Jim Grosbach
4ca61d9877
ARM encoding information for CLREX, SWP and SWPB. Add comment for sjlj pseudos and a FIXME for TLS.
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llvm-svn: 117702
2010-10-29 20:21:36 +00:00
Dan Gohman
85557399a1
Make ScalarEvolution::forgetLoop forget all contained loops too, because
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they may have ValuesAtScopes map entries referencing their outer loops.
This fixes a user-after-free reported in PR8471.
llvm-svn: 117698
2010-10-29 20:16:10 +00:00
Jim Grosbach
162e3345fb
ARM mode LDREX*/STREX* binary encodings.
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llvm-svn: 117695
2010-10-29 19:58:57 +00:00
Jim Grosbach
5bc94b46a9
Encoding information for ARM conditional move instructions.
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llvm-svn: 117687
2010-10-29 19:28:17 +00:00
Jakob Stoklund Olesen
469a9ef414
Fix sign error.
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llvm-svn: 117677
2010-10-29 18:21:18 +00:00
Evan Cheng
392d2cbdcc
Avoiding overly aggressive latency scheduling. If the two nodes share an
...
operand and one of them has a single use that is a live out copy, favor the
one that is live out. Otherwise it will be difficult to eliminate the copy
if the instruction is a loop induction variable update. e.g.
BB:
sub r1, r3, #1
str r0, [r2, r3]
mov r3, r1
cmp
bne BB
=>
BB:
str r0, [r2, r3]
sub r3, r3, #1
cmp
bne BB
This fixed the recent 256.bzip2 regression.
llvm-svn: 117675
2010-10-29 18:09:28 +00:00
Evan Cheng
92293993bd
- Don't schedule nodes with only MVT::Flag and MVT::Other values for latency.
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- Compute CopyToReg use operand latency correctly.
llvm-svn: 117674
2010-10-29 18:07:31 +00:00
Jakob Stoklund Olesen
1f2fb9a020
Don't transfer unused values to the new intervals formed by splitting.
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llvm-svn: 117673
2010-10-29 17:47:49 +00:00
Jim Grosbach
edec5cc6b8
Handle ARM addrmode5 instructions with an offset.
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llvm-svn: 117672
2010-10-29 17:41:25 +00:00
Benjamin Kramer
d84e7a7b91
Silence Release build warnings.
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llvm-svn: 117671
2010-10-29 17:40:05 +00:00
Jakob Stoklund Olesen
d56c4457a6
Teach ConnectedVNInfoEqClasses::Classify to deal with unused values.
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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
e577489ba5
Never propagate the idom value out of a block that defines its own value.
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llvm-svn: 117669
2010-10-29 17:37:25 +00:00
John Thompson
6115a7f1d4
Inline asm multiple alternative constraints development phase 2 - improved basic logic, added initial platform support.
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llvm-svn: 117667
2010-10-29 17:29:13 +00:00
Dan Gohman
85403d8246
Check if ErrMsg is null. This fixes the "not" command.
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llvm-svn: 117666
2010-10-29 17:20:42 +00:00
Dan Gohman
6a889e86df
Fix these error messages to be less confusing. These error
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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
b27988e5bd
Make Program::Wait differentiate execution failure due to the file
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being not found from the file being not executable.
llvm-svn: 117664
2010-10-29 16:54:25 +00:00
Jim Grosbach
6f257bd31b
Revert 117660. Apparently it's not as trivial as that...
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llvm-svn: 117663
2010-10-29 16:50:53 +00:00
Dan Gohman
a80b1afde3
Make Program::Wait provide an error message string for errors
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executing the child process and abnormal child process termination.
llvm-svn: 117661
2010-10-29 16:39:01 +00:00
Jim Grosbach
8c9a2ee86e
ARM addrmode5 instructions have neither writeback nor post-indexed modes.
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llvm-svn: 117660
2010-10-29 16:38:59 +00:00
Jim Grosbach
29961ebfc5
Trailing whitespace.
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llvm-svn: 117651
2010-10-29 14:46:02 +00:00
Benjamin Kramer
f2442da5f6
ARMAsmParser: Plug a memory leak.
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llvm-svn: 117648
2010-10-29 09:43:39 +00:00
Eric Christopher
930a767468
Add an unreachable to silence warning - the switch is actually
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fully enumerated.
llvm-svn: 117647
2010-10-29 09:26:59 +00:00
Bill Wendling
d9412db2c8
This may be an ARM target, so check for _Unwind_SjLj_Resume.
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llvm-svn: 117643
2010-10-29 07:46:01 +00:00
Dan Gohman
753c9ce807
Teach memdep to use pointsToConstantMemory to determine that loads
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from constant memory don't alias any stores.
llvm-svn: 117636
2010-10-29 01:14:04 +00:00
Jakob Stoklund Olesen
b7a4b7a7b0
Fix broken equivalence class calculation. We could probably also use
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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
1210a5145a
Print out the connected components in the verifier after complaining about their
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multiplicity.
llvm-svn: 117630
2010-10-29 00:40:57 +00:00
Jakob Stoklund Olesen
e446520687
Run a verification pass before any splitting to better distribute blame.
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llvm-svn: 117629
2010-10-29 00:40:55 +00:00
Chris Lattner
115cd02d22
add simple support for addrmode5 operands, allowing
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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
bf9c3c8947
Ignore empty blocks.
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llvm-svn: 117615
2010-10-28 22:11:59 +00:00
Chris Lattner
ef237e6013
give better error diagnostics, for example:
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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
ba1e908431
hook up getOpcodeName for ARM so that "llc -show-mc-inst" includes
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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
913ce7ebc8
Improvements to .section parsing:
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* 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
4210ffb9c5
move a method out of line.
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llvm-svn: 117605
2010-10-28 21:28:01 +00:00
Chris Lattner
b6c7a9e204
remove the rest of hte owningptr's, no functionality change.
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llvm-svn: 117603
2010-10-28 20:52:15 +00:00
Jakob Stoklund Olesen
c570151dc2
One day, physical register live ranges will be sensible.
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llvm-svn: 117602
2010-10-28 20:44:22 +00:00
Jakob Stoklund Olesen
ccbfbefd93
Replace SplitKit SSA update with an iterative algorithm very similar to the one
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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
6f4262448e
Make MachineDominators available for SplitEditor. We are going to need it for
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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
35f9c58245
Add a temporary command line option to verify machine code after each spill or
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split.
llvm-svn: 117597
2010-10-28 20:34:47 +00:00
Dan Gohman
d512ed689c
Revert r117582, which reverted r77396. Searching PATH for a string
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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
b562975139
Add support for the .string directive.
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llvm-svn: 117592
2010-10-28 20:02:27 +00:00
Devang Patel
a496603faf
Do not work too hard to find type's file info. There is a special field to record file info.
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llvm-svn: 117588
2010-10-28 19:50:08 +00:00
Rafael Espindola
f230319275
Defined weak symbols should have non-zero value.
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llvm-svn: 117585
2010-10-28 19:39:57 +00:00
Mikhail Glushenkov
8988adb7db
llvmc: Make ExecuteProgram() look in the driver directory first.
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llvm-svn: 117584
2010-10-28 19:33:08 +00:00
Mikhail Glushenkov
7ee0f678cb
Remove an unnecessary check and an unnecessary temporary.
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llvm-svn: 117583
2010-10-28 19:33:04 +00:00
Mikhail Glushenkov
b727c53cff
Revert r77396.
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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
e2c628c84f
Trailing whitespace.
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llvm-svn: 117581
2010-10-28 19:32:53 +00:00
Rafael Espindola
862d688cbd
Fix relocations with renamed symbols.
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llvm-svn: 117575
2010-10-28 19:08:03 +00:00
Benjamin Kramer
fbfb8cf5f8
Reduce malloc thrashing.
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llvm-svn: 117572
2010-10-28 18:41:23 +00:00
Jim Grosbach
d02c1c7d77
PLD, PLDW, PLI encodings, plus refactor their use of addrmode2.
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llvm-svn: 117571
2010-10-28 18:34:10 +00:00
Rafael Espindola
e62cf892ae
Aliases defined with .symver should copy the binding of the symbols they alias.
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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