Add opposite_of and inverse_opt to support -fno- style options.  This
is necessary for eventual gcc commmand line compatibility.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63384 91177308-0d34-0410-b5e6-96231b3b80d8

Use sublw for comparison with literals instead of subwf.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63382 91177308-0d34-0410-b5e6-96231b3b80d8

When PerformBuildVectorCombine, avoid creating a X86ISD::VZEXT_LOAD of
an illegal type.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63380 91177308-0d34-0410-b5e6-96231b3b80d8

Enable emitting of constant values in non-default address space as well. The APIs emitting constants now take an additional parameter signifying the address space in which to emit. The APIs like getData8BitsDirective() etc are made virtual enabling targets to be able to define appropirate directivers for various sizes and address spaces.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63377 91177308-0d34-0410-b5e6-96231b3b80d8

Propagate debug loc info in SimplifyNodeWithTwoResults.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63376 91177308-0d34-0410-b5e6-96231b3b80d8

Propagate debug loc info for MULHS.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63375 91177308-0d34-0410-b5e6-96231b3b80d8

Propagate debug loc info for SREM and UREM.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63374 91177308-0d34-0410-b5e6-96231b3b80d8

Propagate debug loc info for UDIV.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63373 91177308-0d34-0410-b5e6-96231b3b80d8

Propagate debug loc info for SDIV.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63372 91177308-0d34-0410-b5e6-96231b3b80d8

Forgot to propagate debug loc info here.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63371 91177308-0d34-0410-b5e6-96231b3b80d8

Fix a post-RA scheduling dependency bug.

If a MachineInstr doesn't have a memoperand but has an opcode that
is known to load or store, assume its memory reference may alias
*anything*, including stack slots which the compiler completely
controls.

To partially compensate for this, teach the ScheduleDAG building
code to do basic getUnderlyingValue analysis. This greatly
reduces the number of instructions that require restrictive
dependencies. This code will need to be revisited when we start
doing real alias analysis, but it should suffice for now.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63370 91177308-0d34-0410-b5e6-96231b3b80d8

Propagate debug loc info for MUL.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63369 91177308-0d34-0410-b5e6-96231b3b80d8

Propagate debug loc info in SUB.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63368 91177308-0d34-0410-b5e6-96231b3b80d8

Propagate debug loc info in ADDC and ADDE.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63367 91177308-0d34-0410-b5e6-96231b3b80d8

Propagate debug loc info in DAG combine's "ADD".

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63366 91177308-0d34-0410-b5e6-96231b3b80d8

- Propagate debug loc info in combineSelectAndUse().
- Modify ReassociateOps so that the resulting SDValue is what the comment claims
  it is.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63365 91177308-0d34-0410-b5e6-96231b3b80d8

Add some comments.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63364 91177308-0d34-0410-b5e6-96231b3b80d8

Fix a bug in getMaxValue/getMinValue to pass the right signedness the
the constructed APSInt, patch suggested by Ben Laurie!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63362 91177308-0d34-0410-b5e6-96231b3b80d8

Enable target tripple.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63361 91177308-0d34-0410-b5e6-96231b3b80d8

Linux and other target's  encoding for DW_AT_declaration may not match.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63360 91177308-0d34-0410-b5e6-96231b3b80d8

Propagate debug info when building SelectionDAG.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63359 91177308-0d34-0410-b5e6-96231b3b80d8

Remove dead code, again.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63358 91177308-0d34-0410-b5e6-96231b3b80d8

Remove dead code.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63357 91177308-0d34-0410-b5e6-96231b3b80d8

Add DW_AT_declaration for class methods.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63356 91177308-0d34-0410-b5e6-96231b3b80d8

Propagate debug location info for the token factor.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63355 91177308-0d34-0410-b5e6-96231b3b80d8

Add dump() routines to help debug debug info :)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63353 91177308-0d34-0410-b5e6-96231b3b80d8

Add DebugLoc propagation to some of the methods in DAG combiner.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63350 91177308-0d34-0410-b5e6-96231b3b80d8

Explain why this is here.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63342 91177308-0d34-0410-b5e6-96231b3b80d8

XFAIL this test.  It only worked before because of a bug in the spill point selection code.  Not deleting because
it should be possible to enhance the selection code to handle this in the future.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63340 91177308-0d34-0410-b5e6-96231b3b80d8

Correct the algorithms for choosing spill and restore points so that we don't try to insert loads/stores between call frame setup and the actual call.

This fixes the last known failure for the pre-alloc-splitter.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63339 91177308-0d34-0410-b5e6-96231b3b80d8

Explicitly add PseudoSourceValue information when lowering
BUILD_VECTOR and conversions to stack operations.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63333 91177308-0d34-0410-b5e6-96231b3b80d8

Make a few things const, fix some comments, and simplify
some assertions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63328 91177308-0d34-0410-b5e6-96231b3b80d8

Fix windows build, patch by Marius Wachtler!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63325 91177308-0d34-0410-b5e6-96231b3b80d8

Local register allocator shouldn't assume only the entry and landing pad basic blocks have live-ins.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63323 91177308-0d34-0410-b5e6-96231b3b80d8

Fix two typos that Duncan spotted in a comment.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63312 91177308-0d34-0410-b5e6-96231b3b80d8

In the case of an extractelement on an insertelement value,
the element indices may be equal if either one is not a
constant.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63311 91177308-0d34-0410-b5e6-96231b3b80d8

Add a always_inline test case.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63304 91177308-0d34-0410-b5e6-96231b3b80d8

Revert r63273. This was already implemented by Dale. There's no need for my
change.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63301 91177308-0d34-0410-b5e6-96231b3b80d8

Add a test case for Chris lvalue alignment fixes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63300 91177308-0d34-0410-b5e6-96231b3b80d8

Fix an issue where restores could be inserted after a terminator instruction,
and an iterator invalidation issue.

FreeBench/pifft no longer miscompiles with these fixes!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63293 91177308-0d34-0410-b5e6-96231b3b80d8

Comments are good. :-)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63276 91177308-0d34-0410-b5e6-96231b3b80d8

Add support for aggressive load-use-store folding.  This takes care of the
vast majority of code size regressions introduced by pre-alloc-splitting.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63274 91177308-0d34-0410-b5e6-96231b3b80d8

- Add DebugLoc to getTargetNode().
- Modify TableGen to add the DebugLoc when calling getTargetNode.

(The light-weight wrappers are only temporary. The non-DebugLoc version will be
removed once the whole debug info stuff is finished with.)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63273 91177308-0d34-0410-b5e6-96231b3b80d8

Fix PR3424, a static constructor ordering issue.  Patch by Robert Schuster!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63269 91177308-0d34-0410-b5e6-96231b3b80d8

Exit with nice warnings when register allocator run out of registers.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63267 91177308-0d34-0410-b5e6-96231b3b80d8

Make x86's BT instruction matching more thorough, and add some
dagcombines that help it match in several more cases. Add
several more cases to test/CodeGen/X86/bt.ll. This doesn't
yet include matching for BT with an immediate operand, it
just covers more register+register cases.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63266 91177308-0d34-0410-b5e6-96231b3b80d8

Move the code that starts printing the Select_* functions
after the code that sorts the patterns. This doesn't
affect the output, but it makes the code a little easier
to follow.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63265 91177308-0d34-0410-b5e6-96231b3b80d8

A slight compile time optimization. If the caller knows there isn't a free register getReg() should not call getFreeReg().

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63263 91177308-0d34-0410-b5e6-96231b3b80d8

Add DebugLoc-sensitive versions of many node creation
functions.  Currently omitted:  memcpy, memmove, memset.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63259 91177308-0d34-0410-b5e6-96231b3b80d8

Fix comment about removeRange.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63255 91177308-0d34-0410-b5e6-96231b3b80d8

Fixed lowering of v816 shuffles.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63252 91177308-0d34-0410-b5e6-96231b3b80d8

Make test platform agnostic.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63247 91177308-0d34-0410-b5e6-96231b3b80d8

Add DebugLoc to the getNode() methods.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63245 91177308-0d34-0410-b5e6-96231b3b80d8

Give this test an explicit target, to make it host-independent.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63244 91177308-0d34-0410-b5e6-96231b3b80d8

SDOperand has been renamed to SDValue. SDNode::Val is now
accessed via SDNode::getNode.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63240 91177308-0d34-0410-b5e6-96231b3b80d8

Add more comments describing SDNode operator codes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63239 91177308-0d34-0410-b5e6-96231b3b80d8

Add DebugLoc-aware constructors for SDNode derived
classes (those that reasonably have a DebugLoc
associated with them).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63236 91177308-0d34-0410-b5e6-96231b3b80d8

Add some comments on ISD::NodeType.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63234 91177308-0d34-0410-b5e6-96231b3b80d8

Do not forget to derived type while constructing an array type.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63233 91177308-0d34-0410-b5e6-96231b3b80d8

Fix some issues with volatility, move "CanConvertToScalar" check
after the others.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63227 91177308-0d34-0410-b5e6-96231b3b80d8

strengthen this test.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63222 91177308-0d34-0410-b5e6-96231b3b80d8

Fixed extract element when the result needs to be promoted and the input widened.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63217 91177308-0d34-0410-b5e6-96231b3b80d8

Delete unnecessary elses.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63214 91177308-0d34-0410-b5e6-96231b3b80d8

Enable PACKAGE_VERSION in cmake builds, this unbreaks the clang build with cmake.
Patch by Piotr Rak!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63213 91177308-0d34-0410-b5e6-96231b3b80d8

Make isOperationLegal do what its name suggests, and introduce a
new isOperationLegalOrCustom, which does what isOperationLegal
previously did.

Update a bunch of callers to use isOperationLegalOrCustom
instead of isOperationLegal. In some case it wasn't obvious
which behavior is desired; when in doubt I changed then to
isOperationLegalOrCustom as that preserves their previous
behavior.

This is for the second half of PR3376.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63212 91177308-0d34-0410-b5e6-96231b3b80d8

Formatting.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63199 91177308-0d34-0410-b5e6-96231b3b80d8

Rename getAnalysisToUpdate to getAnalysisIfAvailable.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63198 91177308-0d34-0410-b5e6-96231b3b80d8

Fix PR3415 (infinite loop in EscapeAnalysis) by
deleting the escape analysis pass.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63197 91177308-0d34-0410-b5e6-96231b3b80d8

The memory alignment requirement on some of the mov{h|l}p{d|s} patterns are 16-byte. That is overly strict. These instructions read / write f64 memory locations without alignment requirement.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63195 91177308-0d34-0410-b5e6-96231b3b80d8

Added sse test patterns for r62979 and r63193.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63194 91177308-0d34-0410-b5e6-96231b3b80d8

Add shuffle splat pattern for x86 sse shifts.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63193 91177308-0d34-0410-b5e6-96231b3b80d8

Typo.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63174 91177308-0d34-0410-b5e6-96231b3b80d8

Update the generated docs.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63173 91177308-0d34-0410-b5e6-96231b3b80d8

Add three new option properties.

Adds new option properties 'multi_val', 'one_or_more' and 'zero_or_one'.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63172 91177308-0d34-0410-b5e6-96231b3b80d8

Clarify comment.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63171 91177308-0d34-0410-b5e6-96231b3b80d8

Use ValueType::bitsLT to simplify some code.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63170 91177308-0d34-0410-b5e6-96231b3b80d8

Use ZERO_EXTEND instead of ANY_EXTEND when promoting
shift amounts, to avoid implicitly assuming that
target architectures will ignore the high bits.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63169 91177308-0d34-0410-b5e6-96231b3b80d8

Comment fixes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63164 91177308-0d34-0410-b5e6-96231b3b80d8

Suppress a compile time warning.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63161 91177308-0d34-0410-b5e6-96231b3b80d8

Embalm my ideas of how things should work.  Not that
anyone will pay attention.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63155 91177308-0d34-0410-b5e6-96231b3b80d8

Add type DIE into appropriate context DIE.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63154 91177308-0d34-0410-b5e6-96231b3b80d8

Add a DebugLoc field and some simple accessors.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63152 91177308-0d34-0410-b5e6-96231b3b80d8

Reorder args, constify.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63151 91177308-0d34-0410-b5e6-96231b3b80d8

Add testcase for r63142.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63149 91177308-0d34-0410-b5e6-96231b3b80d8

Treat [1 x i8] zeroinitializer as a C string, placing such stuff into
mergeable string section. I don't see any bad impact of such decision
(rather then placing it into mergeable const section, as it was before),
but at least Darwin linker won't complain anymore.

The problem in LLVM is that we don't have special type for string constants
(like gcc does). Even more, we have two separate types: ConstatArray for non-null
strings and ConstantAggregateZero for null stuff.... It's a bit weird :)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63142 91177308-0d34-0410-b5e6-96231b3b80d8

Use .empty() instead of comparing .size() with 0.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63139 91177308-0d34-0410-b5e6-96231b3b80d8

Update to latest spelling.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63138 91177308-0d34-0410-b5e6-96231b3b80d8

Add DebugLoc field and simple accessors.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63136 91177308-0d34-0410-b5e6-96231b3b80d8

Refine DebugLoc per review comments.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63132 91177308-0d34-0410-b5e6-96231b3b80d8

Add an assertion to the form of SelectionDAG::getConstant that takes
a uint64_t to verify that the value is in range for the given type,
to help catch accidental overflow. Fix a few places that relied on
getConstant implicitly truncating the value.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63128 91177308-0d34-0410-b5e6-96231b3b80d8

Reformat the allocation-order arrays to a more conventional style.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63121 91177308-0d34-0410-b5e6-96231b3b80d8

Delete redundant return statements.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63120 91177308-0d34-0410-b5e6-96231b3b80d8

Respect the DisableRedZone flag on PowerPC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63119 91177308-0d34-0410-b5e6-96231b3b80d8

Simplify findNonImmUse; return the result using the return value
instead of via a by-reference argument. No functionality change.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63118 91177308-0d34-0410-b5e6-96231b3b80d8

APInt's countLeadingOnes() was broken for negative i128 values,
causing assertion failures in getSExtValue().
Fix it by making highWordBits actually contain what its name says,
and add some more unit-tests for APInt.
This fixes PR3419.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63107 91177308-0d34-0410-b5e6-96231b3b80d8

Make some comments doxygen-friendly.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63104 91177308-0d34-0410-b5e6-96231b3b80d8

Make the pre-split-limit option more useful by using a per-function counter.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63091 91177308-0d34-0410-b5e6-96231b3b80d8

Implement multiple with overflow by 2 with an add instruction.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63090 91177308-0d34-0410-b5e6-96231b3b80d8

Forgot this test case.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63089 91177308-0d34-0410-b5e6-96231b3b80d8

Eliminate unnecessary operands-list traversals.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63088 91177308-0d34-0410-b5e6-96231b3b80d8