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path: root/lib/CodeGen/SelectionDAG/LegalizeFloatTypes.cpp
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* Keep TBAA info when rewriting SelectionDAG loads and storesRichard Sandiford2013-10-28
| | | | | | | | | | | | | | | | | | Most SelectionDAG code drops the TBAA info when creating a new form of a load and store (e.g. during legalization, or when converting a plain load to an extending one). This patch tries to catch all cases where the TBAA information can legitimately be carried over. The patch adds alternative forms of getLoad() and getExtLoad() that take a MachineMemOperand instead of individual fields. (The corresponding getTruncStore() already exists.) The idea is to use the MachineMemOperand forms when all fields are carried over (size, pointer info, isVolatile, isNonTemporal, alignment and TBAA info). If some adjustment is being made, e.g. to narrow the load, then we still pass the individual fields but also pass the TBAA info. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193517 91177308-0d34-0410-b5e6-96231b3b80d8
* Add ExpandFloatOp_FCOPYSIGN to handle ppcf128-related expansionsHal Finkel2013-08-19
| | | | | | | | | | We had previously been asserting when faced with a FCOPYSIGN f64, ppcf128 node because there was no way to expand the FCOPYSIGN node. Because ppcf128 is the sum of two doubles, and the first double must have the larger magnitude, we can take the sign from the first double. As a result, in addition to fixing the crash, this is also an optimization. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188655 91177308-0d34-0410-b5e6-96231b3b80d8
* Update makeLibCall to return both the call and the chain associated with the ↵Michael Gottesman2013-08-13
| | | | | | | | | | | | | | | libcall instead of just the call. This allows us to specify libcalls that return void. LowerCallTo returns a pair with the return value of the call as the first element and the chain associated with the return value as the second element. If we lower a call that has a void return value, LowerCallTo returns an SDValue with a NULL SDNode and the chain for the call. Thus makeLibCall by just returning the first value makes it impossible for you to set up the chain so that the call is not eliminated as dead code. I also updated all references to makeLibCall to reflect the new return type. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188300 91177308-0d34-0410-b5e6-96231b3b80d8
* Add ISD::FROUND for libm round()Hal Finkel2013-08-07
| | | | | | | | | | | | | | | All libm floating-point rounding functions, except for round(), had their own ISD nodes. Recent PowerPC cores have an instruction for round(), and so here I'm adding ISD::FROUND so that round() can be custom lowered as well. For the most part, this is straightforward. I've added an intrinsic and a matching ISD node just like those for nearbyint() and friends. The SelectionDAG pattern I've named frnd (because ISD::FP_ROUND has already claimed fround). This will be used by the PowerPC backend in a follow-up commit. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187926 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove trailing whitespace from SelectionDAG/*.cppStephen Lin2013-07-08
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185780 91177308-0d34-0410-b5e6-96231b3b80d8
* Introduce getSelect usage and use more getSelectCCMatt Arsenault2013-06-14
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184012 91177308-0d34-0410-b5e6-96231b3b80d8
* Track IR ordering of SelectionDAG nodes 2/4.Andrew Trick2013-05-25
| | | | | | | Change SelectionDAG::getXXXNode() interfaces as well as call sites of these functions to pass in SDLoc instead of DebugLoc. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182703 91177308-0d34-0410-b5e6-96231b3b80d8
* Add LLVMContext argument to getSetCCResultTypeMatt Arsenault2013-05-18
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182180 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix PR15632: No support for ppcf128 floating-point remainder on PowerPC.Bill Schmidt2013-04-03
| | | | | | | | | For this we need to use a libcall. Previously LLVM didn't implement libcall support for frem, so I've added it in the usual straightforward manner. A test case from the bug report is included. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178639 91177308-0d34-0410-b5e6-96231b3b80d8
* Set properties for f128 type.Akira Hatanaka2013-03-01
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176378 91177308-0d34-0410-b5e6-96231b3b80d8
* Make APFloat constructor require explicit semantics.Tim Northover2013-01-22
| | | | | | | | | Previously we tried to infer it from the bit width size, with an added IsIEEE argument for the PPC/IEEE 128-bit case, which had a default value. This default value allowed bugs to creep in, where it was inappropriate. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173138 91177308-0d34-0410-b5e6-96231b3b80d8
* Refactor to expose RTLIB calls to targets.Tim Northover2013-01-09
| | | | | | | | | | fp128 is almost but not quite completely illegal as a type on AArch64. As a result it needs to have a register class (for argument passing mainly), but all operations need to be lowered to runtime calls. Currently there's no way for targets to do this (without duplicating code), as the relevant functions are hidden in SelectionDAG. This patch changes that. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171971 91177308-0d34-0410-b5e6-96231b3b80d8
* Follow the same routine to add target float expansion hookMichael Liao2012-10-11
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165707 91177308-0d34-0410-b5e6-96231b3b80d8
* Convert assert(0) to llvm_unreachableCraig Topper2012-02-05
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149816 91177308-0d34-0410-b5e6-96231b3b80d8
* Added invariant field to the DAG.getLoad method and changed all calls.Pete Cooper2011-11-08
| | | | | | | When this field is true it means that the load is from constant (runt-time or compile-time) and so can be hoisted from loops or moved around other memory accesses git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@144100 91177308-0d34-0410-b5e6-96231b3b80d8
* Tweak the handling of MERGE_VALUES nodes: remove the need forDuncan Sands2011-09-23
| | | | | | | | | | DecomposeMERGE_VALUES to "know" that results are legalized in a particular order, by passing it the number of the result being legalized (the type legalization core provides this, it just needs to be passed on). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140373 91177308-0d34-0410-b5e6-96231b3b80d8
* Misc cleanup; addresses Duncan's comments on r138877.Eli Friedman2011-08-31
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138887 91177308-0d34-0410-b5e6-96231b3b80d8
* Fill in type legalization for MERGE_VALUES in all the various cases. Patch ↵Eli Friedman2011-08-31
| | | | | | by Micah Villmow. (No testcase because the issue only showed up in an out-of-tree backend.) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138877 91177308-0d34-0410-b5e6-96231b3b80d8
* Silence a bunch (but not all) "variable written but not read" warningsDuncan Sands2011-08-12
| | | | | | | when building with assertions disabled. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137460 91177308-0d34-0410-b5e6-96231b3b80d8
* Add APInt(numBits, ArrayRef<uint64_t> bigVal) constructor to prevent future ↵Jeffrey Yasskin2011-07-18
| | | | | | | | | ambiguity errors like the one corrected by r135261. Migrate all LLVM callers of the old constructor to the new one. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135431 91177308-0d34-0410-b5e6-96231b3b80d8
* Add an intrinsic and codegen support for fused multiply-accumulate. The intentCameron Zwarich2011-07-08
| | | | | | is to use this for architectures that have a native FMA instruction. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134742 91177308-0d34-0410-b5e6-96231b3b80d8
* Allow targets to specify a the type of the RHS of a shift parameterized on ↵Owen Anderson2011-02-25
| | | | | | the type of the LHS. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126518 91177308-0d34-0410-b5e6-96231b3b80d8
* Swap VT and DebugLoc operands of getExtLoad() for consistency withStuart Hastings2011-02-16
| | | | | | | other getNode() methods. Radar 9002173. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125665 91177308-0d34-0410-b5e6-96231b3b80d8
* PR5207: Rename overloaded APInt methods set(), clear(), flip() toJay Foad2010-12-01
| | | | | | setAllBits(), setBit(unsigned), etc. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120564 91177308-0d34-0410-b5e6-96231b3b80d8
* PR5207: Make APInt::set(), APInt::clear() and APInt::flip() return void.Jay Foad2010-11-30
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120413 91177308-0d34-0410-b5e6-96231b3b80d8
* Renaming ISD::BIT_CONVERT to ISD::BITCAST to better reflect the LLVM IR concept.Wesley Peck2010-11-23
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119990 91177308-0d34-0410-b5e6-96231b3b80d8
* update a bunch of code to use the MachinePointerInfo version of getStore.Chris Lattner2010-09-21
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114461 91177308-0d34-0410-b5e6-96231b3b80d8
* eliminate an old SelectionDAG::getTruncStore method, propagatingChris Lattner2010-09-21
| | | | | | | MachinePointerInfo around more. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114452 91177308-0d34-0410-b5e6-96231b3b80d8
* eliminate last SelectionDAG::getLoad old entrypoint, on to stores.Chris Lattner2010-09-21
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114450 91177308-0d34-0410-b5e6-96231b3b80d8
* propagate MachinePointerInfo through various uses of the oldChris Lattner2010-09-21
| | | | | | | SelectionDAG::getExtLoad overload, and eliminate it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114446 91177308-0d34-0410-b5e6-96231b3b80d8
* Convert some tab stops into spaces.Duncan Sands2010-07-12
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108130 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix va_arg for doubles. With this patch VAARG nodes always contain theRafael Espindola2010-07-11
| | | | | | | | | | | | | | | 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. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108072 91177308-0d34-0410-b5e6-96231b3b80d8
* Move getExtLoad() and (some) getLoad() DebugLoc argument after EVT argument ↵Evan Cheng2010-07-07
| | | | | | for consistency sake. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107820 91177308-0d34-0410-b5e6-96231b3b80d8
* Change UpdateNodeOperands' operand and return value from SDValue toDan Gohman2010-06-18
| | | | | | | SDNode *, since it doesn't care about the ResNo value. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106282 91177308-0d34-0410-b5e6-96231b3b80d8
* More 80 violations.Evan Cheng2010-04-15
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101330 91177308-0d34-0410-b5e6-96231b3b80d8
* Turn calls to copysignl into an FCOPYSIGN node. Handle FCOPYSIGN nodesDuncan Sands2010-03-14
| | | | | | | | with ppc_f128 type by having the type legalizer turn these back into a call to copysignl. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98514 91177308-0d34-0410-b5e6-96231b3b80d8
* Make default expansion for FP16 <-> FP32 nodes into libcallsAnton Korobeynikov2010-03-14
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98501 91177308-0d34-0410-b5e6-96231b3b80d8
* Add non-temporal flags and remove an assumption of default arguments.David Greene2010-02-15
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96240 91177308-0d34-0410-b5e6-96231b3b80d8
* Change errs() to dbgs().David Greene2010-01-05
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92573 91177308-0d34-0410-b5e6-96231b3b80d8
* Allow targets to specify the return type of libcalls that are generated for ↵Sanjiv Gupta2009-12-28
| | | | | | floating point comparisons, rather than hard-coding them as i32. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92199 91177308-0d34-0410-b5e6-96231b3b80d8
* Add contexts to some of the MVT APIs. No functionality change yet, just the ↵Owen Anderson2009-08-12
| | | | | | infrastructure work needed to get the contexts to where they need to be first. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78759 91177308-0d34-0410-b5e6-96231b3b80d8
* Split EVT into MVT and EVT, the former representing _just_ a primitive type, ↵Owen Anderson2009-08-11
| | | | | | | | | while the latter is capable of representing either a primitive or an extended type. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78713 91177308-0d34-0410-b5e6-96231b3b80d8
* Rename MVT to EVT, in preparation for splitting SimpleValueType out into its ↵Owen Anderson2009-08-10
| | | | | | own struct type. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78610 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert 77974. It breaks 3 of the ARM tests.Bob Wilson2009-08-03
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77982 91177308-0d34-0410-b5e6-96231b3b80d8
* Allow targets to custom handle softening of results or operands before ↵Sanjiv Gupta2009-08-03
| | | | | | trying the standard stuff. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77974 91177308-0d34-0410-b5e6-96231b3b80d8
* Convert a few more things to use raw_ostream.Dan Gohman2009-07-25
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77039 91177308-0d34-0410-b5e6-96231b3b80d8
* llvm_unreachable->llvm_unreachable(0), LLVM_UNREACHABLE->llvm_unreachable.Torok Edwin2009-07-14
| | | | | | | | | | This adds location info for all llvm_unreachable calls (which is a macro now) in !NDEBUG builds. In NDEBUG builds location info and the message is off (it only prints "UREACHABLE executed"). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75640 91177308-0d34-0410-b5e6-96231b3b80d8
* Convert more assert(0)+abort() -> LLVM_UNREACHABLE,Torok Edwin2009-07-11
| | | | | | | and abort()/exit() -> llvm_report_error(). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75363 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove trailing whitespace. Reorder some methodsDuncan Sands2009-07-08
| | | | | | | and cases alphabetically. No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75001 91177308-0d34-0410-b5e6-96231b3b80d8
* Rename CustomLowerResults to CustomLowerNode, sinceDuncan Sands2009-05-31
| | | | | | | | it is used both when a result is illegal and when an operand is illegal. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72658 91177308-0d34-0410-b5e6-96231b3b80d8
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