. This is the size alias analysis is interested in (getTypeStoreSize returns the number of bytes). There doesn't seem to be anything corresponding to this in gcc. (3) getABITypeSizeInBits - this is getTypeStoreSizeInBits rounded up to a multiple of the alignment. For an i36 this is 64, for an x86 long double this is 96 or 128 depending on the OS. This is the spacing between consecutive elements when you form an array out of this type (getABITypeSize returns the number of bytes). This is TYPE_SIZE in gcc. Since successive elements in a SequentialType (arrays, pointers and vectors) need to be aligned, the spacing between them will be given by getABITypeSize. This means that the size of an array is the length times the getABITypeSize. It also means that GEP computations need to use getABITypeSize when computing offsets. Furthermore, if an alloca allocates several elements at once then these too need to be aligned, so the size of the alloca has to be the number of elements multiplied by getABITypeSize. Logically speaking this doesn't have to be the case when allocating just one element, but it is simpler to also use getABITypeSize in this case. So alloca's and mallocs should use getABITypeSize. Finally, since gcc's only notion of size is that given by getABITypeSize, if you want to output assembler etc the same as gcc then getABITypeSize is the size you want. Since a store will overwrite no more than getTypeStoreSize bytes, and a read will read no more than that many bytes, this is the notion of size appropriate for alias analysis calculations. In this patch I have corrected all type size uses except some of those in ScalarReplAggregates, lib/Codegen, lib/Target (the hard cases). I will get around to auditing these too at some point, but I could do with some help. Finally, I made one change which I think wise but others might consider pointless and suboptimal: in an unpacked struct the amount of space allocated for a field is now given by the ABI size rather than getTypeStoreSize. I did this because every other place that reserves memory for a type (eg: alloca) now uses getABITypeSize, and I didn't want to make an exception for unpacked structs, i.e. I did it to make things more uniform. This only effects structs containing long doubles and arbitrary precision integers. If someone wants to pack these types more tightly they can always use a packed struct. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43620 91177308-0d34-0410-b5e6-96231b3b80d8
2007-10-29Fix PR1749 and InstCombine/2007-10-28-EmptyField.ll by handlingChris Lattner
zero-length fields better. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43427 91177308-0d34-0410-b5e6-96231b3b80d8
2007-10-08Simplify getIntPtrType, allowing it to work for arbitrary pointer sizes.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42751 91177308-0d34-0410-b5e6-96231b3b80d8
2007-10-01Add getABITypeSize, getABITypeSizeInBitsDale Johannesen
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42488 91177308-0d34-0410-b5e6-96231b3b80d8
2007-09-21Don't add a default STACK_ALIGN (use the generic ABI alignment)Rafael Espindola
Implement calls to functions with byval arguments on X86 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42192 91177308-0d34-0410-b5e6-96231b3b80d8
2007-09-17Merge DenseMapKeyInfo & DenseMapValueInfo into DenseMapInfoChris Lattner
Add a new DenseMapInfo::isEqual method to allow clients to redefine the equality predicate used when probing the hash table. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42042 91177308-0d34-0410-b5e6-96231b3b80d8
2007-09-07Add support for having different alignment for objects on call frames.Rafael Espindola
The x86-64 ABI states that objects passed on the stack have 8 byte alignment. Implement that. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41768 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-05Fix minor doxygen nits.Reid Spencer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40854 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-03long double patch 2 of N. Handle it in TargetData.Dale Johannesen
(I've tried to get the info right for all targets, but I'm not expert on all of them - check yours.) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40792 91177308-0d34-0410-b5e6-96231b3b80d8
2007-05-03Drop 'const'Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36662 91177308-0d34-0410-b5e6-96231b3b80d8
2007-05-02Use 'static const char' instead of 'static const int'.Devang Patel
Due to darwin gcc bug, one version of darwin linker coalesces static const int, which defauts PassID based pass identification. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36652 91177308-0d34-0410-b5e6-96231b3b80d8
2007-05-02Fix build error.Lauro Ramos Venancio
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36648 91177308-0d34-0410-b5e6-96231b3b80d8
2007-05-01Do not use typeinfo to identify pass in pass manager.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36632 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-22Support alignment queries for degenerate (length 1) vectors.Christopher Lamb
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36352 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-09When the number of elements is zero, don't malloc 32GB on 64-bit systems.Jeff Cohen
Fixes unexpected failures on FreeBSD/amd64 of: CFrontend/2005-09-24-BitFieldCrash.c: CFrontend/2007-02-04-EmptyStruct.c: CFrontend/2007-03-26-ZeroWidthBitfield.c: CodeGen/Generic/2005-10-18-ZeroSizeStackObject.ll: git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35828 91177308-0d34-0410-b5e6-96231b3b80d8
2007-03-05Unbreak VC++ build.Jeff Cohen
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34917 91177308-0d34-0410-b5e6-96231b3b80d8
2007-03-01Wrap a long line.Reid Spencer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34799 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-19Simplify some code by moving variable declarations into the only block thatReid Spencer
uses them. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34432 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-19Implement support for non-standard integer bit widths of any size. TheReid Spencer
rules alignment is to pick the alignment that corresponds to the smallest specified alignment that is larger than the bit width of the type or the largest specified integer alignment if none are larger than the bitwidth of the type. For the byte size, the size returned is the next larger multiple of the alignment for that type (using the above rule). This patch also changes bit widths from "short" to "uint32_t" to ensure there are enough bits to specify any bit width that LLVM can handle (currently 2^23); 16-bits isn't enough. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34431 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-17Do not dereference invalid ranges. Generalize targetdata alignment model.Chris Lattner
This fixes the UnitTests/Vector/sumarray-dbl regressions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34358 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-16Fix CodeGen/PowerPC/2007-02-16-AlignPacked.llChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34356 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-16Remove an unnecessary predicate.Reid Spencer
Patch by Scott Michel. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34354 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-16simplify some code, ensure that packed structures get abi alignment of 1.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34352 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-15For PR1195:Reid Spencer
PACKED_ALIGN -> VECTOR_ALIGN git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34330 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-15For PR1202:Reid Spencer
Make sure we found an existing Alignment before overwriting it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34308 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-15For PR1195:Reid Spencer
Rename PackedType -> VectorType, ConstantPacked -> ConstantVector, and PackedTyID -> VectorTyID. No functional changes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34293 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-15Fixed packed structure breakage from earlier TargetData patch; appliedReid Spencer
Chris Lattner's code style suggestions. Patch by Scott Michel! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34292 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-14Generalize TargetData strings, to support more interesting forms of data.Chris Lattner
Patch by Scott Michel. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34266 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-10Switch LayoutInfo to be a DenseMap instead of an std::map. This speeds upChris Lattner
-load-vn -gcse by 2.3%. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34160 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-10add a typedefChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34159 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-10eliminate the std::vector from StructLayout, allocating the elements immediatelyChris Lattner
after the StructLayout object in memory. This marginally improves locality, speeding up -load-vn -gcse by ~0.8%. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34158 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-10encapsulate the rest of the StructLayout members.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34157 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-10Privatize StructLayout::MemberOffsets, adding an accessorChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34156 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-10Use ManagedStatic to manage LayoutInfo, instead of rolling our own.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34154 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-10Change TargetData::getIndexedOffset interface to not require indicesChris Lattner
in a vector. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34153 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-05Although targets are not required to support integers > 64bits, TargetDataReid Spencer
must in order for backends that do want to support large integer types to be able to function. Consequently, don't assert if the bitwidth > 64 bits when computing the size and alignment. Instead, compute the size by rounding up to the next even number of bytes for the size. Compute the alignment as the same as the LongABIAlignment. These provide reasonable defaults that the target can override. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33943 91177308-0d34-0410-b5e6-96231b3b80d8
2007-01-31Dead comment.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33719 91177308-0d34-0410-b5e6-96231b3b80d8
2007-01-26For PR761:Reid Spencer
The Module::setEndianness and Module::setPointerSize methods have been removed. Instead you can get/set the DataLayout. Adjust thise accordingly. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33530 91177308-0d34-0410-b5e6-96231b3b80d8
2007-01-24Renamed getTypeAlignmentShift() to getPreferredTypeAlignmentShift().Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33482 91177308-0d34-0410-b5e6-96231b3b80d8
2007-01-22- getTypeAlignmentShift() should be returning preferred alignment, not ABIEvan Cheng
alignment. - getPreferredAlignmentLog(): remove Double special case. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33445 91177308-0d34-0410-b5e6-96231b3b80d8
2007-01-20Implement a getTypeSizeInBits method. This helps in transforms that wantReid Spencer
to ensure the bit size of a type is identical before proceeding. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33413 91177308-0d34-0410-b5e6-96231b3b80d8
2007-01-20TargetData assumes (and some regression tests depend on it) that the size ofOwen Anderson
an unspecified datatype in the datalayout is capped by the size of a pointer. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33411 91177308-0d34-0410-b5e6-96231b3b80d8
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