llvm-svn: 53119

llvm-svn: 53110

- Remove calls to copyKillDeadInfo which is an N^2 function. Instead, propagate kill / dead markers as new instructions are constructed in foldMemoryOperand, convertToThressAddress, etc.
- Also remove LiveVariables::instructionChanged, etc. Replace all calls with cheaper calls which update VarInfo kill list.

llvm-svn: 53097

llvm-svn: 53067

- Add LiveVariables::replaceKillInstruction. This does a subset of instructionChanged. That is, it only update the VarInfo.kills if the new instruction is known to have the correct dead and kill markers.
- CommuteInstruction copies kill / dead markers over to new instruction. So use replaceKillInstruction instead.

llvm-svn: 53061

Make LiveVariables even more optional, by making it optional in the call to TargetInstrInfo::convertToThreeAddressInstruction
Also, if LV isn't around, then TwoAddr doesn't need to be updating flags, since they won't have been set in the first place.

llvm-svn: 53058

SelectionDAG::SelectNodeTo in the instruction selector. This
updates existing nodes in place instead of creating new ones.

Go back to selecting ISD::DBG_LABEL nodes into
TargetInstrInfo::DBG_LABEL nodes instead of leaving them
unselected, now that SelectNodeTo allows us to update them
in place.

llvm-svn: 53057

creating global constant strings and pointers
to global constant strings.

llvm-svn: 53051

llvm-svn: 53036

to be passed the list of value types, and use this
where appropriate.  Inappropriate places are where
the value type list is already known and may be
long, in which case the existing method is more
efficient.

llvm-svn: 53035

llvm-svn: 53033

have different alignment by creating a stack slot with the max
alignment of source and target type.

llvm-svn: 53031

llvm-svn: 53009

Solanki!

llvm-svn: 53008

llvm-svn: 53001

llvm-svn: 52998

conversions to std::string.

llvm-svn: 52995

debug information is being output, because it's leet!

llvm-svn: 52994

llvm-svn: 52992

llvm-svn: 52989

- Don't use GlobalVariable::LinkageTypes when unsigned works.

llvm-svn: 52987

llvm-svn: 52984

Add a version of AsmPrinter::EOL that takes a const char* so that we don't have to do as many implicit std::string constructions.
Unfortunately, this doesn't appear to translate to a real speedup in practice.

llvm-svn: 52981

Thanks for the feedback!

llvm-svn: 52978

llvm-svn: 52977

llvm-svn: 52976

llvm-svn: 52974

llvm-svn: 52972

llvm-svn: 52971

llvm-svn: 52967

and mark it const along with the associated changes to TargetRegisterInfo.

llvm-svn: 52966

  - Use a more accurate heuristic for the size of the hashtable.
  - Use bitwise and instead of modulo since the size is a power of two.
  - Use new[] instead of malloc().

llvm-svn: 52951

llvm-svn: 52950

version that is computed by tblgen at the time LLVM is compiled.

llvm-svn: 52945

the need for a flavor operand, and add a new SDNode subclass,
LabelSDNode, for use with them to eliminate the need for a label id
operand.

Change instruction selection to let these label nodes through
unmodified instead of creating copies of them. Teach the MachineInstr
emitter how to emit a MachineInstr directly from an ISD label node.

This avoids the need for allocating SDNodes for the label id and
flavor value, as well as SDNodes for each of the post-isel label,
label id, and label flavor.

llvm-svn: 52943

instead of std::uninitialized_copy, which uses memmove.

llvm-svn: 52928

llvm-svn: 52927

llvm-svn: 52925

purpose, and give it a custom SDNode subclass so that it doesn't
need to have line number, column number, filename string, and
directory string, all existing as individual SDNodes to be the
operands.

This was the only user of ISD::STRING, StringSDNode, etc., so
remove those and some associated code.

This makes stop-points considerably easier to read in
-view-legalize-dags output, and reduces overhead (creating new
nodes and copying std::strings into them) on code containing
debugging information.

llvm-svn: 52924

llvm-svn: 52923