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297 Commits

Author SHA1 Message Date
Dan Gohman bb919dfb6b Implement a bunch more TargetSelectionDAGInfo infrastructure. 
Move EmitTargetCodeForMemcpy, EmitTargetCodeForMemset, and
EmitTargetCodeForMemmove out of TargetLowering and into
SelectionDAGInfo to exercise this.

llvm-svn: 103481
 2010-05-11 17:31:57 +00:00
Dan Gohman 779c69bbc5 Add a DebugLoc argument to TargetInstrInfo::copyRegToReg, so that it 
doesn't have to guess.

llvm-svn: 103194
 2010-05-06 20:33:48 +00:00
Evan Cheng efb126a665 Add argument TargetRegisterInfo to loadRegFromStackSlot and storeRegToStackSlot. 
llvm-svn: 103193
 2010-05-06 19:06:44 +00:00
Dan Gohman 25c1653700 Get rid of the EdgeMapping map. Instead, just check for BasicBlock 
changes before doing phi lowering for switches.

llvm-svn: 102809
 2010-05-01 00:01:06 +00:00
Chris Lattner a3facc5cb5 further simplify EmitAlignment by eliminating the 
ForcedAlignBits argument, tweaking the single client of it.

llvm-svn: 102484
 2010-04-28 01:08:40 +00:00
Evan Cheng 4158a0ff6b Implement -disable-non-leaf-fp-elim which disable frame pointer elimination 
optimization for non-leaf functions. This will be hooked up to gcc's
-momit-leaf-frame-pointer option. rdar://7886181

llvm-svn: 101984
 2010-04-21 03:18:23 +00:00
Dan Gohman 21cea8ac2e Use const qualifiers with TargetLowering. This eliminates several 
const_casts, and it reinforces the design of the Target classes being
immutable.

SelectionDAGISel::IsLegalToFold is now a static member function, because
PIC16 uses it in an unconventional way. There is more room for API
cleanup here.

And PIC16's AsmPrinter no longer uses TargetLowering.

llvm-svn: 101635
 2010-04-17 15:26:15 +00:00
Dan Gohman 9becdddc49 Add skeleton target-specific SelectionDAGInfo files. 
llvm-svn: 101564
 2010-04-16 23:04:22 +00:00
Dan Gohman bcaf681cde Add const qualifiers to CodeGen's use of LLVM IR constructs. 
llvm-svn: 101334
 2010-04-15 01:51:59 +00:00
Chris Lattner 5418dd5fda move elf section uniquing to MCContext. Along the way 
merge XCore's section into MCSectionELF

llvm-svn: 100812
 2010-04-08 21:26:26 +00:00
Benjamin Kramer a6769269f3 Use twines to simplify calls to report_fatal_error. For code size and readability. 
llvm-svn: 100756
 2010-04-08 10:44:28 +00:00
Chris Lattner 2104b8d36e rename llvm::llvm_report_error -> llvm::report_fatal_error 
llvm-svn: 100709
 2010-04-07 22:58:41 +00:00
Chris Lattner 82ff9af068 remove the MMI pointer from MachineFrameInfo. 
llvm-svn: 100415
 2010-04-05 05:57:52 +00:00
Chris Lattner 50b1bf63a7 simplify code. 
llvm-svn: 100412
 2010-04-05 05:48:36 +00:00
Chris Lattner f0ef4e4019 implement EmitFunctionEntryLabel to emit the .cc_top directive, 
allowing xcore to use the normal runOnMachineFunction 
implementation.

llvm-svn: 100402
 2010-04-05 04:44:02 +00:00
Jakob Stoklund Olesen b93331f3be Replace TSFlagsFields and TSFlagsShifts with a simpler TSFlags field. 
When a target instruction wants to set target-specific flags, it should simply
set bits in the TSFlags bit vector defined in the Instruction TableGen class.

This works well because TableGen resolves member references late:

class I : Instruction {
  AddrMode AM = AddrModeNone;
  let TSFlags{3-0} = AM.Value;
}

let AM = AddrMode4 in
def ADD : I;

TSFlags gets the expected bits from AddrMode4 in this example.

llvm-svn: 100384
 2010-04-05 03:10:20 +00:00
Chris Lattner 626cb66fdb just have all targets create the DwarfWriter. 
llvm-svn: 100377
 2010-04-05 00:42:55 +00:00
Chris Lattner 8b30492da3 simplify various getAnalysisUsage implementations. 
llvm-svn: 100376
 2010-04-05 00:38:44 +00:00
Chris Lattner 324c86600d eliminate the magic AbsoluteDebugSectionOffsets MAI hook, 
which is really a property of the section being referenced.
Add a predicate to MCSection to replace it.

Yay for reduction in magic.

llvm-svn: 100367
 2010-04-04 23:22:29 +00:00
Chris Lattner d20699bc87 Momentous day: remove the "O" member from AsmPrinter. Now all 
"asm printering" happens through MCStreamer.  This also 
Streamerizes PIC16 debug info, which escaped my attention.

This removes a leak from LLVMTargetMachine of the 'legacy'
output stream.

llvm-svn: 100327
 2010-04-04 08:18:47 +00:00
Chris Lattner 3cb9086c26 mc'ize the remaining uses of O. 
llvm-svn: 100322
 2010-04-04 07:23:00 +00:00
Chris Lattner 5e5961864f mcize a bunch more stuff, using EmitRawText for things we 
don't have mcstreamer support for yet.

llvm-svn: 100319
 2010-04-04 07:05:53 +00:00
Chris Lattner 3d86cd6710 convert the non-MCInstPrinter'ized EmitInstruction 
implementations to use EmitRawText instead of writing
directly to "O".

llvm-svn: 100318
 2010-04-04 06:12:20 +00:00
Chris Lattner 3bb09768cb fix PrintAsmOperand and PrintAsmMemoryOperand to pass down 
raw_ostream to print to.

llvm-svn: 100313
 2010-04-04 05:29:35 +00:00
Chris Lattner 76c564b1bb change a ton of code to not implicitly use the "O" raw_ostream 
member of AsmPrinter.  Instead, pass it in explicitly.

llvm-svn: 100306
 2010-04-04 04:47:45 +00:00
Mon P Wang c576ee9040 Reapply address space patch after fixing an issue in MemCopyOptimizer. 
Added support for address spaces and added a isVolatile field to memcpy, memmove, and memset,
e.g., llvm.memcpy.i32(i8*, i8*, i32, i32) -> llvm.memcpy.p0i8.p0i8.i32(i8*, i8*, i32, i32, i1)

llvm-svn: 100304
 2010-04-04 03:10:48 +00:00
Chris Lattner 6f306d7d30 use DebugLoc default ctor instead of DebugLoc::getUnknownLoc() 
llvm-svn: 100214
 2010-04-02 20:16:16 +00:00
Mon P Wang 999c1b927b Revert r100191 since it breaks objc in clang 
llvm-svn: 100199
 2010-04-02 18:43:02 +00:00
Mon P Wang a972ab8564 Reapply address space patch after fixing an issue in MemCopyOptimizer. 
Added support for address spaces and added a isVolatile field to memcpy, memmove, and memset,
e.g., llvm.memcpy.i32(i8*, i8*, i32, i32) -> llvm.memcpy.p0i8.p0i8.i32(i8*, i8*, i32, i32, i1)

llvm-svn: 100191
 2010-04-02 18:04:15 +00:00
Dale Johannesen 4244d12769 Teach AnalyzeBranch, RemoveBranch and the branch 
folder to be tolerant of debug info following the
branch(es) at the end of a block.

llvm-svn: 100168
 2010-04-02 01:38:09 +00:00
Bob Wilson 6f7fd28824 Revert Mon Ping's change 99928, since it broke all the llvm-gcc buildbots. 
llvm-svn: 99948
 2010-03-30 22:27:04 +00:00
Mon P Wang 7460571381 Added support for address spaces and added a isVolatile field to memcpy, memmove, and memset, 
e.g., llvm.memcpy.i32(i8*, i8*, i32, i32) -> llvm.memcpy.p0i8.p0i8.i32(i8*, i8*, i32, i32, i1)
A update of langref will occur in a subsequent checkin.

llvm-svn: 99928
 2010-03-30 20:55:56 +00:00
Chris Lattner b7c48433df fix a type contradition: XCoreISD::RETSP has one argument, not zero. 
llvm-svn: 99760
 2010-03-28 08:47:39 +00:00
Chris Lattner 0433699ef0 set SDNPVariadic on nodes throughout the rest of the targets that 
need them.

llvm-svn: 98937
 2010-03-19 05:33:51 +00:00
Chris Lattner 6e52e9db31 get MMI out of the label uniquing business, just go to MCContext 
to get unique assembler temporary labels.

llvm-svn: 98489
 2010-03-14 08:36:50 +00:00
Chris Lattner d5e8d9f29a Now that DBG_LABEL is updated, we can finally make MachineMove 
contain an MCSymbol instead of a label index.

llvm-svn: 98482
 2010-03-14 08:12:40 +00:00
Chris Lattner c26f44fb07 change the DBG_LABEL MachineInstr to always be created 
with an MCSymbol instead of an immediate.

llvm-svn: 98481
 2010-03-14 07:56:48 +00:00
Chris Lattner 29bdac4928 eliminate the now-unneeded context argument of MBB::getSymbol() 
llvm-svn: 98451
 2010-03-13 21:04:28 +00:00
Chris Lattner e468f88b26 rearrange MCContext ownership. Before LLVMTargetMachine created it 
and passing off ownership to AsmPrinter.  Now MachineModuleInfo
creates it and owns it by value.  This allows us to use MCSymbols
more consistently throughout the rest of the code generator, and
simplifies a bit of code.  This also allows MachineFunction to 
keep an MCContext reference handy, and cleans up the TargetRegistry
interfaces for AsmPrinters.

llvm-svn: 98450
 2010-03-13 20:55:24 +00:00
Jeffrey Yasskin 9eeda13a52 Fix LLVM build when the user specifies CPPFLAGS on the make command line. 
llvm-svn: 98394
 2010-03-12 21:42:14 +00:00
Chris Lattner 0b822ab447 inline GetGlobalValueSymbol into the rest its callers and 
remove it.

llvm-svn: 98390
 2010-03-12 21:19:23 +00:00
Richard Osborne 7aa06ac2b9 Remove dead code. (S|U)MUL_LO is now lowered to LMUL or MACC(S|U) 
llvm-svn: 98269
 2010-03-11 18:38:59 +00:00
Richard Osborne 4780109254 Add dag combine to simplify lmul(x, 0, a, b) 
llvm-svn: 98258
 2010-03-11 16:26:35 +00:00
Richard Osborne 29ffbf123f Switch XCore over to using inline jump table entries. 
llvm-svn: 98256
 2010-03-11 14:58:56 +00:00
Richard Osborne 66839831a7 The backend now makes a reasonable job of targeting lmul / macc 
llvm-svn: 98169
 2010-03-10 18:14:47 +00:00
Richard Osborne 54a2c32670 Handle MVT::i64 type in DAG combine for ISD::ADD. Fold 64 bit 
expression add(add(mul(x,y),a),b) -> lmul(x,y,a,b) if all
operands are zero extended.

llvm-svn: 98168
 2010-03-10 18:12:27 +00:00
Richard Osborne c99b9b2193 Fix checking of intermediates having one use in isADDADDMUL 
llvm-svn: 98164
 2010-03-10 17:16:29 +00:00
Richard Osborne 5a457de4b2 Extract recognition of patterns such as add(add(mul(x,y),a),b) 
into a seperate function.

llvm-svn: 98162
 2010-03-10 17:10:35 +00:00
Richard Osborne 11ec7ee125 Fix thinko. 
llvm-svn: 98158
 2010-03-10 16:27:11 +00:00
Richard Osborne 1a396d53ed Fold add(add(mul(x,y),a),b) -> lmul(x,y,a,b) if the intermediate 
results are unused elsewhere.

llvm-svn: 98157
 2010-03-10 16:19:31 +00:00