r136339, r136341, r136369, r136387, r136392, r136396, r136429, r136430, r136444,
r136445, r136446, r136253 pending review.

llvm-svn: 136556

llvm-svn: 136552

The ARM target depends on CPSR liveness being tracked after register
allocation.

llvm-svn: 136548

globally scoped constructs. Also, round-trip these dependencies through
the LLVMConfig.cmake.in file thata is used by CMake-based clients of
"installed" (or built) LLVM trees.

llvm-svn: 136543

This includes registers like EFLAGS and ST0-ST7. We don't check for
liveness issues in the verifier and scavenger because registers will
never be allocated from these classes.

While in SSA form, we do care about the liveness of unallocatable
unreserved registers. Liveness of EFLAGS and ST0 neds to be correct for
MachineDCE and MachineSinking.

llvm-svn: 136541

llvm-svn: 136535

llvm-svn: 136534

This flag is true from isel to register allocation when the machine
function is required to be in SSA form.  The TwoAddressInstructionPass
and PHIElimination passes clear the flag.

The SSA flag wil be used by the machine code verifier to check for SSA
form, and eventually an assertion can enforce it in +Asserts builds.
This will catch the common target error of creating machine code with
multiple defs of a virtual register.

llvm-svn: 136532

Remove const qualifiers from Init references, per Chris' request.

llvm-svn: 136531

llvm-svn: 136529

This helps generate better code in functions with high register
pressure.

llvm-svn: 136528

Fixes rdar://9866494

llvm-svn: 136523

llvm-svn: 136511

llvm-svn: 136510

Fix the instruction encoding for operands. Refactor mode to use explicit
instruction definitions per FIXME to be more consistent with loads/stores.
Fix disassembler accordingly. Add tests.

llvm-svn: 136509

for targets that don't have an MC-ized disassembler. I'm suspicious that
this shouldn't actually be happening, but hoping to fix the CMake build
on macs first, and investigate why second.

llvm-svn: 136508

llvm-svn: 136506

llvm-svn: 136505

llvm-svn: 136503

llvm-svn: 136502

Make sure DagInits are unique and created only once.

llvm-svn: 136501

Make sure FieldInits are unique and created only once.

llvm-svn: 136500

Make sure VarListElementInits are unique and created only once.

llvm-svn: 136499

Make sure VarBitInits are unique and created only once.

llvm-svn: 136498

Make sure VarInits are unique and created only once.

llvm-svn: 136497

Make sure TernOpInits are unique and created only once.  This will be
important for AVX/SIMD as many operators will be used to generate
patterns and other relevant data.

llvm-svn: 136496

Make sure BinOpInits are unique and created only once.  This will be
important for AVX/SIMD as many operators will be used to generate
patterns and other relevant data.

llvm-svn: 136495

Make sure UnOpInits are unique and created only once.  This will be
important for AVX/SIMD as many operators will be used to generate
patterns and other relevant data.

llvm-svn: 136494

Ensure ListInits are unique and only created once.  This will be
important for AVX as lists will be used extensively to pass generic
patterns, prefix information and other things to lower-level
pattern-generation classes.

llvm-svn: 136493

Use a StringMap to ensure CodeInits are unique and created only
once.

llvm-svn: 136492

Use a StringMap to ensure the StringInits are unique.  This is
especially important for AVX where we will have many smallish
strings representing instruction prefixes, suffixes and the like.

llvm-svn: 136491

Use a DenseMap to make sure only one IntInit of any value exists.

llvm-svn: 136490

Make BitsInit a FoldingSetNode so we can unique it.

llvm-svn: 136489

Keep only two copies of BitInit: one for true and one for false.

llvm-svn: 136488

Keep only one UnsetInit around.

llvm-svn: 136487

Replace uses of new *Init with *Init::get.  This hides the allocation
implementation so that we can unique Inits in various ways.

llvm-svn: 136486

Make references to Inits const everywhere.  This is the final step
before making them unique.

llvm-svn: 136485

Remove all non-const iterators from Init classes.  This is another
step toward constifying Inits and ultimately turning them into
FoldingSetNodes.

llvm-svn: 136484

Get rid of all Init members that modify internal state.  This is in
preparation for making references to Inits const.

llvm-svn: 136483

Add a getValues ListInit method to return the sequence of values in
the list.

llvm-svn: 136482