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2011-09-15Reapply r139759. Disable IV rewriting by default. See PR10916.Andrew Trick
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139842 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-15Thumb2 assembly parsing and encoding for SADD16/SADD8.Jim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139841 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-15Thumb2 assembly parsing and encoding for RSB.Jim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139839 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-15DWARF: Put all the pieces we have together and provide a single accessor to ↵Benjamin Kramer
DIContext that provides line information when given an address. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139836 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-15DWARF: Remove accessors that parse the whole line table section in one go, ↵Benjamin Kramer
this can't possibly work. The address size is specified by the compile unit associated with a line table, there is no global address size. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139835 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-15Thumb2 assembly parsing and encoding for RRX.Jim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139831 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-15Thumb2 assembly parsing and encoding for ROR.Jim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139830 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-15Thumb2 assembly parsing and encoding for REV16/REVSH.Jim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139828 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-15The the MC disassembler C API to print in verbose mode. Perhaps there ↵Owen Anderson
should be a parameter to request verbose mode? git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139821 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-15Add support for stored annotations to MCInst, and provide facilities for ↵Owen Anderson
MC-based InstPrinters to print them out. Enhance the ARM and X86 InstPrinter's to do so in verbose mode. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139820 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-15VirtRegMap is counting spill slots, not register spills.Jakob Stoklund Olesen
Fix the stats counters to reflect that. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139819 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-15Change all checks regarding the presence of any SSE level to alwaysBruno Cardoso Lopes
take into consideration the presence of AVX. This change, together with the SSEDomainFix enabled for AVX, makes AVX codegen to always (hopefully) emit the same code as SSE for 128-bit vector ops. I don't have a testcase for this, but AVX now beats SSE in performance for 128-bit ops in the majority of programas in the llvm testsuite git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139817 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-15Enable SSEDomainFix pass for AVX mode.Bruno Cardoso Lopes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139816 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-15Count correctly when a COPY turns into a spill or reload.Jakob Stoklund Olesen
The number of spills could go negative since a folded COPY is just a spill, and it may be eliminated. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139815 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-15Thumb2 assembly parsing and encoding for REV.Jim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139813 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-15Thumb2 assembly parsing and encoding for RBIT.Jim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139811 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-15Thumb2 assembly parsing and encoding for signed saturating arithmetic insns.Jim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139810 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-15DWARF: Print line tables per compile unit, so they get the right address size.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139808 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-15Assmebler symbol attribute directives don't work on temporary symbols.Jim Grosbach
Assembler private local symbols aren't legal targets of symbol attributes, so issue a diagnostic for them. Based on patch by Stepan Dyatkovskiy. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139807 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-15Count inserted spills and reloads more accurately.Jakob Stoklund Olesen
Adjust counters when removing spill and reload instructions. We still don't account for reloads being removed by eliminateDeadDefs(). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139806 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-15DWARF: wire up .debug_str dumping.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139799 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-15Handle missing newline at EOF more gracefully in MC AsmLexer.Jim Grosbach
If we see an EOF w/o a preceding end-of-line, return an EndOfStatement token before returning the Eof token. Based on patch by Stepan Dyatkovskiy. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139798 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-15Trace through sibling PHIs in bulk.Jakob Stoklund Olesen
When traceSiblingValue() encounters a PHI-def value created by live range splitting, don't look at all the predecessor blocks. That can be very expensive in a complicated CFG. Instead, consider that all the non-PHI defs jointly dominate all the PHI-defs. Tracing directly to all the non-PHI defs is much faster that zipping around in the CFG when there are many PHIs with many predecessors. This significantly improves compile time for indirectbr interpreters. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139797 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-15ARM support the pre-UAL mnemonic 'qsubaddx' for 'qsax.'Jim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139796 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-15Re-order test.Jim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139795 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-15Thumb2 push/pop mnemonic recognition.Jim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139794 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-15Use getPrevSlot() instead of getPrevIndex().Jakob Stoklund Olesen
The getPrevIndex() function moves to the same slot in the previous instruction. For getVNInfoBefore(), we just need the previous slot in the same instruction. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139793 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-15Speed up LiveIntervals::shrinkToUse with some caching.Jakob Stoklund Olesen
Blocks with multiple PHI successors only need to go on the worklist once. Use a SmallPtrSet to track the live-out blocks that have already been handled. This is a lot faster than the two live range check we would otherwise do. Also stop recomputing hasPHIKill flags. Like RenumberValues(), it is conservatively correct to leave them in, and they are not used for anything important. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139792 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-15Revert r139782, "RemoveCopyByCommutingDef doesn't need hasPHIKill()."Jakob Stoklund Olesen
It does, after all. RemoveCopyByCommutingDef rewrites the uses of one particular value number in A. It doesn't know how to rewrite phi uses, so there can't be any. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139787 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-15DWARF: Make DIE printing more bulletproof.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139786 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-15Despite what the GCC wiki says, a quick search shows thatNick Lewycky
DW_AT_GNU_template_name = 0x2110, not 0x2108. That would explain those attr #0x2110 under the DW_TAG_GNU_template_template_param I'm seeing. Migrate from documented values to reality. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139785 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-15Add some more DWARF extensions from:Nick Lewycky
1. http://gcc.gnu.org/wiki/TemplateParmsDwarf 2. ftp://ftp.software.ibm.com/software/os390/czos/dwarf/mips_extensions.pdf git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139784 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-15Stop verifying hasPHIKill() flags.Jakob Stoklund Olesen
There is only one legitimate use remaining, in addIntervalsForSpills(). All other calls to hasPHIKill() are only used to update PHIKill flags. The addIntervalsForSpills() function is part of the old spilling framework, only used by linearscan. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139783 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-15RemoveCopyByCommutingDef doesn't need hasPHIKill().Jakob Stoklund Olesen
Instead, let HasOtherReachingDefs() test for defs in B that overlap any phi-defs in A as well. This test is slightly different, but almost identical. A perfectly precise test would only check those phi-defs in A that are reachable from AValNo. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139782 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-15It is safe to remat a value killed by phis.Jakob Stoklund Olesen
The source live range is recomputed using shrinkToUses() which does handle phis correctly. The hasPHIKill() condition was relevant in the old days when ReMaterializeTrivialDef() tried to recompute the live range itself. The shrinkToUses() function will mark the original def as dead when no more uses and phi kills remain. It is then removed by runOnMachineFunction(). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139781 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-15Leave hasPHIKill flags alone in LiveInterval::RenumberValues.Jakob Stoklund Olesen
It is conservatively correct to keep the hasPHIKill flags, even after deleting PHI-defs. The calculation can be very expensive after taildup has created a quadratic number of indirectbr edges in the CFG, and the hasPHIKill flag isn't used for anything after RenumberValues(). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139780 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-15Update Dwarf enums list for DWARF 4.Nick Lewycky
Note that DW_TAG_rvalue_reference_type is officially 0x42, not 0x41. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139779 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-15DWARF: Print the number for unknown abbrev fields.Benjamin Kramer
Thanks Nick! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139778 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-15DWARF: Fail gracefully when encountering unknown values in an abbrev.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139777 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-15Give structs with virtual methods a virtual destructor.Nick Lewycky
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139776 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-15DWARF: Silence GCC -Wsign-compare warning.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139775 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-15DWARF: Fix indentation.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139774 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-15DWARF: Include <algorithm> explicitly.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139773 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-15DWARF: Add basic support for line tables.Benjamin Kramer
The llvm-dwarfdump output isn't very verbose yet. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139771 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-15Make demanded-elt simplification for shufflevector slightly stronger. ↵Eli Friedman
Spotted by inspection. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139768 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-15[regcoalescing] bug fix for RegistersDefinedFromSameValue.Andrew Trick
An improper SlotIndex->VNInfo lookup was leading to unsafe copy removal. Fixes PR10920 401.bzip2 miscompile with no IV rewrite. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139765 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-14Fix the code creating VZEXT_LOAD so that it creates the right memoperand. ↵Eli Friedman
Issue spotted in -debug output. I can't think of any practical effects at the moment, but it might matter if we start doing more aggressive alias analysis in CodeGen. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139758 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-14Thumb2 assembly parsing and encoding for PLI.Jim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139757 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-14Thumb2 assembly parsing and encoding for PLD.Jim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139756 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-14Update the comment for system_temp_directory() to indicate when itDouglas Gregor
will ignore the erasedOnReboot option, and properly escape the backslash in "C:\TEMP". Thanks to Aaron and Francois. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139755 91177308-0d34-0410-b5e6-96231b3b80d8