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path: root/llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
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* Rewrite the expander for umulo/smulo to remember to sign extend the inputEric Christopher2011-04-201-10/+58
| | | | | | | | | manually and pass all (now) 4 arguments to the mul libcall. Add a new ExpandLibCall for just this (copied gratuitously from type legalization). Fixes rdar://9292577 llvm-svn: 129842
* Delete unnecessary variable. <rdar://problem/7662569>Stuart Hastings2011-04-191-11/+4
| | | | llvm-svn: 129796
* Support nested CALLSEQ_BEGIN/END; necessary for ARM byval support. ↵Stuart Hastings2011-04-191-42/+56
| | | | | | <rdar://problem/7662569> llvm-svn: 129761
* Fix divmod libcall lowering. Convert to {S|U}DIVREM first and then expand ↵Evan Cheng2011-04-161-71/+65
| | | | | | the node to a libcall. rdar://9280991 llvm-svn: 129633
* Fix a ton of comment typos found by codespell. Patch byChris Lattner2011-04-151-1/+1
| | | | | | Luis Felipe Strano Moraes! llvm-svn: 129558
* Revert 123704; it broke threaded LLVM.Stuart Hastings2011-04-051-9/+15
| | | | llvm-svn: 128868
* Issue libcalls __udivmod*i4 / __divmod*i4 for div / rem pairs.Evan Cheng2011-04-011-19/+141
| | | | | | rdar://8911343 llvm-svn: 128696
* Use the correct LHS type when determining the legalization of a shift's RHS ↵Owen Anderson2011-03-071-2/+4
| | | | | | type. llvm-svn: 127163
* Allow targets to specify a the type of the RHS of a shift parameterized on ↵Owen Anderson2011-02-251-20/+29
| | | | | | the type of the LHS. llvm-svn: 126518
* Do not lose debug info of an inlined function argument even if the argument ↵Devang Patel2011-02-181-0/+3
| | | | | | | | is only used through GEPs. This time with a fix that avoids using invalidated DenseMap iterator. llvm-svn: 125984
* Roll out r125794 to help diagnose the llvm-gcc-i386-linux-selfhost failure.Cameron Zwarich2011-02-181-3/+0
| | | | llvm-svn: 125830
* Do not lose debug info of an inlined function argument even if the argument ↵Devang Patel2011-02-171-0/+3
| | | | | | is only used through GEPs. llvm-svn: 125794
* Swap VT and DebugLoc operands of getExtLoad() for consistency withStuart Hastings2011-02-161-18/+18
| | | | | | other getNode() methods. Radar 9002173. llvm-svn: 125665
* Speculatively revert r124380.Devang Patel2011-01-271-3/+0
| | | | llvm-svn: 124397
* While legalizing SDValues do not drop SDDbgValues, trasfer them to new legal ↵Devang Patel2011-01-271-0/+3
| | | | | | | | nodes. Take 2. This includes fix for dragonegg crash. llvm-svn: 124380
* Initialize variable to get rid of clang warning.Bill Wendling2011-01-261-1/+1
| | | | llvm-svn: 124331
* Revert r124302Devang Patel2011-01-261-3/+0
| | | | llvm-svn: 124320
* [AVX] Add INSERT_SUBVECTOR and support it on x86. This provides aDavid Greene2011-01-261-0/+48
| | | | | | | | default implementation for x86, going through the stack in a similr fashion to how the codegen implements BUILD_VECTOR. Eventually this will get matched to VINSERTF128 if AVX is available. llvm-svn: 124307
* While legalizing SDValues do not drop SDDbgValues, trasfer them to new legal ↵Devang Patel2011-01-261-0/+3
| | | | | | nodes. llvm-svn: 124302
* Use only one API at a time.Eric Christopher2011-01-201-2/+1
| | | | llvm-svn: 123866
* If we can, lower the multiply part of a umulo/smulo call to a libcallEric Christopher2011-01-201-8/+27
| | | | | | | | | with an invalid type then split the result and perform the overflow check normally. Fixes the 32-bit parts of rdar://8622122 and rdar://8774702. llvm-svn: 123864
* Remove checking that prevented overlapping CALLSEQ_START/CALLSEQ_ENDStuart Hastings2011-01-181-15/+9
| | | | | | | ranges, add legalizer support for nested calls. Necessary for ARM byval support. Radar 7662569. llvm-svn: 123704
* Add an assert so we don't silently miscompile ctpop for bit widths > 128.Benjamin Kramer2011-01-151-0/+4
| | | | llvm-svn: 123549
* Reimplement CTPOP legalization with the "best" algorithm fromBenjamin Kramer2011-01-151-18/+45
| | | | | | | | | | | | | http://graphics.stanford.edu/~seander/bithacks.html#CountBitsSetParallel In a silly microbenchmark on a 65 nm core2 this is 1.5x faster than the old code in 32 bit mode and about 2x faster in 64 bit mode. It's also a lot shorter, especially when counting 64 bit population on a 32 bit target. I hope this is fast enough to replace Kernighan-style counting loops even when the input is rather sparse. llvm-svn: 123547
* Fix r123346 to handle scalar types too.Dan Gohman2011-01-131-2/+1
| | | | llvm-svn: 123352
* Apply the patch from PR8958, which allows llc to get slightlyDan Gohman2011-01-121-1/+2
| | | | | | further on the associated testcase before aborting. llvm-svn: 123346
* Rename TargetFrameInfo into TargetFrameLowering. Also, put couple of FIXMEs ↵Anton Korobeynikov2011-01-101-2/+2
| | | | | | and fixes here and there. llvm-svn: 123170
* Remove TODO, these appear to be implemented.Eric Christopher2011-01-041-1/+0
| | | | llvm-svn: 122849
* Fix indentation, add comment.Stuart Hastings2010-12-211-4/+6
| | | | llvm-svn: 122345
* Missing logic for nested CALLSEQ_START/END.Stuart Hastings2010-12-211-2/+5
| | | | llvm-svn: 122342
* rename MVT::Flag to MVT::Glue. "Flag" is a terrible name forChris Lattner2010-12-211-1/+1
| | | | | | | something that just glues two nodes together, even if it is sometimes used for flags. llvm-svn: 122310
* Initial support for nested CALLSEQ_START/CALLSEQ_END constructs in LegalizeDAG.Stuart Hastings2010-12-091-8/+24
| | | | | | Necessary for byval support on ARM. Radar 7662569. llvm-svn: 121412
* PR5207: Change APInt methods trunc(), sext(), zext(), sextOrTrunc() andJay Foad2010-12-071-1/+1
| | | | | | | | zextOrTrunc(), and APSInt methods extend(), extOrTrunc() and new method trunc(), to be const and to return a new value instead of modifying the object in place. llvm-svn: 121120
* Remove unneeded zero arrays.Benjamin Kramer2010-12-041-2/+1
| | | | llvm-svn: 120910
* Enable sibling call optimization of libcalls which are expanded duringEvan Cheng2010-11-301-6/+17
| | | | | | | | | | | legalization time. Since at legalization time there is no mapping from SDNode back to the corresponding LLVM instruction and the return SDNode is target specific, this requires a target hook to check for eligibility. Only x86 and ARM support this form of sibcall optimization right now. rdar://8707777 llvm-svn: 120501
* Renaming ISD::BIT_CONVERT to ISD::BITCAST to better reflect the LLVM IR concept.Wesley Peck2010-11-231-29/+29
| | | | llvm-svn: 119990
* Add a pre-dispatch SjLj EH hook on the unwind edge for targets to do anyJim Grosbach2010-10-191-0/+6
| | | | | | | setup they require. Use this for ARM/Darwin to rematerialize the base pointer from the frame pointer when required. rdar://8564268 llvm-svn: 116879
* fix the default va_arg expansion (in the realignment case) to not implicitlyChris Lattner2010-10-101-1/+1
| | | | | | truncate the stack pointer to 32-bits on a 64-bit machine. llvm-svn: 116169
* Use a more efficient lowering of uint64_t --> float that can take advantage ↵Owen Anderson2010-10-051-6/+28
| | | | | | | | | of hardware signed integer conversion without having to do a double cast (uint64_t --> double --> float). This is based on the algorithm from compiler_rt's __floatundisf for X86-64. llvm-svn: 115634
* update a bunch of code to use the MachinePointerInfo version of getStore.Chris Lattner2010-09-211-9/+10
| | | | llvm-svn: 114461
* eliminate an old SelectionDAG::getTruncStore method, propagatingChris Lattner2010-09-211-41/+38
| | | | | | MachinePointerInfo around more. llvm-svn: 114452
* propagate MachinePointerInfo through various uses of the oldChris Lattner2010-09-211-212/+211
| | | | | | SelectionDAG::getExtLoad overload, and eliminate it. llvm-svn: 114446
* continue MachinePointerInfo'izing, eliminating use of one of the oldChris Lattner2010-09-211-95/+104
| | | | | | getLoad overloads. llvm-svn: 114443
* a few more trivial updates. This fixes PerformInsertVectorEltInMemory to notChris Lattner2010-09-211-14/+12
| | | | | | | pass a completely incorrect SrcValue, which would result in a miscompile with combiner-aa. llvm-svn: 114411
* Add a missing check when legalizing a vector extending load. This doesn'tBob Wilson2010-09-031-3/+5
| | | | | | | solve the root problem, but it corrects the bug in the code I added to support legalizing in the case where the non-extended type is also legal. llvm-svn: 112997
* Add a hackaround for PR7993 which is causing failures on x86 builders that ↵Chris Lattner2010-08-261-0/+2
| | | | | | lack sse2. llvm-svn: 112175
* remove some llvmcontext arguments that are now dead post-refactoring.Chris Lattner2010-08-251-2/+1
| | | | llvm-svn: 112104
* Fix some GCC warnings by providing a virtual destructor in the base of a classChandler Carruth2010-08-231-1/+1
| | | | | | | hierarchy with virtual methods and using llvm_unreachable to properly indicate unreachable states which would otherwise leave variables uninitialized. llvm-svn: 111803
* If the target says that an extending load is not legal, regardless of whetherBob Wilson2010-08-191-7/+12
| | | | | | | | | | | it involves specific floating-point types, legalize should expand an extending load to a non-extending load followed by a separate extend operation. For example, we currently expand SEXTLOAD to EXTLOAD+SIGN_EXTEND_INREG (and assert that EXTLOAD should always be supported). Now we can expand that to LOAD+SIGN_EXTEND. This is needed to allow vector SIGN_EXTEND and ZERO_EXTEND to be used for NEON. llvm-svn: 111586
* Fix va_arg for doubles. With this patch VAARG nodes always contain theRafael Espindola2010-07-111-1/+3
| | | | | | | | | | | | | | | correct alignment information, which simplifies ExpandRes_VAARG a bit. The patch introduces a new alignment information to TargetLoweringInfo. This is needed since the two natural candidates cannot be used: * The 's' in target data: If this is set to the minimal alignment of any argument, getCallFrameTypeAlignment would return 4 for doubles on ARM for example. * The getTransientStackAlignment method. It is possible for an architecture to have argument less aligned than what we maintain the stack pointer. llvm-svn: 108072
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