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* X86 cost model: Differentiate cost for vector shifts of constantsArnold Schwaighofer2013-04-044-0/+892
| | | | | | | | | | | | SSE2 has efficient support for shifts by a scalar. My previous change of making shifts expensive did not take this into account marking all shifts as expensive. This would prevent vectorization from happening where it is actually beneficial. With this change we differentiate between shifts of constants and other shifts. radar://13576547 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178808 91177308-0d34-0410-b5e6-96231b3b80d8
* CostModel: Add parameter to instruction cost to further classify operand valuesArnold Schwaighofer2013-04-046-13/+61
| | | | | | | | | | | | | | | | | | | | | | | | | | | | On certain architectures we can support efficient vectorized version of instructions if the operand value is uniform (splat) or a constant scalar. An example of this is a vector shift on x86. We can efficiently support for (i = 0 ; i < ; i += 4) w[0:3] = v[0:3] << <2, 2, 2, 2> but not for (i = 0; i < ; i += 4) w[0:3] = v[0:3] << x[0:3] This patch adds a parameter to getArithmeticInstrCost to further qualify operand values as uniform or uniform constant. Targets can then choose to return a different cost for instructions with such operand values. A follow-up commit will test this feature on x86. radar://13576547 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178807 91177308-0d34-0410-b5e6-96231b3b80d8
* Debug Info: revert 178722 for now.Manman Ren2013-04-043-15/+4
| | | | | | | | | | | | | | There is a difference for FORM_ref_addr between DWARF 2 and DWARF 3+. Since Eric is against guarding DWARF 2 ref_addr with DarwinGDBCompat, we are still in discussion on how to handle this. The correct solution is to update our header to say version 4 instead of version 2 and update tool chains as well. rdar://problem/13559431 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178806 91177308-0d34-0410-b5e6-96231b3b80d8
* typoAdrian Prantl2013-04-041-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178804 91177308-0d34-0410-b5e6-96231b3b80d8
* Rename the current PPC BCL definition to BCLalwaysHal Finkel2013-04-043-5/+5
| | | | | | | | | | | | BCL is normally a conditional branch-and-link instruction, but has an unconditional form (which is used in the SjLj code, for example). To make clear that this BCL instruction definition is specifically the special unconditional form (which does not meaningfully take a condition-register input), rename it to BCLalways. No functionality change intended. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178803 91177308-0d34-0410-b5e6-96231b3b80d8
* PPC: Improve code generation for mixed-precision reciprocal sqrtHal Finkel2013-04-042-0/+75
| | | | | | | | The DAGCombine logic that recognized a/sqrt(b) and transformed it into a multiplication by the reciprocal sqrt did not handle cases where the sqrt and the division were separated by an fpext or fptrunc. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178801 91177308-0d34-0410-b5e6-96231b3b80d8
* Hexagon: Expand br_cc.Jyotsna Verma2013-04-041-0/+2
| | | | | | | | | | | | | | | It fixes following tests for Hexagon: CodeGen/Generic/2003-07-29-BadConstSbyte.ll CodeGen/Generic/2005-10-21-longlonggtu.ll CodeGen/Generic/2009-04-28-i128-cmp-crash.ll CodeGen/Generic/MachineBranchProb.ll CodeGen/Generic/builtin-expect.ll CodeGen/Generic/pr12507.ll git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178794 91177308-0d34-0410-b5e6-96231b3b80d8
* Reassociate: Avoid iterator invalidation.Benjamin Kramer2013-04-041-7/+12
| | | | | | | | OpndPtrs stored pointers into the Opnd vector that became invalid when the vector grows. Store indices instead. Sadly I only have a large testcase that only triggers under valgrind, so I didn't include it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178793 91177308-0d34-0410-b5e6-96231b3b80d8
* Disable 2010-10-01-crash.ll for Hexagon as the Hexagon frontend willJyotsna Verma2013-04-041-0/+1
| | | | | | | | never produce a byval parameter with size < 8 bytes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178792 91177308-0d34-0410-b5e6-96231b3b80d8
* Add back parsing of header charactestics.Rafael Espindola2013-04-043-1/+43
| | | | | | | | It had been dropped during the switch to yaml::IO. Also add a test going from yaml2obj to llvm-readobj. It can be extended as we add more fields/formats to yaml2obj. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178786 91177308-0d34-0410-b5e6-96231b3b80d8
* [XCore] Add bru instruction.Richard Osborne2013-04-042-0/+6
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178783 91177308-0d34-0410-b5e6-96231b3b80d8
* [XCore] The RRegs register class is a superset of GRRegs.Richard Osborne2013-04-045-34/+94
| | | | | | | | | | At the time when the XCore backend was added there were some issues with with overlapping register classes but these all seem to be fixed now. Describing the register classes correctly allow us to get rid of a codegen only instruction (LDAWSP_lru6_RRegs) and it means we can disassemble ru6 instructions that use registers above r11. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178782 91177308-0d34-0410-b5e6-96231b3b80d8
* Missing wordEli Bendersky2013-04-041-2/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178774 91177308-0d34-0410-b5e6-96231b3b80d8
* Avoid high-latency false CPSR dependencies even for tMOVSi.Jakob Stoklund Olesen2013-04-042-46/+134
| | | | | | | | | | | | | | | | | The Thumb2SizeReduction pass avoids false CPSR dependencies, except it still aggressively creates tMOVi8 instructions because they are so common. Avoid creating false CPSR dependencies even for tMOVi8 instructions when the the CPSR flags are known to have high latency. This allows integer computation to overlap floating point computations. Also process blocks in a reverse post-order and propagate high-latency flags to successors. <rdar://problem/13468102> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178773 91177308-0d34-0410-b5e6-96231b3b80d8
* FormattingEli Bendersky2013-04-041-2/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178771 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert r178713Evan Cheng2013-04-046-29/+13
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178769 91177308-0d34-0410-b5e6-96231b3b80d8
* New-password-test commit.Stepan Dyatkovskiy2013-04-041-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178765 91177308-0d34-0410-b5e6-96231b3b80d8
* R600: Use a mask for offsets when encoding instructionsVincent Lejeune2013-04-041-2/+5
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178763 91177308-0d34-0410-b5e6-96231b3b80d8
* R600: Fix wrong address when substituting ENDIFVincent Lejeune2013-04-041-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178762 91177308-0d34-0410-b5e6-96231b3b80d8
* R600: Take export into account when computing cf addressVincent Lejeune2013-04-042-0/+54
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178761 91177308-0d34-0410-b5e6-96231b3b80d8
* Propagate path to ASan/MSan symbolizer into test environment to produce ↵Alexey Samsonov2013-04-042-0/+10
| | | | | | useful reports on errors. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178749 91177308-0d34-0410-b5e6-96231b3b80d8
* Document the return value of SmallSet insert.Nadav Rotem2013-04-041-0/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178742 91177308-0d34-0410-b5e6-96231b3b80d8
* Add SPARC v9 support for select on 64-bit compares.Jakob Stoklund Olesen2013-04-045-5/+57
| | | | | | | | | | | This requires v9 cmov instructions using the %xcc flags instead of the %icc flags. Still missing: - Select floats on %xcc flags. - Select i64 on %fcc flags. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178737 91177308-0d34-0410-b5e6-96231b3b80d8
* Explicitly add -Wl,--export-all-symbols on mingw/cygwin.Rafael Espindola2013-04-041-0/+3
| | | | | | | Looks like cmake on windows is not expanding ENABLE_EXPORTS to -Wl,--export-all-symbols on mingw or cygwin, so add this back. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178730 91177308-0d34-0410-b5e6-96231b3b80d8
* Don't export symbols in every binary on linux.Rafael Espindola2013-04-044-3/+7
| | | | | | | | | | | | On freebsd this makes sure that symbols are exported on the binaries that need them. The net result is that we should get symbols in the binaries that need them on every platform. On linux x86-64 this reduces the size of the bin directory from 262MB to 250MB. Patch by Stephen Checkoway. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178725 91177308-0d34-0410-b5e6-96231b3b80d8
* Debug Info: according to DWARF 2, FORM_ref_addr the same size as an address onManman Ren2013-04-043-4/+15
| | | | | | | | | | | | the target system. It was hard-coded to 4 bytes before. I can't get llvm to generate a ref_addr on a reasonably sized testing case. rdar://problem/13559431 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178722 91177308-0d34-0410-b5e6-96231b3b80d8
* Refactored out the helper method FindPredecessorAutoreleaseWithSafePath from ↵Michael Gottesman2013-04-031-25/+45
| | | | | | | | ObjCARCOpt::OptimizeReturns. Now ObjCARCOpt::OptimizeReturns is easy to read and reason about. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178715 91177308-0d34-0410-b5e6-96231b3b80d8
* Refactored out the helper function FindPredecessorRetainWithSafePath from ↵Michael Gottesman2013-04-031-18/+32
| | | | | | ObjCARCOpt::OptimizeReturns. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178714 91177308-0d34-0410-b5e6-96231b3b80d8
* Make it possible to include llvm-c without including C++ headers. Patch by ↵Evan Cheng2013-04-036-13/+29
| | | | | | Filip Pizlo. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178713 91177308-0d34-0410-b5e6-96231b3b80d8
* Small cleanups.Michael Gottesman2013-04-031-14/+14
| | | | | | | | Cleaned up trailing whitespace and added extra slashes in front of a function level comment so that it follow the convention of having 3 slashes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178712 91177308-0d34-0410-b5e6-96231b3b80d8
* Refactored out a part of ObjCARCOpt::OptimizeReturns into its own method ↵Michael Gottesman2013-04-031-22/+33
| | | | | | HasSafePathToPredecessorCall. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178710 91177308-0d34-0410-b5e6-96231b3b80d8
* Removed an old comment.Michael Gottesman2013-04-031-7/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178709 91177308-0d34-0410-b5e6-96231b3b80d8
* Clean up arc annotations by moving the top/bottom BB annotations into ↵Michael Gottesman2013-04-031-58/+46
| | | | | | | | conditional macros that no-op in Release mode instead of #ifdef sections of the code. This is to follow the example of the DEBUG macro. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178705 91177308-0d34-0410-b5e6-96231b3b80d8
* X86 cost model: Vector shifts are expensive in most casesArnold Schwaighofer2013-04-035-2/+772
| | | | | | | | | | | | | | The default logic does not correctly identify costs of casts because they are marked as custom on x86. For some cases, where the shift amount is a scalar we would be able to generate better code. Unfortunately, when this is the case the value (the splat) will get hoisted out of the loop, thereby making it invisible to ISel. radar://13130673 radar://13537826 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178703 91177308-0d34-0410-b5e6-96231b3b80d8
* Implement the "mips endian" for r_info.Rafael Espindola2013-04-034-20/+85
| | | | | | | | Normally r_info is just a 32 of 64 bit number matching the endian of the rest of the file. Unfortunately, mips 64 bit little endian is special: The top 32 bits are a little endian number and the following 32 are a big endian one. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178694 91177308-0d34-0410-b5e6-96231b3b80d8
* [XCore] Check disassembly of the st8 instruction.Richard Osborne2013-04-031-0/+3
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178689 91177308-0d34-0410-b5e6-96231b3b80d8
* [XCore] Update disassembler test to improve coverage of the instructions.Richard Osborne2013-04-031-6/+6
| | | | | | | Previously some instructions were unintentionally covered twice and others were not covered at all. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178688 91177308-0d34-0410-b5e6-96231b3b80d8
* Implements low-level object file format specific output for COFF andEric Christopher2013-04-0334-521/+3928
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ELF with support for: - File headers - Section headers + data - Relocations - Symbols - Unwind data (only COFF/Win64) The output format follows a few rules: - Values are almost always output one per line (as elf-dump/coff-dump already do). - Many values are translated to something readable (like enum names), with the raw value in parentheses. - Hex numbers are output in uppercase, prefixed with "0x". - Flags are sorted alphabetically. - Lists and groups are always delimited. Example output: ---------- snip ---------- Sections [ Section { Index: 1 Name: .text (5) Type: SHT_PROGBITS (0x1) Flags [ (0x6) SHF_ALLOC (0x2) SHF_EXECINSTR (0x4) ] Address: 0x0 Offset: 0x40 Size: 33 Link: 0 Info: 0 AddressAlignment: 16 EntrySize: 0 Relocations [ 0x6 R_386_32 .rodata.str1.1 0x0 0xB R_386_PC32 puts 0x0 0x12 R_386_32 .rodata.str1.1 0x0 0x17 R_386_PC32 puts 0x0 ] SectionData ( 0000: 83EC04C7 04240000 0000E8FC FFFFFFC7 |.....$..........| 0010: 04240600 0000E8FC FFFFFF31 C083C404 |.$.........1....| 0020: C3 |.| ) } ] ---------- snip ---------- Relocations and symbols can be output standalone or together with the section header as displayed in the example. This feature set supports all tests in test/MC/COFF and test/MC/ELF (and I suspect all additional tests using elf-dump), making elf-dump and coff-dump deprecated. Patch by Nico Rieck! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178679 91177308-0d34-0410-b5e6-96231b3b80d8
* Don't disassemble symbols with an unknown address or size.Eric Christopher2013-04-031-0/+1
| | | | | | Patch by Nico Rieck! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178678 91177308-0d34-0410-b5e6-96231b3b80d8
* Implement sectionContainsSymbol for ELF.Eric Christopher2013-04-032-3/+13
| | | | | | Patch by Nico Rieck! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178677 91177308-0d34-0410-b5e6-96231b3b80d8
* When dumping clear the arm/thumb flag for now.Eric Christopher2013-04-032-0/+17
| | | | | | Patch by Nico Rieck! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178676 91177308-0d34-0410-b5e6-96231b3b80d8
* R600: Fix last ALU of a clause being emitted in a separate clauseVincent Lejeune2013-04-032-2/+852
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178675 91177308-0d34-0410-b5e6-96231b3b80d8
* Ensuring that both bits are set, and not just a combination of one or the other.Aaron Ballman2013-04-031-1/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178674 91177308-0d34-0410-b5e6-96231b3b80d8
* Cleanup PPC reciprocal-estimate functionalityHal Finkel2013-04-032-61/+47
| | | | | | | Incorporating review feedback from Bill Schmidt on r178617. No functionality change intended. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178672 91177308-0d34-0410-b5e6-96231b3b80d8
* R600: Factorize maximum alu per clause in a single locationVincent Lejeune2013-04-034-2/+6
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178667 91177308-0d34-0410-b5e6-96231b3b80d8
* Testing for Visual Studio 2010 SP1 or greater before calling the _xgetbv ↵Aaron Ballman2013-04-031-2/+2
| | | | | | intrinsic. This also fixes a minor code formatting issue. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178666 91177308-0d34-0410-b5e6-96231b3b80d8
* R600: Simplify data structure and add DEBUG to R600ControlFlowFinalizerVincent Lejeune2013-04-031-20/+21
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178665 91177308-0d34-0410-b5e6-96231b3b80d8
* R600: Consider KILLGT as an ALU instructionVincent Lejeune2013-04-032-3/+4
| | | | | | | Mesa does not override llvm behavior wrt KILLGT anymore so llvm has to handle KILLGT on its own. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178664 91177308-0d34-0410-b5e6-96231b3b80d8
* Measure time that IR parsing took as part of the -time-passes measurement.Eli Bendersky2013-04-032-4/+13
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178662 91177308-0d34-0410-b5e6-96231b3b80d8
* PPC: Enable FRES and FRSQRTE on the default PPC64 descriptionHal Finkel2013-04-031-1/+2
| | | | | | | I discussed this with Bill Schmidt on IRC, and it was decided that this is a safe and reasonable default. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178659 91177308-0d34-0410-b5e6-96231b3b80d8
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