Commit Graph

8794 Commits

Author SHA1 Message Date
Dale Johannesen
c84816a62e Make local RA smarter about reusing input register of a copy
as output.  Needed for (functional) correctness in inline asm,
and should be generally beneficial.  7361612.

llvm-svn: 95050
2010-02-02 02:08:02 +00:00
Daniel Dunbar
13ad81bd70 Update CMake.
llvm-svn: 95041
2010-02-02 01:12:20 +00:00
Nate Begeman
0b810279c8 Kill the Mach-O writer, and temporarily make filetype=obj an error.
The MCStreamer based assemblers will take over for this functionality.

llvm-svn: 95033
2010-02-01 23:56:58 +00:00
Mon P Wang
d74e0023c5 Improve EXTRACT_VECTOR_ELT patch based on comments from Duncan
llvm-svn: 95012
2010-02-01 22:15:09 +00:00
Chris Lattner
f5edeebd8c eliminate a bunch of pointless LLVMContext arguments.
llvm-svn: 95001
2010-02-01 20:48:08 +00:00
Dale Johannesen
0b30cfc57e fix PR 6157. Testcase pending.
llvm-svn: 94996
2010-02-01 19:54:53 +00:00
Mon P Wang
72c60c73af Fixed a couple of optimization with EXTRACT_VECTOR_ELT that assumes the result
type is the same as the element type of the vector.  EXTRACT_VECTOR_ELT can
be used to extended the width of an integer type.  This fixes a bug for
Generic/vector-casts.ll on a ppc750.

llvm-svn: 94990
2010-02-01 19:03:18 +00:00
Devang Patel
160c92dd19 Emit declaration DIE for the class static variables.
llvm-svn: 94870
2010-01-30 01:08:30 +00:00
Dale Johannesen
e057403835 Fix a case where debug_value could affect codegen.
llvm-svn: 94866
2010-01-30 00:57:47 +00:00
Devang Patel
aedd6f5b33 Add size and location info in DW_TAG_class_type descriptor.
llvm-svn: 94822
2010-01-29 18:34:58 +00:00
Duncan Sands
3327498095 Change the SREM case to match the logic in the IR version ComputeMaskedBits.
llvm-svn: 94805
2010-01-29 09:45:26 +00:00
Bill Wendling
954cb187e0 Assign the ordering of SDNodes in a much less intrusive fashion. After the
"visit*" method is called, take the newly created nodes, walk them in a DFS
fashion, and if they don't have an ordering set, then give it one.

llvm-svn: 94757
2010-01-28 21:51:40 +00:00
Chris Lattner
c968f4475e add target hooks for emitting random gunk before and after the function body.
llvm-svn: 94732
2010-01-28 01:58:58 +00:00
Jim Grosbach
54c0530834 Update of 94055 to track the IR level call site information via an intrinsic.
This allows code gen and the exception table writer to cooperate to make sure
landing pads are associated with the correct invoke locations.

llvm-svn: 94726
2010-01-28 01:45:32 +00:00
Chris Lattner
73de5fbfc3 Give AsmPrinter the most common expected implementation of
runOnMachineFunction, and switch PPC to use EmitFunctionBody.
The two ppc asmprinters now don't heave to define 
runOnMachineFunction.

llvm-svn: 94722
2010-01-28 01:28:58 +00:00
Chris Lattner
565896b9eb emit a 0 byte instead of a noop if a function is empty on darwin.
"0" is nice and target independent.

llvm-svn: 94718
2010-01-28 01:06:32 +00:00
Chris Lattner
94a946cac4 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
2b796241a7 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
Chris Lattner
cd99546b03 rename printVisibility to EmitVisibility and make it private,
constify EmitLinkage.

llvm-svn: 94705
2010-01-28 00:05:10 +00:00
Dale Johannesen
6eb8e13236 If the only use of something is a DEBUG_VALUE, don't
let that stop it from being deleted, and change the
DEBUG_VALUE value to undef.

llvm-svn: 94694
2010-01-27 22:12:36 +00:00
Chandler Carruth
c07bd40b3e Silence GCC warnings with asserts turned off. No functionality change.
llvm-svn: 94673
2010-01-27 10:27:10 +00:00
Chris Lattner
bc1e6f0873 add a new AsmPrinter::EmitFunctionEntryLabel virtual function,
which allows targets to override function entry label emission.
Use it to convert linux/ppc to use EmitFunctionHeader().

llvm-svn: 94667
2010-01-27 07:21:55 +00:00
Evan Cheng
67a69dd2ed 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
bac7498f8e mcize label emission for functions.
llvm-svn: 94624
2010-01-26 23:53:39 +00:00
Chris Lattner
fc2e376a15 use EmitLinkage for functions as well as globals. One output
change is that we now use ".linkonce discard" for global variables
instead of ".linkonce samesize".  These should be the same, just less
strict.  If anyone is interested in mcizing MCSection for COFF targets,
this should be easy to fix.

llvm-svn: 94623
2010-01-26 23:51:52 +00:00
Chris Lattner
dbf5a7617d pull linkage emission code out to a new EmitLinkage function.
llvm-svn: 94621
2010-01-26 23:47:12 +00:00
Chris Lattner
22fc38dd4f rearrange some directives, no functionality change.
llvm-svn: 94620
2010-01-26 23:41:48 +00:00
Chris Lattner
56e9b5975d remove a noop function.
llvm-svn: 94616
2010-01-26 23:26:29 +00:00
Chris Lattner
c7b91156e4 now that enough stuff is constified, move function header printing
logic up from X86 into the common code.  The other targets will 
hopefully start using this soon.

llvm-svn: 94614
2010-01-26 23:18:44 +00:00
Chris Lattner
76555b513c constify a bunch of dwarf stuff now that the registerinfo method
is constified.

llvm-svn: 94613
2010-01-26 23:18:02 +00:00
Evan Cheng
c35b5a123b Allow some automatic tailcall optimization without changing ABI.
llvm-svn: 94611
2010-01-26 23:13:04 +00:00
Chris Lattner
b657c4cdc3 emit jump table an alias ".set" directives through MCStreamer as
assignments.

.set x, a-b

is the same as:

x = a-b

llvm-svn: 94596
2010-01-26 21:53:08 +00:00
Devang Patel
1973df2e3f Use AssertingVH, just to be paranoid.
llvm-svn: 94593
2010-01-26 21:39:14 +00:00
Devang Patel
303a1beea6 Emit DW_AT_containing_type attribute for a class if containing type is known.
llvm-svn: 94587
2010-01-26 21:16:06 +00:00
Chris Lattner
ff234e09b9 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
3dd38a8112 eliminate MCAsmInfo::NeedsSet: we now just use .set on any platform
that has it.

llvm-svn: 94581
2010-01-26 20:20:43 +00:00
Chris Lattner
547c761dd6 eliminate the TargetLowering::UsesGlobalOffsetTable bool, which is
subsumed by TargetLowering::getJumpTableEncoding().  Change uses of
it to be more specific.

llvm-svn: 94529
2010-01-26 06:53:37 +00:00
Chris Lattner
4db603f93b Now that printPICJumpTableSetLabel is not overloaded,
inline it into its only caller, allowing us to simplify it
and hoist bits out of the loop.

llvm-svn: 94528
2010-01-26 06:42:44 +00:00
Chris Lattner
8a785d7a67 Move getJTISymbol from MachineJumpTableInfo to MachineFunction,
which is more convenient, and change getPICJumpTableRelocBaseExpr
to take a MachineFunction to match.

Next, move the X86 code that create a PICBase symbol to
X86TargetLowering::getPICBaseSymbol from 
X86MCInstLower::GetPICBaseSymbol, which was an asmprinter specific 
library.  This eliminates a 'gross hack', and allows us to
implement X86ISelLowering::getPICJumpTableRelocBaseExpr which now
calls it.

This in turn allows us to eliminate the 
X86AsmPrinter::printPICJumpTableSetLabel method, which was the
only overload of printPICJumpTableSetLabel.

llvm-svn: 94526
2010-01-26 06:28:43 +00:00
Chris Lattner
273735bc5a add a new MachineJumpTableInfo::getJTISymbol method,
use it to implement the default TargetLowering::getPICJumpTableRelocBaseExpr

llvm-svn: 94523
2010-01-26 05:58:28 +00:00
Chris Lattner
8a6c1eaabb stub out a new target hook, need some refactoring before I can
implement it.

llvm-svn: 94521
2010-01-26 05:30:30 +00:00
Chris Lattner
cc0f734cd0 simplify asmprinter: only emit .set directives when entries have
EK_LabelDifference32 kind and the target has .set support.  Simplify
X86AsmPrinter::printPICJumpTableSetLabel to make use of recent helpers.

llvm-svn: 94518
2010-01-26 05:15:20 +00:00
Chris Lattner
279de3ef64 rename printPICJumpTableEntry -> EmitJumpTableEntry,
make it private and non-virtual.  It handles the non-pic
case too, so just use it, simplifying EmitJumpTableInfo.

llvm-svn: 94517
2010-01-26 05:10:10 +00:00
Chris Lattner
d051af7551 add a new MachineBasicBlock::getSymbol method, replacing
the AsmPrinter::GetMBBSymbol.

llvm-svn: 94515
2010-01-26 04:55:51 +00:00
Lang Hames
090c7e82dd New PBQP solver.
* Fixed a reduction bug which occasionally led to infinite-cost (invalid)
  register allocation solutions despite the existence finite-cost solutions.
* Significantly reduced memory usage (>50% reduction).
* Simplified a lot of the solver code.

llvm-svn: 94514
2010-01-26 04:49:58 +00:00
Chris Lattner
6715952c25 make MachineFunction keep track of its ID and make
MachineFunctionAnalysis dole them out, instead of having
AsmPrinter do both.  Have the AsmPrinter::SetupMachineFunction
method set the 'AsmPrinter::MF' variable.

llvm-svn: 94509
2010-01-26 04:35:26 +00:00
Chris Lattner
5fc4160ea3 Add support for target-specific 32-bit custom-lowered
jump table entries.

llvm-svn: 94505
2010-01-26 04:05:28 +00:00
Chris Lattner
a7c116016e switch jump table entry emission to be based on EntryKind
instead of magic variables.

llvm-svn: 94500
2010-01-26 03:43:22 +00:00
Evan Cheng
555f61bf58 Implement cond ? -1 : 0 with sbb.
llvm-svn: 94490
2010-01-26 02:00:44 +00:00
Dale Johannesen
d5575f29f1 Generate DEBUG_VALUE comments on x86. The (limited)
dbg.declare's we currently generate go through both
register allocators without perturbing the results.

llvm-svn: 94480
2010-01-26 00:09:58 +00:00