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2010-05-04Set DW_AT_APPLE_omit_frame_ptr in endFunction() where MachineFunction is ↵Devang Patel
available all the time. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103001 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-04Instruction selection optimizations may have moved the def of a function ↵Evan Cheng
argument out of the entry block. rdar://7937489 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102993 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-04Teach scheduler about REG_SEQUENCE.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102984 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-04Re-enable isel kill flags, now that the local allocator is ignoring them.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102981 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-03Remove preexisting kill flags in RegAllocLocal, just like LiveVariables does.Jakob Stoklund Olesen
This should make it possible to start producing kill flags in isel without breaking stuff. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102976 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-03Factor out FastISel's code for materializing constants and other valuesDan Gohman
in registers into a separate function to de-couple it from the top-down-specific logic in getRegForValue. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102975 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-03Check that subregisters don't have independent values in ↵Jakob Stoklund Olesen
RemoveCopyByCommutingDef(). This fixes PR6941. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102970 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-03Reword a comment slightly.Eric Christopher
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102966 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-03Print basic block numbers in live interval debug output. Since the rest of theBob Wilson
debug output is showing machine instructions, the IR-level basic block names aren't very meaningful, and because multiple machine basic blocks may be derived from one IR-level BB, they're also not unique. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102960 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-03Fix a bug which prevented tail merging of return instructions inDan Gohman
beneficial cases. See the changes in test/CodeGen/X86/tail-opts.ll and test/CodeGen/ARM/ifcvt2.ll for details. The fix is to change HashEndOfMBB to hash at most one instruction, instead of trying to apply heuristics about when it will be profitable to consider more than one instruction. The regular tail-merging heuristics are already prepared to handle the same cases, and they're more precise. Also, make test/CodeGen/ARM/ifcvt5.ll and test/CodeGen/Thumb2/thumb2-branch.ll slightly more complex so that they continue to test what they're intended to test. And, this eliminates the problem in test/CodeGen/Thumb2/2009-10-15-ITBlockBranch.ll, the testcase from PR5204. Update it accordingly. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102907 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-01Don't count debug info as instructions. This wasDale Johannesen
preventing the emission of the NOP on Darwin for a function with no actual code. From timberwolfmc with TEST=optllcdbg. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102843 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-01Insert ANY_EXTEND node instead of invalid truncate during DAG Combining (X & 1),Anton Korobeynikov
when needed. This fixes PR7001 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102838 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-01Remove the code for special-casing byval for fast-isel. SelectionDAGDan Gohman
handles argument lowering anyway, so there's no need for special casing here. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102828 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-01Re-disable kill flags, as there is more trouble.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102826 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-01Re-enable kill flags from SelectionDAGISel, with a fix: don'tDan Gohman
try to put a kill flag on a DBG_INFO instruction. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102820 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-01Fix a bug where debug info affected stack slot coloring.Dale Johannesen
Seen in SingleSrc/Benchmarks/Misc/flops with TEST=optllcdbg. 7929951. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102819 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-01Fix whitespace.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102817 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-01Don't pass SDValues by non-const reference unless they may beDan Gohman
modified. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102816 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-01Reorgnaize more switch code lowering to clean up some trickyDan Gohman
code, and to eliminate the need for the SelectionDAGBuilder state to be live during CodeGenAndEmitDAG calls. Call SDB->clear() before CodeGenAndEmitDAG calls instead of before it, and move the CurDAG->clear() out of SelectionDAGBuilder, which doesn't own the DAG, and into CodeGenAndEmitDAG. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102814 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-01Delete the EdgeMapping variable itself.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102810 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-01Get rid of the EdgeMapping map. Instead, just check for BasicBlockDan Gohman
changes before doing phi lowering for switches. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102809 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-30EXTRACT_VECTOR_ELT of an INSERT_VECTOR_ELT may have the same index, but theBill Wendling
indexes could be of a different value type. Or not even using the same SDNode for the constant (weird, I know). Compare the actual values instead of the pointers. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102791 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-30Remove this debug output. The MachineFunction will be printed once all ofDan Gohman
instruction selection is done; it's confusing to see parts of it printed, while other parts are omitted, along the way. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102771 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-30The local register allocator has to spill dirty callee saved registers before aJakob Stoklund Olesen
call that might throw. The landing pad assumes that all registers are in stack slots. We used to spill those dirty CSRs after the call, and the stack slots would be wrong when arriving at the landing pad. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102770 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-30Attach AT_APPLE_optimized attribute to optimized function's debug info.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102743 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-30EmitDbgValue doesn't need its EdgeMapping argument.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102742 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-30Don't use floating point in SimpleRegisterCoalescing.Jakob Stoklund Olesen
Rounding differences causes tests to fail on Linux. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102729 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-30Apply a patch from Jan Sjodin to fix a compiler abort on vectorDan Gohman
comparisons sign-extended to a different bitwidth than the comparison operands. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102721 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-30Temporarily disable SelectionDAG kill flags, which are causing trouble.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102680 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-30Set register kill flags on the SelectionDAG path, at least in theDan Gohman
easy cases. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102678 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-29Reject really weird coalescer case when trying to merge identical subregistersJakob Stoklund Olesen
of different register classes. e.g. %reg1048:3<def> = EXTRACT_SUBREG %RAX<kill>, 3 Where %reg1048 is a GR32 register. This is not impossible to handle, but it is pretty hard and very rare. This should unbreak the dragonegg builder. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102672 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-29Fix typos in assertion strings.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102666 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-29Slightly verboser debug spew from coalescerJakob Stoklund Olesen
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102663 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-29Refactor.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102661 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-29Make naked functions work on PPC.Dale Johannesen
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102657 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-29Print variable scope name in DEBUG_VALUE comment. Useful in some cases. e.g.Devang Patel
##DEBUG_VALUE: runOnMachineFunction:this <- RDI+0 ##DEBUG_VALUE: runOnMachineFunction:fn <- RSI+0 ##DEBUG_VALUE: DeadDefs <- undef ## SimpleRegisterCoalescing.cpp:2706 ##DEBUG_VALUE: getRegInfo:this <- [%rsp+$56]+$0 ##DEBUG_VALUE: getTarget:this <- [%rsp+$56]+$0 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102655 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-29Remove DBG_VALUE which reference dead stack slots.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102654 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-29DO not push DBG_VALUE machine instructions for inlined fuction arguments in ↵Devang Patel
entry block. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102653 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-29Add comment.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102606 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-29Re-enable 102565 with fixes.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102602 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-29Temporarily disable my changes to unbreak the build.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102590 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-29Do not generate duplicate dbg_value instructions for function arguments.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102585 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-29Fix missing #include.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102584 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-29Avoid emitting a dbg_value machineinstr that's not going to be inserted into ↵Evan Cheng
entry block. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102581 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-29Check Reg against zero.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102573 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-28- Really preserve dbg_value instructions when the register is spilled.Evan Cheng
- Also, update dbg_value is the value is being re-matted from a frame slot, e.g. fixed slots for arguments. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102565 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-28tidy up.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102558 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-28Replace r102368 with code that's less fragile. This creates DBG_VALUE ↵Evan Cheng
instructions for function arguments early and insert them after instruction selection is done. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102554 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-28Pretty print DBG_VALUE machine instructions.Evan Cheng
Before: DBG_VALUE %RSI, 0, !-1; dbg:SimpleRegisterCoalescing.cpp:2707 Now: DBG_VALUE %RSI, 0, !"this"; dbg:SimpleRegisterCoalescing.cpp:2707 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102518 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-28Rework global alignment computation again. Now we do round upChris Lattner
alignment of globals to the preferred alignment, but only when there is no section specified on the global (by far the common case). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102515 91177308-0d34-0410-b5e6-96231b3b80d8
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