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2010-06-18Don't call clear() on DbgInfo when it's going to be deleted anyway.Dan Gohman
Don't replace the old DbgInfo with a new one when clear() on the old one is sufficient. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106283 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-18Change UpdateNodeOperands' operand and return value from SDValue toDan Gohman
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
2010-06-18Eliminate unnecessary uses of getZExtValue().Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106279 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-18isValueValidForType can be a static member function.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106278 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-18Fold the ShrinkDemandedOps pass into the regular DAGCombiner pass,Dan Gohman
which is faster, simpler, and less surprising. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106263 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-18Handle ext(ext(x)) -> ext(x) immediately, since it's simple.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106256 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-17Add a DebugLoc parameter to TargetInstrInfo::InsertBranch(). ThisStuart Hastings
addresses a longstanding deficiency noted in many FIXMEs scattered across all the targets. This effectively moves the problem up one level, replacing eleven FIXMEs in the targets with eight FIXMEs in CodeGen, plus one path through FastISel where we actually supply a DebugLoc, fixing Radar 7421831. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106243 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-17add missing break. inconsequential as the code shouldn't be reached, butJim Grosbach
for correctness' sake, it should be there. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106229 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-17Add entries for Expanding atomic intrinsics to libcalls. Just a placeholderJim Grosbach
for the moment. The implementation of the libcall will follow. Currently, the llvm-gcc knows when the intrinsics can be correctly handled by the back end and only generates them in those cases, issuing libcalls directly otherwise. That's too much coupling. The intrinsics should always be generated and the back end decide how to handle them, be it with a libcall, inline code, or whatever. This patch is a step in that direction. rdar://8097623 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106227 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-17ISD::MEMBARRIER should lower to a libcall (__sync_synchronize) if the targetJim Grosbach
sets the legalize action to Expand. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106203 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-15Fixed vector widening of binary instructions that can trap. Patch by Visa ↵Mon P Wang
Putkinen! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106038 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-10Code refactoring, no functionality changes.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105775 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-09Mark physregs defined by inline asm as implicit.Jakob Stoklund Olesen
This is a bit of a hack to make inline asm look more like call instructions. It would be better to produce correct dead flags during isel. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105749 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-09Add argument name comments.Jakob Stoklund Olesen
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105665 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-04Fixed a bug during widening where we would avoid legalizing a node. When weMon P Wang
replace an OpA with a widened OpB, it is possible to get new uses of OpA due to CSE when recursively updating nodes. Since OpA has been processed, the new uses are not examined again. The patch checks if this occurred and it it did, updates the new uses of OpA to use OpB. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105453 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-03Fix SimplifyDemandedBits' AssertZext logic to demand all the bits. ItDan Gohman
needs to demand the high bits because it's asserting that they're zero. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105406 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-03Implement expansion in type legalization for add/sub with overflow. TheEli Friedman
expansion is the same as that used by LegalizeDAG. The resulting code sucks in terms of performance/codesize on x86-32 for a 64-bit operation; I haven't looked into whether different expansions might be better in general. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105378 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-01Keep track of incoming debug value of unused argument.Devang Patel
Radar 7927666. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105285 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-01Fill in missing support for ISD::FEXP, ISD::FPOWI, and friends.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105283 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-31fix PR6623: when optimizing for size, don't inline memcpy/memsetsChris Lattner
that are too large. This causes the freebsd bootloader to be too large apparently. It's unclear if this should be an -Os or -Oz thing. Thoughts welcome. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105228 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-31the 'limit' argument to FindOptimalMemOpLowering is unsigned, not uint64_t.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105226 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-30Use `llvm::next' instead of `next' to make VC++ 2010 happy.Oscar Fuentes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105168 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-29Reorder some code in SelectionDAGBuilder.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105105 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-29SelectionDAG shouldn't have a FunctionLoweringInfo member. RegsForValueDan Gohman
shouldn't have a TargetLoweringInfo member. And FunctionLoweringInfo::set doesn't needs its EnableFastISel argument. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105101 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-28Fix some latency computation bugs: if the use is not a machine opcode do not ↵Evan Cheng
just return zero. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105061 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-28Eliminate the restriction that the array size in an alloca must be i32.Dan Gohman
This will help reduce the amount of casting required on 64-bit targets. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104911 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-27Update the saved stack pointer in the sjlj function context following eitherJim Grosbach
an alloca() or an llvm.stackrestore(). rdar://8031573 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104900 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-27back out 104862/104869. Can reuse stacksave after all. Very cool.Jim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104897 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-27hook ISD::STACKADDR to an intrinsicJim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104869 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-26Add FIXME comment to remove this.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104749 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-26Add "setjmp_syscall", "savectx", "qsetjmp", "vfork", "getcontext" to the list ofBill Wendling
usual suspects that could "return twice". git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104737 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-26Adjust eh.sjlj.setjmp to properly have a chain and to have an opcode entry inJim Grosbach
ISD::. No functional change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104734 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-26Update debug info when live-in reg is copied into a vreg.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104732 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-26Move the check for "calls setjmp" to SelectionDAGISel so that it can be used byBill Wendling
more than just the stack slot coloring algorithm. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104722 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-26Eliminate the use of PriorityQueue and just use a std::vector,Dan Gohman
implementing pop with a linear search for a "best" element. The priority queue was a neat idea, but in practice the comparison functions depend on dynamic information. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104718 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-26Delete an unused function.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104716 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-26Temporarily revert r104655 as it's breaking the bots.Eric Christopher
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104664 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-26Change push_all to a non-virtual function and implement it in theDan Gohman
base class, since all the implementations are the same. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104659 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-26Trim #include.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104657 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-26Dale and Evan suggested putting the "check for setjmp" much earlier in theBill Wendling
machine code generation. That's a good idea, so I made it so. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104655 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-25Do one map lookup instead of two.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104645 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-25Fix another variant of PR 7191. Also add a testcaseDale Johannesen
Mon Ping provided; unfortunately bugpoint failed to reduce it, but I think it's important to have a test for this in the suite. 8023512. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104624 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-25Fix PR 7191. I have been unable to create a .ll file that fails, sorry.Dale Johannesen
(oye, a word which should be better known to people writing tree traversals, means grandchild.) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104619 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-22Implement eh.sjlj.longjmp for ARM. Clean up the intrinsic a bit.Jim Grosbach
Followups: docs patch for the builtin and eh.sjlj.setjmp cleanup to match longjmp. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104419 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-21Clean up extra whitespace.Bob Wilson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104410 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-21Change CodeGen/ARM/2009-11-02-NegativeLane.ll to use 16-bit vector elementsBob Wilson
so that it will continue to test what it was meant to test when I commit a separate change for better support of BUILD_VECTOR and VECTOR_SHUFFLE for Neon. Fix a DAG combiner crash exposed by this test change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104380 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-21Rename -pre-RA-sched=hybrid to -pre-RA-sched=list-hybrid.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104306 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-20Allow targets more controls on what nodes are scheduled by reg pressure, ↵Evan Cheng
what for latency in hybrid mode. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104293 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-20Add a hybrid bottom up scheduler that reduce register usage while avoidingEvan Cheng
pipeline stall. It's useful for targets like ARM cortex-a8. NEON has a lot of long latency instructions so a strict register pressure reduction scheduler does not work well. Early experiments show this speeds up some NEON loops by over 30%. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104216 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-19Optimize away insertelement of an undef value. This shows up inBob Wilson
test/Codegen/ARM/reg_sequence.ll but it doesn't affect the generated code because the coalescer cleans it up. Radar 7998853. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104185 91177308-0d34-0410-b5e6-96231b3b80d8
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