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2009-09-08Fix may-be-used-uninitialized warning.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81223 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-08llvm-as is no longer needed here, now that opt can read assemblyDan Gohman
files directly. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81222 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-08Re-apply r80926, with fixes: keep the domtree informed of new blocksDan Gohman
that get created during loop unswitching, and fix SplitBlockPredecessors' LCSSA updating code to create new PHIs instead of trying to just move existing ones. Also, optimize Loop::verifyLoop, since it gets called a lot. Use searches on a sorted list of blocks instead of calling the "contains" function, as is done in other places in the Loop class, since "contains" does a linear search. Also, don't call verifyLoop from LoopSimplify or LCSSA, as the PassManager is already calling verifyLoop as part of LoopInfo's verifyAnalysis. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81221 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-08Add NEON 'laned' operations. This fixes another bunch of gcc testsuite fails andAnton Korobeynikov
makes the code faster. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81220 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-08fix a couple typos pointed out by edwin and duncanChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81219 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-08Unbreak these tests. Chris, please verify that these changes are intended.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81217 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-08Add source debug information to the Sparc code generator.Richard Pennington
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81215 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-08When emitting a label for a PostCall safe point, the machineNicolas Geoffray
instruction to insert before can be end(). getDebugLoc on end() returns an invalid value, therefore use the debug loc of the call instruction, and give it to InsertLabel. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81207 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-08Also emit a label for TargetInstrInfo::GC_LABEL.Nicolas Geoffray
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81206 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-08UnbreakAnton Korobeynikov
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81205 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-08When remat'ing and destination virtual register has a sub-register index. ↵Evan Cheng
Make sure the sub-register class matches the register class of the remat'ed instruction definition register class. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81204 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-08Print "X-42" instead of "X+-42".Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81203 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-08make formatting of expressions more closely match the existing asmprinter.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81202 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-08tidy whitespace.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81201 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-08disable some irrelevant eh emissionChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81200 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-08add support for some missing modifiers on jumptable/constant pool entries.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81199 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-08add a bunch more evil lowering code to work around various :subreg32 modifiersChris Lattner
in the .td files. This gets us down to 18 failures in codegen/x86 with the new asmprinter. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81198 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-08lit needs bash for tcl-as-sh execution, we use set -o pipefail.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81197 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-08ADd support for "lowering" the X86::MOVZX16rr8/X86::MOVZX16rm8Chris Lattner
subreg32 modifiers. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81196 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-08add a hack to lower MOV16r0 to MOV32r0 in MCInstLower, eliminatingChris Lattner
the problem with subreg32 modifiers. This gets all of Olden working with the new asmprinter. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81195 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-08Fix typo that worked on python 2.6.Daniel Dunbar
Also, fix unit tests. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81194 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-08Hoist out the test+insert to CheckedTypes. This doesn't seem to affectNick Lewycky
performance. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81193 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-08Fix a refactoro.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81192 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-08Add 'lit' support for llvm tests.Daniel Dunbar
- This adds 'make check-lit' from the top-level Makefile. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81191 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-08Add 'lit' testing tool.Daniel Dunbar
- make install && man $(llvm-config --prefix)/share/man/man1/lit.1 for more information. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81190 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-08llvm::cerr is gone.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81189 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-08update this to use raw_ostreamChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81188 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-08fix PR4767, a crash because fp stackifier visited blocks inChris Lattner
depth first order, so it wouldn't process unreachable blocks. When compiling at -O0, late dead block elimination isn't done and the bad instructions got to isel. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81187 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-08remove a turdChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81186 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-08instcombine transforms vector loads that are only used byChris Lattner
extractelement operations into a bitcast of the pointer, then a gep, then a scalar load. Disable this when the vector only has one element, because it leads to infinite loops in instcombine (PR4908). This transformation seems like a really bad idea to me, as it will likely disable CSE of vector load/stores etc and can be better done in the code generator when profitable. This goes all the way back to the first days of packed types, r25299 specifically. I'll let those people who care about the performance of vector code decide what to do with this. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81185 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-08fix pastoChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81184 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-08add getVectorOperand/getIndexOperand accessors to ExtractElementInst.Chris Lattner
Fix some const correctness problems in SelectInst. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81183 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-08Simplify from my last change. Assert1 is a macro that makes its caller return,Nick Lewycky
so "Assert1(isa<>); cast<>" is a valid idiom. Actually check the PHI node's odd-numbered operands for BasicBlock-ness, like the comment said. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81182 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-08Fix an abort on a store of an empty struct member. getValue returnsDan Gohman
null in the case of an empty struct, so don't try to call getNumValues on it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81180 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-08Verify types. Invalid types can be constructed when assertions are off.Nick Lewycky
Make the verifier more robust by avoiding unprotected cast<> calls. Notably, Assert1(isa<>); cast<> is not safe as Assert1 does not terminate the program. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81179 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-08fix PR4915, a crash in -debug mode.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81177 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-08Fix PR4882, by making MemCpyOpt not dereference removed stores to get theChris Lattner
context for the newly created operations. Patch by Jakub Staszak! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81175 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-08fix ComputeMaskedBits handling of zext/sext/trunc to work with vectors.Chris Lattner
This fixes PR4905 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81174 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-08add some comments to describe the invariants.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81173 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-07Reappy r80998, now that the GlobalOpt bug that it exposed on MiniSAT is fixed.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81172 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-07Fix a thinko: When lowering fneg with xor, bitcast the operandsDan Gohman
from floating-point to integer first, and bitcast the result back to floating-point. Previously, this test was passing by falling back to SelectionDAG lowering. The resulting code isn't as nice, but it's correct and CodeGen now stays on the fast path. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81171 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-07add some more notes.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81170 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-07Add a testcase for the GlobalOpt inbounds fix.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81168 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-07describe undef semantics in some more detail.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81167 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-07Add inbounds to these getelementptrs, now that GlobalOpt requires this,Dan Gohman
to preserve the meaning of these tests. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81166 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-07Don't commit stores with addresses that have indices that are notDan Gohman
compile-time constant integers or that are out of bounds for their corresponding static array types. These can cause aliasing that GlobalOpt assumes won't happen. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81165 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-07Don't commit addresses of aggregate values. This avoids problems withDan Gohman
an aggregate store overlapping a different aggregate store, despite the stores having distinct addresses. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81164 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-07Fix GlobalOpt to avoid committing a store if the address getelementptrDan Gohman
is missing the inbounds flag. This is slightly conservative, but it avoids problems with two constants pointing to the same address but getting distinct entries in the Memory DenseMap. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81163 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-07Preserve the InBounds flag when evaluating a getelementptr instructionDan Gohman
into a getelementptr ConstantExpr. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81162 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-07Simplify this code by using hasDefinitiveInitializer().Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81161 91177308-0d34-0410-b5e6-96231b3b80d8
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