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2009-09-10Add helpful comment.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81406 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-09Believe it or not, this is a simplification. :-)Bill Wendling
Basically, this patch is working towards removing the hard-coded values that are output for the CIE. In particular, the CIE augmentation and the CIE augmentation size. Both of these should be calculated. In the process, I was able to make a bunch of code simpler. The encodings for the personality, LSDA, and FDE in the CIE are still not correct. They should be generated either from target-specific callbacks (blech!) or grokked from first-principles. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81404 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-09remove DebugLoc from MCInst and eliminate "Comment printing" fromChris Lattner
the MCInst path of the asmprinter. Instead, pull comment printing out of the autogenerated asmprinter into each target that uses the autogenerated asmprinter. This causes code duplication into each target, but in a way that will be easier to clean up later when more asmprinter stuff is commonized into the base AsmPrinter class. This also fixes an xcore strangeness where it inserted two tabs before every instruction. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81396 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-09Use the EOL that takes the encoding and translates it into DWARF-English.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81382 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-09Early exit from function.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81381 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-09Small amount of code clean-up: Don't use ".size()" when not necessary.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81380 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-09Removed static qualifier from a few index related methods. These methods may ↵Lang Hames
require a LiveIntervals instance in future. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81374 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-09Preserve ProfileInfo.Andreas Neustifter
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81360 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-09When widening a vector load, use the correct chain. This fixes PR4891.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81343 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-08change selectiondag to add the sign extended versions of immediate operandsChris Lattner
to instructions instead of zero extended ones. This makes the asmprinter print signed values more consistently. This apparently only really affects the X86 backend. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81265 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
2009-09-08When 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
2009-09-08Fix 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
2009-09-07Fix 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
2009-09-06Simplify. Testing shows that this is not equivalent to BBI = CR.CaseBB + 1.Duncan Sands
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81124 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-06Mark more constants unsigned, as warned about by icc (#68).Duncan Sands
Patch by Erick Tryzelaar. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81116 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-06Remove some not-really-used variables, as warnedDuncan Sands
about by icc (#593, partial). Patch by Erick Tryzelaar. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81115 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-06It's a bool, so treat it like one. Fixes a MSVC warning.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81112 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-06Remove some unused variables and methods warned about byDuncan Sands
icc (#177, partial). Patch by Erick Tryzelaar. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81106 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-05Detect VLAs.Devang Patel
Do not use DenseMap operator[] because it inserts new entry if lookup fails. Use find() to check an entry in a DenseMap first. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81058 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-04Ignore malformed global variable debug info.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81055 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-04Replaces uses of unsigned for indexes in LiveInterval and VNInfo withLang Hames
a new class, MachineInstrIndex, which hides arithmetic details from most clients. This is a step towards allowing the register allocator to update/insert code during allocation. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81040 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-04Use delete[] to match new[] (found by valgrind).Duncan Sands
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80997 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-04Run branch folding if if-converter make some transformations.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80994 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-04Fix comment for consistency sake.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80993 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-04If there's a calling convention attach it to the rewind function call.Eric Christopher
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80976 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-03Funky indentation.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80971 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-03LLVM currently represents floating-point negation as -0.0 - x. FixDan Gohman
FastISel to recognize this pattern and emit a floating-point negation using xor. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80963 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-03Don't crash when target has no itineraries.David Goodwin
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80962 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-03Create our own block initializer for kill fixups as the scheduling one ↵David Goodwin
wasn't doing the right thing. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80958 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-03Overhaul the TwoAddressInstructionPass to simplify the logic, especiallyBob Wilson
for the complicated case where one register is tied to multiple destinations. This avoids the extra scan of instruction operands that was introduced by my recent change. I also pulled some code out into a separate TryInstructionTransform method, added more comments, and renamed some variables. Besides all those changes, this takes care of a FIXME in the code regarding an assumption about there being a single tied use of a register when converting to a 3-address form. I'm not aware of cases where that assumption is violated, but the code now only attempts to transform an instruction, either by commuting its operands or by converting to a 3-address form, for the simple case where there is a single pair of tied operands. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80945 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-03Recognize more opportunities to use SSE min and max instructions,Dan Gohman
swapping the operands if necessary. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80940 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-03Fixed a test that ensures the LocalRewriter does not attempt toLang Hames
avoid reloads by reusing clobbered registers. This was causing issues in 256.bzip2 when compiled with PIC for a while (starting at r78217), though the problem has since been masked. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80872 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-02Rearrange code to eliminate redundancy and avoid gotos.Bob Wilson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80798 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-02Retype from unsigned to CallingConv::ID accordingly. Approved by Bob Wilson.Sandeep Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80773 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-01Avoid calling removeVirtualRegisterKilled which iterates over the operandsBob Wilson
to find the kill, since we already have the operand. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80736 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-01Refactor some code into separate functions. No functional changes.Bob Wilson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80733 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-01Move use of LV inside condition that guards for null LV.Bob Wilson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80731 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-01Remove Offset from ExternalSybmol MachineOperands, this is unused (and at ↵Daniel Dunbar
least partly unsupported, in X86 encoding at least). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80726 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-01Fix ELF Writter related memory leaksBruno Cardoso Lopes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80717 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-01reduce size of SmallString to something more reasonableJim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80710 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-01Use raw_ostream instead of sstreamJim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80704 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-01Add hidden flags to allow binary search of post-RA scheduling errors.David Goodwin
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80702 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-01revert inadvertant change from previous commitJim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80689 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-01Simply LSDA lable emission to use a direct special-case output instead ofJim Grosbach
EmitLabel() git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80677 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-01Fix pr4843: When an instruction has multiple destination registers that areBob Wilson
tied to different source registers, the TwoAddressInstructionPass needs to be smarter. Change it to check before replacing a source register whether that source register is tied to a different destination register, and if so, defer handling it until a subsequent iteration. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80654 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-01Clean up LSDA name generation and use for SJLJ exception handling. ThisJim Grosbach
makes an eggregious hack somewhat more palatable. Bringing the LSDA forward and making it a GV available for reference would be even better, but is beyond the scope of what I'm looking to solve at this point. Objective C++ code could generate function names that broke the previous scheme. This fixes that. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80649 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-31Subprogram is a scope. Derive DISubprogram from DIScope.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80637 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-31Rename DIBlock as DILexicalBlock.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80633 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-31Use early exit and reduce indentation.Bob Wilson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80631 91177308-0d34-0410-b5e6-96231b3b80d8
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