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* Make DAE not wipe out attributes on calls, and not dropDuncan Sands2007-12-211-36/+55
| | | | | | | | | | | | | | | | return attributes on the floor. In the case of a call to a varargs function where the varargs arguments are being removed, any call attributes on those arguments need to be dropped. I didn't do this because I plan to make it illegal to have such attributes (see next patch). With this change, compiling the gcc filter2 eh test at -O0 and then running opt -std-compile-opts on it results in a correctly working program (compiling at -O1 or higher results in the test failing due to a problem with how we output eh info into the IR). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45285 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix unintented change from last commitNicolas Geoffray2007-12-211-3/+3
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45282 91177308-0d34-0410-b5e6-96231b3b80d8
* Enable EH for linux/ppc32 targetsNicolas Geoffray2007-12-212-15/+33
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45281 91177308-0d34-0410-b5e6-96231b3b80d8
* New entry.Evan Cheng2007-12-211-0/+15
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45280 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix JIT encoding for CMPSD as well.Evan Cheng2007-12-202-4/+8
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45268 91177308-0d34-0410-b5e6-96231b3b80d8
* More accurate checks for two-address constraints.Evan Cheng2007-12-201-8/+40
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45259 91177308-0d34-0410-b5e6-96231b3b80d8
* Implement review feedback, including additional transformsChristopher Lamb2007-12-201-17/+15
| | | | | | | | | | | (icmp slt (sub A B) 1) -> (icmp sle A B) icmp sgt (sub A B) -1) -> (icmp sge A B) and add testcase. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45256 91177308-0d34-0410-b5e6-96231b3b80d8
* The physical register + virtual register joining requirement was much too ↵Evan Cheng2007-12-201-1/+1
| | | | | | strict. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45253 91177308-0d34-0410-b5e6-96231b3b80d8
* Bring back a burr scheduling heuristic that's still needed.Evan Cheng2007-12-201-5/+34
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45252 91177308-0d34-0410-b5e6-96231b3b80d8
* Clean up previous patch: PHI uses should not prevent iv reuse if all other ↵Evan Cheng2007-12-201-35/+16
| | | | | | uses are addresses. This trades a constant multiply for one fewer iv. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45251 91177308-0d34-0410-b5e6-96231b3b80d8
* simplify this code with the new m_Zero() pattern. Make sure the select onlyChris Lattner2007-12-201-18/+10
| | | | | | | | has a single use, and generalize it to not require N to be a constant. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45250 91177308-0d34-0410-b5e6-96231b3b80d8
* Updated comments to reflect what "side effects" means in this situation.Bill Wendling2007-12-201-10/+3
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45245 91177308-0d34-0410-b5e6-96231b3b80d8
* More working CellSPU tests:Scott Michel2007-12-206-60/+70
| | | | | | | | - vec_const.ll: Vector constant loads - immed64.ll: i64, f64 constant loads git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45242 91177308-0d34-0410-b5e6-96231b3b80d8
* Allow iv reuse if the user is a PHI node which is in turn used as addresses.Evan Cheng2007-12-191-29/+82
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45230 91177308-0d34-0410-b5e6-96231b3b80d8
* Adding bindings for memory buffers and module providers. SwitchingGordon Henriksen2007-12-193-17/+60
| | | | | | to exceptions rather than variants for error handling in Ocaml. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45226 91177308-0d34-0410-b5e6-96231b3b80d8
* Enable EH on PPC Darwin. This basically works; thereDale Johannesen2007-12-191-1/+1
| | | | | | | | | | | | | | are a couple of issues that show up with the optimizer, but I don't think they're really EH problems. (llvm-gcc testsuite users note: By default the testsuite uses the unwinding code that's built as part of your local llvm-gcc, which does not work. You need to trick it into using the installed system unwinding code to get useful results.) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45221 91177308-0d34-0410-b5e6-96231b3b80d8
* CellSPU testcase, extract_elt.ll: extract vector element.Scott Michel2007-12-191-2/+5
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45219 91177308-0d34-0410-b5e6-96231b3b80d8
* When inlining through an 'nounwind' call, mark inlinedDuncan Sands2007-12-195-21/+84
| | | | | | | | | | calls 'nounwind'. It is important for correct C++ exception handling that nounwind markings do not get lost, so this transformation is actually needed for correctness. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45218 91177308-0d34-0410-b5e6-96231b3b80d8
* Two more test cases: or_ops.ll (arithmetic or operations) and vecinsert.llScott Michel2007-12-192-6/+5
| | | | | | | (vector insertions) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45216 91177308-0d34-0410-b5e6-96231b3b80d8
* Simplify LowerCallTo by using a callsite.Duncan Sands2007-12-191-41/+27
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45198 91177308-0d34-0410-b5e6-96231b3b80d8
* The C++ exception handling personality function wantsDuncan Sands2007-12-193-28/+60
| | | | | | | | | | | | | | | | | | | | | | | | to know about calls that cannot throw ('nounwind'): if such a call does throw for some reason then the personality will terminate the program. The distinction between an ordinary call and a nounwind call is that an ordinary call gets an entry in the exception table but a nounwind call does not. This patch sets up the exception table appropriately. One oddity is that I've chosen to bracket nounwind calls with labels (like invokes) - the other choice would have been to bracket ordinary calls with labels. While bracketing ordinary calls is more natural (because bracketing by labels would then correspond exactly to getting an entry in the exception table), I didn't do it because introducing labels impedes some optimizations and I'm guessing that ordinary calls occur more often than nounwind calls. This fixes the gcc filter2 eh test, at least at -O0 (the inliner needs some tweaking at higher optimization levels). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45197 91177308-0d34-0410-b5e6-96231b3b80d8
* Add new immed16.ll test case, fix CellSPU errata to make test case work.Scott Michel2007-12-195-13/+23
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45196 91177308-0d34-0410-b5e6-96231b3b80d8
* Mark the "isRemat" instruction as never having side effects.Bill Wendling2007-12-191-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45190 91177308-0d34-0410-b5e6-96231b3b80d8
* Don't leave newly created nodes around if it turns out they are not needed.Evan Cheng2007-12-191-2/+4
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45186 91177308-0d34-0410-b5e6-96231b3b80d8
* Added "GetCurrentDirectory()" to sys::Path.Ted Kremenek2007-12-182-0/+19
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45182 91177308-0d34-0410-b5e6-96231b3b80d8
* Add debugging info. Use the newly created "hasUnmodelledSideEffects" method.Bill Wendling2007-12-181-21/+38
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45178 91177308-0d34-0410-b5e6-96231b3b80d8
* Fold subtracts into integer compares vs. zero. This improves generate code ↵Christopher Lamb2007-12-181-1/+18
| | | | | | | | | | | | | | | | | | | | | | | | for this case on X86 from _foo: movl $99, %ecx movl 4(%esp), %eax subl %eax, %ecx xorl %edx, %edx testl %ecx, %ecx cmovs %edx, %eax ret to _foo: xorl %ecx, %ecx movl 4(%esp), %eax cmpl $99, %eax cmovg %ecx, %eax ret git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45173 91177308-0d34-0410-b5e6-96231b3b80d8
* Support more insane CEP's in AsmPrinter (Yes, PyPy folks do really use them).Anton Korobeynikov2007-12-181-1/+24
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45172 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix commentsChristopher Lamb2007-12-181-4/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45170 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove an orthogonal transformation of the selection condition from my most ↵Christopher Lamb2007-12-181-30/+2
| | | | | | recent submission. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45169 91177308-0d34-0410-b5e6-96231b3b80d8
* Added "isDirectory" method to llvm::sys::Path.Ted Kremenek2007-12-182-0/+15
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45168 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix PR1872: SrcValue and SrcValueOffset should not be used to compute load / ↵Evan Cheng2007-12-181-20/+0
| | | | | | store node id. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45167 91177308-0d34-0410-b5e6-96231b3b80d8
* remove obviously dead uses of IncludeFile.Chris Lattner2007-12-183-3/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45165 91177308-0d34-0410-b5e6-96231b3b80d8
* Also print alignment and volatileness.Evan Cheng2007-12-181-13/+19
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45164 91177308-0d34-0410-b5e6-96231b3b80d8
* remove a dead annotationChris Lattner2007-12-181-1/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45163 91177308-0d34-0410-b5e6-96231b3b80d8
* add an obvious load folding missed optzn.Chris Lattner2007-12-181-0/+21
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45161 91177308-0d34-0410-b5e6-96231b3b80d8
* Rename isNoReturn to doesNotReturn, and isNoUnwind toDuncan Sands2007-12-185-14/+14
| | | | | | | doesNotThrow. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45160 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix typos.Christopher Lamb2007-12-181-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45159 91177308-0d34-0410-b5e6-96231b3b80d8
* Fold certain additions through selects (and their compares) so as to ↵Christopher Lamb2007-12-182-18/+61
| | | | | | | | | eliminate subtractions. This code is often produced by the SMAX expansion in SCEV. This implements test/Transforms/InstCombine/2007-12-18-AddSelCmpSub.ll git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45158 91177308-0d34-0410-b5e6-96231b3b80d8
* FIX for PR1799: When a load is unfolded from an instruction, check if it is ↵Evan Cheng2007-12-181-26/+36
| | | | | | a new node. If not, do not create a new SUnit. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45157 91177308-0d34-0410-b5e6-96231b3b80d8
* SelectionDAG::dump() should print SrcValue of LoadSDNode and StoreSDNode.Evan Cheng2007-12-181-0/+18
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45151 91177308-0d34-0410-b5e6-96231b3b80d8
* Don't forget to print address space qualifiers when printing out the type ↵Christopher Lamb2007-12-181-1/+4
| | | | | | table! Thanks to Gordon Henriksen for pointing this out. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45147 91177308-0d34-0410-b5e6-96231b3b80d8
* add a missed case.Chris Lattner2007-12-181-0/+18
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45141 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove int_x86_sse2_movl_dq. It's replaced with a string compare.Evan Cheng2007-12-181-5/+3
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45140 91177308-0d34-0410-b5e6-96231b3b80d8
* Add "mayHaveSideEffects" and "neverHasSideEffects" flags to some instructions. IBill Wendling2007-12-177-21/+57
| | | | | | | | | | based what flag to set on whether it was already marked as "isRematerializable". If there was a further check to determine if it's "really" rematerializable, then I marked it as "mayHaveSideEffects" and created a check in the X86 back-end similar to the remat one. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45132 91177308-0d34-0410-b5e6-96231b3b80d8
* Bring back int_x86_sse2_movl_dq intrinsic for backward compatibility. Make sureEvan Cheng2007-12-172-24/+70
| | | | | | | it's auto-upgraded to a shufflevector instruction. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45131 91177308-0d34-0410-b5e6-96231b3b80d8
* - Restore some i8 functionality in CellSPUScott Michel2007-12-177-55/+479
| | | | | | | - New test case: nand.ll git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45130 91177308-0d34-0410-b5e6-96231b3b80d8
* Modified Deserializer::ReadCStr to allow C-strings to be read into aTed Kremenek2007-12-171-3/+10
| | | | | | | std::vector<char> starting from any index in the vector. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45129 91177308-0d34-0410-b5e6-96231b3b80d8
* LD_Fp64m should have "isRematerializable" set.Bill Wendling2007-12-171-1/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45128 91177308-0d34-0410-b5e6-96231b3b80d8
* As per feedback, revised comments to (hopefully) make the different side effectBill Wendling2007-12-171-3/+12
| | | | | | | flags clearer. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45120 91177308-0d34-0410-b5e6-96231b3b80d8
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