llvm-svn: 87069

Switch to smallvector. Also fix issue with using unsigend for MaxSplit.

llvm-svn: 87068

PPC is such a target; make it work.

llvm-svn: 87060

llvm-svn: 87059

llvm-svn: 87058

llvm-svn: 87056

llvm-svn: 87054

llvm-svn: 87049

Fix a bootstrap failure.

Provide special isLoadFromStackSlotPostFE and isStoreToStackSlotPostFE
interfaces to explicitly request checking for post-frame ptr elimination
operands.  This uses a heuristic so it isn't reliable for correctness.

llvm-svn: 87047

llvm-svn: 87042

llvm-svn: 87040

llvm-svn: 87036

llvm-svn: 87035

Do some cleanups suggested by Chris.

llvm-svn: 87034

strings.

llvm-svn: 87031

Set the ReloadReuse AsmPrinter flag where appropriate.

llvm-svn: 87030

llvm-svn: 87029

Fix a build error by providing a missing enum value.

llvm-svn: 87028

Make the MachineFunction argument of getFrameRegister const.

This also fixes a build error.

llvm-svn: 87027

Add hasLoadFromStackSlot and hasStoreToStackSlot to return whether a
machine instruction loads or stores from/to a stack slot.  Unlike
isLoadFromStackSlot and isStoreFromStackSlot, the instruction may be
something other than a pure load/store (e.g. it may be an arithmetic
operation with a memory operand).  This helps AsmPrinter determine when
to print a spill/reload comment.

This is only a hint since we may not be able to figure this out in all
cases.  As such, it should not be relied upon for correctness.

Implement for X86.  Return false by default for other architectures.

llvm-svn: 87026

llvm-svn: 87025

llvm-svn: 87024

and don't assume that the call doesn't throw. It would be nice if there were a
way to determine which is the callee and which is a parameter. In practice, the
architecture we care about normally only have one operand for a call instruction
(x86 and arm).

llvm-svn: 87023

Add a bool flag to StackObjects telling whether they reference spill
slots.  The AsmPrinter will use this information to determine whether to
print a spill/reload comment.

Remove default argument values.  It's too easy to pass a wrong argument
value when multiple arguments have default values.  Make everything
explicit to trap bugs early.

Update all targets to adhere to the new interfaces..

llvm-svn: 87022

StringsEqualNoCase (from StringExtras.h) to it.

llvm-svn: 87020

Make FixedStackPseudoSourceValue a first-class PseudoSourceValue by
making it visible to clients and adding LLVM-style cast capability.
This will be used by AsmPrinter to determine when to emit spill comments
for an instruction.

llvm-svn: 87019

Add AsmPrinter comment flags to machine instructions so that AsmPrinter
can emit extra information in comments.

llvm-svn: 87018

Add comment flags so AsmPrinter can output additional information when
emitting comments.  These flags carry semantic information not otherwise
easily derivable from the IR text.

llvm-svn: 87016

llvm-svn: 87015

"Attach debug info with llvm instructions" mode was enabled a month ago. Now make it permanent and remove old way of inserting intrinsics to encode debug info for line number and scopes.

llvm-svn: 87014

they really are not duplicable.

llvm-svn: 87009

llvm-svn: 87002

to directly follow the jump table. Move the layout changes to prior to any
constant island handling.

llvm-svn: 86999

Clean up testcase a bit. Simplify case blocks and adjust switch instruction to not take an undefined value as input.

llvm-svn: 86997

llvm-svn: 86987

llvm-svn: 86986

llvm-svn: 86984

llvm-svn: 86980

running IPSCCP early, and we run functionattrs interlaced with the inliner,
we often (particularly for small or noop functions) completely propagate
all of the information about a call to its call site in IPSSCP (making a call
dead) and functionattrs is smart enough to realize that the function is
readonly (because it is interlaced with inliner).

To improve compile time and make the inliner threshold more accurate, realize
that we don't have to inline dead readonly function calls.  Instead, just 
delete the call.  This happens all the time for C++ codes, here are some
counters from opt/llvm-ld counting the number of times calls were deleted vs
inlined on various apps:

Tramp3d opt:
  5033 inline                - Number of call sites deleted, not inlined
 24596 inline                - Number of functions inlined
llvm-ld:
  667 inline           - Number of functions deleted because all callers found
  699 inline           - Number of functions inlined

483.xalancbmk opt:
  8096 inline                - Number of call sites deleted, not inlined
 62528 inline                - Number of functions inlined
llvm-ld:
   217 inline           - Number of allocas merged together
  2158 inline           - Number of functions inlined

471.omnetpp:
  331 inline                - Number of call sites deleted, not inlined
 8981 inline                - Number of functions inlined
llvm-ld:
  171 inline           - Number of functions deleted because all callers found
  629 inline           - Number of functions inlined


Deleting a call is much faster than inlining it, and is insensitive to the
size of the callee. :)

llvm-svn: 86975

llvm-svn: 86972