Make x86-64 membarriers work without sse and clean up some of the
uses.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110274 91177308-0d34-0410-b5e6-96231b3b80d8

The two-callsite form of AliasAnalysis::getModRefInfo is documented
to return Ref if the left callsite only reads memory read or written
by the right callsite; fix BasicAliasAnalysis to implement this.

Add AliasAnalysisEvaluator support for testing the two-callsite
form of getModRefInfo.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110270 91177308-0d34-0410-b5e6-96231b3b80d8

and back in. false alarm on the tests from another unrelated local change.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110269 91177308-0d34-0410-b5e6-96231b3b80d8

PR7814: Truncates cannot be ignored for signed comparisons.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110268 91177308-0d34-0410-b5e6-96231b3b80d8

Implement target specific getDebugValueLocation().

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110267 91177308-0d34-0410-b5e6-96231b3b80d8

Coalesce stack slot accesses that arise when spilling both sides of a COPY.
This helps avoid silly code:

    %R0<def = LOAD <fi#5>
    STORE <fi#5>, %R0<kill>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110266 91177308-0d34-0410-b5e6-96231b3b80d8

oops. revert for a moment to clean up tests first.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110259 91177308-0d34-0410-b5e6-96231b3b80d8

Reserve a stack slot if the function adjusts the stack but doesn't
simplify the call frame pseudo instructions. In that situation, the
calculations for estimating the stack size will be way off, leading to
not having an emergency spill slot when we need one. It should be possible
to be more precise about tracking the adjustment values, but not really
necessary for correctness. Upcoming cleanups for PEI in general will
render that moot.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110258 91177308-0d34-0410-b5e6-96231b3b80d8

Checkpoint SplitKit progress.

We are now at a point where we can split around simple single-entry, single-exit
loops, although still with some bugs.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110257 91177308-0d34-0410-b5e6-96231b3b80d8

Implement target specific getDebugValueLocation().

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110256 91177308-0d34-0410-b5e6-96231b3b80d8

Use location entry only of the location described by DBG_VALUE is valid.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110255 91177308-0d34-0410-b5e6-96231b3b80d8

Test case for r110250.  Radar 8264670.  Test case by Fariborz Jahanian!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110254 91177308-0d34-0410-b5e6-96231b3b80d8

Testcase for r110248.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110249 91177308-0d34-0410-b5e6-96231b3b80d8

The EH prepare passes really want to be the last passes run before code-gen.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110248 91177308-0d34-0410-b5e6-96231b3b80d8

Use indirect calls in PowerPC JIT.

See PR5201. There is no way to know if direct calls will be within the allowed
range for BL. Hence emit all calls as indirect when in JIT mode.
Without this long-running applications will fail to JIT on PowerPC with a
relocation failure.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110246 91177308-0d34-0410-b5e6-96231b3b80d8

Fix typo in comment.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110244 91177308-0d34-0410-b5e6-96231b3b80d8

Fix a minor bug which resulted in intermediate calculations
using wider types than are necessary.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110241 91177308-0d34-0410-b5e6-96231b3b80d8

Change this llvm_unreachable to report_fatal_error, since it can
be triggered by valid, if dubious, IR.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110240 91177308-0d34-0410-b5e6-96231b3b80d8

Test case for combination of r110234 & r110235.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110238 91177308-0d34-0410-b5e6-96231b3b80d8

While spilling live registers at the end of block check whether they are used by DBG_VALUE machine instructions or not. If a spilled register is used by DBG_VALUE machine instruction then insert a new DBG_VALUE machine instruction to encode variable's new location on stack.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110235 91177308-0d34-0410-b5e6-96231b3b80d8

If a variable is spilled by code generator then use DW_OP_fbreg to describe its location on stack.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110234 91177308-0d34-0410-b5e6-96231b3b80d8

Experiments show that we can safely increase our unrolling threshold without unduly impacting code size, particularly
since unrolling is not enabled at -Os.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110233 91177308-0d34-0410-b5e6-96231b3b80d8

Add a note about the changing pass registration interface.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110231 91177308-0d34-0410-b5e6-96231b3b80d8

Remove switch for disabling ARM tail calls.  They
seem to be working correctly.  No functional change.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110226 91177308-0d34-0410-b5e6-96231b3b80d8

Add DEBUG message.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110224 91177308-0d34-0410-b5e6-96231b3b80d8

Fix whitespace.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110223 91177308-0d34-0410-b5e6-96231b3b80d8

Update the polygen grammar for linker_private and linker_private_weak,
and add comments about major implemented features.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110215 91177308-0d34-0410-b5e6-96231b3b80d8

Fix a typo in a comment.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110211 91177308-0d34-0410-b5e6-96231b3b80d8

Print a message when a test failure is due to stderr output
alone, rather than just an exit code.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110208 91177308-0d34-0410-b5e6-96231b3b80d8

Remove CVS artifacts.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110207 91177308-0d34-0410-b5e6-96231b3b80d8

Remove CVS artifacts.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110206 91177308-0d34-0410-b5e6-96231b3b80d8

Delete scripts which haven't noticed that CVS has gone away.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110205 91177308-0d34-0410-b5e6-96231b3b80d8

cvsupdate is gone.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110204 91177308-0d34-0410-b5e6-96231b3b80d8

Delete mkpatch. Everything it does is already done by svn diff by default.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110203 91177308-0d34-0410-b5e6-96231b3b80d8

Remove a link which is no longer relevant.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110202 91177308-0d34-0410-b5e6-96231b3b80d8

These tests are no longer stored in *CVS*.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110201 91177308-0d34-0410-b5e6-96231b3b80d8

Enable COFF writer on mingw32 and cygwin.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110200 91177308-0d34-0410-b5e6-96231b3b80d8

call-imm.ll test case regex fix.  Patch by Dimitry Andric!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110199 91177308-0d34-0410-b5e6-96231b3b80d8

Make SPU backend handle insertelement and
store for "half vectors"

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110198 91177308-0d34-0410-b5e6-96231b3b80d8

Print an error message when someone tries -integrated-as on an unsupported target.

- The COFF backend doesn't support MingW/Cygwin at the moment, it'll report an
  error, but it's still much better than random assertions from the MachO backend.
- We want to make ELF the default eventually, it's what the majority of targets use.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110197 91177308-0d34-0410-b5e6-96231b3b80d8

Note some LLVM 2.7 -> 2.8 APIs that changed / got renamed.

I encountered these while upgrading libclamav.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110196 91177308-0d34-0410-b5e6-96231b3b80d8

Add a missing function.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110195 91177308-0d34-0410-b5e6-96231b3b80d8

by Alexander Herz:

"The CWriter::GetValueName() method does not check if a value as an alias
and emits the alias name which will never be defined in the output .c
file (so the output file fails to compile). This can happen if you have
multiple inheritance with several destructors defined by clang (...D0Ev,
...D1Ev, ...D2Ev)."

-- applied with minor tweaks. Thanks!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110194 91177308-0d34-0410-b5e6-96231b3b80d8

Fix build of DataFlow.h

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110193 91177308-0d34-0410-b5e6-96231b3b80d8

Eliminate unnecessary empty string literals.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110183 91177308-0d34-0410-b5e6-96231b3b80d8

Fix a comment.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110181 91177308-0d34-0410-b5e6-96231b3b80d8

Don't construct a std::string with a literal "".

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110180 91177308-0d34-0410-b5e6-96231b3b80d8

Don't print the filename twice in file-not-found errors.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110179 91177308-0d34-0410-b5e6-96231b3b80d8

Fix a comment typo and add more 256-bit intrinsics

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110177 91177308-0d34-0410-b5e6-96231b3b80d8

Change the logic which interprets output on stderr as an error so that
it doesn't modify the exit code or the stdout contents, and so that it
doesn't clutter the output with "Command has output on stderr!".

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110171 91177308-0d34-0410-b5e6-96231b3b80d8

Combine NEON VABD (absolute difference) intrinsics with ADDs to make VABA
(absolute difference with accumulate) intrinsics.  Radar 8228576.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110170 91177308-0d34-0410-b5e6-96231b3b80d8

Don't print "Command output (stdout):" when the command has no output,
and same for stderr, to avoid clutter in the output.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110169 91177308-0d34-0410-b5e6-96231b3b80d8

Use the regular conditional operator syntax instead of a clever hack.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110168 91177308-0d34-0410-b5e6-96231b3b80d8

Remove PointerAccessInfo, which nothing was using.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110167 91177308-0d34-0410-b5e6-96231b3b80d8

Make the makefiles go much faster by using the realpath
builtin instead of shell.  On my 8 core mac pro, this speeds
up a 'make -j8' null build of the lib directory from 1.11s to
0.77s wall time.

Patch by NAKAMURA Takumi!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110166 91177308-0d34-0410-b5e6-96231b3b80d8

fix a win64 encoding problem, patch by Cameron Esfahani!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110164 91177308-0d34-0410-b5e6-96231b3b80d8

Thread const correctness through a bunch of AliasAnalysis interfaces and
eliminate several const_casts.

Make CallSite implicitly convertible to ImmutableCallSite.

Rename the getModRefBehavior for intrinsic IDs to
getIntrinsicModRefBehavior to avoid overload ambiguity with CallSite,
which happens to be implicitly convertible to bool.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110155 91177308-0d34-0410-b5e6-96231b3b80d8

Add support for getting & setting the FPSCR application register on ARM when VFP is enabled.
Add support for using the FPSCR in conjunction with the vcvtr instruction, for controlling fp to int rounding.
Add support for the FLT_ROUNDS_ node now that the FPSCR is exposed.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110152 91177308-0d34-0410-b5e6-96231b3b80d8

The singular of "indices" is "index".

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110135 91177308-0d34-0410-b5e6-96231b3b80d8

Delete an unused function.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110134 91177308-0d34-0410-b5e6-96231b3b80d8

Make instcombine set explicit alignments on load or store
instructions with alignment 0, so that subsequent passes don't
need to bother checking the TargetData ABI size manually.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110128 91177308-0d34-0410-b5e6-96231b3b80d8

CMake: Change somme target library names:

XCore->XCoreGen
PIC16->PIC16CodeGen

After updating your working copy, the first build will fail because it
is using the old library dependencies. Start the build again and it
will work fine.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110127 91177308-0d34-0410-b5e6-96231b3b80d8

CMake: add version control info to PACKAGE_VERSION, if available.

Adds "svn" or "git", depending on the VCS used. If svn, adds the
revision number as well.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110121 91177308-0d34-0410-b5e6-96231b3b80d8

Make AliasAnalysis::getModRefInfo conservative in the face of volatility.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110120 91177308-0d34-0410-b5e6-96231b3b80d8

Oops. Don't normalize spill weights twice.

When the normalizeSpillWeights function was introduced, I forgot to remove this
normalization.

This change could affect register allocation. Hopefully for the better.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110119 91177308-0d34-0410-b5e6-96231b3b80d8

OK, that's it. This test is going away now. But don't worry, I am taking it to a
nice farm in the country where it can play with other tests. And bunnies.

It is not clear what is being tested, and the revision history shows a bunch of
random changes to the expected instruction count. Clearly, we are just fudging
it to pass whenever it fails.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110118 91177308-0d34-0410-b5e6-96231b3b80d8

avoid undefined behavior negating minint.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110117 91177308-0d34-0410-b5e6-96231b3b80d8

Fix a typo Devang noticed.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110115 91177308-0d34-0410-b5e6-96231b3b80d8

avoid undef behavior on minint, fixing PR7783.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110114 91177308-0d34-0410-b5e6-96231b3b80d8

Add an atomic lowering pass

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110113 91177308-0d34-0410-b5e6-96231b3b80d8

Use unary + instead of a separate local variable for working
around std::min vs static const friction.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110112 91177308-0d34-0410-b5e6-96231b3b80d8

Bump cmake_minimum_required to version 2.8

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110110 91177308-0d34-0410-b5e6-96231b3b80d8

build: Add LLVM_NATIVE_ARCHNAME, which has the sensible value, without "Target"
appended.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110109 91177308-0d34-0410-b5e6-96231b3b80d8

Remove the test/mc directory that I accidently added.

This directory conflicts with test/MC on Windows machines.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110105 91177308-0d34-0410-b5e6-96231b3b80d8

MC: Fix symbol fragment offsets in COFF.

Patch by Cameron Esfahani!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110104 91177308-0d34-0410-b5e6-96231b3b80d8

Revert "MC: Fix symbol fragment offsets in COFF."

This reverts commit r110100

Wrong path caps.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110103 91177308-0d34-0410-b5e6-96231b3b80d8

MC: Add time travel support to COFF.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110101 91177308-0d34-0410-b5e6-96231b3b80d8

MC: Fix symbol fragment offsets in COFF.

Patch by Cameron Esfahani!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110100 91177308-0d34-0410-b5e6-96231b3b80d8

Fix CMake build

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110097 91177308-0d34-0410-b5e6-96231b3b80d8

Support x86 AVX 256-bit instruction intrinsics. Right now support all of them, but
as soon as we properly codegen the simple vector operations in clang, remove the
unnecessary builti-ins/intrinsics from clang and llvm.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110094 91177308-0d34-0410-b5e6-96231b3b80d8

Update some comments.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110092 91177308-0d34-0410-b5e6-96231b3b80d8

Introduce a symbolic constant for ~0u for use with AliasAnalysis.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110091 91177308-0d34-0410-b5e6-96231b3b80d8

Add a convenient form of AliasAnalysis::alias for the case where the sizes
are unknown.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110090 91177308-0d34-0410-b5e6-96231b3b80d8

Make SCEVUnknown a CallbackVH, so that it can be notified directly
of Value deletions and RAUWs, instead of relying on ScalarEvolution's
Scalars map being notified, as that's complicated at best, and
insufficient in general.

This means SCEVUnknown needs a non-trivial destructor, so introduce
a mechanism to allow ScalarEvolution to locate all the SCEVUnknowns.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110086 91177308-0d34-0410-b5e6-96231b3b80d8

Diabolical hack to make a test compatible with clang.  (Thanks to Dale!)  Radar 8246180.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110081 91177308-0d34-0410-b5e6-96231b3b80d8

Sketch up a preliminary Type-Based Alias Analysis implementation.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110077 91177308-0d34-0410-b5e6-96231b3b80d8

Fix visitInvokeInst to call visitTerminatorInst, and remove
a redundant check from checkInstruction.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110076 91177308-0d34-0410-b5e6-96231b3b80d8

Add Verifier logic for indirectbr.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110075 91177308-0d34-0410-b5e6-96231b3b80d8

Add a lint check for indirectbr with no successors.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110074 91177308-0d34-0410-b5e6-96231b3b80d8

Add explicit constructors. Patch by Renato Golin.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110072 91177308-0d34-0410-b5e6-96231b3b80d8

Testcase for r110043.  Radar 8246180.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110070 91177308-0d34-0410-b5e6-96231b3b80d8

Early exit and reduce indentation. No functionality change.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110069 91177308-0d34-0410-b5e6-96231b3b80d8

Improve discrimination of unknown libraries from ignored targets on
LLVMConfig.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110065 91177308-0d34-0410-b5e6-96231b3b80d8

explicit_map_components_to_libraries now does not complain when there
is a dependence on an LLVM target that is not included on the build.

When LLVM_TARGETS_TO_BUILD didn't include all the targets, the
function emitted an error like

"Library LLVMArmParser not found in list of llvm libraries."

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110060 91177308-0d34-0410-b5e6-96231b3b80d8

Lets the CMake GUI show a list of possible values for LLVM_USE_CRT

Patch by nobled!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110057 91177308-0d34-0410-b5e6-96231b3b80d8

Fix namespace polution.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110056 91177308-0d34-0410-b5e6-96231b3b80d8

Updated LLVMLibDeps.cmake.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110055 91177308-0d34-0410-b5e6-96231b3b80d8

Free DbgScope created for dead functions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110045 91177308-0d34-0410-b5e6-96231b3b80d8

More SPU v2f32 stuff added: insertelement and shuffle.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110038 91177308-0d34-0410-b5e6-96231b3b80d8

Add preliminary v2f32 support for SPU. Like with v2i32, we just
duplicate the instructions and operate on half vectors.

Also reorder code in SPUInstrInfo.td for better coherency.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110037 91177308-0d34-0410-b5e6-96231b3b80d8