helper method, use it to simplify some code.

llvm-svn: 93575

llvm-svn: 93571

llvm-svn: 93570

target-dependent memory address representation in it.
Restore X86 printing of DEBUG_VALUE; lowering is
done in X86RegisterInfo using the normal algorithm.

llvm-svn: 93565

handle physical registers R0-R7 when described as having a non-tGPR register
class.

llvm-svn: 93564

llvm-svn: 93563

llvm-svn: 93562

llvm-svn: 93560

users.

llvm-svn: 93558

llvm-svn: 93556

llvm-svn: 93554

llvm-svn: 93553

llvm-svn: 93552

Add micro-optimization which allows us to fold imm into cmp. This allows us to save 1 word (sometimes) and reduce register pressure.

llvm-svn: 93551

llvm-svn: 93550

This fixes the regression for -pre-regalloc-taildup in
MultiSource/Applications/lambda-0.1.3.

llvm-svn: 93541

llvm-svn: 93540

llvm-svn: 93539

Add some debug routines to SelectionDAG to dump full DAGs.
print/dumpWithDepth allows one to dump a DAG up to N levels deep.
dump/printWithFullDepth prints the whole DAG, subject to a depth limit
on 100 in the default case (to prevent infinite recursion).

Have CannotYetSelect to a dumpWithFullDepth so it is clearer exactly
what the non-matching DAG looks like.

llvm-svn: 93538

unneeded argument from ParseExpression.

llvm-svn: 93536

X86Operand's have range info.

llvm-svn: 93535

to return range information for subexpressions.  Use this to
provide range info for several new X86Operands.

llvm-svn: 93534

llvm-svn: 93532

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.
It also strips old llvm.dbg.declare intrinsics that did not pass metadata as the first argument.

llvm-svn: 93531

FrameIndexes should be lowered, but the same way as
everything else (target dependent) rather than in a
special hacked way.  The lowering needs to be done
for eventual purposes of Dwarf generation.

llvm-svn: 93530

X86Operand::Create* implementations to avoid
copy ctor use.

llvm-svn: 93528

Remove most of old Mach-O Writer support, it has been replaced by MCMachOStreamer

Further refactoring to completely remove MachOWriter and drive the object file
writer with the AsmPrinter MCInst/MCSection logic is forthcoming.

llvm-svn: 93527

llvm-svn: 93526

datastructure when parsing a mem operand.

llvm-svn: 93521

llvm-svn: 93515

integer type is used.

llvm-svn: 93509

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

print it as a comment on X86.

llvm-svn: 93499

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

llvm-svn: 93496

llvm-svn: 93494

llvm-svn: 93487

llvm-svn: 93484

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

llvm-svn: 93481

llvm-svn: 93480