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2013-05-05[docs] Update Target Feature Matrix for the XCore backend.Richard Osborne
Disassembler support has recently been added. Fill in some other unknowns at the same time. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181156 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-05[XCore] Add LDAPB instructions.Richard Osborne
With the change the disassembler now supports the XCore ISA in its entirety. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181155 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-05[XCore] Update LDAP to use pcrel_imm.Richard Osborne
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181154 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-05[XCore] Rename calltarget -> pcrel_imm.Richard Osborne
No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181153 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-05[XCore] Add BLRB instructions.Richard Osborne
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181152 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-05[XCore] Remove '-' from back branch asm syntax.Richard Osborne
Instead operands are treated as negative immediates where the sign bit is implicit in the instruction encoding. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181151 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-05InlineSpiller: Remove quadratic behavior.Benjamin Kramer
No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181149 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-05For ARM backend, fixed "byval" attribute support.Stepan Dyatkovskiy
Now even the small structures could be passed within byval (small enough to be stored in GPRs). In regression tests next function prototypes are checked: PR15293: %artz = type { i32 } define void @foo(%artz* byval %s) define void @foo2(%artz* byval %s, i32 %p, %artz* byval %s2) foo: "s" stored in R0 foo2: "s" stored in R0, "s2" stored in R2. Next AAPCS rules are checked: 5.5 Parameters Passing, C.4 and C.5, "ParamSize" is parameter size in 32bit words: -- NSAA != 0, NCRN < R4 and NCRN+ParamSize > R4. Parameter should be sent to the stack; NCRN := R4. -- NSAA != 0, and NCRN < R4, NCRN+ParamSize < R4. Parameter stored in GPRs; NCRN += ParamSize. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181148 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-05Add missing PatternMatch.cpp to CMakeLists.txtArnold Schwaighofer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181147 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-05PatternMatch: Fix documentation - 'function' not 'attribute'Arnold Schwaighofer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181146 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-05Remove a recently redundant transform from X86ISelLowering.David Majnemer
X86ISelLowering has support to treat: (icmp ne (and (xor %flags, -1), (shl 1, flag)), 0) as if it were actually: (icmp eq (and %flags, (shl 1, flag)), 0) However, r179386 has code at the InstCombine level to handle this. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181145 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-05LoopVectorize: Add support for floating point min/max reductionsArnold Schwaighofer
Add support for min/max reductions when "no-nans-float-math" is enabled. This allows us to assume we have ordered floating point math and treat ordered and unordered predicates equally. radar://13723044 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181144 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-05PatternMatch: Matcher for (un)ordered floating point min/maxArnold Schwaighofer
Add support for matching 'ordered' and 'unordered' floating point min/max constructs. In LLVM we can express min/max functions as a combination of compare and select. We have support for matching such constructs for integers but not for floating point. In floating point math there is no total order because of the presence of 'NaN'. Therefore, we have to be careful to preserve the original fcmp semantics when interpreting floating point compare select combinations as a minimum or maximum function. The resulting 'ordered/unordered' floating point maximum function has to select the same value as the select/fcmp combination it is based on. ordered_max(x,y) = max(x,y) iff x and y are not NaN, y otherwise unordered_max(x,y) = max(x,y) iff x and y are not NaN, x otherwise ordered_min(x,y) = min(x,y) iff x and y are not NaN, y otherwise unordered_min(x,y) = min(x,y) iff x and y are not NaN, x otherwise This matches the behavior of the underlying select(fcmp(olt/ult/.., L, R), L, R) construct. Any code using this predicate has to preserve this semantics. A follow-up patch will use this to implement floating point min/max reductions in the vectorizer. radar://13723044 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181143 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-05LoopVectorizer: Cleanup of miminimum/maximum pattern match codeArnold Schwaighofer
No need for setting the operands. The pointers are going to be bound by the matcher. radar://13723044 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181142 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-05LoopVectorize: We don't need an identity element for min/max reductionsArnold Schwaighofer
We can just use the initial element that feeds the reduction. max(max(x, y), z) == max(max(x,y), max(x,z)) radar://13723044 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181141 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-05Add ArrayRef constructor from None, and do the cleanups that this ↵Dmitri Gribenko
constructor enables Patch by Robert Wilhelm. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181138 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-04whitespaceNadav Rotem
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181137 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-04Fix an odd comment.Nadav Rotem
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181136 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-04AArch64: enable MCJIT and tests now that everything passes.Tim Northover
This removes dire warnings about AArch64 being unsupported and enables the tests when appropriate on this platform. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181135 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-04AArch64: implement 64-bit absolute relocation in MCJITTim Northover
This is about the simplest relocation, but surprisingly rare in actual code. It occurs in (for example) the MCJIT test test-ptr-reloc.ll. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181134 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-04AArch64: add stubs to support long function calls on MCJITTim Northover
As with global accesses, external functions could exist anywhere in memory. Therefore the stub must create a complete 64-bit address. This patch implements the fragment as (roughly): movz x16, #:abs_g3:somefunc movk x16, #:abs_g2_nc:somefunc movk x16, #:abs_g1_nc:somefunc movk x16, #:abs_g0_nc:somefunc br x16 In principle we could save 4 bytes by using a literal-load instead, but it is unclear that would be more efficient and can only be tested when real hardware is readily available. This allows (for example) the MCJIT test 2003-05-07-ArgumentTest to pass on AArch64. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181133 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-04AArch64: implement relocations for global accessTim Northover
The large memory model (default and main viable for JIT) emits addresses in need of relocation as movz x0, #:abs_g3:somewhere movk x0, #:abs_g2_nc:somewhere movk x0, #:abs_g1_nc:somewhere movk x0, #:abs_g0_nc:somewhere To support this we must implement those four relocations in the dynamic loader. This allows (for example) the test-global.ll MCJIT test to pass on AArch64. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181132 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-04AArch64: implement first relocation required for MCJITTim Northover
R_AARCH64_PCREL32 is present in even trivial .eh_frame sections and so is required to compile any function without the "nounwind" attribute. This change implements very basic infrastructure in the RuntimeDyldELF file and allows (for example) the test-shift.ll MCJIT test to pass on AArch64. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181131 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-04Build system changes to enable MCJIT on AArch64Tim Northover
These changes just allow AArch64 to take part in the MCJIT world when built correctly. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181130 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-04AArch64: use __clear_cache under GCCish environmentsTim Northover
AArch64 is going to need some kind of cache-invalidation in order to successfully JIT since it has a weak memory-model. This is provided by a __clear_cache builtin in libgcc, which acts very much like the 32-bit ARM equivalent (on platforms where it exists). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181129 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-04Fix buildbot failure on 64 bit linux due to std::max() having differentRichard Osborne
operand types. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181128 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-04[XCore] Remove unused operand type.Richard Osborne
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181127 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-04[XCore] Make use of the target independent global address offset folding.Richard Osborne
This let us to remove some custom code that matched constant offsets from globals at instruction selection time as a special addressing mode. No intended functionality change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181126 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-04[XCore] Simplify code that checks for an aligned base plus a constant.Richard Osborne
The code now makes use of ComputeMaskedBits, SelectionDAG::isBaseWithConstantOffset and TargetLowering::isGAPlusOffset where appropriate reducing the amount of logic needed in XCoreISelLowering. No intended functionality change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181125 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-04[XCore] Move lowering of thread local storage to a separate pass.Richard Osborne
Thread local storage is not supported by the XMOS linker so we handle thread local variables by lowering the variable to an array of n elements (where n is the number of hardware threads per core, currently 8 for all XMOS devices) indexed by the the current thread ID. Previously this lowering was spread across the XCoreISelLowering and the XCoreAsmPrinter classes. Moving this to a separate pass should be much cleaner. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181124 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-04AArch64: assert code model is small for TLS accessesTim Northover
Supporting TLS in the large memory model is rather difficult at the moment, so make sure no-one gets into difficulties by mistake. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181121 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-04AArch64: support literal pool access in large memory model.Tim Northover
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181120 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-04AArch64: support large code model for jump-tablesTim Northover
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181119 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-04AArch64: implement support for blockaddress in large code modelTim Northover
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181118 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-04AArch64: implement large code model access to global variables.Tim Northover
The MOVZ/MOVK instruction sequence may not be the most efficient (a literal-pool load could be better) but adding that would require reinstating the ConstantIslands pass. For now the sequence is correct, and that's enough. Beware, as of commit GNU ld does not appear to support the relocations needed for this. Its primary purpose (for now) will be to support JITed code, since in that case there is no guarantee of where your code will end up in memory relative to external symbols it references. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181117 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-04[XCore] Use static relocation model by default.Richard Osborne
This allows us to get get rid of a hack in XCoreTargetObjectFile where the the DataRel* sections were overridden. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181116 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-04Allow host triple to be correctly overridden in CMake buildsTim Northover
The intended semantics mirror autoconf, where the user is able to specify a host triple, but if it's left to the build system then "config.guess" is invoked for the default. This also renames the LLVM_HOSTTRIPLE define to LLVM_HOST_TRIPLE to fit in with the style of the surrounding defines. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181112 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-04Optimize llvm-link too.Rafael Espindola
This takes the linking of almost all modules in a clang build from 6:32 to 0:19. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181105 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-04Fix a performance bug in the Linker.Rafael Espindola
Now that we hava a convinient place to keep it, remeber the set of identified structs as we merge modules. This speeds up the linking of all the bitcode files in clang with the gold plugin and -plugin-opt=emit-llvm (i.e., link only, no codegen) from 5:25 minutes to 13.6 seconds! Patch by Xiaofei Wan! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181104 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-04Implement Linker::LinkModules with Linker::linkInModule.Rafael Espindola
Flipping which one is the implementation will let us optimize linkInModule. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181102 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-04Now that Linker.cpp is almost empty, merge it into LinkModules.cpp.Rafael Espindola
Also remove unused includes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181100 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-04Last batch of cleanups to Linker.h.Rafael Espindola
Update comments, fix * placement, fix method names that are not used in clang, add a linkInModule that takes a Mode and put it in Linker.cpp. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181099 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-04Don't construct or delete a module on the Linker.Rafael Espindola
The linker is now responsible only for actually linking the modules, it is up to the clients to create and destroy them. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181098 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-04Don't store the context in the Linker.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181097 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-04Remove unused members and constructor arguments.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181096 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-04Add missing header.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181095 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-04Delete dead code from the linker.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181094 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-04Use consistent function names.Krzysztof Parzyszek
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181090 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-04Tabs to spaces. No functionality change.Nick Lewycky
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181082 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-03Revert r181009.Amara Emerson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181079 91177308-0d34-0410-b5e6-96231b3b80d8
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