Revert 93811 per request.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93818 91177308-0d34-0410-b5e6-96231b3b80d8

Enable code to emit dbg.declare as DEBUG_VALUE
comments (fast isel, X86).  This doesn't seem
to break any functionality, but will introduce
cases where -g affects the generated code.  I'll
be fixing that.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93811 91177308-0d34-0410-b5e6-96231b3b80d8

Add comment that MDNode::getFunction() is not to be used by performance-critical code (currently only used by AsmWriter)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93802 91177308-0d34-0410-b5e6-96231b3b80d8

Make opt -O3 act more like clang -O3 etc., by making the inlining thresholds
match.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93798 91177308-0d34-0410-b5e6-96231b3b80d8

Add some potentially interesting transformations to README.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93797 91177308-0d34-0410-b5e6-96231b3b80d8

- Add getLSDAEncoding to the PowerPC backend.
- Greatly improve the comments to the getLSDAEncoding method.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93796 91177308-0d34-0410-b5e6-96231b3b80d8

make llvm-config more portable to windows versions of perl,
patch by Michael Beck!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93793 91177308-0d34-0410-b5e6-96231b3b80d8

my instcombine transformations to make extension elimination more
aggressive changed the canonical form from sext(trunc(x)) to ashr(lshr(x)),
make sure to transform a couple more things into that canonical form,
and catch a case where we missed turning zext/shl/ashr into a single sext.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93787 91177308-0d34-0410-b5e6-96231b3b80d8

Added a newline at the end of SMLoc.h

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93784 91177308-0d34-0410-b5e6-96231b3b80d8

Changed the comment in the file header for SMLoc
to something more accurate.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93782 91177308-0d34-0410-b5e6-96231b3b80d8

Have FastISel handle llvm.trap().

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93781 91177308-0d34-0410-b5e6-96231b3b80d8

Split SMLoc out in its own header so that it can
be used independently of SourceMgr.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93780 91177308-0d34-0410-b5e6-96231b3b80d8

Minor cleanup for jump table printing. Need a reference, not a pointer, for
printing via <<. Otherwise we just print the pointer value.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93777 91177308-0d34-0410-b5e6-96231b3b80d8

filecheckize this.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93776 91177308-0d34-0410-b5e6-96231b3b80d8

filecheckize

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93775 91177308-0d34-0410-b5e6-96231b3b80d8

remove a redundant test, filecheckize another.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93774 91177308-0d34-0410-b5e6-96231b3b80d8

Canonicalize -1 - x to ~x.

Instcombine does this but apparently there are situations where this pattern will escape the optimizer and / or created by isel. Here is a case that's seen in JavaScriptCore:
  %t1 = sub i32 0, %a
  %t2 = add i32 %t1, -1
The dag combiner pattern: ((c1-A)+c2) -> (c1+c2)-A
will fold it to -1 - %a.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93773 91177308-0d34-0410-b5e6-96231b3b80d8

update mkpatch, patch by Garrison Venn!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93771 91177308-0d34-0410-b5e6-96231b3b80d8

Make findDbgDeclare/findDbgGlobalDeclare local static functions; avoid Elts array

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93764 91177308-0d34-0410-b5e6-96231b3b80d8

Simplify MDNode::getFunction() and assertLocalFunction() by avoiding extra Function* variable and smallptrset since function-local metadata cannot be cyclic

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93762 91177308-0d34-0410-b5e6-96231b3b80d8

The most significant encoding bit of GPR:$src or GPR:$dst was over-specified in
the various MOV (register) instructions (16-bit Thumb), including tBRIND (the
indirect branch).  Instead of '1', it should be specified as '?', because GPR
only specifies the register class, which includes both hi-and-lo registers.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93759 91177308-0d34-0410-b5e6-96231b3b80d8

Patch by David Conrad:

"On ARMv6T2 this turns cttz into rbit, clz instead of the 4 instruction
 sequence it is now."

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93758 91177308-0d34-0410-b5e6-96231b3b80d8

While mapping llvm.dbg.declare intrinsic manually map its operand, if possible,
because it points to an alloca instruction through metadata.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93757 91177308-0d34-0410-b5e6-96231b3b80d8

reject some invalid IR.  We already assert and reject this from the
.ll parser, but PR6070 wants it in the verifier too.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93756 91177308-0d34-0410-b5e6-96231b3b80d8

Add FIXME comment.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93755 91177308-0d34-0410-b5e6-96231b3b80d8

- Add a comment to the callback indicating that it's *extremely* not a good
  idea, but unfortunately necessary.
- Default to using 4-bytes for the LSDA pointer encoding to agree with the
  encoded value in the CIE.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93753 91177308-0d34-0410-b5e6-96231b3b80d8

Make printing of metadata more robust when function is not found (which is the normal situation for non function-local metadata)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93748 91177308-0d34-0410-b5e6-96231b3b80d8

Don't try to build compiler-rt if it happens to be checked out into projects/

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93729 91177308-0d34-0410-b5e6-96231b3b80d8

Unnamed symbol index should be >= 1. This was lost during the mangler refactoring.  Fixes PR6067.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93724 91177308-0d34-0410-b5e6-96231b3b80d8

Fix refacto reported by Nicolas Geoffray.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93723 91177308-0d34-0410-b5e6-96231b3b80d8

Emit spaces after commas in Neon register lists.  This is more consistent
with the rest of the assembly output, is easier to read, and matches the
expected output for gcc's Neon tests.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93703 91177308-0d34-0410-b5e6-96231b3b80d8

switch x86 zerofill emission over to use MCStreamer.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93702 91177308-0d34-0410-b5e6-96231b3b80d8

Change CurrentFnSym to be a non-const pointer since asmprinter mutates it
as it emits code.  Switch .globl directives to use OutStreamer instead of
doing it textually (in x86)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93700 91177308-0d34-0410-b5e6-96231b3b80d8

remove the MAI argument to MCExpr::print and switch overthing to use << when printing them.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93699 91177308-0d34-0410-b5e6-96231b3b80d8

unbreak x86 jump tables with my previous patch.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93698 91177308-0d34-0410-b5e6-96231b3b80d8

now that MCSymbol::print doesn't use it's MAI argument, we can
remove it and change all the code that prints MCSymbols to use
<< instead, which is much simpler and cleaner.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93695 91177308-0d34-0410-b5e6-96231b3b80d8

rename NameNeedsEscaping -> NameNeedsQuoting, eliminate the check
for first character which is a digit, mangler would have taken care
of this already.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93694 91177308-0d34-0410-b5e6-96231b3b80d8

Convert some of the dynamic opcode lookups into static ones.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93693 91177308-0d34-0410-b5e6-96231b3b80d8

stop the CBE from using Mangler::appendMangledName, which is a private function, it is mangling types, which don't matter how they are done.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93692 91177308-0d34-0410-b5e6-96231b3b80d8

fix uninit member, thanks to Benjamin Kramer for identifying the bug.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93691 91177308-0d34-0410-b5e6-96231b3b80d8

Get MCSymbol out of the mangling business, and move all the logic
to Mangler.  Now MCSymbol just decides whether to slap quotes around
a symbol when printing it.

This also fixes some weirdness where two MCSymbols could be created
for the same symbol, if one needed to be mangled and got mangled to
the other one.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93690 91177308-0d34-0410-b5e6-96231b3b80d8

Really fix this. I checked that on ARM I get

PASS: LLVM::FrontendC/pr5406.c (3463 of 5030)

and on X86 I get

XFAIL: LLVM::FrontendC/pr5406.c (3465 of 5030

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93689 91177308-0d34-0410-b5e6-96231b3b80d8

reduce this test and convert to filecheck, hopefully the linux buildbot
will tell me something more useful.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93688 91177308-0d34-0410-b5e6-96231b3b80d8

factor this code better how that the string version of getNameWithPrefix
takes a twine.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93687 91177308-0d34-0410-b5e6-96231b3b80d8

now that mangler is in libtarget, it can use MCAsmInfo instead of clients
having to pass various fields from it in.  Simplify.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93686 91177308-0d34-0410-b5e6-96231b3b80d8

Don't create a (empty) output file, and don't warn about bitcode output
to a console, when --analyze is used.

Similarly, avoid creating an empty output file when --disable-output is used.

Print a warning when the -o option appears with either --analyze or
--disable-output, to indicate that the option is being ignored.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93685 91177308-0d34-0410-b5e6-96231b3b80d8

Switch some functions to take Twines, eliminate uses of StringExtras.h.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93680 91177308-0d34-0410-b5e6-96231b3b80d8

Fix comment.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93679 91177308-0d34-0410-b5e6-96231b3b80d8

The Neon "vtst" instruction takes a suffix that is the element size alone --
adding an "i" to the suffix, indicating that the elements are integers, is
accepted but not part of the standard syntax.  This helps us pass a few more
of the Neon tests from gcc.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93677 91177308-0d34-0410-b5e6-96231b3b80d8

Fix an off-by-one error that caused the chain operand to be dropped from Neon
vector load-lane and store-lane instructions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93673 91177308-0d34-0410-b5e6-96231b3b80d8

Looks like XFAIL has to list every unsupported arch

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93672 91177308-0d34-0410-b5e6-96231b3b80d8

Add test for pr5406

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93671 91177308-0d34-0410-b5e6-96231b3b80d8

Add a note for the macho streamer and remove a used of the mangler from the soon to be defunct machowriter pass.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93670 91177308-0d34-0410-b5e6-96231b3b80d8

Reduce fsub-fadd.ll and merge it into fsub-fsub.ll. Rename fsub-fsub.ll to
fsub.ll and FileCheckify it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93669 91177308-0d34-0410-b5e6-96231b3b80d8

When checking for sret-demotion, it needs to use legal types.  When using the return value of an sret-demoted call, it needs to use possibly illegal types that match the declared Type of the callee.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93667 91177308-0d34-0410-b5e6-96231b3b80d8

Update CMake files for Mangler move.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93665 91177308-0d34-0410-b5e6-96231b3b80d8

move the mangler into libtarget from vmcore.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93664 91177308-0d34-0410-b5e6-96231b3b80d8

fix a warning.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93663 91177308-0d34-0410-b5e6-96231b3b80d8

this doesn't need to suck in Mangler.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93662 91177308-0d34-0410-b5e6-96231b3b80d8

remove obsolete comment.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93661 91177308-0d34-0410-b5e6-96231b3b80d8

bugpoint doesn't need the mangler at all.  DisambiguateGlobalSymbols
dates to a time when two different LLVM values could have the same
name but different types.  Simplify it to just assign names to unnamed
things and let the core symtab resolve duplicates.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93660 91177308-0d34-0410-b5e6-96231b3b80d8

add a thing to investigate.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93659 91177308-0d34-0410-b5e6-96231b3b80d8

remove calls to dead methods.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93657 91177308-0d34-0410-b5e6-96231b3b80d8

reapply the mangler gutting patch.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93656 91177308-0d34-0410-b5e6-96231b3b80d8

remove use of getMangledName.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93655 91177308-0d34-0410-b5e6-96231b3b80d8

unbreak the build.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93654 91177308-0d34-0410-b5e6-96231b3b80d8

Revert 93648.
Mangler::getMangledName is used from lto
Mangler::setUseQuotes is used in the AsmPrinter
Mangler::setSymbolsCanStartWithDigit is used in the AsmPrinter

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93652 91177308-0d34-0410-b5e6-96231b3b80d8

Mangler::getMangledName is now dead, remove it and all the other stuff in Mangler that is now transitively dead.  woo.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93648 91177308-0d34-0410-b5e6-96231b3b80d8

Change DIEObjectLabel to take an MCSymbol instead of std::string.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93647 91177308-0d34-0410-b5e6-96231b3b80d8

rename GetPrivateGlobalValueSymbolStub -> GetSymbolWithGlobalValueBase,
and add an explicit ForcePrivate argument.

Switch FunctionEHFrameInfo to be MCSymbol based instead of string based.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93646 91177308-0d34-0410-b5e6-96231b3b80d8

eliminate uses of getMangledName from AsmPrinter.cpp, last up is
dwarf emission which is going to be more invasive.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93645 91177308-0d34-0410-b5e6-96231b3b80d8

switch liblto to use the new getNameWithPrefix() method instead of getMangledName.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93643 91177308-0d34-0410-b5e6-96231b3b80d8

add an inefficient version of getNameWithPrefix that returns an std::string.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93641 91177308-0d34-0410-b5e6-96231b3b80d8

Revive dead assert.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93638 91177308-0d34-0410-b5e6-96231b3b80d8

Provide magic define on mingw to not generate inline variants of ctyper functions.
Otherwise we'll end with random cyclic deps between libraries due to this.
Proposed by Gianluigi Tiesi!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93635 91177308-0d34-0410-b5e6-96231b3b80d8

Fix PR6047

Nodes that had children outside of the post dominator tree (infinite loops)
where removed from the post dominator tree. This seems to be wrong. Leave them
in the tree.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93633 91177308-0d34-0410-b5e6-96231b3b80d8

Create Generic DOTGraphTraits Printer/Viewer

Move the DOTGraphTraits dotty printer/viewer templates, that were developed for
the dominance tree into their own header file. This will allow reuse in future
passes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93632 91177308-0d34-0410-b5e6-96231b3b80d8

No need to use WeakVH here.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93631 91177308-0d34-0410-b5e6-96231b3b80d8

Replace DebugLocTuple with DILocation.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93630 91177308-0d34-0410-b5e6-96231b3b80d8

fix build failure.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93628 91177308-0d34-0410-b5e6-96231b3b80d8

remove a couple of actively incorrect uses of getMangledName.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93627 91177308-0d34-0410-b5e6-96231b3b80d8

this doesn't need the mangler.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93626 91177308-0d34-0410-b5e6-96231b3b80d8

more string -> sym, getMangledName is now gone from this file.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93624 91177308-0d34-0410-b5e6-96231b3b80d8

use symbols instead of strings, eliminating a bunch of getMangledName
calls.  Add FIXMEs about a bunch of nondeterminism in stub output.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93621 91177308-0d34-0410-b5e6-96231b3b80d8

simplify some code.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93619 91177308-0d34-0410-b5e6-96231b3b80d8

Retrying r91337:

The CIE says that the LSDA point in the FDE section is an "sdata4". That's fine,
but we need it to actually be 4-bytes in the FDE for some platforms. Allow
individual platforms to decide for themselves.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93616 91177308-0d34-0410-b5e6-96231b3b80d8

eliminate uses of mangler and simplify code.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93615 91177308-0d34-0410-b5e6-96231b3b80d8

fix inverted conditional

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93614 91177308-0d34-0410-b5e6-96231b3b80d8

CurrentFnName is now dead, remove it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93612 91177308-0d34-0410-b5e6-96231b3b80d8

get pic16 off CurrentFnName

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93610 91177308-0d34-0410-b5e6-96231b3b80d8

remove the string form of printVisibility.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93609 91177308-0d34-0410-b5e6-96231b3b80d8

switch more stuff onto MCSymbols

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93608 91177308-0d34-0410-b5e6-96231b3b80d8

Temporarily revert r93581. It was causing failures in the ExecutionEngine tests
on the build bots.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93606 91177308-0d34-0410-b5e6-96231b3b80d8

eliminate uses of deprecated mangler apis

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93605 91177308-0d34-0410-b5e6-96231b3b80d8

this teestcase takes a long time to crash, remove it.  If someone cares about this, they should file a bug, it's not doing any good as an xfail.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93604 91177308-0d34-0410-b5e6-96231b3b80d8

switch X86 target off CurFunctionName and MCIze more.
Note that the code wasn't calling DecorateCygMingName
when emitting the ".ascii -export" stuff at the end of
file for DLLExported functions.  I don't know if it should
or not, but I'm preserving behavior.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93603 91177308-0d34-0410-b5e6-96231b3b80d8

Treat indirect branches specially only during pre-regalloc tail duplication,
not during the later post-alloc tail duplication.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93600 91177308-0d34-0410-b5e6-96231b3b80d8

MCize tis, and make it keep CurrentFnSym up to date with CurrentFnName.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93598 91177308-0d34-0410-b5e6-96231b3b80d8

Run the pre-register allocation tail duplication pass by default.  Remove
the -pre-regalloc-taildup command-line option, and add a new
-disable-early-taildup option.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93597 91177308-0d34-0410-b5e6-96231b3b80d8

revert the x86 part of my last patch, cygwin is mutating CurrentFnName!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93595 91177308-0d34-0410-b5e6-96231b3b80d8