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* SelectionDAGBuilder: move constant initialization out of loopMehdi Amini2015-01-061-15/+19
| | | | | | | | | | No semantic change intended. Reviewers: resistor Differential Revision: http://reviews.llvm.org/D6834 llvm-svn: 225278
* R600/SI: Add a stub GCNTargetMachineTom Stellard2015-01-06286-310/+355
| | | | | | | | | | | | This is equivalent to the AMDGPUTargetMachine now, but it is the starting point for separating R600 and GCN functionality into separate targets. It is recommened that users start using the gcn triple for GCN-based GPUs, because using the r600 triple for these GPUs will be deprecated in the future. llvm-svn: 225277
* Triple: Add amdgcn tripleTom Stellard2015-01-062-1/+9
| | | | | | | This will be used for AMD GPUs with the Graphics Core Next architecture, which are currently using by the r600 triple. llvm-svn: 225276
* R600/SI: Remove MachineFunction dump from AsmPrinterTom Stellard2015-01-061-17/+12
| | | | | | | The dump was dependent on a feature string, which meant that it couldn't be disabled or enable on a per compile basis. llvm-svn: 225275
* [CodeGenPrepare] Improved logic to speculate calls to cttz/ctlz.Andrea Di Biagio2015-01-062-6/+207
| | | | | | | | | | | | | | | | | | | | | This patch improves the logic added at revision 224899 (see review D6728) that teaches the backend when it is profitable to speculate calls to cttz/ctlz. The original algorithm conservatively avoided speculating more than one instruction from a basic block in a control flow grap modelling an if-statement. In particular, the only allowed instruction (excluding the terminator) was a call to cttz/ctlz. However, there are cases where we could be less conservative and still be able to speculate a call to cttz/ctlz. With this patch, CodeGenPrepare now tries to speculate a cttz/ctlz if the result is zero extended/truncated in the same basic block, and the zext/trunc instruction is "free" for the target. Added new test cases to CodeGen/X86/cttz-ctlz.ll Differential Revision: http://reviews.llvm.org/D6853 llvm-svn: 225274
* Reapply: Teach SROA how to update debug info for fragmented variables.Adrian Prantl2015-01-065-12/+326
| | | | | | | | | | This also rolls in the changes discussed in http://reviews.llvm.org/D6766. Defers migrating the debug info for new allocas until after all partitions are created. Thanks to Chandler for reviewing! llvm-svn: 225272
* Don't loop endlessly for MachO files with 0 ncmdsFilipe Cabecinhas2015-01-064-0/+14
| | | | llvm-svn: 225271
* [Hexagon] Fix 225267. GP register is not yet fully implemented. Removing ↵Colin LeMahieu2015-01-061-2/+2
| | | | | | Uses [GP] maintains existing behavior. llvm-svn: 225270
* Implement a very basic colored syntax highlighting for llvm-dwarfdump.Adrian Prantl2015-01-065-21/+112
| | | | | | | | | | The color scheme is the same as the one used by the colorize dwarfdump script on Darwin. A new --color option can be used to forcibly turn color on or off. http://reviews.llvm.org/D6852 llvm-svn: 225269
* [PowerPC] Add a regression test for r225251Hal Finkel2015-01-061-0/+23
| | | | | | | | In r225251, I removed an old entry from the README.txt file. While there are several contributing factors (including pieces in Clang's ABI code), upon further reflection, the backend part deserves a regression test. llvm-svn: 225268
* [Hexagon] Adding dealloc_return encoding and absolute address stores.Colin LeMahieu2015-01-068-240/+376
| | | | llvm-svn: 225267
* [ARM] Cleanup so_imm* tblgen defintionsAsiri Rathnayake2015-01-062-109/+43
| | | | | | | | | | | No functional changes. Support for ARM's modified immediate syntax was added in r223113 and r223115 (review: D6408). That patch introduced the mod_imm* tblegen definitions which renders the existing so_imm* definitions redundant. This patch gets rid of them completely. Reviewed as: D6722 llvm-svn: 225266
* Convert fcmp with 0.0 from casted integers to icmpMatt Arsenault2015-01-062-4/+488
| | | | | | | | | | | | | | | | | | | This is already handled in general when it is known the conversion can't lose bits with smaller integer types casted into wider floating point types. This pattern happens somewhat often in GPU programs that cast workitem intrinsics to float, which are often compared with 0. Specifically handle the special case of compares with zero which should also be known to not lose information. I had a more general version of this which allows equality compares if the casted float is exactly representable in the integer, but I'm not 100% confident that is always correct. Also fold cases that aren't integers to true / false. llvm-svn: 225265
* [CMake] Silence stderr on "COMMAND ${CMAKE_C_COMPILER} -Wl,--version". It ↵NAKAMURA Takumi2015-01-061-0/+1
| | | | | | was noisy during configuraion. llvm-svn: 225260
* Reformat.NAKAMURA Takumi2015-01-061-2/+4
| | | | llvm-svn: 225259
* [PM] Hide a function we only use in an assert behind NDEBUG.Chandler Carruth2015-01-061-0/+2
| | | | llvm-svn: 225258
* [PM] Introduce a utility pass that preserves no analyses.Chandler Carruth2015-01-063-0/+50
| | | | | | | | | Use this to test that path of invalidation. This test actually shows redundant invalidation here that is really bad. I'm going to work on fixing that next, but wanted to commit the test harness now that its all working. llvm-svn: 225257
* [X86] Add OpSize32 to XBEGIN_4. Add XBEGIN_2 with OpSize16.Craig Topper2015-01-066-9/+47
| | | | | | Requires new AsmParserOperand types that detect 16-bit and 32/64-bit mode so that we choose the right instruction based on default sizing without predicates. This is necessary since predicates mess up the disassembler table building. llvm-svn: 225256
* InstCombine: Bitcast call arguments from/to pointer/integer typeDavid Majnemer2015-01-063-8/+56
| | | | | | | Try harder to get rid of bitcast'd calls by ptrtoint/inttoptr'ing arguments and return values when DataLayout says it is safe to do so. llvm-svn: 225254
* [PM] Simplify how we parse the outer layer of the pass pipeline text andChandler Carruth2015-01-063-28/+50
| | | | | | | | | | | | | | remove an extra, redundant pass manager wrapping every run. I had kept seeing these when manually testing, but it was getting really annoying and was going to cause problems with overly eager invalidation. The root cause was an overly complex and unnecessary pile of code for parsing the outer layer of the pass pipeline. We can instead delegate most of this to the recursive pipeline parsing. I've added some somewhat more basic and precise tests to catch this. llvm-svn: 225253
* [X86] Make isel select the 2-byte register form of INC/DEC even in ↵Craig Topper2015-01-065-126/+78
| | | | | | | | non-64-bit mode. Convert to the 1-byte form in non-64-bit mode as part of MCInst lowering. Overall this seems simpler. It reduces duplication of patterns between both modes and it simplifies the memory folding/unfolding tables as they don't need to create fake instructions just to keep track of 64-bitness. llvm-svn: 225252
* [PowerPC] Remove old README.txt entry regarding struct passingHal Finkel2015-01-061-8/+0
| | | | | | | Because of how Clang represents structs as arrays (at least on non-Darwin platforms), and what SROA does, etc. this is no longer a problem. llvm-svn: 225251
* X86: Don't make illegal GOTTPOFF relocationsDavid Majnemer2015-01-063-0/+25
| | | | | | | | | | | | | "ELF Handling for Thread-Local Storage" specifies that R_X86_64_GOTTPOFF relocation target a movq or addq instruction. Prohibit the truncation of such loads to movl or addl. This fixes PR22083. Differential Revision: http://reviews.llvm.org/D6839 llvm-svn: 225250
* [PowerPC] Add some missing names in getTargetNodeNameHal Finkel2015-01-061-0/+7
| | | | | | These are used for debugging output; NFC. llvm-svn: 225249
* [PowerPC] Improve int_to_fp(fp_to_int(x)) combiningHal Finkel2015-01-063-30/+144
| | | | | | | | | The old target DAG combine that allowed for performing int_to_fp(fp_to_int(x)) without a load/store pair is updated here with support for unsigned integers, and to support single-precision values without a third rounding step, on newer cores with the appropriate instructions. llvm-svn: 225248
* [PM] Add a utility pass template that synthesizes the invalidation ofChandler Carruth2015-01-065-5/+95
| | | | | | | | | | | | | | | | | | | | | | | | | | | a specific analysis result. This is quite handy to test things, and will also likely be very useful for debugging issues. You could narrow down pass validation failures by walking these invalidate pass runs up and down the pass pipeline, etc. I've added support to the pass pipeline parsing to be able to create one of these for any analysis pass desired. Just adding this class uncovered one latent bug where the AnalysisManager CRTP base class had a hard-coded Module type rather than using IRUnitT. I've also added tests for invalidation and caching of analyses in a basic way across all the pass managers. These in turn uncovered two more bugs where we failed to correctly invalidate an analysis -- its results were invalidated but the key for re-running the pass was never cleared and so it was never re-run. Quite nasty. I'm very glad to debug this here rather than with a full system. Also, yes, the naming here is horrid. I'm going to update some of the names to be slightly less awful shortly. But really, I've no "good" ideas for naming. I'll be satisfied if I can get it to "not bad". llvm-svn: 225246
* [PM] Simplify how we use the registry by including it only once. StillChandler Carruth2015-01-061-18/+0
| | | | | | | | | more verbose than I'd like, but the code really isn't that interesting, and this still seems vastly simpler than any other solutions I've come up with. =] Maybe if we get to the 10th IR unit, this will be a problem in practice. llvm-svn: 225245
* [X86] Remove 16-bit and 32-bit offset jump instructions from the AsmParser. ↵Craig Topper2015-01-061-2/+2
| | | | | | We always select the 8-bit size and let the assembler backend relax to the larger size. llvm-svn: 225243
* [X86] Make isel select the shorter form of jump instructions instead of the ↵Craig Topper2015-01-068-120/+97
| | | | | | | | long form. The assembler backend will relax to the long form if necessary. This removes a swap from long form to short form in the MCInstLowering code. Selecting the long form used to be required by the old JIT. llvm-svn: 225242
* [PM] Add a collection of no-op analysis passes and switch the new passChandler Carruth2015-01-064-7/+57
| | | | | | | | | | | | manager tests to use them and be significantly more comprehensive. This, naturally, uncovered a bug where the CGSCC pass manager wasn't printing analyses when they were run. The only remaining core manipulator is I think an invalidate pass similar to the require pass. That'll be next. =] llvm-svn: 225240
* [PM] Sink the no-op pass parsing logic into the .def-based registry toChandler Carruth2015-01-062-21/+3
| | | | | | | | simplify things. This will become more important as I add no-op analyses that want to re-use the logic we already have for analyses in the registry. For now, no functionality changed. llvm-svn: 225238
* [PM] Move the analysis registry into the Passes.cpp file and provideChandler Carruth2015-01-063-12/+46
| | | | | | | | | | | | | | | a normal interface for it in Passes.h. This gives us essentially a single interface for running pass managers which are provided from the bottom of the LLVM stack through interfaces at the top of the LLVM stack that populate them with all of the different analyses available throughout. It also means there is a single blob of code that needs to include all of the pass headers and needs to deal with the registry of passes and parsing names. No functionality changed intended, should just be cleanup. llvm-svn: 225237
* [PM] Add a utility to the new pass manager for generating a pass whichChandler Carruth2015-01-063-4/+66
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | is a no-op other than requiring some analysis results be available. This can be used in real pass pipelines to force the usually lazy analysis running to eagerly compute something at a specific point, and it can be used to test the pass manager infrastructure (my primary use at the moment). I've also added bit of pipeline parsing magic to support generating these directly from the opt command so that you can directly use these when debugging your analysis. The syntax is: require<analysis-name> This can be used at any level of the pass manager. For example: cgscc(function(require<my-analysis>,no-op-function)) This would produce a no-op function pass requiring my-analysis, followed by a fully no-op function pass, both of these in a function pass manager which is nested inside of a bottom-up CGSCC pass manager which is in the top-level (implicit) module pass manager. I have zero attachment to the particular syntax I'm using here. Consider it a straw man for use while I'm testing and fleshing things out. Suggestions for better syntax welcome, and I'll update everything based on any consensus that develops. I've used this new functionality to more directly test the analysis printing rather than relying on the cgscc pass manager running an analysis for me. This is still minimally tested because I need to have analyses to run first! ;] That patch is next, but wanted to keep this one separate for easier review and discussion. llvm-svn: 225236
* Add a testcase that would have found the problem in r225048.Rafael Espindola2015-01-061-0/+27
| | | | llvm-svn: 225235
* Remove dead variable.Eric Christopher2015-01-062-2/+1
| | | | llvm-svn: 225233
* Use the same call off of the TargetMachine rather than the subtarget.Eric Christopher2015-01-061-1/+1
| | | | llvm-svn: 225232
* Rewrite the Mips16HardFloat pass to avoid using the Subtarget.Eric Christopher2015-01-064-26/+18
| | | | llvm-svn: 225231
* Revert r225048: It broke ObjC on AArch64.Lang Hames2015-01-0619-303/+247
| | | | | | I've filed http://llvm.org/PR22100 to track this issue. llvm-svn: 225228
* Remove X86 .quad workaround for buggy GNU assembler on OpenBSD / Bitrig.Brad Smith2015-01-061-5/+0
| | | | llvm-svn: 225227
* IR: Don't drop MDNode uniquing on null operandsDuncan P. N. Exon Smith2015-01-052-7/+22
| | | | | | | | | | Now that `LLVMContextImpl` can call `MDNode::dropAllReferences()` to prevent teardown madness, stop dropping uniquing just because an operand drops to null. Part of PR21532. llvm-svn: 225223
* Revert "Use the integrated assembler by default on 32-bit PowerPC and SPARC"Duncan P. N. Exon Smith2015-01-052-2/+4
| | | | | | | | | This reverts commit r225213. It's failing on multiple buildbots [1][2]. [1]: http://lab.llvm.org:8011/builders/clang-x86_64-debian-fast/builds/22032 [2]: http://lab.llvm.org:8080/green/view/Clang/job/clang-stage1-cmake-RA-incremental_check/2357/ llvm-svn: 225222
* [PowerPC] Fix test to pass on Darwin hostsHal Finkel2015-01-051-1/+3
| | | | llvm-svn: 225220
* [PowerPC] Remove old README.txt entryHal Finkel2015-01-051-10/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | We no longer generate horrible code for the stated function: void f(signed char *a, _Bool b, _Bool c) { signed char t = 0; if (b) t = *a; if (c) *a = t; } for which we now generate: .L.f: andi. 5, 5, 1 cmpldi 1, 4, 0 li 5, 0 beq 1, .LBB0_2 lbz 5, 0(3) .LBB0_2: # %if.end bclr 4, 1, 0 stb 5, 0(3) blr so we don't need the README.txt entry. llvm-svn: 225217
* [X86][SSE] lowerVectorShuffleAsByteShift tidyupSimon Pilgrim2015-01-051-21/+14
| | | | | | Removed local isSequential predicate and use standard helper isSequentialOrUndefInRange instead. llvm-svn: 225216
* [PowerPC] Convert a README.txt entry into a better testHal Finkel2015-01-052-14/+7
| | | | | | | We now produce the desired code as noted in the README.txt file (no spurious or). Remove the README entry and improve the regression test. llvm-svn: 225214
* Use the integrated assembler by default on 32-bit PowerPC and SPARCBrad Smith2015-01-052-4/+2
| | | | llvm-svn: 225213
* [PowerPC] Remove README.txt entryHal Finkel2015-01-051-34/+0
| | | | | | | This entry has been rendered irrelevant now that we have proper CR bit tracking. llvm-svn: 225211
* [Hexagon] Adding add/sub with carry, logical shift left by immediate and ↵Colin LeMahieu2015-01-055-226/+180
| | | | | | memop instructions. Removing old defs without bits and updating references. llvm-svn: 225210
* [PowerPC] Add a test for truncating a shifted loadHal Finkel2015-01-052-18/+18
| | | | | | | We now produce the desired code as noted in the README.txt file. Remove the README entry and add a regression test. llvm-svn: 225209
* Make DIE.h a public CodeGen header.Frederic Riss2015-01-0510-9/+9
| | | | | | | | | | | | | | dsymutil would like to use all the AsmPrinter/MCStreamer infrastructure to stream out the DWARF. In order to do so, it will reuse the DIE object and so this header needs to be public. The interface exposed here has some corners that cannot be used without a DwarfDebug object, but clients that want to stream Dwarf can just avoid these. Differential Revision: http://reviews.llvm.org/D6695 llvm-svn: 225208
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