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Commit Graph

253 Commits

Author SHA1 Message Date
Richard Osborne
e018a3f184 The backend now makes a reasonable job of targeting lmul / macc
llvm-svn: 98169
2010-03-10 18:14:47 +00:00
Richard Osborne
41c5f84f1d 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
8e7cdbef01 Fix checking of intermediates having one use in isADDADDMUL
llvm-svn: 98164
2010-03-10 17:16:29 +00:00
Richard Osborne
a1f3ed1aeb 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
6120fdbd30 Fix thinko.
llvm-svn: 98158
2010-03-10 16:27:11 +00:00
Richard Osborne
d400202a43 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
Richard Osborne
c19c2bd177 Prefer LMUL to MACCU as LMUL has no tied operands.
llvm-svn: 98153
2010-03-10 13:27:10 +00:00
Richard Osborne
43210638f1 Custom lower (S|U)MUL_LOHI -> MACC(S|U)
llvm-svn: 98152
2010-03-10 13:20:07 +00:00
Richard Osborne
ed6df27ad0 Fix indentation
llvm-svn: 98151
2010-03-10 11:42:05 +00:00
Richard Osborne
c88a8e8d66 Lower add (mul a, b), c into MACCU / MACCS nodes which translate
directly to the maccu / maccs instructions. We handle this in
ExpandADDSUB since after type legalisation it is messy to
recognise these operations.

llvm-svn: 98150
2010-03-10 11:41:08 +00:00
Jim Grosbach
f328c5334f Change the Value argument to eliminateFrameIndex to a type-tagged value. This
is preparatory to having PEI's scavenged frame index value reuse logic
properly distinguish types of frame values (e.g., whether the value is
stack-pointer relative or frame-pointer relative).

No functionality change.

llvm-svn: 98086
2010-03-09 21:45:49 +00:00
Richard Osborne
4077517135 In cases where the carry / borrow unused converted ladd / lsub
to an add or a sub.

llvm-svn: 98059
2010-03-09 16:34:25 +00:00
Richard Osborne
e33e24e6cb Canonicalize ladd constant to RHS.
llvm-svn: 98058
2010-03-09 16:13:57 +00:00
Richard Osborne
173efed224 Add DAG combine for ladd / lsub.
llvm-svn: 98057
2010-03-09 16:07:47 +00:00
Chris Lattner
1707a88a2c Sink InstructionSelect() out of each target into SDISel, and rename it
DoInstructionSelection.  Inline "SelectRoot" into it from DAGISelHeader.
Sink some other stuff out of DAGISelHeader into SDISel.

Eliminate the various 'Indent' stuff from various targets, which dates
to when isel was recursive.

 17 files changed, 114 insertions(+), 430 deletions(-)

llvm-svn: 97555
2010-03-02 06:34:30 +00:00
Bill Wendling
5990930d72 Remove dead parameter passing.
llvm-svn: 97536
2010-03-02 01:55:18 +00:00
Chris Lattner
21ad1fd291 stop using generated sdnodexforms.
llvm-svn: 97485
2010-03-01 19:38:53 +00:00
Richard Osborne
fe30a8a2c1 Fix XCoreTargetLowering::isLegalAddressingMode() to handle VoidTy.
Previously LoopStrengthReduce would sometimes be unable to find
a legal formula, causing an assertion failure.

llvm-svn: 97226
2010-02-26 16:44:51 +00:00
Richard Osborne
92fb0be76b Don't mark call instruction as a barrier.
llvm-svn: 96983
2010-02-23 21:08:11 +00:00
Richard Osborne
eb0446c12a ECALLF, ECALLT shouldn't be marked as barriers.
llvm-svn: 96964
2010-02-23 18:29:49 +00:00
Richard Osborne
9abd3b3ca7 Mark unconditional branches as barriers. Found using -verify-machineinstrs
llvm-svn: 96960
2010-02-23 18:13:38 +00:00
Richard Osborne
ff660d72eb Remove unused lowering function LowerJumpTable
llvm-svn: 96943
2010-02-23 14:17:20 +00:00
Richard Osborne
7387249531 Lower BR_JT on the XCore to a jump into a series of jump instructions.
llvm-svn: 96942
2010-02-23 13:25:07 +00:00
Anton Korobeynikov
ef1862e256 Move TLOF implementations to libCodegen to resolve layering violation.
llvm-svn: 96288
2010-02-15 22:37:53 +00:00
David Greene
dd3a290ebf Remove an assumption of default arguments. This is in anticipation of a
change to SelectionDAG build APIs.

llvm-svn: 96227
2010-02-15 16:49:52 +00:00
Chris Lattner
ba70b52fe6 no need to add the instruction count anymore.
llvm-svn: 96212
2010-02-15 06:38:41 +00:00
Dan Gohman
92b6122204 Fix "the the" and similar typos.
llvm-svn: 95781
2010-02-10 16:03:48 +00:00
Chris Lattner
6d7856867a print all the newlines at the end of instructions with
OutStreamer.AddBlankLine instead of textually.

llvm-svn: 95734
2010-02-10 00:36:00 +00:00
Chris Lattner
edf1e280a2 rejigger the world so that EmitInstruction prints the \n at
the end of the instruction instead of expecting the caller to
do it.  This currently causes the asm-verbose instruction 
comments to be on the next line.

llvm-svn: 95178
2010-02-03 01:09:55 +00:00
Evan Cheng
9057fea7ef Revert 95130.
llvm-svn: 95160
2010-02-02 23:55:14 +00:00
Chris Lattner
643f2f9bc4 refactor code so that LLVMTargetMachine creates the asmstreamer and
mccontext instead of having AsmPrinter do it.  This allows other 
types of MCStreamer's to be passed in.

llvm-svn: 95155
2010-02-02 23:37:42 +00:00
Evan Cheng
48375fbf4f Pass callsite return type to TargetLowering::LowerCall and use that to check sibcall eligibility.
llvm-svn: 95130
2010-02-02 21:29:10 +00:00
Chris Lattner
d7a8482810 convert the last 3 targets to use EmitFunctionBody() now that
it has before/end body hooks.

 lib/Target/Alpha/AsmPrinter/AlphaAsmPrinter.cpp |   49 ++-----------
 lib/Target/Mips/AsmPrinter/MipsAsmPrinter.cpp   |   87 ++++++------------------
 lib/Target/XCore/AsmPrinter/XCoreAsmPrinter.cpp |   56 +++------------
 test/CodeGen/XCore/ashr.ll                      |    2 
 4 files changed, 48 insertions(+), 146 deletions(-)

llvm-svn: 94741
2010-01-28 06:22:43 +00:00
Chris Lattner
138a5f1d72 Switch MSP430, SPU, Sparc, and SystemZ to use EmitFunctionBody().
Diffstat:
 6 files changed, 30 insertions(+), 284 deletions(-)

llvm-svn: 94727
2010-01-28 01:48:52 +00:00
Chris Lattner
8411a9084e Remove the argument from EmitJumpTableInfo, because it doesn't need it.
Move the X86 implementation of function body emission up to 
AsmPrinter::EmitFunctionBody, which works by calling the virtual
EmitInstruction method.

llvm-svn: 94716
2010-01-28 01:02:27 +00:00
Chris Lattner
6a127932c1 Drop the argument to AsmPrinter::EmitConstantPool and make it virtual.
Overload it in the ARM backend to do nothing, since is does insane
constant pool emission.

llvm-svn: 94708
2010-01-28 00:19:24 +00:00
Jeffrey Yasskin
fb10587e50 Kill ModuleProvider and ghost linkage by inverting the relationship between
Modules and ModuleProviders. Because the "ModuleProvider" simply materializes
GlobalValues now, and doesn't provide modules, it's renamed to
"GVMaterializer". Code that used to need a ModuleProvider to materialize
Functions can now materialize the Functions directly. Functions no longer use a
magic linkage to record that they're materializable; they simply ask the
GVMaterializer.

Because the C ABI must never change, we can't remove LLVMModuleProviderRef or
the functions that refer to it. Instead, because Module now exposes the same
functionality ModuleProvider used to, we store a Module* in any
LLVMModuleProviderRef and translate in the wrapper methods.  The bindings to
other languages still use the ModuleProvider concept.  It would probably be
worth some time to update them to follow the C++ more closely, but I don't
intend to do it.

Fixes http://llvm.org/PR5737 and http://llvm.org/PR5735.

llvm-svn: 94686
2010-01-27 20:34:15 +00:00
Chris Lattner
2743ad432d Switch MSP430, CellSPU, SystemZ, Darwin/PPC, Alpha, and Sparc to
EmitFunctionHeader:

7 files changed, 16 insertions(+), 210 deletions(-)

llvm-svn: 94630
2010-01-27 00:17:20 +00:00
Evan Cheng
237629e476 Eliminate target hook IsEligibleForTailCallOptimization.
Target independent isel should always pass along the "tail call" property. Change
target hook LowerCall's parameter "isTailCall" into a refernce. If the target
decides it's impossible to honor the tail call request, it should set isTailCall
to false to make target independent isel happy.

llvm-svn: 94626
2010-01-27 00:07:07 +00:00
Chris Lattner
325a36c358 Eliminate SetDirective, and replace it with HasSetDirective.
Default HasSetDirective to true, since most targets have it.

The targets that claim to not have it probably do, or it is
spelled differently. These include Blackfin, Mips, Alpha, and
PIC16.  All of these except pic16 are normal ELF targets, so
they almost certainly have it.

llvm-svn: 94585
2010-01-26 20:40:54 +00:00
Chris Lattner
b4a5d00176 add a new MachineBasicBlock::getSymbol method, replacing
the AsmPrinter::GetMBBSymbol.

llvm-svn: 94515
2010-01-26 04:55:51 +00:00
Chris Lattner
416de57b74 don't bother setting the AsmPrinter::MF ivar, now that
AsmPrinter::SetupMachineFunction sets it.  Note that systemz
and msp430 didn't.  Yay for reduced inconsistency! :)

llvm-svn: 94510
2010-01-26 04:38:11 +00:00
Chris Lattner
1e05dd3446 eliminate redundant argument to EmitJumpTableInfo
llvm-svn: 94464
2010-01-25 22:41:33 +00:00
Chris Lattner
5a57121631 make -fno-rtti the default unless a directory builds with REQUIRES_RTTI.
llvm-svn: 94378
2010-01-24 20:43:08 +00:00
Chris Lattner
5fb9cab9dc add missing break, PR6114, patch by M Wahab.
llvm-svn: 94197
2010-01-22 19:11:53 +00:00
Chris Lattner
276811b58a Stop building RTTI information for *most* llvm libraries. Notable
missing ones are libsupport, libsystem and libvmcore.  libvmcore is
currently blocked on bugpoint, which uses EH.  Once it stops using
EH, we can switch it off.

This #if 0's out 3 unit tests, because gtest requires RTTI information.
Suggestions welcome on how to fix this.

llvm-svn: 94164
2010-01-22 06:49:46 +00:00
Chris Lattner
2e8baf1561 reduce redundant are's.
llvm-svn: 94008
2010-01-20 17:53:51 +00:00
Chris Lattner
f25a9e1265 revert 93934, removing the MCAsmInfo endianness bit. I can't
stomache MCAsmInfo having this, and I found a better solution to
this layering issue.

llvm-svn: 93985
2010-01-20 06:34:14 +00:00
Chris Lattner
8e3badb9a7 give MCAsmInfo a 'has little endian' bit. This is unfortunate, but
I really want clients of the streamer to be able to say "emit this
64-bit integer" and have it get broken down right by the streamer.

I may change this in the future, we'll see how it works out.

llvm-svn: 93934
2010-01-19 22:42:28 +00:00
Chris Lattner
2842ccd76f eliminate AsmPrinter::EmitZeros: just use MCStreamer directly.
llvm-svn: 93918
2010-01-19 21:51:22 +00:00