llvm-svn: 44304

llvm-svn: 44303

among others.

llvm-svn: 44302

Improve a comment.
Unbreak Duncan's carefully written path compression where I didn't realize
what was happening!

llvm-svn: 44301

1) Change the interface to TargetLowering::ExpandOperationResult to 
   take and return entire NODES that need a result expanded, not just
   the value.  This allows us to handle things like READCYCLECOUNTER,
   which returns two values.
2) Implement (extremely limited) support in LegalizeDAG::ExpandOp for MERGE_VALUES.
3) Reimplement custom lowering in LegalizeDAGTypes in terms of the new
   ExpandOperationResult.  This makes the result simpler and fully 
   general.
4) Implement (fully general) expand support for MERGE_VALUES in LegalizeDAGTypes.
5) Implement ExpandOperationResult support for ARM f64->i64 bitconvert and ARM
   i64 shifts, allowing them to work with LegalizeDAGTypes.
6) Implement ExpandOperationResult support for X86 READCYCLECOUNTER and FP_TO_SINT,
   allowing them to work with LegalizeDAGTypes.

LegalizeDAGTypes now passes several more X86 codegen tests when enabled and when
type legalization in LegalizeDAG is ifdef'd out.

llvm-svn: 44300

llvm-svn: 44299

llvm-svn: 44296

llvm-svn: 44295

Fix APInt::countTrailingZeros to return BitWidth if the input is zero instead of returning some random large number.

llvm-svn: 44294

llvm-svn: 44293

llvm-svn: 44292

OnlyReadsMemoryFns tables are dead!  We
get more, and more accurate, information
from gcc via the readnone and readonly
function attributes.

llvm-svn: 44288

from the old ADCE implementation (there it was
correct because the transform was being done
for read-only functions).

llvm-svn: 44287

even though the bitcast operand did not have integer type.  This fixes
PR1814.

llvm-svn: 44286

llvm-svn: 44284

llvm-svn: 44281

llvm-svn: 44280

Based on a patch by Török Edwin.

llvm-svn: 44279

exceptions, so don't turn invokes of them into
calls.

llvm-svn: 44278

and the 'pure' parameter attribute to 'readonly'.
Names suggested by DannyB.

llvm-svn: 44273

bits. Patch from Wojciech Matyjewicz.

llvm-svn: 44268

llvm-svn: 44267

node A gets back into the DAG again because it was hiding in
one of the node maps: make sure that node replacement happens
in those maps too.

llvm-svn: 44263

llvm-svn: 44262

llvm-svn: 44261

I added the lexing files to the VStudio projects and removed the .l files from the 
VStudio projects.  There was a problem with use of strtoll in TGLexer.cpp and Chris
suggested switching to strtol, so that's included here.

Additionally, this checkin adds minimal x64 builds to the VStudio builds.  Build issues
related to x64 in the windows specific files for DynamicLibrary.inc and Singals.inc
are worked around, but not ultimately solved.  Binaries used to be stored in

...\win32\{Debug|Release}

but are now kept in

...\win32\bin\{win32|x64}\{Debug|Release}

intermediate files will continue to be stored in the individual project directories under 
win32.  

Some names will likely change in the future to reflect that the vstudio projects
are no longer 32-bit only, but I wanted to get things up and running today so kept away
from bigger restructuring.

llvm-svn: 44260

for Darwin PPC, but it's not fully working yet.

llvm-svn: 44258

any sense it is important that ParamAttr::None gets
treated the same as not supplying an attribute at
all.  Rather than stripping ParamAttr::None out of
the list of attributes, assert if ParamAttr::None
is seen.  Fix up the bitcode reader which liked to
insert ParamAttr::None all over the place.  Patch
based on one by Török Edwin.

llvm-svn: 44250

"setcc" -> "icmp op" in comments. No functionality change.

llvm-svn: 44249

llvm-svn: 44248

Fix a couple of problems:
1. Don't assume the VT-1 is a VT that is half the size.
2. Treat vectors of FP in the vector path, not the FP path.

This has a couple of remaining problems before it will work with
the code in PR1811: the code below this change assumes that it can
use extload/shift/or to construct the result, which isn't right for
vectors.

This also doesn't handle vectors of 1 or vectors that aren't pow-2.

llvm-svn: 44243

llvm-svn: 44242

llvm-svn: 44240

llvm-svn: 44239

llvm-svn: 44234

llvm-svn: 44233

a valid but empty buffer if stdin is empty.

llvm-svn: 44219

llvm-svn: 44218

	call x86_fastcallcc void @func( i32* %X, i64 0 )
not:
	callx86_fastcallcc  void @func( i32* %X, i64 0 )

This fixes Codegen/X86/fast-cc-merge-stack-adj.ll

llvm-svn: 44217

llvm-svn: 44215