llvm-svn: 62073

llvm-svn: 62036

llvm-svn: 62023

llvm-svn: 62022

llvm-svn: 62015

llvm-svn: 62005

llvm-svn: 61999

llvm-svn: 61991

Convert DwarfWriter into a pass.
Now Users request DwarfWriter through getAnalysisUsage() instead of creating an instance of DwarfWriter object directly.

llvm-svn: 61955

llvm-svn: 61950

llvm-svn: 61928

* Removed trailing whitespace

llvm-svn: 61927

* Removed trailing whitespace

llvm-svn: 61926

Again, shamelessly copied from MMI.

llvm-svn: 61912

This is a shameless copy of similar APIs from MachineModuleInfo. The copy from MMI will be deleted in near future.

llvm-svn: 61908

llvm-svn: 61891

The coalescer does not coalesce a virtual register to a physical register if any of the physical register's sub-register live intervals overlaps with the virtual register. This is overly conservative. It prevents a extract_subreg from being coalesced away:

v1024 = EDI  // not killed
      =
      = EDI

One possible solution is for the coalescer to examine the sub-register live intervals in the same manner as the physical register. Another possibility is to examine defs and uses (when needed) of sub-registers. Both solutions are too expensive. For now, look for "short virtual intervals" and scan instructions to look for conflict instead.

This is a small win on x86-64. e.g. It shaves 403.gcc by ~80 instructions.

llvm-svn: 61847

aggregate types. Don't increment the current index after reaching
the end of a struct, as it will already be pointing at
one-past-the end. This fixes PR3288.

llvm-svn: 61828

llvm-svn: 61822

llvm-svn: 61819

two address instructions.  We need to keep track of things we've processed AS USES
independetly of whether we've processed them as defs.

This fixes all known miscompilations when reconstruction is turned on.

llvm-svn: 61802

argument. This doesn't affect current functionality.

llvm-svn: 61779

AddPseudoTwoAddrDeps. This lets the scheduling infrastructure
avoid recalculating node heights. In very large testcases this
was a major bottleneck. Thanks to Roman Levenstein for finding
this!

As a side effect, fold-pcmpeqd-0.ll is now scheduled better
and it no longer requires spilling on x86-32.

llvm-svn: 61778

Construct subprogram DIEs using DebugInfo.

llvm-svn: 61772

Construct global variable DIEs using DebugInfo.

llvm-svn: 61771

Construct compile unit dies using DebugInfo.

llvm-svn: 61768

llvm-svn: 61765

with latency 0, since it doesn't affect the depth or height.

llvm-svn: 61762

Add methods to add source location info in a DIE.

llvm-svn: 61761

llvm-svn: 61757

llvm-svn: 61741

own OpActionsCapacity magic number; it can just use ISD::BUILTIN_OP_END,
as long as it takes care to round up when needed.

llvm-svn: 61733

llvm-svn: 61731

Construct stuct field DIEs.

llvm-svn: 61729

llvm-svn: 61726

llvm-svn: 61724

problem, rather than fixing it.  The problem has now been fixed the right way.

llvm-svn: 61723

llvm-svn: 61715

llvm-svn: 61714

llvm-svn: 61711