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2012-08-03Silence unused variable warning in -asserts buildMatt Beaumont-Gay
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161256 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-03Eliminate the VNInfo::hasPHIKill() flag.Jakob Stoklund Olesen
The only real user of the flag was removeCopyByCommutingDef(), and it has been switched to LiveIntervals::hasPHIKill(). All the code changed by this patch was only concerned with computing and propagating the flag. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161255 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-03Make the hasPHIKills flag a computed property.Jakob Stoklund Olesen
The VNInfo::HAS_PHI_KILL is only half supported. We precompute it in LiveIntervalAnalysis, but it isn't properly updated by live range splitting and functions like shrinkToUses(). It is only used in one place: RegisterCoalescer::removeCopyByCommutingDef(). This patch changes that function to use a new LiveIntervals::hasPHIKill() function that computes the flag for a given value number. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161254 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-03Add a configure flag for enabling -Werror on the command lineEric Christopher
while building as requested by Lang. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161253 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-03Add support for detecting libxml for Dmitri's work. He'llEric Christopher
commit code in clang that uses this shortly. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161252 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-03Add a configure option to pass -std=c++11 on the command line.Eric Christopher
rdar://11366674 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161251 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-03Remove a dead prototype.Jakob Stoklund Olesen
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161250 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-03Revert previous patch here, we should instead configure in specificEric Christopher
packages for particular uses. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161246 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-03Delete dead function.Jakob Stoklund Olesen
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161242 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-03Don't delete dead code in TwoAddressInstructionPass.Jakob Stoklund Olesen
This functionality was added before we started running DeadMachineInstructionElim on all targets. It serves no purpose now. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161241 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-03allow 'make CPPFLAGS=<something>' work againGabor Greif
this makes this hack a bit more bearable for poor souls who need to pass custom preprocessor flags to the build process git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161240 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-03Add a BUILD_FLAGS variable so that autoconf checks have a placeEric Christopher
to store additional flag options since too many things can and do override CPPFLAGS. Also, this is exported, unlike CPPFLAGS so it can be actually used elsewhere. This should enable us to remove the AC_SUBSTs in the intel checks, but I have no way of testing it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161233 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-03Fall back to selection DAG isel for calls to builtin functions.Bob Wilson
Fast isel doesn't currently have support for translating builtin function calls to target instructions. For embedded environments where the library functions are not available, this is a matter of correctness and not just optimization. Most of this patch is just arranging to make the TargetLibraryInfo available in fast isel. <rdar://problem/12008746> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161232 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-03Add new getLibFunc method to TargetLibraryInfo.Bob Wilson
This just provides a way to look up a LibFunc::Func enum value for a function name. Alphabetize the enums and function names so we can use a binary search. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161231 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-03[arm-fast-isel] Add support for shl, lshr, and ashr.Jush Lu
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161230 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-03[CMake] Add yaml2obj to check-llvm.NAKAMURA Takumi
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161229 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-03Move the "findUsedStructTypes" functionality outside of the Module class.Bill Wendling
The "findUsedStructTypes" method is very expensive to run. It needs to be optimized so that LTO can run faster. Splitting this method out of the Module class will help this occur. For instance, it can keep a list of seen objects so that it doesn't process them over and over again. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161228 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-03Add support for the ARM GHC calling convention, this patch was in 3.0,Eric Christopher
but somehow managed to be dropped later. Patch by Karel Gardas. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161226 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-02Remove redundant '== true' after a comparison.Richard Trieu
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161223 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-02ARM: Tidy up. Remove unused template parameters.Jim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161222 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-02ARM: More InstAlias refactors to use #NAME#.Jim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161220 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-02Move test yaml files under Inputs until they are converted to be the actualMatt Beaumont-Gay
test files. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161219 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-02ARM: Refactor instaliases using TableGen support for #NAME#.Jim Grosbach
Now that TableGen supports references to NAME w/o it being explicitly referenced in the definition's own name, use that to simplify assembly InstAlias definitions in multiclasses. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161218 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-02X86 Peephole: fold loads to the source register operand if possible.Manman Ren
Add more comments and use early returns to reduce nesting in isLoadFoldable. Also disable folding for V_SET0 to avoid introducing a const pool entry and a const pool load. rdar://10554090 and rdar://11873276 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161207 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-02[yaml2obj] Fix build. Apparently I've gotten too familiar with C++11.Michael J. Spencer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161206 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-02Add yaml2obj. A utility to convert YAML to binaries.Michael J. Spencer
yaml2obj takes a textual description of an object file in YAML format and outputs the binary equivalent. This greatly simplifies writing tests that take binary object files as input. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161205 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-02TableGen: Allow use of #NAME# outside of 'def' names.Jim Grosbach
Previously, def NAME values were only populated, and references to NAME resolved, when NAME was referenced in the 'def' entry of the multiclass sub-entry. e.g., multiclass foo<...> { def prefix_#NAME : ... } It's useful, however, to be able to reference NAME even when the default def name is used. For example, when a multiclass has 'def : Pat<...>' or 'def : InstAlias<...>' entries which refer to earlier instruction definitions in the same multiclass. e.g., multiclass myMulti<RegisterClass rc> { def _r : myI<(outs rc:$d), (ins rc:$r), "r $d, $r", []>; def : InstAlias<\"wilma $r\", (!cast<Instruction>(NAME#\"_r\") rc:$r, rc:$r)>; } git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161198 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-02Compute the critical path length through a trace.Jakob Stoklund Olesen
Whenever both instruction depths and instruction heights are known in a block, it is possible to compute the length of the critical path as max(depth+height) over the instructions in the block. The stored live-in lists make it possible to accurately compute the length of a critical path that bypasses the current (small) block. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161197 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-02Move the code that creates instances of MipsInstrInfo and MipsFrameLowering outAkira Hatanaka
of MipsTargetMachine.cpp. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161191 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-02Set transient stack alignment in constructor of MipsFrameLowering and re-enableAkira Hatanaka
test o32_cc_vararg.ll. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161189 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-02Verify regunit intervals along with virtreg intervals.Jakob Stoklund Olesen
Don't cause regunit intervals to be computed just to verify them. Only check the already cached intervals. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161183 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-02Avoid creating dangling physreg live ranges during DCE.Jakob Stoklund Olesen
LiveRangeEdit::eliminateDeadDefs() can delete a dead instruction that reads unreserved physregs. This would leave the corresponding regunit live interval dangling because we don't have shrinkToUses() for physical registers. Fix this problem by turning the instruction into a KILL instead of deleting it. This happens in a landing pad in test/CodeGen/X86/2012-05-19-CoalescerCrash.ll: %vreg27<def,dead> = COPY %EDX<kill>; GR32:%vreg27 becomes: KILL %EDX<kill> An upcoming fix to the machine verifier will catch problems like this by verifying regunit live intervals. This fixes PR13498. I am not including the test case from the PR since we already have one exposing the problem once the verifier is fixed. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161182 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-02Add TargetRegisterInfo::hasRegUnit().Jakob Stoklund Olesen
This trivial helper function tests if a register contains a register unit. It is similar to regsOverlap(), but with asymmetric arguments. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161180 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-02include/llvm/Analysis/RegionInfo.h: Appease msvc.NAKAMURA Takumi
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161179 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-02Add report() functions that take a LiveInterval argument.Jakob Stoklund Olesen
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161178 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-02Implement the block_iterator of Region based on df_iterator.Hongbin Zheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161177 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-02JIT::runFunction(): add a fast path for functions with a single argument ↵Nuno Lopes
that is a pointer. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161171 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-02Sphinxify the Code Generator document.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161164 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-02Support fpv4 for ARM Cortex-M4.Jiangning Liu
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161163 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-02Fix #13035, a bug around Thumb instruction LDRD/STRD with negative #0 offset ↵Jiangning Liu
index issue. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161162 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-02Fix #13138, a bug around ARM instruction DSB encoding and decoding issue.Jiangning Liu
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161161 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-02Fix #13241, a bug around shift immediate operand for ARM instruction ADR.Jiangning Liu
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161159 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-02llvm/test/CodeGen/X86/fold-pcmpeqd-1.ll: Make sure this is testing without +avx.NAKAMURA Takumi
FIXME: Could +avx be checked here too? git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161156 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-02llvm/test/CodeGen/X86/fold-pcmpeqd-1.ll: Rewrite expressions to pass ↵NAKAMURA Takumi
regardless of PR11031. - Relax to match even if epilogue (pop %ebp) were emitted. - Assume the return value is stored to %xmm0. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161155 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-02X86 Peephole: fold loads to the source register operand if possible.Manman Ren
Machine CSE and other optimizations can remove instructions so folding is possible at peephole while not possible at ISel. This patch is a rework of r160919 and was tested on clang self-host on my local machine. rdar://10554090 and rdar://11873276 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161152 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-02Extract some methods from verifyLiveIntervals.Jakob Stoklund Olesen
No functional change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161149 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-01Also verify RegUnit intervals at uses.Jakob Stoklund Olesen
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161147 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-01X86: mark GATHER instructios as mayLoadManman Ren
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161143 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-01Compute instruction heights through a trace.Jakob Stoklund Olesen
The height on an instruction is the minimum number of cycles from the instruction is issued to the end of the trace. Heights are computed for all instructions in and below the trace center block. The method for computing heights is different from the depth computation. As we visit instructions in the trace bottom-up, heights of used instructions are pushed upwards. This way, we avoid scanning long use lists, looking for uses in the current trace. At each basic block boundary, a list of live-in registers and their minimum heights is saved in the trace block info. These live-in lists are used when restarting depth computations on a trace that converges with an already computed trace. They will also be used to accurately compute the critical path length. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161138 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-01ARM: Remove redundant instalias.Jim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161134 91177308-0d34-0410-b5e6-96231b3b80d8
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