splitting all the patterns under scope nodes into equality sets
based on their first node.  The second step is to rewrite the
graph info a form that exposes the sharing.  Before I do this, 
I want to redesign the Scope node.

llvm-svn: 97130

llvm-svn: 97125

llvm-svn: 97123

llvm-svn: 97097

llvm-svn: 97096

llvm-svn: 97094

reflect what it does.  Switch the sense of the Next and the Check
arms to be more logical.  No functionality change.

llvm-svn: 97093

llvm-svn: 97081

x86 table by 1200 bytes.

llvm-svn: 97053

movechild/record -> recordchild/movechild and 
movechild/moveparent -> noop xforms.  This slightly shrinks the tables
(x86 to 117454) and enables adding future improvements.

llvm-svn: 97051

llvm-svn: 97047

llvm-svn: 97034

the old one around for comparative purposes: have the
ENABLE_NEW_ISEL #define (which is not enabled on mainline) stop
emitting the old isel at all, yay for build time win.

llvm-svn: 97033

the new isel: fold movechild+record+moveparent into a
single recordchild N node.  This shrinks the X86 table
from 125443 to 117502 bytes.

llvm-svn: 97031

Also add an easy macro at the top of DAGISelEmitter.cpp to enable
it.  Lets see if I can avoid accidentally turning it on :)

llvm-svn: 97029

internal nodes with flag results.  Record these with a new 
OPC_MarkFlagResults opcode and use this to update the interior
nodes' flag results properly.  This fixes CodeGen/X86/i256-add.ll
with the new isel.

llvm-svn: 97021

disassembler never recognizes InitReg instructions.

llvm-svn: 97017

llvm-svn: 96923

Needed to correctly handle things like 'llvmc -framework Foo foo.o -framework
Bar bar.o' - before this commit all '-framework' options would've been grouped
together in the beginning.

Due to our dependence on CommandLine this turned out to be a giant hack; we will
migrate away from CommandLine eventually.

llvm-svn: 96922

Does not work, but the infrastructure changes are in place.

llvm-svn: 96920

For now, just enough support to make -filelist work.

llvm-svn: 96918

llvm-svn: 96916

input/output patterns have the same type.  It turns out that 
this triggers all the time because we don't infer types 
between these boundaries.  Until we do, don't turn this on.

llvm-svn: 96905

of a pattern and where the uses have different types.

llvm-svn: 96904

this is tidier and can find bugs.

llvm-svn: 96900

but not in the input.  Previously, this would trigger an abort
late in the isel logic.

llvm-svn: 96898

llvm-svn: 96896

llvm-svn: 96891

llvm-svn: 96889

llvm-svn: 96845

VBR encoding for the insanity being perpetrated by the spu backend. 

llvm-svn: 96843

ridiculously ginormous patterns and need more than one byte
of displacement for encodings.  This fixes CellSPU/fdiv.ll.
SPU is still doing something else ridiculous though.

llvm-svn: 96833

well as the operands produced when the pattern is matched.  This
allows CheckSame to work correctly when matching replicated 
names involving ComplexPatterns.  This fixes a bunch of MSP430 
failures, we're down to 13 failures, two of which are
due to a sched bug.

llvm-svn: 96824

has one of the list of acceptable opcodes for a complex 
pattern.  This fixes 4 regtest failures.

llvm-svn: 96814

sure to only run the complex pattern on nodes where the target opts in.
This patch only handles targets with one opcode specified so far, but
fixes 16 failures, only 34 left.

llvm-svn: 96813

result nodes correctly.  Note that this includes a horrible hack
in DAGISelHeader which cannot be fixed reasonably without 
eliminating (parallel) from input patterns.  That, in turn,
can't be done until we support writing multiple result patterns
for the X86and_flag and related multiple-result nodes.

llvm-svn: 96767

DAGISelEmitter does.  This fixes 11 arm failures (8 
left).

llvm-svn: 96757

least cost matches.  This gets us from 195 -> 208 passes on the ppc codegen tests.

llvm-svn: 96747

llvm-svn: 96730

With this, the matcher actually works reasonably well, but
crashes on larger examples in the scheduler.

llvm-svn: 96727