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42655 Commits

Author SHA1 Message Date
Jakob Stoklund Olesen 140542fcea Don't transfer unused values to the new intervals formed by splitting. 
llvm-svn: 117673
 2010-10-29 17:47:49 +00:00
Jim Grosbach 16bd9f1ab5 Handle ARM addrmode5 instructions with an offset. 
llvm-svn: 117672
 2010-10-29 17:41:25 +00:00
Benjamin Kramer 25ed920b0e Silence Release build warnings. 
llvm-svn: 117671
 2010-10-29 17:40:05 +00:00
Jakob Stoklund Olesen dff6a6e4f1 Teach ConnectedVNInfoEqClasses::Classify to deal with unused values. 
We don't want unused values forming their own equivalence classes, so we lump
them all together in one class, and then merge them with the class of the last
used value.

llvm-svn: 117670
 2010-10-29 17:37:29 +00:00
Jakob Stoklund Olesen 2cdca45861 Never propagate the idom value out of a block that defines its own value. 
llvm-svn: 117669
 2010-10-29 17:37:25 +00:00
John Thompson e8360b7182 Inline asm multiple alternative constraints development phase 2 - improved basic logic, added initial platform support. 
llvm-svn: 117667
 2010-10-29 17:29:13 +00:00
Dan Gohman 5bc07d2bce Check if ErrMsg is null. This fixes the "not" command. 
llvm-svn: 117666
 2010-10-29 17:20:42 +00:00
Dan Gohman e1db7f2005 Fix these error messages to be less confusing. These error 
messages primarily indicate errors running the viewer, not
errors with the graph file itself.

llvm-svn: 117665
 2010-10-29 17:03:40 +00:00
Dan Gohman fc81579b5e Make Program::Wait differentiate execution failure due to the file 
being not found from the file being not executable. 

llvm-svn: 117664
 2010-10-29 16:54:25 +00:00
Jim Grosbach 305ec65927 Revert 117660. Apparently it's not as trivial as that... 
llvm-svn: 117663
 2010-10-29 16:50:53 +00:00
Dan Gohman cae3c53b31 Make Program::Wait provide an error message string for errors 
executing the child process and abnormal child process termination.

llvm-svn: 117661
 2010-10-29 16:39:01 +00:00
Jim Grosbach 8682b69b81 ARM addrmode5 instructions have neither writeback nor post-indexed modes. 
llvm-svn: 117660
 2010-10-29 16:38:59 +00:00
Jim Grosbach 624bcc7371 Trailing whitespace. 
llvm-svn: 117651
 2010-10-29 14:46:02 +00:00
Benjamin Kramer 08b8c534f7 ARMAsmParser: Plug a memory leak. 
llvm-svn: 117648
 2010-10-29 09:43:39 +00:00
Eric Christopher 91d7b90185 Add an unreachable to silence warning - the switch is actually 
fully enumerated.

llvm-svn: 117647
 2010-10-29 09:26:59 +00:00
Bill Wendling c2d549e007 This may be an ARM target, so check for _Unwind_SjLj_Resume. 
llvm-svn: 117643
 2010-10-29 07:46:01 +00:00
Dan Gohman 15a43965ac Teach memdep to use pointsToConstantMemory to determine that loads 
from constant memory don't alias any stores.

llvm-svn: 117636
 2010-10-29 01:14:04 +00:00
Jakob Stoklund Olesen 13d7e0d012 Fix broken equivalence class calculation. We could probably also use 
EquvivalenceClasses.h except it looks like overkill when elements are continuous
integers.

llvm-svn: 117631
 2010-10-29 00:40:59 +00:00
Jakob Stoklund Olesen b98755472e Print out the connected components in the verifier after complaining about their 
multiplicity.

llvm-svn: 117630
 2010-10-29 00:40:57 +00:00
Jakob Stoklund Olesen a2578fe7f3 Run a verification pass before any splitting to better distribute blame. 
llvm-svn: 117629
 2010-10-29 00:40:55 +00:00
Chris Lattner 5d6f6a061b add simple support for addrmode5 operands, allowing 
vldr.64 to work.  I have no idea if this is fully right, but 
it is in the right direction.

llvm-svn: 117626
 2010-10-29 00:27:31 +00:00
Devang Patel 6e0d58968d Ignore empty blocks. 
llvm-svn: 117615
 2010-10-28 22:11:59 +00:00
Chris Lattner d27b05e54a give better error diagnostics, for example: 
t.s:1:14: error: invalid operand for instruction
vldr.64	d17, [r0]   
       	     ^

instead of:

t.s:1:1: error: unrecognized instruction
vldr.64	d17, [r0]   
^

llvm-svn: 117611
 2010-10-28 21:41:58 +00:00
Chris Lattner f20f79808e hook up getOpcodeName for ARM so that "llc -show-mc-inst" includes 
the opcode string in the inst dump, e.g.:
	vmov	r2, r3, d17             @ encoding: [0x31,0x2b,0x53,0xec]
                                        @ <MCInst #989 VMOVRRD
                                        @  <MCOperand Reg:68>
                                        @  <MCOperand Reg:69>
                                        @  <MCOperand Reg:19>
                                        @  <MCOperand Imm:14>
                                        @  <MCOperand Reg:0>>

The "VMOVRRD" is new.

llvm-svn: 117609
 2010-10-28 21:37:33 +00:00
Rafael Espindola 8aefb66376 Improvements to .section parsing: 
* If we have a M or a G, reject sections without the type
* Only parse the flag specific arguments if we have M or G
* Parse the corresponding arguments for M and G

We ignore the G arguments and flag for now.

llvm-svn: 117608
 2010-10-28 21:33:33 +00:00
Chris Lattner 9487de6160 move a method out of line. 
llvm-svn: 117605
 2010-10-28 21:28:01 +00:00
Chris Lattner 9f9f4ebf0c remove the rest of hte owningptr's, no functionality change. 
llvm-svn: 117603
 2010-10-28 20:52:15 +00:00
Jakob Stoklund Olesen dc5e7065a4 One day, physical register live ranges will be sensible. 
llvm-svn: 117602
 2010-10-28 20:44:22 +00:00
Jakob Stoklund Olesen c9f90c2a32 Replace SplitKit SSA update with an iterative algorithm very similar to the one 
in SSAUpdaterImpl.h

Verifying live intervals revealed that the old method was completely wrong, and
we need an iterative approach to calculating PHI placemant. Fortunately, we have
MachineDominators available, so we don't have to compute that over and over
like SSAUpdaterImpl.h must.

Live-out values are cached between calls to mapValue() and computed in a greedy
way, so most calls will be working with very small block sets.

Thanks to Bob for explaining how this should work.

llvm-svn: 117599
 2010-10-28 20:34:52 +00:00
Jakob Stoklund Olesen e172a8b794 Make MachineDominators available for SplitEditor. We are going to need it for 
proper SSA updating.

This doesn't cause MachineDominators to be recomputed since we are already
requiring MachineLoopInfo which uses dominators as well.

llvm-svn: 117598
 2010-10-28 20:34:50 +00:00
Jakob Stoklund Olesen 1005cf323d Add a temporary command line option to verify machine code after each spill or 
split.

llvm-svn: 117597
 2010-10-28 20:34:47 +00:00
Dan Gohman 47215f4e04 Revert r117582, which reverted r77396. Searching PATH for a string 
which contains slashes is inconsistent with the meaning of PATH on
Unix-type platforms, and pretty surprising.

If the user has given a specific path to execute and we can't
execute it, we should fail and say why.  (Apparently the new
posix_spawn code doesn't always say why, but that's a separate
issue.)

llvm-svn: 117596
 2010-10-28 20:34:33 +00:00
Rafael Espindola 63760ba38e Add support for the .string directive. 
llvm-svn: 117592
 2010-10-28 20:02:27 +00:00
Devang Patel 1c75865037 Do not work too hard to find type's file info. There is a special field to record file info. 
llvm-svn: 117588
 2010-10-28 19:50:08 +00:00
Rafael Espindola 3c5a54e4b9 Defined weak symbols should have non-zero value. 
llvm-svn: 117585
 2010-10-28 19:39:57 +00:00
Mikhail Glushenkov 4b94986562 llvmc: Make ExecuteProgram() look in the driver directory first. 
llvm-svn: 117584
 2010-10-28 19:33:08 +00:00
Mikhail Glushenkov fdba1308ee Remove an unnecessary check and an unnecessary temporary. 
llvm-svn: 117583
 2010-10-28 19:33:04 +00:00
Mikhail Glushenkov d7faab5c95 Revert r77396. 
Original commit message:

    On "Unix", if Program::FindProgramByName is given a name containing
    slashes, just go with it, regardless of whether it looks like it will
    be executable. This follows the behavior of sh(1) more closely.

It's better when behaviour is consistent between platforms. This change also
makes FindExecutable() behave as expected on unix-likes (before this commit, it
used to always succeed).

llvm-svn: 117582
 2010-10-28 19:32:58 +00:00
Mikhail Glushenkov 0e9d9b51eb Trailing whitespace. 
llvm-svn: 117581
 2010-10-28 19:32:53 +00:00
Rafael Espindola 29f70afbae Fix relocations with renamed symbols. 
llvm-svn: 117575
 2010-10-28 19:08:03 +00:00
Benjamin Kramer 851a994a42 Reduce malloc thrashing. 
llvm-svn: 117572
 2010-10-28 18:41:23 +00:00
Jim Grosbach 505607e4c6 PLD, PLDW, PLI encodings, plus refactor their use of addrmode2. 
llvm-svn: 117571
 2010-10-28 18:34:10 +00:00
Rafael Espindola 6cd76e63f8 Aliases defined with .symver should copy the binding of the symbols they alias. 
Move the existing patching for undefined symbols so that all the patching
is done in the same function.

llvm-svn: 117570
 2010-10-28 18:33:03 +00:00
Devang Patel c4b69051b7 Technically DIFile scope should also be handled here. 
llvm-svn: 117563
 2010-10-28 17:30:52 +00:00
Chris Lattner b24ba7be49 rearrange ParseRegisterList. 
llvm-svn: 117560
 2010-10-28 17:23:41 +00:00
Chris Lattner bd7c9fa36b refactor some code to simplify it, eliminating some owningptr's. 
llvm-svn: 117559
 2010-10-28 17:20:03 +00:00
Bob Wilson f63da12be9 Teach the DAG combiner to fold a splat of a splat. Radar 8597790. 
Also do some minor refactoring to reduce indentation.

llvm-svn: 117558
 2010-10-28 17:06:14 +00:00
Roman Divacky 41e6cebb40 Use the IDVal directly as there's no need to convert to std::string. 
Pointed out by Chris!

llvm-svn: 117557
 2010-10-28 16:57:58 +00:00
Roman Divacky fdac6365ab Implement .equ directive as a synonym to .set. 
llvm-svn: 117553
 2010-10-28 16:22:58 +00:00
Duncan Sands 89d412a140 Fix PR8494: when reading invalid bitcode, getTypeByID may return 
a null pointer.

llvm-svn: 117551
 2010-10-28 15:47:26 +00:00