- May 18, 2012
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Kevin Enderby authored
containing no symbols. Fixed the crash and fixed it not disassembling anything. llvm-svn: 157031
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Jakob Stoklund Olesen authored
This is the same as the other tests: Clever tricks are required to make the arguments and return value line up in a single-instruction function. It rarely happens in real life. We have plenty other examples of this behavior. llvm-svn: 157030
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Jakob Stoklund Olesen authored
This option has been disabled for a while, and it is going away so I can clean up the coalescer code. The tests that required physreg joining to be enabled were almost all of the form "tiny function with interference between arguments and return value". Such functions are usually inlined in the real world. The problem exposed by phys_subreg_coalesce-3.ll is real, but fairly rare. llvm-svn: 157027
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Nuno Lopes authored
llvm-svn: 157024
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Andrew Trick authored
llvm-svn: 157020
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Kevin Enderby authored
the 0b10 mask encoding bits. Make MSR APSR writes without a _<bits> qualifier an alias for MSR APSR_nzcvq even though ARM as deprecated it use. Also add support for suffixes (_nzcvq, _g, _nzcvqg) for APSR versions. Some FIXMEs in the code for better error checking when versions shouldn't be used. rdar://11457025 llvm-svn: 157019
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- May 17, 2012
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Danil Malyshev authored
- Added HOST_ARCH to Makefile.config.in The HOST_ARCH will be used by MCJIT tests filter, because MCJIT supported only x86 and ARM architectures now. llvm-svn: 157015
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Bill Wendling authored
llvm-svn: 157011
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Andrew Trick authored
llvm-svn: 157007
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Andrew Trick authored
Introduce the basic strategy for register pressure scheduling. 1) Respect target limits at all times. 2) Indentify critical register classes (pressure sets). Track pressure within the scheduled region. Avoid increasing scheduled pressure for critical registers. 3) Avoid exceeding the max pressure of the region prior to scheduling. Added logic for picking between the top and bottom ready Q's based on regpressure heuristics. Status: functional but needs to be asjusted to achieve good results. llvm-svn: 157006
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Andrew Trick authored
llvm-svn: 157005
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Andrew Trick authored
llvm-svn: 157004
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Andrew Trick authored
llvm-svn: 157003
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Andrew Trick authored
llvm-svn: 157002
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Jakob Stoklund Olesen authored
RegisterCoalescer set <undef> flags on all operands of copy instructions that are scheduled to be removed. This is so they won't affect shrinkToUses() by introducing false register reads. Make sure those <undef> flags are never cleared, or shrinkToUses() could cause live intervals to end at instructions about to be deleted. This would be a lot simpler if RegisterCoalescer could just erase joined copies immediately instead of keeping all the to-be-deleted instructions around. This fixes PR12862. Unfortunately, bugpoint can't create a sane test case for this. Like many other coalescer problems, this failure depends of a very fragile series of events. <rdar://problem/11474428> llvm-svn: 157001
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Jakob Stoklund Olesen authored
Make sure useless (def-only) intervals also get verified. llvm-svn: 157000
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Bill Wendling authored
bugpoint-ing, it may turn into something else. llvm-svn: 156998
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Evandro Menezes authored
llvm-svn: 156996
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Chris Lattner authored
separate side table, using the handy SequenceToOffsetTable class. This encodes all these weird things into another 256 bytes, allowing all intrinsics to be encoded this way. llvm-svn: 156995
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Tim Northover authored
Patch by Meador Inge. llvm-svn: 156989
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Manuel Klimek authored
llvm-svn: 156986
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Stepan Dyatkovskiy authored
SelectionDAGBuilder: CaseBlock, CaseRanges and CaseCmp changed representation of Low and High from signed to unsigned. Since unsigned ints usually simpler, faster and allows to reduce some extra signed bit checks needed before <,>,<=,>= comparisons. llvm-svn: 156985
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Chris Lattner authored
for future expansion, no functionality change yet though. llvm-svn: 156979
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Chris Lattner authored
are only rejected because they can't be encoded into a 32-bit unit, not because they contain an unencodable feature. llvm-svn: 156978
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Chris Lattner authored
intrinsics that use passed-in arguments. llvm-svn: 156977
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Chris Lattner authored
compatibility with LLVM 2.x bitcode files. llvm-svn: 156976
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Francois Pichet authored
llvm-svn: 156975
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Francois Pichet authored
llvm-svn: 156973
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Jakob Stoklund Olesen authored
TableGen already computes register units as the basic unit of interference. We can use that to compute the set of overlapping registers. This means that we can easily compute overlap sets for one register at a time. There is no benefit to computing all registers at once. llvm-svn: 156960
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Akira Hatanaka authored
llc to recognize MIPS16 as a MIPS ASE extension. -mips16 will mean the mips16 ASE for mips32 by default. As part of fixing of adding this we discovered some small changes that need to be made to MipsInstrInfo::storeRegToStackSLot and MipsInstrInfo::loadRegFromStackSlot. We were using some "==" equality tests where in fact we should have been using Mips::<regclas>.hasSubClassEQ instead, per suggestion of Jakob Stoklund Olesen. Patch by Reed Kotler. llvm-svn: 156958
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Eric Christopher authored
llvm-svn: 156955
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- May 16, 2012
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Jakob Stoklund Olesen authored
When widening an existing <def,reads-undef> operand to a super-register, it may be necessary to clear the <undef> flag because the wider register is now read-modify-write through the instruction. Conversely, it may be necessary to add an <undef> flag when the coalescer turns a full-register def into a sub-register def, but the larger register wasn't live before the instruction. This happens in test/CodeGen/ARM/coalesce-subregs.ll, but the test is too small for the <undef> flags to affect the generated code. llvm-svn: 156951
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Simon Atanasyan authored
on MIPS where they are not implemented. llvm-svn: 156935
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Danil Malyshev authored
Added LLIMCJITMemoryManager to the lli. This manager will be used for MCJIT instead of DefaultJIMMemoryManager. It's more flexible for MCJIT tasks, in addition it's provides a invalidation instruction cache for code sections which will be used before JIT code will be executed. llvm-svn: 156933
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Benjamin Kramer authored
llvm-svn: 156917
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Duncan Sands authored
named metadata list, unlike all the other global objects (global variables, functions, aliases), so add that for consistency. llvm-svn: 156915
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Chandler Carruth authored
options, to enable easier testing of the innards of LLVM that are enabled by such optimization strategies. Note that this doesn't provide the (much needed) function attribute support for -Oz (as opposed to -Os), but still seems like a positive step to better test the logic that Clang currently relies on. Patch by Patrik Hägglund. llvm-svn: 156913
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Duncan Sands authored
llvm-svn: 156909
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Chris Lattner authored
generated code (for Intrinsic::getType) into a table. This handles common cases right now, but I plan to extend it to handle all cases and merge in type verification logic as well in follow-on patches. llvm-svn: 156905
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Chris Lattner authored
llvm-svn: 156902
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