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path: root/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
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2006-03-08remove "Slot", it is deadChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26609 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-05Codegen copysign[f] into a FCOPYSIGN nodeChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26542 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-03Add more vector NodeTypes: VSDIV, VUDIV, VAND, VOR, and VXOR.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26504 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-03remove the read/write port/io intrinsics.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26479 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-01Vector ops lowering.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26436 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-20Fix a problem on itanium with memset. The value to set has been promoted toChris Lattner
i64 before this code, so zero_ext doesn't work. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26290 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-17kill ADD_PARTS & SUB_PARTS and replace them with fancy new ADDC, ADDE, SUBCNate Begeman
and SUBE nodes that actually expose what's going on and allow for significant simplifications in the targets. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26255 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-17Fix another miscompilation exposed by lencode, where we lowered i64->f32Chris Lattner
conversions to __floatdidf instead of __floatdisf on targets that support f32 but not i64 (e.g. sparc). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26254 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-15Should not combine ISD::LOCATIONs until we have scheme to remove fromJim Laskey
MachineDebugInfo tables. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26216 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-14Fix a latent bug in the call sequence handling stuff. Some targets (e.g. x86)Chris Lattner
create these nodes with flag results. Remember that we legalized them. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26156 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-13Completely rewrite libcall insertion by the legalizer, providing theChris Lattner
following handy-dandy properties: 1. it is always correct now 2. it is much faster than before 3. it is easier to understand This implementation builds off of the recent simplifications of the legalizer that made it single-pass instead of iterative. This fixes JM/lencod, JM/ldecod, and CodeGen/Generic/2006-02-12-InsertLibcall.ll (at least on PPC). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26144 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-01*** empty log message ***Nate Begeman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25879 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-01Fix some of the stuff in the PPC README file, and clean up legalizationNate Begeman
of the SELECT_CC, BR_CC, and BRTWOWAY_CC nodes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25875 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-31Allow custom lowering of fabs. I forgot to check in this change whichEvan Cheng
caused several test failures. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25852 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-31Only insert an AND when converting from BR_COND to BRCC if needed.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25832 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-30Fix a bug in my legalizer reworking that caused the X86 backend to not getChris Lattner
a chance to custom legalize setcc, which broke a bunch of C++ Codes. Testcase here: CodeGen/X86/2006-01-30-LongSetcc.ll git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25821 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-30don't insert an and node if it isn't needed here, this can prevent foldingChris Lattner
of lowered target nodes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25804 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-29Fix RET of promoted values on targets that custom expand RET to a target node.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25794 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-29cleanups to the ValueTypeActions interfaceChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25785 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-29Remove some special case hacks for CALLSEQ_*, using UpdateNodeOperandsChris Lattner
instead. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25780 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-29Allow custom expansion of ConstantVec nodes. PPC will use this in the future.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25774 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-29Legalize ConstantFP into TargetConstantFP when the target allows. ImplementChris Lattner
custom expansion of ConstantFP nodes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25772 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-29eliminate uses of SelectionDAG::getBR2Way_CCChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25767 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-28Use the new "UpdateNodeOperands" method to simplify LegalizeDAG and make itChris Lattner
faster. This cuts about 120 lines of code out of the legalizer (mostly code checking to see if operands have changed). It also fixes an ugly performance issue, where the legalizer cloned the entire graph after any change. Now the "UpdateNodeOperands" method gives it a chance to reuse nodes if the operands of a node change but not its opcode or valuetypes. This speeds up instruction selection time on kimwitu++ by about 8.2% with a release build. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25746 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-28minor tweaksChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25740 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-28move a bunch of code, no other change.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25739 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-28remove a couple more now-extraneous legalizeop'sChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25738 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-28fix a bugChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25737 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-28Several major changes:Chris Lattner
1. Pull out the expand cases for BSWAP and CT* into a separate function, reducing the size of LegalizeOp. 2. Fix a bug where expand(bswap i64) was wrong when i64 is legal. 3. Changed LegalizeOp/PromoteOp so that the legalizer never needs to be iterative. It now operates in a single pass over the nodes. 4. Simplify a LOT of code, with a net reduction of ~280 lines. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25736 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-28Eliminate the need for ExpandOp to set 'needsanotheriteration', as it alreadyChris Lattner
relegalizes the stuff it returns. Add the ability to custom expand ADD/SUB, so that targets don't need to deal with ADD_PARTS/SUB_PARTS if they don't want. Fix some obscure potential bugs and simplify code. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25732 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-28Instead of making callers of ExpandLibCall legalize the result, makeChris Lattner
ExpandLibCall do it itself. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25731 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-28Eliminate the need to do another iteration of the legalizer after insertingChris Lattner
a libcall. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25730 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-28Implement Promote for VAARG, and allow it to be custom promoted for peopleNate Begeman
who don't want the default behavior (Alpha). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25726 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-28Remove the ISD::CALL and ISD::TAILCALL nodesChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25721 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-26initial selectiondag support for new INLINEASM node. Note that inline asmsChris Lattner
with outputs or inputs are not supported yet. :) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25664 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-25First part of bug 680:Nate Begeman
Remove TLI.LowerVA* and replace it with SDNodes that are lowered the same way as everything else. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25606 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-24Fix an infinite loop I caused by making sure to legalize the flag operandChris Lattner
of CALLSEQ_* nodes git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25582 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-23Fix Regression/CodeGen/SparcV8/2006-01-22-BitConvertLegalize.ll by makingChris Lattner
sure that the result of expanding a BIT_CONVERT node is itself legalized. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25538 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-21Fix CodeGen/PowerPC/2006-01-20-ShiftPartsCrash.llChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25496 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-20remove some unintentionally committed codeChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25483 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-20If the target doesn't support f32 natively, insert the FP_EXTEND in target-indepChris Lattner
code, so that the LowerReturn code doesn't have to handle it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25482 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-19Another typoEvan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25440 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-18was ignoring the legalized chain in this case, fixed SPASS on alphaAndrew Lenharth
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25428 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-17Bug fix: missing LegalizeOp() on newly created nodes.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25401 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-17Adding basic support for Dwarf line number debug information.Jim Laskey
I promise to keep future commits smaller. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25396 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-16Expand case for 64b Legalize, even though no one should end up using thisNate Begeman
(itanium supports bswap natively, alpha should custom lower it using the VAX floating point swapload, ha ha). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25356 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-15Allow the target to specify 'expand' if they just require the amount toChris Lattner
be subtracted from the stack pointer. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25331 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-15Fix custom lowering of dynamic_stackallocChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25329 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-14Token chain results are not always the first or last result. Consider ↵Chris Lattner
copyfromreg nodes, where they are the middle result (the flag result is last) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25325 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-14bswap implementationNate Begeman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25312 91177308-0d34-0410-b5e6-96231b3b80d8
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