The pre-regalloc pass caused some regressions in both compile time and
performance of the generated code, and it did not improve performance, except
for indirect branches.  I also moved the check for single-block loops to speed
up the common case when running the taildup pass before reg allocation.

llvm-svn: 93505

Improve llvm.dbg.declare intrinsic by referring directly to the storage in its first argument, via function-local metadata (instead of via a bitcast).
This patch also cleans up code that expects there to be a bitcast in the first argument and testcases that call llvm.dbg.declare.

llvm-svn: 93504

llvm-svn: 93501

print it as a comment on X86.

llvm-svn: 93499

Also, DEBUG_VALUE has side effects.

llvm-svn: 93498

"icmp lhs, rhs" into "cmp rhs, lhs". This should fix PR5979.

llvm-svn: 93496

llvm-svn: 93494

llvm-svn: 93492

llvm-svn: 93487

llvm-svn: 93486

llvm-svn: 93484

We need to find a better way to emit this info.

llvm-svn: 93481

llvm-svn: 93480

EmitAtomicCmpSwap() custome inserter needs to delete the MI passed in. EmitAtomicBinary() already does this.

llvm-svn: 93479

JITTest.FunctionIsRecompiledAndRelinked.)

llvm-svn: 93475

commit.

llvm-svn: 93473

the disassembler can properly decode Load/Store register/immediate instructions.

llvm-svn: 93471

the default implementation returns "unknown".

llvm-svn: 93470

the new ParseInstruction method just parses and returns a list of
target operands.  A new MatchInstruction interface is used to
turn the operand list into an MCInst.

This requires new/deleting all the operands, but it also gives 
targets the ability to use polymorphic operands if they want to. 

llvm-svn: 93469

llvm-svn: 93468

llvm-svn: 93467

llvm-svn: 93463

llvm-svn: 93462

llvm-svn: 93459

Pass in SMLoc of instr opcode into ParseInstruction.
Make AsmToken be a class, not a struct.

llvm-svn: 93457

catch info can get misplaced when a selector ends up more than one block
removed from the parent invoke(s). This could happen when a landing pad is
shared by multiple invokes and is also a target of a normal edge from
elsewhere.

llvm-svn: 93456

llvm-svn: 93455

llvm-svn: 93454

llvm-svn: 93453

Patch by Diego Iastrubni!

llvm-svn: 93450

llvm-svn: 93449

and frequently optimized functions.

llvm-svn: 93448

llvm-svn: 93446

Avoid modifying ValueEnumerator's MD ValueList by choosing which function-local MD to write based on the function currently being written

llvm-svn: 93441

This is consistent with llvm-gcc's arm/constraints.md.

Certain instructions (e.g. CBZ, CBNZ) require a low register, even in Thumb2
mode.

llvm-svn: 93436

llvm-svn: 93423

llvm-svn: 93417

llvm-svn: 93410

llvm-svn: 93408

Now that LLParser, AsmWriter, BitcodeReader, and BitcodeWriter all correctly support function-local metadata, test it.

llvm-svn: 93406