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

drops a dependency on flex and lets us make future progress more 
easily.  Yay for 2 fewer .cvs files to make silly conflicts with.

llvm-svn: 44213

llvm-svn: 44204

fix an occasional nonrepeatable bootstrap failure we've
been seeing on Darwin.

llvm-svn: 44202

PR 1804.

llvm-svn: 44201

When a live interval is being spilled, rather than creating short, non-spillable
intervals for every def / use, split the interval at BB boundaries. That is, for
every BB where the live interval is defined or used, create a new interval that
covers all the defs and uses in the BB.

This is designed to eliminate one common problem: multiple reloads of the same
value in a single basic block. Note, it does *not* decrease the number of spills
since no copies are inserted so the split intervals are *connected* through
spill and reloads (or rematerialization). The newly created intervals can be
spilled again, in that case, since it does not span multiple basic blocks, it's
spilled in the usual manner. However, it can reuse the same stack slot as the
previously split interval.

This is currently controlled by -split-intervals-at-bb.

llvm-svn: 44198

llvm-svn: 44193

llvm-svn: 44188

llvm-svn: 44183

Codegen bits and llvm-gcc support will follow.

llvm-svn: 44182

llvm-svn: 44181

llvm-svn: 44177

llvm-svn: 44167

llvm-svn: 44166

is disabled in the sense that it will refuse to create one from a UDiv
instruction, until the code is better tested.

llvm-svn: 44163

Thanks to him for his detailed analysis of the problem.

llvm-svn: 44162

llvm-svn: 44158

llvm-svn: 44154

llvm-svn: 44153

llvm-svn: 44139

llvm-svn: 44128

the deserializer.

Fixed assertion when "stream jumping" in the deserializer to properly function
when we have reached the end of the stream.

llvm-svn: 44124

llvm-svn: 44116

llvm-svn: 44110

llvm-svn: 44109

to all targets uses GOT-relative offsets for PIC (Alpha?)

llvm-svn: 44108

in favour of teaching CCAssignToStack that size 0 and/or align
0 means to use the ABI values.  This seems a neater solution.
It is safe since no legal value type has size 0.

llvm-svn: 44107

BatchReadOwnedPtrs.

llvm-svn: 44105