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* Remove unnecessary include of ARMGenInstrInfo.inc.Craig Topper2012-08-171-1/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162086 91177308-0d34-0410-b5e6-96231b3b80d8
* Add ADD and SUB to the predicable ARM instructions.Jakob Stoklund Olesen2012-08-163-0/+51
| | | | | | | | | | It is not my plan to duplicate the entire ARM instruction set with predicated versions. We need a way of representing predicated instructions in SSA form without requiring a separate opcode. Then the pseudo-instructions can go away. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162061 91177308-0d34-0410-b5e6-96231b3b80d8
* Handle ARM MOVCC optimization in PeepholeOptimizer.Jakob Stoklund Olesen2012-08-165-53/+73
| | | | | | Use the target independent select analysis hooks. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162060 91177308-0d34-0410-b5e6-96231b3b80d8
* Add an MCID::Select flag and TII hooks for optimizing selects.Jakob Stoklund Olesen2012-08-161-16/+27
| | | | | | | | | | | | Select instructions pick one of two virtual registers based on a condition, like x86 cmov. On targets like ARM that support predication, selects can sometimes be eliminated by predicating the instruction defining one of the operands. Teach PeepholeOptimizer to recognize select instructions, and ask the target to optimize them. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162059 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert r162034, r162035 and r162037.Roman Divacky2012-08-162-20/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162039 91177308-0d34-0410-b5e6-96231b3b80d8
* Define and handle additional fixup kinds. By Adhemerval Zanella.Roman Divacky2012-08-162-1/+20
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162037 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix typo and grammar. By Adhemerval Zanella.Roman Divacky2012-08-161-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162032 91177308-0d34-0410-b5e6-96231b3b80d8
* Teach GVN to reason about edges dominating uses. This allows it to handle casesRafael Espindola2012-08-162-61/+59
| | | | | | | | | | | | | where some fact lake a=b dominates a use in a phi, but doesn't dominate the basic block itself. This feature could also be implemented by splitting critical edges, but at least with the current algorithm reasoning about the dominance directly is faster. The time for running "opt -O2" in the testcase in pr10584 is 1.003 times slower and on gcc as a single file it is 1.0007 times faster. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162023 91177308-0d34-0410-b5e6-96231b3b80d8
* [arm-fast-isel] Add support for fastcc.Jush Lu2012-08-161-3/+6
| | | | | | | | | Without fastcc support, the caller just falls through to CallingConv::C for fastcc, but callee still uses fastcc, this inconsistency of calling convention is a problem, and fastcc support can fix it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162013 91177308-0d34-0410-b5e6-96231b3b80d8
* Patch to enable FMA on bdver2 target. Make XOP feature enable FMA4 as well.Anitha Boyapati2012-08-161-2/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162012 91177308-0d34-0410-b5e6-96231b3b80d8
* git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162010 ↵Anitha Boyapati2012-08-161-2/+2
| | | | 91177308-0d34-0410-b5e6-96231b3b80d8
* Add Android ABI to Mips backend to handle functions returning vectors of fourAkira Hatanaka2012-08-163-0/+18
| | | | | | | | | floats. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162008 91177308-0d34-0410-b5e6-96231b3b80d8
* Fold predicable instructions into MOVCC / t2MOVCC.Jakob Stoklund Olesen2012-08-155-2/+104
| | | | | | | | | | | | | | The ARM select instructions are just predicated moves. If the select is the only use of an operand, the instruction defining the operand can be predicated instead, saving one instruction and decreasing register pressure. This implementation can turn AND/ORR/EOR instructions into their corresponding ANDCC/ORRCC/EORCC variants. Ideally, we should be able to predicate any instruction, but we don't yet support predicated instructions in SSA form. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161994 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove dead flag.Bill Wendling2012-08-151-9/+3
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161990 91177308-0d34-0410-b5e6-96231b3b80d8
* Fixed a problem in the JIT memory allocator whereSean Callanan2012-08-151-0/+3
| | | | | | | | | | | allocations of executable memory would not be padded to account for the size of the allocation header. This resulted in undersized allocations, meaning that when the allocation was written to later the next allocation's header would be corrupted. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161984 91177308-0d34-0410-b5e6-96231b3b80d8
* Properly test the LLVM_USE_RVALUE_REFERENCES macro.Michael J. Spencer2012-08-152-2/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161978 91177308-0d34-0410-b5e6-96231b3b80d8
* [PathV2] Add mapped_file_region. Implementation for Windows and POSIX.Michael J. Spencer2012-08-152-0/+311
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161976 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix another roundToIntegral bug where very large values could become ↵Owen Anderson2012-08-151-0/+6
| | | | | | infinity. Problem and solution identified by Steve Canon. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161969 91177308-0d34-0410-b5e6-96231b3b80d8
* Use vld1/vst1 to load/store f64 if alignment is < 4 and the target allows ↵Evan Cheng2012-08-154-2/+50
| | | | | | unaligned access. rdar://12091029 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161962 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix typo in comment.Owen Anderson2012-08-151-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161956 91177308-0d34-0410-b5e6-96231b3b80d8
* Add missing Rfalse operand to the predicated pseudo-instructions.Jakob Stoklund Olesen2012-08-153-28/+41
| | | | | | | | | | | | | | | | | | | | | | | When predicating this instruction: Rd = ADD Rn, Rm We need an extra operand to represent the value given to Rd when the predicate is false: Rd = ADDCC Rfalse, Rn, Rm, pred The Rd and Rfalse operands are different registers while in SSA form. Rfalse is tied to Rd to make sure they get the same register during register allocation. Previously, Rd and Rn were tied, but that is not required. Compare to MOVCC: Rd = MOVCC Rfalse, Rtrue, pred git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161955 91177308-0d34-0410-b5e6-96231b3b80d8
* Set the branch probability of branching to the 'normal' destination of an invokeBill Wendling2012-08-151-2/+30
| | | | | | | | | | | instruction to something absurdly high, while setting the probability of branching to the 'unwind' destination to the bare minimum. This should set cause the normal destination's invoke blocks to be moved closer to the invoke. PR13612 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161944 91177308-0d34-0410-b5e6-96231b3b80d8
* [asan] implement --asan-always-slow-path, which is a part of the improvement ↵Kostya Serebryany2012-08-151-2/+5
| | | | | | to handle unaligned partially OOB accesses. See http://code.google.com/p/address-sanitizer/issues/detail?id=100 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161937 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix a problem with APFloat::roundToIntegral where it would return incorrect ↵Owen Anderson2012-08-151-0/+12
| | | | | | results for negative inputs to trunc. Add unit tests to verify this behavior. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161929 91177308-0d34-0410-b5e6-96231b3b80d8
* fix infinite loop in instcombine with more than 4GB memcpyMichael Liao2012-08-151-6/+4
| | | | | | | | | | | | | | - memcpy size is wrongly truncated into 32-bit and treat 8GB memcpy is 0-sized memcpy - as 0-sized memcpy/memset is already removed before SimplifyMemTransfer and SimplifyMemSet in visitCallInst, replace 0 checking with assertions. - replace getZExtValue() with getLimitedValue() according to Eli Friedman git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161923 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix a typo that led to a failure to correctly verify bitcast instructions.Nick Lewycky2012-08-151-1/+1
| | | | | | | Patch by Stephen Hines! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161921 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix undefined behavior: don't perform array indexing through a potentially nullRichard Smith2012-08-151-1/+2
| | | | | | | pointer. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161919 91177308-0d34-0410-b5e6-96231b3b80d8
* The names of VFP variants of half-to-float conversion instructions wereAnton Korobeynikov2012-08-141-7/+7
| | | | | | | | | reversed. This leads to wrong codegen for float-to-half conversion intrinsics which are used to support storage-only fp16 type. NEON variants of same instructions are fine. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161907 91177308-0d34-0410-b5e6-96231b3b80d8
* This needs braces. Spotted by Bill.Eric Christopher2012-08-141-1/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161906 91177308-0d34-0410-b5e6-96231b3b80d8
* minor fix of X86ISD::VSEXT_MOVL dumpMichael Liao2012-08-141-0/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161902 91177308-0d34-0410-b5e6-96231b3b80d8
* fix PR11334Michael Liao2012-08-144-0/+99
| | | | | | | | | | | | | | - FP_EXTEND only support extending from vectors with matching elements. This results in the scalarization of extending to v2f64 from v2f32, which will be legalized to v4f32 not matching with v2f64. - add X86-specific VFPEXT supproting extending from v4f32 to v2f64. - add BUILD_VECTOR lowering helper to recover back the original extending from v4f32 to v2f64. - test case is enhanced to include different vector width. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161894 91177308-0d34-0410-b5e6-96231b3b80d8
* Switch the fixed-length disassembler to be table-driven.Jim Grosbach2012-08-142-419/+437
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Refactor the TableGen'erated fixed length disassemblmer to use a table-driven state machine rather than a massive set of nested switch() statements. As a result, the ARM Disassembler (ARMDisassembler.cpp) builds much more quickly and generates a smaller end result. For a Release+Asserts build on a 16GB 3.4GHz i7 iMac w/ SSD: Time to compile at -O2 (averaged w/ hot caches): Previous: 35.5s New: 8.9s TEXT size: Previous: 447,251 New: 297,661 Builds in 25% of the time previously required and generates code 66% of the size. Execution time of the disassembler is only slightly slower (7% disassembling 10 million ARM instructions, 19.6s vs 21.0s). The new implementation has not yet been tuned, however, so the performance should almost certainly be recoverable should it become a concern. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161888 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix the construction of the magic constant for roundToIntegral to be 64-bit ↵Owen Anderson2012-08-141-2/+2
| | | | | | safe. Fixes c-torture/execute/990826-0.c git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161885 91177308-0d34-0410-b5e6-96231b3b80d8
* [asan] insert crash basic blocks inline as opposed to inserting them at the ↵Kostya Serebryany2012-08-141-30/+27
| | | | | | end of the function. This doesn't seem to fix or break anything, but is considered to be more friendly to downstream passes git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161870 91177308-0d34-0410-b5e6-96231b3b80d8
* Factor duplicate calls to getUNDEF in several functions.Craig Topper2012-08-141-10/+10
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161860 91177308-0d34-0410-b5e6-96231b3b80d8
* Re-factor intrinsic lowering to combine common parts of similar intrinsics. ↵Craig Topper2012-08-141-34/+133
| | | | | | Reduces compiled code size a little bit. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161859 91177308-0d34-0410-b5e6-96231b3b80d8
* Change greater than to greater than or equal so that an identical sized ↵Craig Topper2012-08-141-1/+1
| | | | | | store to the same offset is treated as completing overwriting. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161857 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix undefined behavior: binding null pointer to reference. No functionality ↵Richard Smith2012-08-141-1/+1
| | | | | | change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161853 91177308-0d34-0410-b5e6-96231b3b80d8
* During the CodeGenPrepare we often lower intrinsics (such as objsize)Nadav Rotem2012-08-141-0/+39
| | | | | | | | | | | | | and allow some optimizations to turn conditional branches into unconditional. This commit adds a simple control-flow optimization which merges two consecutive basic blocks which are connected by a single edge. This allows the codegen to operate on larger basic blocks. rdar://11973998 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161852 91177308-0d34-0410-b5e6-96231b3b80d8
* Grammar.Eric Christopher2012-08-141-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161851 91177308-0d34-0410-b5e6-96231b3b80d8
* Typo.Eric Christopher2012-08-141-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161826 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a roundToIntegral method to APFloat, which can be parameterized over ↵Owen Anderson2012-08-133-0/+86
| | | | | | various rounding modes. Use this to implement SelectionDAG constant folding of FFLOOR, FCEIL, and FTRUNC. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161807 91177308-0d34-0410-b5e6-96231b3b80d8
* Transfer weights in transferSuccessorsAndUpdatePHIs().Jakob Stoklund Olesen2012-08-131-5/+7
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161805 91177308-0d34-0410-b5e6-96231b3b80d8
* Print out MachineBasicBlock successor weights when available.Jakob Stoklund Olesen2012-08-131-1/+4
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161804 91177308-0d34-0410-b5e6-96231b3b80d8
* LICM uses AliasSet information to hoist and sink instructions. However, ↵Nadav Rotem2012-08-131-0/+5
| | | | | | | | | | | | | | other passes, such as LoopRotate may invalidate its AliasSet because SSAUpdater does not update the AliasSet properly. This patch teaches SSAUpdater to notify AliasSet that it made changes. The testcase in PR12901 is too big to be useful and I could not reduce it to a normal size. rdar://11872059 PR12901 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161803 91177308-0d34-0410-b5e6-96231b3b80d8
* MemoryDependenceAnalysis attempts to find the first memory dependency for ↵Nadav Rotem2012-08-131-2/+7
| | | | | | | | | | | | | function calls. Currently, if GetLocation reports that it did not find a valid pointer (this is the case for volatile load/stores), we ignore the result. This patch adds code to handle the cases where we did not obtain a valid pointer. rdar://11872864 PR12899 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161802 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove the TII::scheduleTwoAddrSource() hook.Jakob Stoklund Olesen2012-08-133-58/+0
| | | | | | | | | | | | | | | It never does anything when running 'make check', and it get's in the way of updating live intervals in 2-addr. The hook was originally added to help form IT blocks in Thumb2 code before register allocation, but the pass ordering has changed since then, and we run if-conversion after register allocation now. When the MI scheduler is enabled, there will be no less than two schedulers between 2-addr and Thumb2ITBlockPass, so this hook is unlikely to help anything. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161794 91177308-0d34-0410-b5e6-96231b3b80d8
* ARM: enable struct byval for AAPCS-VFP.Manman Ren2012-08-131-0/+3
| | | | | | | | | This change is to be enabled in clang. rdar://9877866 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161789 91177308-0d34-0410-b5e6-96231b3b80d8
* Whitespace cleanup.Bill Wendling2012-08-131-7/+7
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161788 91177308-0d34-0410-b5e6-96231b3b80d8
* Count triangles and diamonds in early if-conversion.Jakob Stoklund Olesen2012-08-131-0/+16
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161783 91177308-0d34-0410-b5e6-96231b3b80d8
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