Propagate changes from my local tree. This patch includes:
1. New parameter attribute called 'inreg'. It has meaning "place this
parameter in registers, if possible". This is some generalization of
g

Propagate changes from my local tree. This patch includes:
1. New parameter attribute called 'inreg'. It has meaning "place this
parameter in registers, if possible". This is some generalization of
gcc's regparm(n) attribute. It's currently used only in X86-32 backend.
2. Completely rewritten CC handling/lowering code inside X86 backend.
Merged stdcall + c CCs and fastcall + fast CC.
3. Dropped CSRET CC. We cannot add struct return variant for each
target-specific CC (e.g. stdcall + csretcc and so on).
4. Instead of CSRET CC introduced 'sret' parameter attribute. Setting in
on first attribute has meaning 'This is hidden pointer to structure
return. Handle it gently'.
5. Fixed small bug in llvm-extract + add new feature to
FunctionExtraction pass, which relinks all internal-linkaged callees
from deleted function to external linkage. This will allow further
linking everything together.

NOTEs: 1. Documentation will be updated soon.
2. llvm-upgrade should be improved to translate csret => sret.
Before this, there will be some unexpected test fails.
llvm-svn: 33597

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Change the MachineDebugInfo to MachineModuleInfo to better reflect usage
for debugging and exception handling.

llvm-svn: 33550

Make LABEL a builtin opcode.

llvm-svn: 33537

Typo.

llvm-svn: 32628

Rename ISD::MemOpAddrMode to ISD::MemIndexedMode

llvm-svn: 31595

Fix comments.

llvm-svn: 31414

Add isPredecessor to check whether a node is another's predecessor.

llvm-svn: 31406

Added a new SDNode type: BR_JT for jumptable branch.

llvm-svn: 31292

Editorial clean up.

llvm-svn: 31250

Switch over from SelectionNodeCSEMap to FoldingSet.

llvm-svn: 31240

Indexed load / store changes.

llvm-svn: 31208

Split PRE_INDEXED to PRE_INC / PRE_DEC and similarly for POST_INDEXED.

llvm-svn: 31015

Merge ISD::TRUNCSTORE to ISD::STORE. Switch to using StoreSDNode.

llvm-svn: 30945

Naming consistency.

llvm-svn: 30878

Jimptables working again on alpha.

As a bonus, use the GOT node instead of the AlphaISD::GOT for internal stuff.

llvm-svn: 30873

Comments; getChain(), getBasePtr(), etc. should return a SDOperand by value.

llvm-svn: 30850

Merging ISD::LOAD and ISD::LOADX. Added LoadSDNode to represent load nodes.
Chain and address ptr remains as operands. SrcValue, extending mode, extending
VT (or rather loaded VT before extension) ar

Merging ISD::LOAD and ISD::LOADX. Added LoadSDNode to represent load nodes.
Chain and address ptr remains as operands. SrcValue, extending mode, extending
VT (or rather loaded VT before extension) are now instance variables of
LoadSDNode.

Introduce load / store addressing modes to represent pre- and post-indexed
load and store. Also added an additional operand offset that is only used in
post-indexed mode (i.e. base ptr += offset after load/store).

Added alignment info (not yet used) and isVolatile fields.

llvm-svn: 30843

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Combine ISD::EXTLOAD, ISD::SEXTLOAD, ISD::ZEXTLOAD into ISD::LOADX. Add an
extra operand to LOADX to specify the exact value extension type.

llvm-svn: 30714

Add support for other relocation bases to jump tables, as well as custom asm directives

llvm-svn: 30593

The top bit is used to determine whether it's a MachineConstantPoolValue.

llvm-svn: 30324

Added support for machine specific constantpool values. These are useful for
representing expressions that can only be resolved at link time, etc.

llvm-svn: 30278

Implement new fpowi node

llvm-svn: 30223

Eliminate SelectNodeTo() and getTargetNode() variants which take more than
3 SDOperand operands. They are replaced by versions which take an array
of SDOperand and the number of operands.

llvm-svn:

Eliminate SelectNodeTo() and getTargetNode() variants which take more than
3 SDOperand operands. They are replaced by versions which take an array
of SDOperand and the number of operands.

llvm-svn: 29905

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Change the use_list to be a smallvector instead of a vector. This reduces
isel time from 6.79s to 5.53s (22%) on kc++ with a release build on ppc.
Go smallvector! :)

llvm-svn: 29731

Start using SDVTList more consistently

llvm-svn: 29711