Minor optimization:

Look for situations like this:
%reg1024<def> = MOV r1
%reg1025<def> = MOV r0
%reg1026<def> = ADD %reg1024, %reg1025
r0            = MOV %reg1026
Commute the ADD to hopefully eliminate an otherwise unavoidable copy.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65752 91177308-0d34-0410-b5e6-96231b3b80d8

tweak this to accept asmprinter changes.  I have no way to verify this, hopefully
the buildbot will work.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65750 91177308-0d34-0410-b5e6-96231b3b80d8

simplify handling "don't print top level name" processing, so that we get
stuff like %A = type { %A*} instead of an upref.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65748 91177308-0d34-0410-b5e6-96231b3b80d8

Combine PPC's GetConstantBuildVectorBits and isConstantSplat functions to a new
method in a BuildVectorSDNode "pseudo-class".

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65747 91177308-0d34-0410-b5e6-96231b3b80d8

Fix a pretty awesome bug that only happened in a strange case with anonymous
types.  This was reading the uint for the keyword after the token was advanced.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65743 91177308-0d34-0410-b5e6-96231b3b80d8

walk type symbol table also, so we get:

type opaque ; type %0
%C = type { %0, %0 }

instead of:

%C = type { opaque, opaque }

when appropriate.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65742 91177308-0d34-0410-b5e6-96231b3b80d8

adjust for asmprinter change.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65741 91177308-0d34-0410-b5e6-96231b3b80d8

adjust for asmprinter change.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65740 91177308-0d34-0410-b5e6-96231b3b80d8

adjust test to make it more robust

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65739 91177308-0d34-0410-b5e6-96231b3b80d8

Fix a long-standing bug and misfeature of the disassembler: when dealing with a
stripped .bc file, it didn't make any attempt to try to reuse anonymous types.
This causes an amazing type explosion due to types getting duplicated everywhere
they are referenced and other problems.

This also caused correctness issues, because opaque types are unique for each time
they are uttered in the file.  This means that stripping a .bc file could produce
a .ll file that could not be assembled (e.g. 2009-02-28-StripOpaqueName.ll).

This patch fixes both of these issues.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65738 91177308-0d34-0410-b5e6-96231b3b80d8

move type name population out of TypePrinting class into a static
AsmWriter.cpp method.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65736 91177308-0d34-0410-b5e6-96231b3b80d8

switch to densemap for pointer->word map.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65735 91177308-0d34-0410-b5e6-96231b3b80d8

delete a bunch of duplicated type printing logic, using the type printing
stuff in AsmWriter.cpp for Type::getDescription().

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65734 91177308-0d34-0410-b5e6-96231b3b80d8

make this work when constructed with a null module*

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65733 91177308-0d34-0410-b5e6-96231b3b80d8

add description how the ilist_traits<Instruction> works

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65732 91177308-0d34-0410-b5e6-96231b3b80d8

the module is not required to exist, allow it to default, giving this
class a nice default ctor.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65731 91177308-0d34-0410-b5e6-96231b3b80d8

disable copying and assignment.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65730 91177308-0d34-0410-b5e6-96231b3b80d8

expose TypePrinting as a public API.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65729 91177308-0d34-0410-b5e6-96231b3b80d8

one less space, fixes failure with rebuilt llvm-gcc.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65728 91177308-0d34-0410-b5e6-96231b3b80d8

Fix grammaro.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65727 91177308-0d34-0410-b5e6-96231b3b80d8

rename 'Result' to 'OS' in CalcTypeName for consistency

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65724 91177308-0d34-0410-b5e6-96231b3b80d8

do not embed the raw_ostream into TypePrinting, pass it as an argument to print etc.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65723 91177308-0d34-0410-b5e6-96231b3b80d8

stop calling Type::getDescription().

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65722 91177308-0d34-0410-b5e6-96231b3b80d8

simplifications

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65721 91177308-0d34-0410-b5e6-96231b3b80d8

Change WriteTypeSymbolic to not put a space out before types, also, remove
the old std::ostream version.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65720 91177308-0d34-0410-b5e6-96231b3b80d8

make CalcTypeName take a stream instead of a string to concat onto,
eliminate redundant opaque handling code.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65716 91177308-0d34-0410-b5e6-96231b3b80d8

remove a bunch of nearly-duplicated code.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65715 91177308-0d34-0410-b5e6-96231b3b80d8

fix indentation, remove dead integer case.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65714 91177308-0d34-0410-b5e6-96231b3b80d8

pull calcTypeName into TypePrinting class, make its type stack
be a smallvector instead of vector.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65713 91177308-0d34-0410-b5e6-96231b3b80d8

inline method into its only use and simplify the result.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65712 91177308-0d34-0410-b5e6-96231b3b80d8

simplify condition

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65711 91177308-0d34-0410-b5e6-96231b3b80d8

start refactoring the .ll printer: introduce a new TypePrinting class
and move all related stuff to it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65710 91177308-0d34-0410-b5e6-96231b3b80d8

add a stub for Roadsend PHP

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65705 91177308-0d34-0410-b5e6-96231b3b80d8

don't use the word 'aggregate' with constants, it is confusing.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65702 91177308-0d34-0410-b5e6-96231b3b80d8

don't redescribe bitcast constraints in two places.  It is not valid to
bitcast from one aggregate to another.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65700 91177308-0d34-0410-b5e6-96231b3b80d8

reject 0 element vectors with:
@a = internal constant void bitcast(<0 x i8> <> to void)
                                     ^

Fixes PR3685

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65698 91177308-0d34-0410-b5e6-96231b3b80d8

Update this text for first-class aggregates.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65697 91177308-0d34-0410-b5e6-96231b3b80d8

Fix typo. Found by William Moss.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65693 91177308-0d34-0410-b5e6-96231b3b80d8

There is a way to specify targets that should succeed. It's the "XTARGET"
keyword.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65692 91177308-0d34-0410-b5e6-96231b3b80d8

make traits more flexible by splitting out node-related fragment

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65690 91177308-0d34-0410-b5e6-96231b3b80d8

Last commit accidentially deleted this code.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65679 91177308-0d34-0410-b5e6-96231b3b80d8

Avoid unused parameter warning.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65670 91177308-0d34-0410-b5e6-96231b3b80d8

Unable to say "TARGET: *-*-darwin*"; falling back to "XFAIL: linux,ia64,alpha,sparc".

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65667 91177308-0d34-0410-b5e6-96231b3b80d8

Added another darwin subtarget

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65662 91177308-0d34-0410-b5e6-96231b3b80d8

Testcase to insure C strings go to the cstring
section. Darwin-specific.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65655 91177308-0d34-0410-b5e6-96231b3b80d8

It is possible that subprgoram definition is only encoding return value directly, instsad of an DIArray of all argument types.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65643 91177308-0d34-0410-b5e6-96231b3b80d8

group friendship

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65633 91177308-0d34-0410-b5e6-96231b3b80d8

Refactor TLS code and add some tests. The tests and expected results are:

 pic |  declaration | linkage  | visibility |

!pic |  declaration | external | default    | tls1.ll     tls2.ll     | local exec
 pic |  declaration | external | default    | tls1-pic.ll tls2-pic.ll | general dynamic
!pic | !declaration | external | default    | tls3.ll     tls4.ll     | initial exec
 pic | !declaration | external | default    | tls3-pic.ll tls4-pic.ll | general dynamic

!pic |  declaration | external | hidden     | tls7.ll     tls8.ll     | local exec
 pic |  declaration | external | hidden     | X                       | local dynamic
!pic | !declaration | external | hidden     | tls9.ll     tls10.ll    | local exec
 pic | !declaration | external | hidden     | X                       | local dynamic

!pic |  declaration | internal | default    | tls5.ll     tls6.ll     | local exec
 pic |  declaration | internal | default    | X                       | local dynamic

The ones marked with an X have not been implemented since local dynamic is not implemented.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65632 91177308-0d34-0410-b5e6-96231b3b80d8

document ilist_traits

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65631 91177308-0d34-0410-b5e6-96231b3b80d8

Expand a bit on iplist. If you are more expert on this class, please review!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65630 91177308-0d34-0410-b5e6-96231b3b80d8

update ilist documentation and add some blurb on ilist_node

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65629 91177308-0d34-0410-b5e6-96231b3b80d8

update year

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65628 91177308-0d34-0410-b5e6-96231b3b80d8

fix comments

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65627 91177308-0d34-0410-b5e6-96231b3b80d8

Introduce a new technique for merging BasicBlock with Instruction sentinel by superposition.
This looks dangerous, but isn't because the sentinel is accessed in special way only,
namely the Next and Prev fields of it, and these are guaranteed to exist.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65626 91177308-0d34-0410-b5e6-96231b3b80d8

Update release notes for static analyzer.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65624 91177308-0d34-0410-b5e6-96231b3b80d8

'append_cmd' should split its argument.

Makes '(append_cmd "-foo a b c")' work.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65623 91177308-0d34-0410-b5e6-96231b3b80d8

Silence compiler warning about use of uninitialized variables (in reality these
are always set by reference on the path that uses them.) No functional change.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65621 91177308-0d34-0410-b5e6-96231b3b80d8

Fix compiler warning about uninitialized variables. No functional change.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65620 91177308-0d34-0410-b5e6-96231b3b80d8

Alignment values for i64 and f64 on ppc64 were wrong,
possibly for the reason suggested by the comment.
No wonder it didn't work very well.  This unblocks
bootstrap with assertions on ppc.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65601 91177308-0d34-0410-b5e6-96231b3b80d8

Make sure this test passes on linux-ppc.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65600 91177308-0d34-0410-b5e6-96231b3b80d8

Update another test for the LoopInfo::print changes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65598 91177308-0d34-0410-b5e6-96231b3b80d8

Update this test for the LoopInfo::print changes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65597 91177308-0d34-0410-b5e6-96231b3b80d8

Make LoopInfo::print() identify header, exit, and latch blocks,
and print the loop depth.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65593 91177308-0d34-0410-b5e6-96231b3b80d8

MachineLICM CSE should match destination register classes; avoid hoisting implicit_def's.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65592 91177308-0d34-0410-b5e6-96231b3b80d8

drop some un-edited text for pure and ldc in here.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65579 91177308-0d34-0410-b5e6-96231b3b80d8

remove deleteNode definition, it is inherited in an identical fashion

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65565 91177308-0d34-0410-b5e6-96231b3b80d8

make sure that make fully evaluates variables when determining how compile_c and
friends should work.  This fixes 2006-11-30-Pubnames.cpp and friends on darwin
with the new -mmacosx-version-min change.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65564 91177308-0d34-0410-b5e6-96231b3b80d8

Fix universal builds to not use -XCClinker (a libtool thing) now that
libtool doesn't exist.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65561 91177308-0d34-0410-b5e6-96231b3b80d8

these utils don't need exports.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65559 91177308-0d34-0410-b5e6-96231b3b80d8

disable exports from a bunch more tools, those without plugins.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65558 91177308-0d34-0410-b5e6-96231b3b80d8

no really, use the right path.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65554 91177308-0d34-0410-b5e6-96231b3b80d8

Search for the export map in a place that it can be found.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65552 91177308-0d34-0410-b5e6-96231b3b80d8

use TOOL_NO_EXPORTS, this shrinks the llvm-as binary from 1825296 to
1662184 bytes (~10%)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65551 91177308-0d34-0410-b5e6-96231b3b80d8

strip exported symbols from tools that build with TOOL_NO_EXPORTS=1.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65543 91177308-0d34-0410-b5e6-96231b3b80d8

pass -mmacosx-version-min to the compiler and linker, which makes the build
substantially happier on some versions of Mac OS/X.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65542 91177308-0d34-0410-b5e6-96231b3b80d8

Another great year for LLVM!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65530 91177308-0d34-0410-b5e6-96231b3b80d8

Tabs to spaces presto chango! Pointed out by Duncan Sands.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65523 91177308-0d34-0410-b5e6-96231b3b80d8

Fix typo.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65521 91177308-0d34-0410-b5e6-96231b3b80d8

Fix typo!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65520 91177308-0d34-0410-b5e6-96231b3b80d8

Force 'llvm-config' to go first, optionally followed by lto and gold mixed in
with the rest of the parallel directories.

Build lto when possible on all platforms. Make gold to explicitly depend on
libLTO.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65518 91177308-0d34-0410-b5e6-96231b3b80d8

Remove libtool.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65517 91177308-0d34-0410-b5e6-96231b3b80d8

pic16 notes from Sanjiv.  Just dumped in for now, will rearrange later.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65512 91177308-0d34-0410-b5e6-96231b3b80d8

final random and incoherent notes after making it through all the commits.
Next step: making them more coherent.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65511 91177308-0d34-0410-b5e6-96231b3b80d8

Ignore dbg info intrinsics when folding conditional branch to
conditional branch predecessors.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65509 91177308-0d34-0410-b5e6-96231b3b80d8

Add the function attributes pass during LTO time.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65508 91177308-0d34-0410-b5e6-96231b3b80d8

more notes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65507 91177308-0d34-0410-b5e6-96231b3b80d8

add some notes from Nicolas G.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65503 91177308-0d34-0410-b5e6-96231b3b80d8

Enable stack slot coloring DCE.  Evan's spiller fixes were needed before this could happen.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65501 91177308-0d34-0410-b5e6-96231b3b80d8

ADDS{D|S}rr_Int and MULS{D|S}rr_Int are not commutable. The users of these intrinsics expect the high bits will not be modified.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65499 91177308-0d34-0410-b5e6-96231b3b80d8

The last commit was overly conservative. It's ok to reuse value that's already marked livein.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65498 91177308-0d34-0410-b5e6-96231b3b80d8

If an available register falls through to a succ block, unset the last kill. Sorry, it's impossible to reduce a sensible test case. It basically requires the moon and stars to align in order to cause a failure.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65497 91177308-0d34-0410-b5e6-96231b3b80d8

Fix a duplicated word in a comment.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65496 91177308-0d34-0410-b5e6-96231b3b80d8

Fix a typo that prevents hello.mm from running (and runs hello.m twice).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65493 91177308-0d34-0410-b5e6-96231b3b80d8

Revert BuildVectorSDNode related patches: 65426, 65427, and 65296.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65482 91177308-0d34-0410-b5e6-96231b3b80d8

Fix big-endian codegen bug.  We're splitting up
overly long ints, e.g. i96, into pieces at PHIs
and the nodes that feed into them; however big-endian
reverses the order of the pieces (for some reason), and
wasn't doing it the same way on both sides, so
the pieces didn't match and runtime failures ensued.
Fixes 188.ammp and sqlite3 on ppc32.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65481 91177308-0d34-0410-b5e6-96231b3b80d8

Print variable's display name in dwarf DIE.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65468 91177308-0d34-0410-b5e6-96231b3b80d8

Fix PR3667

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65464 91177308-0d34-0410-b5e6-96231b3b80d8

Check that records with a known constant size are not
copied field by LLVM field if the record has a variable
sized field in it.  The problem is that the LLVM field
will not completely cover the variable sized gcc field.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65463 91177308-0d34-0410-b5e6-96231b3b80d8

Don't block basic block with only SwitchInst to fold into predecessors.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65456 91177308-0d34-0410-b5e6-96231b3b80d8

Flesh out the Ada section a little.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65448 91177308-0d34-0410-b5e6-96231b3b80d8