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* [LIT] Add a clang_tools_extra_site_cfg to match the various other site_cfg.David Blaikie2012-09-041-4/+9
| | | | | | | | | This doesn't seem ideal, perhaps we could just keep the llvm_site_cfg and have other config (clang and clang-tools-extra) derive their site_cfg from that. Suggestions/complaints/ideas welcome. llvm-svn: 163171
* Fix my previous patch (r163164). It does now what it is supposed to do:Jakub Staszak2012-09-041-1/+0
| | | | | | Doesn't set MadeChange to TRUE if BypassSlowDivision doesn't change anything. llvm-svn: 163165
* Return false if BypassSlowDivision doesn't change anything.Jakub Staszak2012-09-041-33/+34
| | | | | | | | | | Also a few minor changes: - use pre-inc instead of post-inc - use isa instead of dyn_cast - 80 col - trailing spaces llvm-svn: 163164
* Remove unneeded code.Jakub Staszak2012-09-041-29/+0
| | | | llvm-svn: 163160
* Typo.Jakob Stoklund Olesen2012-09-041-1/+1
| | | | llvm-svn: 163154
* Actually use the MachineOperand field for isRegTiedToDefOperand().Jakob Stoklund Olesen2012-09-042-105/+16
| | | | | | | | | | The MachineOperand::TiedTo field was maintained, but not used. This patch enables it in isRegTiedToDefOperand() and isRegTiedToUseOperand() which are the actual functions use by the register allocator. llvm-svn: 163153
* Move tie checks into MachineVerifier::visitMachineOperand.Jakob Stoklund Olesen2012-09-042-37/+34
| | | | llvm-svn: 163152
* Allow tied uses and defs in different orders.Jakob Stoklund Olesen2012-09-043-42/+100
| | | | | | | | | | | | | | | | After much agonizing, use a full 4 bits of precious MachineOperand space to encode this. This uses existing padding, and doesn't grow MachineOperand beyond its current 32 bytes. This allows tied defs among the first 15 operands on a normal instruction, just like the current MCInstrDesc constraint encoding. Inline assembly needs to be able to tie more than the first 15 operands, and gets special treatment. Tied uses can appear beyond 15 operands, as long as they are tied to a def that's in range. llvm-svn: 163151
* Generic Bypass Slow DivPreston Gurd2012-09-0411-3/+473
| | | | | | | | | | | | | | | | | | | | | | | - CodeGenPrepare pass for identifying div/rem ops - Backend specifies the type mapping using addBypassSlowDivType - Enabled only for Intel Atom with O2 32-bit -> 8-bit - Replace IDIV with instructions which test its value and use DIVB if the value is positive and less than 256. - In the case when the quotient and remainder of a divide are used a DIV and a REM instruction will be present in the IR. In the non-Atom case they are both lowered to IDIVs and CSE removes the redundant IDIV instruction, using the quotient and remainder from the first IDIV. However, due to this optimization CSE is not able to eliminate redundant IDIV instructions because they are located in different basic blocks. This is overcome by calculating both the quotient (DIV) and remainder (REM) in each basic block that is inserted by the optimization and reusing the result values when a subsequent DIV or REM instruction uses the same operands. - Test cases check for the presents of the optimization when calculating either the quotient, remainder, or both. Patch by Tyler Nowicki! llvm-svn: 163150
* Make sure macros in the include subdirectory are not used without being defined.Bob Wilson2012-09-043-4/+4
| | | | | | | | | | | | | | | | Rationale: For each preprocessor macro, either the definedness is what's meaningful, or the value is what's meaningful, or both. If definedness is meaningful, we should use #ifdef. If the value is meaningful, we should use and #ifdef interchangeably for the same macro, seems ugly to me, even if undefined macros are zero if used. This also has the benefit that including an LLVM header doesn't prevent you from compiling with -Wundef -Werror. Patch by John Garvin! <rdar://problem/12189979> llvm-svn: 163148
* Porting Hexagon MI Scheduler to the new API.Sergei Larin2012-09-0411-5/+1381
| | | | | | | Change current Hexagon MI scheduler to use new converging scheduler. Integrates DFA resource model into it. llvm-svn: 163137
* Patch to implement UMLAL/SMLAL instructions for the ARM architectureArnold Schwaighofer2012-09-047-17/+339
| | | | | | | | | | | This patch corrects the definition of umlal/smlal instructions and adds support for matching them to the ARM dag combiner. Bug 12213 Patch by Yin Ma! llvm-svn: 163136
* This patch optimizes shuffle instruction - generates 2 instructions instead ↵Elena Demikhovsky2012-09-042-22/+21
| | | | | | | | | | | | | | | | | | | | of 4. Since this specific shuffle is widely used in many workloads we have ~10% performance on them. shufflevector <8 x float> %A, <8 x float> %B, <8 x i32> <i32 0, i32 8, i32 2, i32 10, i32 4, i32 12, i32 6, i32 14> vmovaps (%rdx), %ymm0 vshufps $8, %ymm0, %ymm0, %ymm0 vmovaps (%rcx), %ymm1 vshufps $8, %ymm0, %ymm1, %ymm1 vunpcklps %ymm0, %ymm1, %ymm0 vmovaps (%rcx), %ymm0 vmovsldup (%rdx), %ymm1 vblendps $85, %ymm0, %ymm1, %ymm0 llvm-svn: 163134
* LICM may hoist an instruction with undefined behavior above a trap.Nadav Rotem2012-09-042-8/+57
| | | | | | | | | | Scan the body of the loop and find instructions that may trap. Use this information when deciding if it is safe to hoist or sink instructions. Notice that we can optimize the search of instructions that may throw in the case of nested loops. rdar://11518836 llvm-svn: 163132
* Fix Android build of gtest and lib/Support.Evgeniy Stepanov2012-09-044-6/+16
| | | | llvm-svn: 163131
* Add support for fetching inlining context (stack of source code locations)Alexey Samsonov2012-09-0412-90/+361
| | | | | | | | | | | by instruction address from DWARF. Add --inlining flag to llvm-dwarfdump to demonstrate and test this functionality, so that "llvm-dwarfdump --inlining --address=0x..." now works much like "addr2line -i 0x...", provided that the binary has debug info (Clang's -gline-tables-only *is* enough). llvm-svn: 163128
* Be conservative about allocations that may alias the accessed pointer.Bob Wilson2012-09-041-0/+3
| | | | | | | | | | If an allocation has a must-alias relation to the access pointer, we treat it as a Def. Otherwise, without this check, the code here was just skipping over the allocation call and ignoring it. I noticed this by inspection and don't have a specific testcase that it breaks, but it seems like we need to treat a may-alias allocation as a Clobber. llvm-svn: 163127
* [ms-inline asm] Make comment more verbose and add an assert.Chad Rosier2012-09-031-1/+2
| | | | llvm-svn: 163125
* [ms-inline asm] Asm operands can map to one or more MCOperands. Therefore, addChad Rosier2012-09-036-11/+33
| | | | | | | the NumMCOperands argument to the GetMCInstOperandNum() function that is set to the number of MCOperands this asm operand mapped to. llvm-svn: 163124
* [ms-inline asm] Add a comment.Chad Rosier2012-09-031-0/+3
| | | | llvm-svn: 163123
* [ms-inline asm] Add an interface to the GetMCInstOperandNum() function in theChad Rosier2012-09-036-6/+40
| | | | | | MCTargetAsmParser class. llvm-svn: 163122
* Remove extraneous return.Chad Rosier2012-09-031-1/+1
| | | | llvm-svn: 163119
* [ms-inline asm] Return the MCOperandNum instead of passing a reference.Chad Rosier2012-09-031-10/+9
| | | | llvm-svn: 163118
* Remove always true checks. Noticed by Adhemerval Zanella.Roman Divacky2012-09-031-2/+2
| | | | llvm-svn: 163117
* Add braces to the case statement.Chad Rosier2012-09-031-1/+2
| | | | llvm-svn: 163116
* IRBuilderify the SjlLjEHPrepare pass.Benjamin Kramer2012-09-031-57/+25
| | | | | | No functionality change. llvm-svn: 163115
* When updating live range endpoints, make sure to preserve the early clobber bit.Lang Hames2012-09-031-2/+2
| | | | | | Fixs PR13719. llvm-svn: 163107
* Fix more fallout from r158919, similar to PR13547.Bob Wilson2012-09-032-2/+21
| | | | | | | | | This code used to only handle malloc-like calls, which do not read memory. r158919 changed it to check isNoAliasFn(), which includes strdup-like and realloc-like calls, but it was not checking for dependencies on the memory read by those calls. llvm-svn: 163106
* Removed unused argument.Chad Rosier2012-09-035-24/+20
| | | | llvm-svn: 163104
* some peepholes that should match horizontal add/sub operations.Chris Lattner2012-09-031-0/+12
| | | | llvm-svn: 163103
* [ms-inline asm] Expose the Kind and Opcode variables from theChad Rosier2012-09-035-17/+34
| | | | | | | | | | MatchInstructionImpl() function. These values are used by the ConvertToMCInst() function to index into the ConversionTable. The values are also needed to call the GetMCInstOperandNum() function. llvm-svn: 163101
* Move ErrorLoc decl into the scope where it's actually used.Chad Rosier2012-09-031-2/+1
| | | | llvm-svn: 163100
* escape special char when handling CXX_FOR_OCAMLOPTNuno Lopes2012-09-021-1/+1
| | | | llvm-svn: 163098
* fix test's RUN linesNuno Lopes2012-09-021-19/+19
| | | | llvm-svn: 163097
* add support for ocaml 3.12Nuno Lopes2012-09-022-0/+6
| | | | llvm-svn: 163096
* replace a couple of single-line comments with /* */ to fix the build of ↵Nuno Lopes2012-09-024-67/+68
| | | | | | stuff depending on the C headers llvm-svn: 163095
* Fix a typo.Nadav Rotem2012-09-021-1/+1
| | | | llvm-svn: 163094
* Not all targets have efficient ISel code generation for select instructions.Nadav Rotem2012-09-024-10/+39
| | | | | | | | | For example, the ARM target does not have efficient ISel handling for vector selects with scalar conditions. This patch adds a TLI hook which allows the different targets to report which selects are supported well and which selects should be converted to CF duting codegen prepare. llvm-svn: 163093
* LoopRotation: Make the brute force DomTree update more brute force.Benjamin Kramer2012-09-022-32/+57
| | | | | | | | | | | | | | We update until we hit a fixpoint. This is probably slow but also slightly simplifies the code. It should also fix the occasional invalid domtrees observed when building with expensive checking. I couldn't find a case where this had a measurable slowdown, but if someone finds a pathological case where it does we may have to find a cleverer way of updating dominators here. Thanks to Duncan for the test case. llvm-svn: 163091
* Rename ANDROIDEABI to Android.Logan Chien2012-09-023-4/+4
| | | | | | | | | | | | | Most of the code guarded with ANDROIDEABI are not ARM-specific, and having no relation with arm-eabi. Thus, it will be more natural to call this environment "Android" instead of "ANDROIDEABI". Note: We are not using ANDROID because several projects are using "-DANDROID" as the conditional compilation flag. llvm-svn: 163087
* Generate better select code by allowing the target to use scalar select, and ↵Nadav Rotem2012-09-022-4/+5
| | | | | | not sign-extend. llvm-svn: 163086
* Only legalise a VSELECT in to bitwise operations if the vector mask bool is ↵Pete Cooper2012-09-011-1/+6
| | | | | | | | | zeros or all ones. A vector bool with just ones isn't suitable for masking with. No test case unfortunately as i couldn't find a target which fit all the conditions needed to hit this code. llvm-svn: 163075
* PR13689: Check for backtrace(3) in the cmake build.Benjamin Kramer2012-09-012-1/+2
| | | | llvm-svn: 163074
* Limit domain conversion to cases where it won't break dep chains.Tim Northover2012-09-011-12/+48
| | | | | | | | NEON domain conversion was too heavy-handed with its widened registers, which could have stripped existing instructions of their dependency, leaving them vulnerable to scheduling errors. llvm-svn: 163070
* Revert "Take account of boolean vector contents when promoting a build ↵Pete Cooper2012-09-012-33/+1
| | | | | | | | | | | | | | vector from i1 to some other type. rdar://problem/12210060" This reverts commit 5dd9e214fb92847e947f9edab170f9b4e52b908f. Thanks to Duncan for explaining how this should have been done. Conflicts: test/CodeGen/X86/vec_select.ll llvm-svn: 163064
* Fix Thumb2 fixup kind in the integrated-as.Logan Chien2012-09-012-0/+27
| | | | llvm-svn: 163063
* Add ARM ELF support to llvm-objdump.Logan Chien2012-09-011-0/+138
| | | | llvm-svn: 163062
* Code cleanup: tools/opt/opt.cppLogan Chien2012-09-011-4/+0
| | | | | | Remove unused local variable. llvm-svn: 163061
* Fix typo.Logan Chien2012-09-011-1/+1
| | | | llvm-svn: 163059
* LoopRotation: Check some invariants of the dominator updating code.Benjamin Kramer2012-09-011-0/+3
| | | | llvm-svn: 163058
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