llvm-svn: 107919

Reuse DIEInteger for 1. This is frequently used while emitting an attribute using dwarf::DW_FORM_flag form.

llvm-svn: 107903

the simplification of frame index register scavenging to not have to check
for available registers directly and instead just let scavengeRegister()
handle it.

llvm-svn: 107880

EXTRACT_SUBREG no longer appears as a machine instruction. Use COPY instead.

Add isCopy() checks in many places using isMoveInstr() and isExtractSubreg().
The isMoveInstr hook will be removed later.

llvm-svn: 107879

Fix X86InstrInfo::convertToThreeAddressWithLEA to generate COPY instead of
INSERT_SUBREG.

llvm-svn: 107878

llvm-svn: 107868

This target hook is intended to replace copyRegToReg entirely, but for now it
calls copyRegToReg.

Any remaining calls to copyRegToReg wil be replaced by COPY instructions.

llvm-svn: 107854

Debug info intrinsics win for now.

llvm-svn: 107850

(if there are any) and use the one which remains available for the longest
rather than just using the first one. This should help enable better re-use
of the loaded frame index values. rdar://7318760

llvm-svn: 107847

prefer to materialize as local constants. This fixes the clang
bootstrap abort.

llvm-svn: 107840

llvm-svn: 107839

Keep track of abstract subprogram DIEs. 

llvm-svn: 107822

llvm-svn: 107820

didn't create a new block, don't reset the insert position.

llvm-svn: 107813

llvm-svn: 107810

llvm-svn: 107807

a separate DCE pass over MachineInstrs.

llvm-svn: 107804

a bunch of stuff, to allow the target-independent calling convention
logic to be employed.

llvm-svn: 107800

position when emitting multiple blocks when executing a custom
inserter.

llvm-svn: 107797

llvm-svn: 107796

llvm-svn: 107795

around everywhere, and also give it an InsertPt member, to enable isel
to operate at an arbitrary position within a block, rather than just
appending to a block.

llvm-svn: 107791

instance, rather than pointers to all of FunctionLoweringInfo's
members.

This eliminates an NDEBUG ABI sensitivity.

llvm-svn: 107789

allow target-specific fast-isel code to make use of it directly.

llvm-svn: 107787

code can do calling-convention queries. This obviates OutputArgReg.

llvm-svn: 107786

llvm-svn: 107781

llvm-svn: 107780

llvm-svn: 107778

Buildbot breakage.

llvm-svn: 107744

than assuming a target will custom lower them. Targets which do so should
exlicitly mark them as having custom lowerings. PR7454.

llvm-svn: 107734

llvm-svn: 107732

INSERT_SUBREG will now only appear in SSA machine instructions.

Fix the handling of partial redefs in ProcessImplicitDefs. This is now relevant
since partial redef COPY instructions appear.

llvm-svn: 107726

SelectBasicBlock doesn't needs its BasicBlock argument.

llvm-svn: 107712

llvm-svn: 107710

llvm-svn: 107700

llvm-svn: 107698

It is OK for an alias live range to overlap if there is a copy to or from the
physical register. CoalescerPair can work out if the copy is coalescable
independently of the alias.

This means that we can join with the actual destination interval instead of
using the getOrigDstReg() hack. It is no longer necessary to merge clobber
ranges into subregisters.

llvm-svn: 107695

the block before calling the expansion hook. And don't
put EFLAGS in a mbb's live-in list twice.

llvm-svn: 107691

llvm-svn: 107684

llvm-svn: 107670