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path: root/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
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2006-06-28Use hidden visibility to make symbols in an anonymous namespace getChris Lattner
dropped. This shrinks libllvmgcc.dylib another 67K git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28975 91177308-0d34-0410-b5e6-96231b3b80d8
2006-06-15Consistency. EXTRACT_ELEMENT index operand should have ptr type.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28795 91177308-0d34-0410-b5e6-96231b3b80d8
2006-06-12Make sure to update the CFG correctly if a switch only has a default dest.Chris Lattner
This fixes CodeGen/Generic/2006-06-12-LowerSwitchCrash.ll git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28755 91177308-0d34-0410-b5e6-96231b3b80d8
2006-06-08Fix X86/inline-asm.ll:test2, a case where an input value was implicitlyChris Lattner
truncated. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28733 91177308-0d34-0410-b5e6-96231b3b80d8
2006-06-08Fix Regression/CodeGen/X86/inline-asm.ll, a case where inline asm causesChris Lattner
implement extension of a register. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28731 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-26Make CALL node consistent with RET node. Signness of value has type MVT::i32Evan Cheng
instead of MVT::i1. Either is fine except MVT::i32 is probably a legal type for most (if not all) platforms while MVT::i1 is not. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28511 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-26Change RET node to include signness information of the return values. e.g.Evan Cheng
RET chain, value1, sign1, value2, sign2 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28509 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-25CALL node change: now including signness of every argument.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28461 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-23-enable-unsafe-fp-math implies -enable-finite-only-fp-mathEvan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28437 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-23Fix missing includeVladimir Prus
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28435 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-23Incorrect SETCC CondCode used for FP comparisons.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28433 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-17Fix the result of the call to use a correct vbitconvert. There is no need toChris Lattner
use getPackedTypeBreakdown at all here. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28365 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-17Correct a previous patch which broke CodeGen/PowerPC/vec_call.llChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28364 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-17Fixed a LowerCallTo and LowerArguments bug. They were introducing illegalEvan Cheng
VBIT_VECTOR nodes. There were some confusion about the semantics of getPackedTypeBreakdown(). e.g. for <4 x f32> it returns 1 and v4f32, not 4, and f32. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28352 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-16Add support for calls that pass and return legal vectors.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28340 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-16Add a new ISD::CALL node, make the default impl of TargetLowering::LowerCallToChris Lattner
produce it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28338 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-16Add a chain to FORMAL_ARGUMENTS. This is a minimal port of the X86 backend,Chris Lattner
it doesn't currently use/maintain the chain properly. Also, make the X86ISelLowering.cpp file 80-col clean. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28320 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-16Move function-live-in-handling code from the sdisel code to the scheduler.Chris Lattner
This code should be emitted after legalize, so it can't be in sdisel. Note that the EmitFunctionEntryCode hook should be updated to operate on the DAG. The X86 backend is the only one currently using this hook. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28315 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-13Revert an un-intended changeEvan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28278 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-12Remove dead varsChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28255 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-11Refactor scheduler code. Move register-reduction list scheduler to aEvan Cheng
separate file. Added an initial implementation of top-down register pressure reduction list scheduler. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28226 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-08Make emission of jump tables a bit less conservative; they are now requiredNate Begeman
to be only 31.25% dense, rather than 75% dense. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28165 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-06When inserting casts, be careful of where we put them. We cannot insertChris Lattner
a cast immediately before a PHI node. This fixes Regression/CodeGen/Generic/2006-05-06-GEP-Cast-Sink-Crash.ll git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28143 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-05More aggressively sink GEP offsets into loops. For example, before weChris Lattner
generated: movl 8(%esp), %eax movl %eax, %edx addl $4316, %edx cmpb $1, %cl ja LBB1_2 #cond_false LBB1_1: #cond_true movl L_QuantizationTables720$non_lazy_ptr, %ecx movl %ecx, (%edx) movl L_QNOtoQuantTableShift720$non_lazy_ptr, %edx movl %edx, 4460(%eax) ret ... Now we generate: movl 8(%esp), %eax cmpb $1, %cl ja LBB1_2 #cond_false LBB1_1: #cond_true movl L_QuantizationTables720$non_lazy_ptr, %ecx movl %ecx, 4316(%eax) movl L_QNOtoQuantTableShift720$non_lazy_ptr, %ecx movl %ecx, 4460(%eax) ret ... which uses one fewer register. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28129 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-05Sink noop copies into the basic block that uses them. This reduces the numberChris Lattner
of cross-block live ranges, and allows the bb-at-a-time selector to always coallesce these away, at isel time. This reduces the load on the coallescer and register allocator. For example on a codec on X86, we went from: 1643 asm-printer - Number of machine instrs printed 419 liveintervals - Number of loads/stores folded into instructions 1144 liveintervals - Number of identity moves eliminated after coalescing 1022 liveintervals - Number of interval joins performed 282 liveintervals - Number of intervals after coalescing 1304 liveintervals - Number of original intervals 86 regalloc - Number of times we had to backtrack 1.90232 regalloc - Ratio of intervals processed over total intervals 40 spiller - Number of values reused 182 spiller - Number of loads added 121 spiller - Number of stores added 132 spiller - Number of register spills 6 twoaddressinstruction - Number of instructions commuted to coalesce 360 twoaddressinstruction - Number of two-address instructions to: 1636 asm-printer - Number of machine instrs printed 403 liveintervals - Number of loads/stores folded into instructions 1155 liveintervals - Number of identity moves eliminated after coalescing 1033 liveintervals - Number of interval joins performed 279 liveintervals - Number of intervals after coalescing 1312 liveintervals - Number of original intervals 76 regalloc - Number of times we had to backtrack 1.88998 regalloc - Ratio of intervals processed over total intervals 1 spiller - Number of copies elided 41 spiller - Number of values reused 191 spiller - Number of loads added 114 spiller - Number of stores added 128 spiller - Number of register spills 4 twoaddressinstruction - Number of instructions commuted to coalesce 356 twoaddressinstruction - Number of two-address instructions On this testcase, this change provides a modest reduction in spill code, regalloc iterations, and total instructions emitted. It increases the number of register coallesces. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28115 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-03Finish up the initial jump table implementation by allowing jump tables toNate Begeman
not be 100% dense. Increase the minimum threshold for the number of cases in a switch statement from 4 to 6 in order to create a jump table. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28079 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-03Refactor TargetMachine, pushing handling of TargetData into the ↵Owen Anderson
target-specific subclasses. This has one caller-visible change: getTargetData() now returns a pointer instead of a reference. This fixes PR 759. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28074 91177308-0d34-0410-b5e6-96231b3b80d8
2006-04-28Remove the temporary option: -no-isel-fold-inflightEvan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28012 91177308-0d34-0410-b5e6-96231b3b80d8
2006-04-28TargetLowering::LowerArguments should return a VBIT_CONVERT ofEvan Cheng
FORMAL_ARGUMENTS SDOperand in the return result vector. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28009 91177308-0d34-0410-b5e6-96231b3b80d8
2006-04-28Added a temporary option -no-isel-fold-inflight to control whether a "inflight"Evan Cheng
node can be folded. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28003 91177308-0d34-0410-b5e6-96231b3b80d8
2006-04-27Insert a VBIT_CONVERT between a FORMAL_ARGUMENT node and its vector usesEvan Cheng
(VAND, VADD, etc.). Legalizer will assert otherwise. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27991 91177308-0d34-0410-b5e6-96231b3b80d8
2006-04-25Don't forget return void.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27974 91177308-0d34-0410-b5e6-96231b3b80d8
2006-04-23Fix the updating of the machine CFG when a PHI node was in a successor ofNate Begeman
the jump table's range check block. This re-enables 100% dense jump tables by default on PPC & x86 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27952 91177308-0d34-0410-b5e6-96231b3b80d8
2006-04-22Turn of jump tables for a bit, there are still some issues to work out withNate Begeman
updating the machine CFG. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27949 91177308-0d34-0410-b5e6-96231b3b80d8
2006-04-22JumpTable support! What this represents is working asm and jit support forNate Begeman
x86 and ppc for 100% dense switch statements when relocations are non-PIC. This support will be extended and enhanced in the coming days to support PIC, and less dense forms of jump tables. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27947 91177308-0d34-0410-b5e6-96231b3b80d8
2006-04-21The BFS scheduler is apparently nondeterminstic (causes many llvmgcc bootstrapChris Lattner
miscompares). Switch RISC targets to use the list-td scheduler, which isn't. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27933 91177308-0d34-0410-b5e6-96231b3b80d8
2006-04-12Implement support for the formal_arguments node. To get this, targets ↵Chris Lattner
shouldcustom legalize it and remove their XXXTargetLowering::LowerArguments overload git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27604 91177308-0d34-0410-b5e6-96231b3b80d8
2006-04-08Add code generator support for VSELECTChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27542 91177308-0d34-0410-b5e6-96231b3b80d8
2006-04-08Codegen shufflevector as VVECTOR_SHUFFLEChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27529 91177308-0d34-0410-b5e6-96231b3b80d8
2006-04-08Stub out shufflevectorChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27514 91177308-0d34-0410-b5e6-96231b3b80d8
2006-04-05Make a vector live across blocks have the correct Vec type. This fixesChris Lattner
CodeGen/X86/2006-04-04-CrossBlockCrash.ll git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27436 91177308-0d34-0410-b5e6-96231b3b80d8
2006-04-02Intrinsics that just load from memory can be treated like loads: they don'tChris Lattner
have to serialize against each other. This allows us to schedule lvx's across each other, for example. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27346 91177308-0d34-0410-b5e6-96231b3b80d8
2006-04-02Add a new -view-legalize-dags command line optionChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27342 91177308-0d34-0410-b5e6-96231b3b80d8
2006-04-02Prefer larger register classes over smaller ones when a register occurs inChris Lattner
multiple register classes. This fixes PowerPC/2006-04-01-FloatDoubleExtend.ll git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27334 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-31Make sure to pass enough values to phi nodes when we are dealing withChris Lattner
decimated vectors. This fixes UnitTests/Vector/sumarray-dbl.c git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27280 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-31Significantly improve handling of vectors that are live across basic blocks,Chris Lattner
handling cases where the vector elements need promotion, expansion, and when the vector type itself needs to be decimated. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27278 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-29Bug fixes: handle constantexpr insert/extract element operationsChris Lattner
Handle constantpacked vectors with constantexpr elements. This fixes CodeGen/Generic/vector-constantexpr.ll git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27241 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-28More bulletproofing of llvm.dbg.declare.Jim Laskey
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27224 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-28Tblgen doesn't like multiple SDNode<> definitions that map to the sameenum ↵Chris Lattner
value. Split them into separate enums. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27201 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-27Reactivate llvm.dbg.declare.Jim Laskey
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27192 91177308-0d34-0410-b5e6-96231b3b80d8
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