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2010-03-15SIGN_EXTEND from the same type as the dest is valid.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98548 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-15sink the call to VT.getSizeInBits() down into its uses,Chris Lattner
not all unary nodes necessarily have a simple result type. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98547 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-14Turn calls to copysignl into an FCOPYSIGN node. Handle FCOPYSIGN nodesDuncan Sands
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
2010-03-14Rename SDDbgValue.h to SDNodeDbgValue.h for consistency.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98513 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-14fix ShrinkDemandedOps to not leave dead nodes around,Chris Lattner
fixing PR6607 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98512 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-14rewrite ShrinkDemandedOps to be faster and indent less,Chris Lattner
no functionality change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98511 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-14make -view-isel-dags print after the 'ShrinkDemandedOps' pass.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98509 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-14Make default expansion for FP16 <-> FP32 nodes into libcallsAnton Korobeynikov
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98501 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-14Add DAG nodes to represent FP16 <-> FP32 intrinsicsAnton Korobeynikov
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98500 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-14fix AsmPrinter::GetBlockAddressSymbol to always return a uniqueChris Lattner
label instead of trying to form one based on the BB name (which causes collisions if the name is empty). This fixes PR6608 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98495 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-14get MMI out of the label uniquing business, just go to MCContextChris Lattner
to get unique assembler temporary labels. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98489 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-14change the LabelSDNode to be EHLabelSDNode and make it holdChris Lattner
an MCSymbol. Make the EH_LABEL MachineInstr hold its label with an MCSymbol instead of ID. Fix a bug in MMI.cpp which would return labels named "Label4" instead of "label4". git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98463 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-14change EH related stuff (other than EH_LABEL) to use MCSymbolChris Lattner
instead of label ID's. This cleans up and regularizes a bunch of code and makes way for future progress. Unfortunately, this pointed out to me that JITDwarfEmitter.cpp is largely copy and paste from DwarfException/MachineModuleInfo and other places. This is very sad and disturbing. :( One major change here is that TidyLandingPads moved from being called in DwarfException::BeginFunction to being called in DwarfException::EndFunction. There should not be any functionality change from doing this, but I'm not an EH expert. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98459 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-12Revert turning copysignl into a COPYSIGN node for the moment:Duncan Sands
ppc calls copysignl with a 128 bit ppc long double, resulting in a node that the type legalizer doesn't know how to expand. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98357 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-12Now that it's supported, turn copysignl into a COPYSIGN node.Duncan Sands
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98348 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-12Fix PR6522: implement copysign expansion for x86 long doubleDuncan Sands
(it seems that FreeBSD doesn't have copysignl). Done by removing a bunch of assumptions from the code. This may also help with sparc 128 bit floats. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98346 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-12fix PR6577, a bug in sdbuilder lowering select instructionsChris Lattner
whose true value was not Val#0. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98336 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-11Remove getWidenVectorType, which is no longer used.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98289 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-11In case of tail call size of Ins and InVals may not match.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98277 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-11Remove dead include.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98225 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-10fix PR6533 by updating the br(xor) code to remember the caseChris Lattner
when it looked past a trunc. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98203 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-10Cosmetic: lengthen names and improve comments.Dale Johannesen
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98202 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-10Progress towards shepherding debug info through SelectionDAG.Dale Johannesen
No functional effect yet. This is still evolving and should not be viewed as final. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98195 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-10Fix another bitwidth calculation to handle vector types; based on aDan Gohman
patch by Micah Villmow for PR6572. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98188 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-09Attempt to make this debug output meaningful, both in the case ofDan Gohman
multibyte opcodes and in the case of multiple scopes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98036 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-09Print the correct index in the "match failed at index" message.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98013 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-08Add Order to SDDbgValueDale Johannesen
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97939 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-07Use Other as a sentinel instead of iAny.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97914 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-06Add some new bits of debug info handling. NoDale Johannesen
functional change yet. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97855 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-06Reapply r97778 and r97779, enabled only for unsigned i64 to f64Dan Gohman
conversions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97854 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-05Avoid creating bad PHI instructions when BR is being const-folded.Jakob Stoklund Olesen
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97836 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-05Fix PR6497, a bug where we'd fold a load into an addcChris Lattner
node which has a flag. That flag in turn was used by an already-selected adde which turned into an ADC32ri8 which used a selected load which was chained to the load we folded. This flag use caused us to form a cycle. Fix this by not ignoring chains in IsLegalToFold even in cases where the isel thinks it can. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97791 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-05inline a small function with one call site.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97789 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-05Revert r97778 and r97779. They're somehow breaking llvm-gcc builds.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97781 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-05Fix these constants to be more portable.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97779 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-05Rewrite i64-to-f64 conversion using an algorithm which handlesDan Gohman
rounding correctly. This implementation is a generalization of the x86_64 code in compiler-rt. This fixes rdar://7683708. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97778 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-04add a statistic for # times fastisel fails.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97738 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-04Fix a typo Duncan noticed.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97735 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-04change the new isel matcher to emit ComplexPattern matchesChris Lattner
as the very last thing before node emission. This should dramatically reduce the number of times we do 'MatchAddress' on X86, speeding up compile time. This also improves comments in the tables and shrinks the table a bit, now down to 80506 bytes for x86. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97703 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-04Fix more code to work properly with vector operands. Based onDan Gohman
a patch my Micah Villmow for PR6465. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97692 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-04inline CannotYetSelectIntrinsic into CannotYetSelect and simplify.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97690 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-03Fix a bug in SelectionDAG's ReplaceAllUsesWith in the case whereDan Gohman
CSE and recursive RAUW calls delete a node from the use list, invalidating the use list iterator. There's currently no known way to reproduce this in an unmodified LLVM, however there's no fundamental reason why a SelectionDAG couldn't be formed which would trigger this case. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97665 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-03add some of the more obscure predicate types to the Chris Lattner
Scope accelerator. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97652 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-03speed up scope node processing: if the first element of a scopeChris Lattner
entry we're about to process is obviously going to fail, don't bother pushing a scope only to have it immediately be popped. This avoids a lot of scope stack traffic in common cases. Unfortunately, this requires duplicating some of the predicate dispatch. To avoid duplicating the actual logic I pulled each predicate out to its own static function which gets used in both places. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97651 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-03introduce a new SwitchTypeMatcher node (which is analogous toChris Lattner
SwitchOpcodeMatcher) and have DAGISelMatcherOpt form it. This speeds up selection, particularly for X86 which has lots of variants of instructions with only type differences. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97645 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-03Use APInt instead of zext value.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97631 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-03This test case:Bill Wendling
long test(long x) { return (x & 123124) | 3; } Currently compiles to: _test: orl $3, %edi movq %rdi, %rax andq $123127, %rax ret This is because instruction and DAG combiners canonicalize (or (and x, C), D) -> (and (or, D), (C | D)) However, this is only profitable if (C & D) != 0. It gets in the way of the 3-addressification because the input bits are known to be zero. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97616 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-02Fix some issues in WalkChainUsers dealing with Chris Lattner
CopyToReg/CopyFromReg/INLINEASM. These are annoying because they have the same opcode before an after isel. Fix this by setting their NodeID to -1 to indicate that they are selected, just like what automatically happens when selecting things that end up being machine nodes. With that done, give IsLegalToFold a new flag that causes it to ignore chains. This lets the HandleMergeInputChains routine be the one place that validates chains after a match is successful, enabling the new hotness in chain processing. This smarter chain processing eliminates the need for "PreprocessRMW" in the X86 and MSP430 backends and enables MSP to start matching it's multiple mem operand instructions more aggressively. I currently #if out the dead code in the X86 backend and MSP backend, I'll remove it for real in a follow-on patch. The testcase changes are: test/CodeGen/X86/sse3.ll: we generate better code test/CodeGen/X86/store_op_load_fold2.ll: PreprocessRMW was miscompiling this before, we now generate correct code Convert it to filecheck while I'm at it. test/CodeGen/MSP430/Inst16mm.ll: Add a testcase for mem/mem folding to make anton happy. :) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97596 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-02run HandleMergeInputChains even if we only have one input chain.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97581 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-02Fix the xfail I added a couple of patches back. The issueChris Lattner
was that we weren't properly handling the case when interior nodes of a matched pattern become dead after updating chain and flag uses. Now we handle this explicitly in UpdateChainsAndFlags. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97561 91177308-0d34-0410-b5e6-96231b3b80d8
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