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* Change the other half of aliasGEP (which handles GEP differencing) to use ↵Chris Lattner2009-11-262-468/+167
| | | | | | DecomposeGEPExpression. This dramatically simplifies and shrinks the code by eliminating the horrible CheckGEPInstructions method, fixes a miscompilation (@test3) and makes the code more aggressive. In particular, we now handle the @test4 case, which is reduced from the SmallPtrSet constructor. Missing this caused us to emit a variable length memset instead of a fixed size one. llvm-svn: 89922
* add a new random feature testChris Lattner2009-11-261-1/+17
| | | | llvm-svn: 89921
* Generalize DecomposeGEPExpression to exactly handle what ↵Chris Lattner2009-11-261-30/+62
| | | | | | Value::getUnderlyingObject does (when TD is around). This allows us to avoid calling DecomposeGEPExpression unless the ultimate alias check we care about passes, speedup up BasicAA a bit. llvm-svn: 89920
* Implement a new DecomposeGEPExpression method, which decomposes a GEP into a ↵Chris Lattner2009-11-261-40/+121
| | | | | | list of scaled offsets. Use this to eliminate some previous ad-hoc code which was subtly broken (it assumed all Constant*'s were non-zero, but strange constant express could be zero). llvm-svn: 89915
* Use GEPOperator more pervasively to simplify code.Chris Lattner2009-11-261-29/+27
| | | | llvm-svn: 89914
* update some notes slightlyChris Lattner2009-11-261-3/+5
| | | | llvm-svn: 89913
* remove some redundant bracesChris Lattner2009-11-261-4/+2
| | | | llvm-svn: 89912
* Test for 89905.Evan Cheng2009-11-261-0/+116
| | | | llvm-svn: 89906
* When all defs of a vr are implicit_def, delete all of the defs.Evan Cheng2009-11-261-2/+6
| | | | llvm-svn: 89905
* Split tail duplication into a separate pass. This is needed to avoidBob Wilson2009-11-268-239/+320
| | | | | | | | | running tail duplication when doing branch folding for if-conversion, and we also want to be able to run tail duplication earlier to fix some reg alloc problems. Move the CanFallThrough function from BranchFolding to MachineBasicBlock so that it can be shared by TailDuplication. llvm-svn: 89904
* Test for llvm-gcc checkin 89898.Dale Johannesen2009-11-251-0/+17
| | | | llvm-svn: 89899
* Update to reflect recent debugging information encoding changes.Devang Patel2009-11-251-219/+118
| | | | llvm-svn: 89896
* Rollback changes r89516: Added two SubtargetFeatures::AddFeatures methods, ↵Viktor Kutuzov2009-11-253-44/+3
| | | | | | which accept a comma-separated string or already parsed command line parameters as input, and some code re-factoring to use these new methods. llvm-svn: 89893
* ProcessImplicitDefs should watch out for invalidated iterator and extra ↵Evan Cheng2009-11-252-14/+101
| | | | | | implicit operands on copies. llvm-svn: 89880
* Tail duplicate indirect branches for PowerPC, too.Bob Wilson2009-11-251-0/+2
| | | | | | | With the testcase for pr3120, the "threaded interpreter" runtime decreases from 1788 to 1413 with this change. llvm-svn: 89877
* Avoid some possibly unsafe uses of StringRef::data().Benjamin Kramer2009-11-252-7/+5
| | | | llvm-svn: 89873
* Use StringRef (again) in DebugInfo interface.Devang Patel2009-11-255-134/+138
| | | | llvm-svn: 89866
* Based on the testcase for pr3120, running on my MacPro with Xeon processors,Bob Wilson2009-11-251-0/+2
| | | | | | | it is definitely profitable to tail duplicate indirect branches for x86. This is likely to be true to various degrees for all modern x86 processors. llvm-svn: 89865
* Support PIC loading of constant pool entriesBruno Cardoso Lopes2009-11-253-14/+21
| | | | llvm-svn: 89863
* Adjust comments to new semantics.Edward O'Callaghan2009-11-251-3/+3
| | | | llvm-svn: 89862
* Sketch structure for X86 disassembler.Daniel Dunbar2009-11-254-1/+52
| | | | llvm-svn: 89850
* API change Path::isSpecialFile to Path::isRegularFile, improve semantics in ↵Edward O'Callaghan2009-11-253-10/+14
| | | | | | regards to comments from 89765 post review. llvm-svn: 89848
* Perform explicit instantiations in the proper namespace, since Clang ↵Douglas Gregor2009-11-251-0/+2
| | | | | | diagnoses this ill-formity. llvm-svn: 89846
* Reverting patch in revision 89758, initial attempt at fixing PR5373 has ↵Edward O'Callaghan2009-11-252-24/+1
| | | | | | proven to be bogus. llvm-svn: 89844
* Add the rest of the build system logic for optional target disassemblersDaniel Dunbar2009-11-255-3/+32
| | | | llvm-svn: 89841
* Regenerate configureDaniel Dunbar2009-11-251-32/+40
| | | | llvm-svn: 89840
* Add CMake and configure logic to create llvm/Config/Disassemblers.defs.Daniel Dunbar2009-11-253-2/+49
| | | | llvm-svn: 89839
* Sketch TableGen disassembler emitter, based on patch by Sean Callanan.Daniel Dunbar2009-11-254-0/+66
| | | | llvm-svn: 89833
* Use endianess dependent offsets for load/store of doubles whenBruno Cardoso Lopes2009-11-251-0/+8
| | | | | | using two swc/lwc instead of sdc/ldc. llvm-svn: 89826
* Fix compiler warnings.Dale Johannesen2009-11-251-4/+4
| | | | llvm-svn: 89824
* Only include in the callee saved regs the sub registers to avoidBruno Cardoso Lopes2009-11-251-5/+2
| | | | | | unnecessary save/restore. llvm-svn: 89823
* Add proper emission of load/store double to stack slots for mips1 targets!Bruno Cardoso Lopes2009-11-251-21/+43
| | | | llvm-svn: 89821
* Revert r89803.Devang Patel2009-11-251-3/+0
| | | | llvm-svn: 89819
* Refactor target hook for tail duplication as requested by Chris.Bob Wilson2009-11-244-17/+18
| | | | | | | | | | | | Make tail duplication of indirect branches much more aggressive (for targets that indicate that it is profitable), based on further experience with this transformation. I compiled 3 large applications with and without this more aggressive tail duplication and measured minimal changes in code size. ("size" on Darwin seems to round the text size up to the nearest page boundary, so I can only say that any code size increase was less than one 4k page.) Radar 7421267. llvm-svn: 89814
* Do not store R31 into the caller's link area on PPC.Dale Johannesen2009-11-246-32/+43
| | | | | | | | | | | | This violates the ABI (that area is "reserved"), and while it is safe if all code is generated with current compilers, there is some very old code around that uses that slot for something else, and breaks if it is stored into. Adjust testcases looking for current behavior. I've verified that the stack frame size is right in all testcases, whether it changed or not. 7311323. llvm-svn: 89811
* Enable debug info for ppc-darwin.Devang Patel2009-11-241-0/+3
| | | | llvm-svn: 89803
* Use StringRef instead of std::string in DIEString.Devang Patel2009-11-245-6/+6
| | | | llvm-svn: 89793
* Remove DebugLabelFolder pass. It is not used by dwarf writer anymore.Devang Patel2009-11-244-97/+0
| | | | llvm-svn: 89790
* Swith to pubtypes section before emitting pub types.Devang Patel2009-11-241-0/+3
| | | | llvm-svn: 89787
* Remove bogus error handling code.Daniel Dunbar2009-11-241-6/+2
| | | | llvm-svn: 89786
* Fix comments as pre-post review for rev.89765.Edward O'Callaghan2009-11-241-2/+2
| | | | llvm-svn: 89770
* Provide Path::isSpecialFile interface for PR5568.Edward O'Callaghan2009-11-243-2/+30
| | | | llvm-svn: 89765
* Fix for PR5373, Credit to Jakub Staszak.Edward O'Callaghan2009-11-242-1/+24
| | | | llvm-svn: 89758
* Enable predication of NEON instructions in Thumb2 mode.Evan Cheng2009-11-242-5/+30
| | | | llvm-svn: 89748
* Oops. Re-disable JITTest.NoStubs on ARM and PPC since they still use stubs toJeffrey Yasskin2009-11-241-0/+5
| | | | | | make far calls work. llvm-svn: 89733
* Delete some dead and non-obvious code.Dan Gohman2009-11-242-55/+0
| | | | llvm-svn: 89729
* Emit pubtypes.Devang Patel2009-11-244-23/+133
| | | | llvm-svn: 89725
* Make capitalization of names starting "is" more consistent.Dale Johannesen2009-11-243-43/+43
| | | | | | No functional change. llvm-svn: 89724
* Data type suffix must come after predicate.Evan Cheng2009-11-241-2/+2
| | | | llvm-svn: 89723
* <rdar://problem/6721894>. Allow multiple registers to be renamed together ↵David Goodwin2009-11-241-6/+0
| | | | | | (super and sub) if necessary to break an anti-dependence. llvm-svn: 89722
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