Commit Graph

2872 Commits

Author SHA1 Message Date
Evan Cheng
7545f49a5e Teach MachineFrameInfo to track maximum alignment while stack objects are being
created. This ensures it's updated at all time. It means targets which perform
dynamic stack alignment would know whether it is required and whether frame
pointer register cannot be made available register allocation.
This is a fix for rdar://7625239. Sorry, I can't create a reasonably sized test
case.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96069 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-13 01:56:41 +00:00
Anton Korobeynikov
4dd162f394 Cleanup stdcall / fastcall name mangling.
This should fix alot of problems we saw so far, e.g. PRs 5851 & 2936

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95980 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-12 15:28:40 +00:00
Bob Wilson
fe61fb1e10 Add a new pass on machine instructions to optimize away PHI cycles that
reduce down to a single value.  InstCombine already does this transformation
but DAG legalization may introduce new opportunities.  This has turned out to
be important for ARM where 64-bit values are split up during type legalization:
InstCombine is not able to remove the PHI cycles on the 64-bit values but
the separate 32-bit values can be optimized.  I measured the compile time 
impact of this (running llc on 176.gcc) and it was not significant.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95951 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-12 01:30:21 +00:00
Dale Johannesen
9a722caa26 Allow isDebug inquiry on any MO.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95818 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-10 23:03:20 +00:00
Dan Gohman
f3b11aa6a7 Fix several comments which had previously been "the the" where a
different word was intended.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95795 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-10 20:04:19 +00:00
Dan Gohman
f451cb870e Fix "the the" and similar typos.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95781 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-10 16:03:48 +00:00
Chris Lattner
45282aedb9 fix a layering violation: VirtRegRewriter.cpp shouldn't use AsmPrinter.h.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95748 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-10 01:23:18 +00:00
Chris Lattner
a655f088b8 Stop MachineInstr.h from #including AsmPrinter.h
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95741 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-10 01:04:16 +00:00
Chris Lattner
47529c9ac6 Move verbose asm instruction comments to using MCStreamer.
The major win of this is that the code is simpler and they 
print on the same line as the instruction again:

        movl    %eax, 96(%esp)          ## 4-byte Spill
        movl    96(%esp), %eax          ## 4-byte Reload
        cmpl    92(%esp), %eax          ## 4-byte Folded Reload
        jl      LBB7_86



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95738 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-10 00:47:53 +00:00
Dale Johannesen
3b1906f48d more comment updates
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95736 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-10 00:44:23 +00:00
Dale Johannesen
9653f9ec97 Add isDebug argument to ChangeToRegister; this prevents
the field from being used uninitialized later in some cases.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95735 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-10 00:41:49 +00:00
Chris Lattner
518bb53485 move target-independent opcodes out of TargetInstrInfo
into TargetOpcodes.h.  #include the new TargetOpcodes.h
into MachineInstr.  Add new inline accessors (like isPHI())
to MachineInstr, and start using them throughout the 
codebase.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95687 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-09 19:54:29 +00:00
Dale Johannesen
38007ca86a Debug operands should not be def or kill.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95632 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-09 00:42:08 +00:00
Lang Hames
e0710472c8 Changed the definition of an "invalid" slot to include the empty & tombstone values, but not zero.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95631 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-09 00:41:23 +00:00
Chris Lattner
9517554458 now that @GOTOFF is no longer represented as a suffix on a
MCSymbol, we can remove the 'suffix' argument of 
GetBlockAddressSymbol.  Do so.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95601 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-08 23:10:08 +00:00
Dale Johannesen
a65aa0f0bb Add a Debug bit to MachineOperand, for uses that
are from debug info.  Add an iterator to MachineRegisterInfo
to skip Debug operands when walking the use list.  No
functional change yet.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95473 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-06 02:28:32 +00:00
Evan Phoenix
85bb54f964 Disable external stubs for X86-32 and X86-64
Instruction selection for X86 now can choose an instruction
sequence that will fit any address of any symbol, no matter
the pointer width. X86-64 uses a mov+call-via-reg sequence
for this.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95323 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-04 19:56:59 +00:00
Chris Lattner
d269a6e460 make MachineModuleInfoMachO hold non-const MCSymbol*'s instead
of const ones.  non-const ones aren't very useful, because you can't
even, say, emit them.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95205 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-03 06:18:30 +00:00
Chris Lattner
f64159c840 privatize a bunch of methods and move \n printing into them.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95186 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-03 01:46:05 +00:00
Chris Lattner
56591ab218 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95155 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-02 23:37:42 +00:00
Chris Lattner
3813d8adf3 Remove a bunch of stuff around the edges of the ELF writer.
Now the only use of the ELF writer is the JIT, which won't be
easy to fix in the short term. :( :(



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95148 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-02 22:31:11 +00:00
Nate Begeman
39bdc78e6f Kill the Mach-O writer, and temporarily make filetype=obj an error.
The MCStreamer based assemblers will take over for this functionality.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95033 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-01 23:56:58 +00:00
Duncan Sands
aec0081fac Do an early exit when the result is known cheaply.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95002 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-01 20:57:35 +00:00
Bill Wendling
4533cac557 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94757 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-28 21:51:40 +00:00
Chris Lattner
edfe776ac2 add target hooks for emitting random gunk before and after the function body.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94732 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-28 01:58:58 +00:00
Jim Grosbach
ca752c9020 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.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94726 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-28 01:45:32 +00:00
Chris Lattner
d49fe1b6bc 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.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94722 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-28 01:28:58 +00:00
Chris Lattner
14c38ec2af 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.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94716 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-28 01:02:27 +00:00
Chris Lattner
a2406190ca 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.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94708 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-28 00:19:24 +00:00
Chris Lattner
be9dfcef82 rename printVisibility to EmitVisibility and make it private,
constify EmitLinkage.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94705 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-28 00:05:10 +00:00
Chris Lattner
aeb7be3435 add a helper function for bumping up the alignment of a machine function.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94700 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-27 23:35:43 +00:00
Chris Lattner
2cf7251d39 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().


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94667 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-27 07:21:55 +00:00
Chris Lattner
a3e8883d71 pull linkage emission code out to a new EmitLinkage function.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94621 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-26 23:47:12 +00:00
Chris Lattner
5c8697488a remove a noop function.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94616 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-26 23:26:29 +00:00
Chris Lattner
b11caedd6f 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94614 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-26 23:18:44 +00:00
Chris Lattner
eec791afb1 constify a bunch of dwarf stuff now that the registerinfo method
is constified.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94613 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-26 23:18:02 +00:00
Chris Lattner
3b131d7cc4 Now that printPICJumpTableSetLabel is not overloaded,
inline it into its only caller, allowing us to simplify it
and hoist bits out of the loop.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94528 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-26 06:42:44 +00:00
Chris Lattner
589c6f620e 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.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94526 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-26 06:28:43 +00:00
Chris Lattner
beeb93e6ba add a new MachineJumpTableInfo::getJTISymbol method,
use it to implement the default TargetLowering::getPICJumpTableRelocBaseExpr


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94523 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-26 05:58:28 +00:00
Chris Lattner
6bf1def159 rename printPICJumpTableEntry -> EmitJumpTableEntry,
make it private and non-virtual.  It handles the non-pic
case too, so just use it, simplifying EmitJumpTableInfo.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94517 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-26 05:10:10 +00:00
Chris Lattner
f71cb015c1 add a new MachineBasicBlock::getSymbol method, replacing
the AsmPrinter::GetMBBSymbol.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94515 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-26 04:55:51 +00:00
Chris Lattner
b84822fb7b 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94509 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-26 04:35:26 +00:00
Chris Lattner
85fe07866a Add support for target-specific 32-bit custom-lowered
jump table entries.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94505 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-26 04:05:28 +00:00
Chris Lattner
071c62fad0 Rearrange handling of jump tables. Highlights:
1. MachineJumpTableInfo is now created lazily for a function the first time
   it actually makes a jump table instead of for every function.
2. The encoding of jump table entries is now described by the
   MachineJumpTableInfo::JTEntryKind enum.  This enum is determined by the
   TLI::getJumpTableEncoding() hook, instead of by lots of code scattered
   throughout the compiler that "knows" that jump table entries are always
   32-bits in pic mode (for example).
3. The size and alignment of jump table entries is now calculated based on
   their kind, instead of at machinefunction creation time.

Future work includes using the EntryKind in more places in the compiler,
eliminating other logic that "knows" the layout of jump tables in various
situations.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94470 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-25 23:26:13 +00:00
Chris Lattner
44e87255e9 eliminate redundant argument to EmitJumpTableInfo
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94464 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-25 22:41:33 +00:00
Chris Lattner
798d125659 handle the _set_ symbol with an MCSymbol.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94449 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-25 21:17:10 +00:00
Chris Lattner
bfcb09688c sink an arm specific method out of asmprinter into the ARMAsmPrinter and
rename it to avoid shadowing.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94440 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-25 19:39:52 +00:00
Chris Lattner
a6594fc715 mcstreamerize .file and .file. This also fixes an issue where the
normal form of .file would fail if the filename had a weird character
in it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94437 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-25 18:58:59 +00:00
Bill Wendling
187361b056 Remove the '-disable-scheduling' flag and replace it with the 'source' option of
the '-pre-RA-sched' flag. It actually makes more sense to do it this way. Also,
keep track of the SDNode ordering by default. Eventually, we would like to make
this ordering a way to break a "tie" in the scheduler. However, doing that now
breaks the "CodeGen/X86/abi-isel.ll" test for 32-bit Linux.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94308 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-23 10:26:57 +00:00
Chris Lattner
152a29bfa6 mcize visibility directives.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94295 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-23 06:53:23 +00:00